Best explanation I’ve heard on caster, camber and how the changes affect the kart. Don’t suppose you could do more of these? Front and rear track width, axle stiffness, ride height, torsion bars would all be amazing Great channel!
My wife doesn’t like that I found your channel because each Saturday I talk about getting a Tony Kart after watching your vids 😂 love the weekly vids mate, keep it up cause I know she’ll break. 😂 - Matt
What is caster? What does it look like on a kart? What does negative caster look like on a kart? What is camber? What does camber look like? I’m sure this is a fantastic video on how to adjust caster and camber, but it doesn’t explain what they are, or what they look like, or why the adjustments make a difference. Forward, backwards, positive, negative, up, down, jump around.
Another great/informative video, Derek! I race a 401S and would enjoy seeing a video explaining axle stiffness and when to use each. Or a video explaining the quick/essential changes recommended for when it starts raining.
Hi. I feel my kart steers weel, but bounces too much out the Norbert.. also I have the steer is quite heavy. I’m running 2 neg camber and 2 neg tyres out.. convergency
@@PowerRepublic I found i had a problem with the cassis, basically one end higher than the other.. Now is fixed and the problem was gone.. Thank you very much. I want to make you a new question now. The kart performs very well almost all the track, but in one corner i have an exit in first gear (Rotax DD2) and the kart tends to much to loose the tail, i beleave it can be a throttle speed aplication problem, but maybe there si something additional in the setup i can do without affecting the performance in the rest of the circuit.. The track has some low speed tight corners so it has to be taken into account.. Im runnin front end lift to be able to run the kart very pointy.. My weight is 64 Kg.. Thanks
Hello from the US. How would you tune for a multi surface race track? We have a mixture of new asphalt, old asphalt and concrete. And when you say negative vs. positive camber... I've always assumed you'd always be negative (tops of tires closest to each other) vs positive (tops furthest away). I always thought the only reason to use positive camber was on oval tracks :)
g day mate, nah you can use =either on any track. but mostly use the neg when the tyres are brand new. Pos if they are worn out or the track is mega slippery
Hello, Thank you for this awesome video (information). I would like to get more information videos about "Toe-in and Toe-out" (and effect this has on the camber and caster) and "Driving Height". You got a new fan @Holland. Greetings Jordy
Hey this is Sal, Can you please make a video about ECU (what it is and how to tweak different variables related to it)? That would be really helpful...
Power Republic It’s the Rotax Max 125cc. I was wondering if the user can manipulate variables (outputs) from the unit. For example; running the engine rich or lean on fuel mixture... or anything similar.
HalflifeCrew hey mate. Nah on the Rotax 125 the ecu only controls the Spark. Air fuel ratios you can check the exhaust gas with a Lambda (Mychron wideband oxygen sensors are awesome) and adjust the carb jets and float level to suit after your race.
So caster can help front grip, dig the tyres into the ground. And positive camber can hep turn in? Positive camber will gove more grip and negative will release it?
to some degree yes. positive for me helps the kart turn in more (relatively) and negative reduces the entry turn, and helps the kart drive to the exit. neither is perfect for every track/tyre/ambient conditions etc etc so have a play around and see if that works for you too. hope that isn't too vague.
Thanks for the help, my son is doing his first club day at Oakleigh in Melbourne, most of the time he oversteer, our tyres are old and it's going to be cold and little wet, can you recommend us camber and caster, Thanks !
@@PowerRepublic I'd like to see how to spot signs of wear and replacing bearings, gaskets in a bottom end rebuild. I know it is a huge job, thank you for your time.
Great video! Just bought my first kart, Intrepid with Rok 100cc tag. Shop set front end at "neutral" i assume as I don't have the castor camber adjuster with the many little holes. Just an almost flat washer. Does this sound normal to you? I haven't driven a kart in a few years. Thanks!
yep, if you are new, just get to the track and get some K's into you body. the guys at the shop would have set it up for you. the intrepid has an after market adjuster you can buy with the holes in it for castor and camber changes, but you probs won't need them for now. the standard flat ones are most likely the standard 'centre pils' without any 'eccentric'
Hey Jordan, tough question. I have only ever been to 1 track that is concrete so I'm not 100% sure. Normally you have high area on concrete over bitumen. so the kart front tyres should grip well. if that is the case then some extra NEG might help the kart from the Apex to Exit, and stop the kart from bogging down at the Apex ripple strip. hard one for me to comment on. Which track are you racing at that is concrete?
Hi again, finally adding caster for first time. Local track shop said only top side will have the caster pill( arrows pointing forward) and to leave bottom with flat washer with no adj. possible. Intrepid kart. Thoughts?
Dominick Cassara they should be ideally. However I have seen a one hole variation across the kart without the chassis being bent. Just double check your castor angle with the steel ruler in the vertical position like we do in this video. If that’s within 1 mm and your camber is within 0.5mm and you have one hole difference, you should be sweet.
New to the kartingworld, or my son. I have the pleasure of try to learn the mechanical side. For the junior kosmic kart neutral position caster is both arrows to the front. But is it the same to have both arrows towards back ? or should I change them to neutral, both arrows pointing forward? When we bougth the used kart tyres was almost worn out. Still son was driving pretty good.Now we have new tyres...first 2 times to the track everything fine, but third time to the track the kart just slided in every corner and spinning for some reason... I´m still going to check wheel alignement ( no laser ) but can it also be that as you say in the video here that with new tyres and super grip you use negative camber? First I will check the alignement and go to track and see if helps.
I have a question. Turning right the kart couldn't handle any better. Turning Left the kart from the center of the apex out want's to swap ends. I'm running 1mill out on toe and -2mills on the camber with positive caster, ackerman is equal on the sweep.
Hi Denny, -Check first that the ride height is the exact same on the front stab axles. - Next check that you have the exact same Castor set up i.e both arrows forward on a Tony Kart, not one forward and one backwards. - Next up if all those things are good, check for a bent kart or cracked chassis near the rear bearing hangers. - If you remove the side pods, nose cone and wheels, you can lay an axle across the kingpins at the front of the kart and eyeball the straightness against the back axle in the kart (this is surprisingly accurate way to gauge if a kart has a twist in it) Once you have checked all those things and they are perfect, buy 4 reasonably priced bathroom scales and place one under each of your wheels on a flat surface. Sit in the kart with your gear on and with an assistant, measure all the corner weights and compare. Then write me back and tell me what was wrong or if you need further instructions. Derek
Does camber affects opposite in race cars? Because as far as I know adding negative camber to the front gives more front grip. But in go karts as you said positive camber will give more grip.
well I'm not 100% sure in the car game. neg will delay the steering a fraction on the way into the corner. Pos camber makes the kart a little more reactive. these are generalisations, use a little for practise and document the results and you will be on your way to successful front end camber set ups
Hello, i just bougth a cart, and am gonna go racing next season, and am not quite sure what a track with lots of corners, and not many stragiths. what would you wanna change for that type of circuit? thanks for the help :)
Setup I'm sure would be based on how the kart feels around the track first. I'm sure D can advise on a standard setup and from there you would have to adjust according to how the kart is reacting. The amount of mileage on the tires will make a difference to the setup. Also you should measure the seat distance as that will also allow the guys to understand the balance of the kart a little more. We measure from the centre left kingpin to the top of the seat in the middle. Should be between 102cm and 106cm. Sorry us South Africans Work in cms
@@philipjones4157 Mr Jones, what front track width are you running for this weekend at FK? we have been struggling with a loose rear end in the fast corners
@@hendrikvandenberg Hi Hendrik Sorry I didn't see this message. Send me a WhatsApp so I can see how I can help you. Lots of information to try diagnose your issue.
Hi again! Spoke to you as a newbie months ago and now I feel like I'm ready to move from neutral to an increase in caster. Do I need to do an alignment ? Do not have a Sniper tool. My Kingpin is a straight bolt (neutral) Thanks! Intrepid, Rok Vortex Masters
if. you just move the castor pils 180 you might be okay. but I would double check it. otherwise check out this vid on how to make your own alignment bars www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwirnNyKq8fyAhWeyjgGHVqgDKcQwqsBegQICBAB&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DseW2PGlnC5I&usg=AOvVaw3nVgB3-MMNOLdslPaxeJZa
Are the only castor adjustments maximum, neutral and minimum. Or is it also possible to turn the bottom adjustments one or two holes for some extra caster?
On otk aka tony kart you can get 0 pills to split the difference. It's just a pill with the bearing set dead in the center with no adjustment so you are not all the way forward or all the way back your in between the 2. You can run it top or bottom with the same effect you just have to rotate the arrow on the other pill 180. Technically it changes wheelbase but I usually run 0 pills on the bottom as it's quicker to change it without pulling the kingpin. Other manufactures make castor fully adjustable ie you can move the kingpin forward or backwards the full range without effecting camber.
hello, I need help, I got some new wheels and tires, the problem is that they are american bolt pattern, so they wont fit the tony kart hub, is there a sollution for this (another hub) or better sell them and get proper wheels? ( I like those wheels, the rims are bigger than the tony kart but the tire is same size)
Hey Luis, what type of kart do you have? Most kart rims are 5" diameter and their bolt patterns are the same, the exception some CRG wheels have a different internal spigot diameter. If you have a Tony Kart, they have heaps of different rims available to suit all conditions so I would recommend sticking with an OTK rim.
I second this!! Got a pre evo rotax max, and as a new guy to the track with not a lot of money to send to mechanics, it would be great to know how to properly maintain and clean the engines
We run at a fast drafting track where part is loose the other half is tight. Can we run full caster with positive camber? Or do we have to be natural to add positive camber?
Josh Navarro if it’s fast and flowing coming into the main straight, set kart for that for maximum gains. Then adjust driving to suit the slower twisty section. You can try full castor and add a little bit of pos if your kart is not responsive on corner entry.
Power Republic thanks for the help. In the morning we were full caster and before the track came but it was scrubbing out straight speed as we only qualified 7th. 🙄 so we went arrows back going into the main and he said it was so far the best set up but then this happened and he couldn’t avoid.. th-cam.com/video/iEES0sFLOp0/w-d-xo.html Your feed back is on point... we appreciate your help.. hit me up if you’re ever in Indy.
Jono Dalton a few questions, how old is your kart? Do you have to keep max castor? Top holes on the steering bell can lighten the feel of the steering wheel. However the kart is probably under steering if it feels to heavy. Otherwise if the karts fast like it is, you need to hit the gym and build up the arm strength and ignore all previous suggestions 😃
Power Republic karts 2017 and we use a really low grip tyre for racing which makes getting into and through the corner difficult. I’m tiny so I should probably hit the gym which could help take some of the lead off😃 thanks for your help
Power Republic we run maxxis HG1 endurance tyres which could easily last an 8 round season, only problem is they have little grip. I run in a team which makes their own chassis which is the GMS, it is essentially the same as otk but without eccentrics as we have caster inserts on the bottom for different angles and a thread on top which moves the camber side to side.
Great video Derek, thanks for listening to the viewers. Question on this video though, would having both eccentrics face the same direction top and bottom not be the same thing regardless if they're both facing front or back or any other combination? Secondly if say you want to increase caster but not use full caster, can you say move the top eccentric one/two holes in the full caster direction while doing the exact opposite on the bottom eccentric? This would also keep the built in camber of the chassis as well correct?
My question is I'm running a 2016/17 FA and found with MG tires (F400 that's Honda390cc) that the kart wasn't undriveable but extremely heavy on the front end. So after 7 laps you not focusing on the apex anymore but rather focusing on how you need to turn the steering wheel. We backed off the caster but even compared to my CRG Blackstar it felt heavier with no caster versus the CRG running 2 or 3 lines of caster.Do you know what the standard built in caster is on the 16/17 OTK karts as looking the FA looks identical to the Tonykart Racer and Kosmic Mercury chassis and question 2 has this changed on the OTK Karts at all?The Caster cambers washers have 1 dot so I think that's standardI also felt the angle of the steering wheel probably made it worse as I run the steering wheel in the standard position.
Hi phil, start with a brand new set of tyres and standard castor/camber (arrow forward top and bottom). i think the heaviness in steering is more than likely stuffed tyres which is super common with old MG reds. Then if you have any dramas report back. AFAIK the newer tony karts are unchanged when i measure them at work with the snipers. Birel have more in build castor and i think the CRG have a bit more too, but most chassis you can change the castor to suit your needs. hope this helps D
@@PowerRepublic Thanks D We are running the MG hards as we are more of an endurance based series. Normally we don't have issues with the front end on karts. It's trying to keep up with the rear end from either having to much grip or during the day the rear becoming tail happy. What we did find by taking the caster off was we took away the lift on the inside wheel. However the chassis was still quick but our engine lacked bottom end torque. Would you run a cut axle? We tried an OTK medium cut. Also some guys run the left carrier bearing facing outwards and the right one facing inwards which I always thought you must keep them the same. Facing out they do harden the axle right? We do find that our chassis tend to crack around the engine so I put a 0.3mm bar into the chassis with the length from the carrier mount up to where the sidepod bar is welded on. I was told this shouldn't affect the rail in terms of handling. I'm not sure if anyone has had experience with the hard MG tires but during the ladt heat 2hr race I started getting a horrible feeling through the steering wheel which felt like a terrible vibration. Checked everything like rear bearings, axle and front bearings, rosejoints and that the Stub axle was tight and bearings were ok and found no problem. Can tires cause a horrible vibration as we need to run these tires one more race event?
@@philipjones4157 make sure you don't have to much weight to the rear. Maybe scale your kart (4 bathroom scales work as a cheap DIY solution) to see the weight split front to rear. that is a common problem with the heavy 4 stroke engines on hard tyres. let me know how you go
@@philipjones4157 - maybe the tyres are out of balance causing vibration? -The extra tube will stiffen the chassis rail slightly. maybe slide one into the other side to even it up? - if your not lifting the inside wheel without the castor then you will drag the inside rear around the corners creating drag. - the bearings come standard one in and one out. just leave that for now. changing axles is not easy to do over the internet. Try the weight balance first, then try the extra tube in the other side. then we can work on other things for you Hope that helps, let me know how you go
Good afternoon sir I just wanted to know whether it’s advisable or practical to use differing degrees of Camber on the left and the right wheel, when required? Same question with caster. Thank you
just bought an 08 tony kart and steering is pulling to the right on a straight away not pulling hard but you can feel it pulling. How do I fix that..??
GreenRusher yeah you want the castor the same both sides (or as close as you can) so that it turns the same both ways with the steering. Otherwise the kart will drive like it got a bend in it.
Hi. You're doing a great job..!! My son drives a mini kart Intrepid speedy 02. Kart after reset from the team mechanic gives oversteer not only in the entry of corner but also slips in the exit...Driver does many corrections on the steering wheel.. Looses time.. No factory manual used.. Also it's ground distance is very low.. (front almost touches the ground).. We were said only for caster was reduced from 20?? to 9..Although I know that there is no standard could you give us some numbers to reset and cure this problem? 1)Camber 2)Caster 3)toe out 4)front - rear height from the ground Please keep in mind that set up will not be done with the driver on. Driver total weight with full equipment is 38,8 kg.. Thanks in advance..
geez that a hard one without seeing the kart/driver/combo in action. Maybe try the kart out some more and see if your son can adapt and overcome the situation. Then if its still a problem slowly change the front ride height to see if a slight weight shift front to rear might help. Also too, we have a video on how to scale a kart. have you checked that one our yet? maybe try that and report back your findings
isnt adding caster also very common when the track is super grippy and you have a low power kart like cadet and by adding caster you help lifting the rear and freeing the rear , which is flat ?
In my kart castor is 5 degrees and kpi is 10 degrees and i want to know that how camber works on that and how much we need to put camber in our kart? Please reply!
mostly we use the karts in the factory standard position and the adjust more or less after we drive them. that way we can customise the settings for each track/driver/conditions. sorry I don't have a better explanation for you. do you have a particular handling issue you are trying to overcome ?
Tommy Chaplin if only it was that simple. New tyres, a sticky track, a track with a lot of high speed sweeping corners.....try negative camber. Not brand new tyres, slippery and/or cold tracks, short stop start corners....then try positive camber. I like my karts, when perfect balanced, to be able run as close to neutral camber and castor as possible.
I can never work out positive or negative caster or camber, it’s all Chinese to me, I wish someone would explain it to me in simple terms. Positive Caster for more grip, Negative Caster for less grip? And Camber the same?
Hi Silvana, if it seems confusing, the best thing is to go to the race track and feel it for yourself. Start with a new set of tyres and standard camber and castor. Then adjust your front end to have max Negative camber and write down the results. After that, change to full positive camber, write down what you felt and how the kart reacted and so on and so forth.......
Power Republic thank you so much, that’s a good idea! Most people at the circuit where my son drives have no idea about Camber or Caster, but your video was very helpful.
Massive flaw is this system is the camber changes the caster, we use a different system now and you can change both completely independently. ( sniper kit )
My son drives a 60CC Praga, the right front wheel is wearing on the inner side, can you suggest some reasons for this and what I can possibly do to correct.
So happy to find a great channel which is dedicated to karting. Easy to understand and informative for beginners.
Thanks fo the positive feedback.
Best explanation I’ve heard on caster, camber and how the changes affect the kart. Don’t suppose you could do more of these? Front and rear track width, axle stiffness, ride height, torsion bars would all be amazing
Great channel!
Hi James, thanks for the positive vibes, hope you like this weeks video!!!
My wife doesn’t like that I found your channel because each Saturday I talk about getting a Tony Kart after watching your vids 😂 love the weekly vids mate, keep it up cause I know she’ll break. 😂 - Matt
Zuluwoffle Hahahaha that’s a classic. I’m right with you on that’s one!
What is caster? What does it look like on a kart? What does negative caster look like on a kart? What is camber? What does camber look like? I’m sure this is a fantastic video on how to adjust caster and camber, but it doesn’t explain what they are, or what they look like, or why the adjustments make a difference. Forward, backwards, positive, negative, up, down, jump around.
Another great/informative video, Derek! I race a 401S and would enjoy seeing a video explaining axle stiffness and when to use each. Or a video explaining the quick/essential changes recommended for when it starts raining.
Jason Leslie thanks for the positive feedback. I’ll add suggestions to the list. 👊🏿
Really good tips, I think I’ll try out some next time I’m at the track.
Matthew that’s right my friend. Practise the fundamentals on your kart and let me know how it goes for you. Thanks for the positive vibes.
Wow What a fantastic explanation. Nice video mate! Do it more ....
Thanks Antonio. I am on it!
So good bro can’t wait for next weekend 😆
Glad you are doing some research
Great! Perfect! Thank You So Much
👍
Awesome video and a great help 👍🏻😉🏴
Hi. I feel my kart steers weel, but bounces too much out the Norbert.. also I have the steer is quite heavy. I’m running 2 neg camber and 2 neg tyres out.. convergency
Hey mate, was this with brand new tyres?
@@PowerRepublic No it wasnt, but might be swithed from sides by accident.. The car bounces too much on exit corners..
@@PowerRepublic I found i had a problem with the cassis, basically one end higher than the other.. Now is fixed and the problem was gone.. Thank you very much. I want to make you a new question now. The kart performs very well almost all the track, but in one corner i have an exit in first gear (Rotax DD2) and the kart tends to much to loose the tail, i beleave it can be a throttle speed aplication problem, but maybe there si something additional in the setup i can do without affecting the performance in the rest of the circuit.. The track has some low speed tight corners so it has to be taken into account.. Im runnin front end lift to be able to run the kart very pointy.. My weight is 64 Kg.. Thanks
Hello from the US.
How would you tune for a multi surface race track? We have a mixture of new asphalt, old asphalt and concrete.
And when you say negative vs. positive camber... I've always assumed you'd always be negative (tops of tires closest to each other) vs positive (tops furthest away). I always thought the only reason to use positive camber was on oval tracks :)
g day mate, nah you can use =either on any track. but mostly use the neg when the tyres are brand new. Pos if they are worn out or the track is mega slippery
Will you guys do a review on the new 401r chassis
Sidney Robinson I think we will when they get here in January. Did you turn on your notifications so get notified when the new videos go live ?
Of course
Power Republic of course
Hello, Thank you for this awesome video (information). I would like to get more information videos about "Toe-in and Toe-out" (and effect this has on the camber and caster) and "Driving Height". You got a new fan @Holland. Greetings Jordy
Hey Jordi that's for the positive vibes. Stay tuned and I'll see what I can do.
I have a cadet 22 Praga kart with SA1 caster camber set up and trying to figure out how to adjust caster and camber??
it will be very similar. forwards and backwards with thee and of the kingpin is the castor, left and right across the kart is the camber
Hey this is Sal,
Can you please make a video about ECU (what it is and how to tweak different variables related to it)?
That would be really helpful...
Hi Sal. which engine is this related to? As far as the Rotax and IAME are concerned, they are sealed units and can't be changed from the factory.
Power Republic
It’s the Rotax Max 125cc. I was wondering if the user can manipulate variables (outputs) from the unit.
For example; running the engine rich or lean on fuel mixture... or anything similar.
HalflifeCrew hey mate. Nah on the Rotax 125 the ecu only controls the Spark. Air fuel ratios you can check the exhaust gas with a Lambda (Mychron wideband oxygen sensors are awesome) and adjust the carb jets and float level to suit after your race.
So caster can help front grip, dig the tyres into the ground. And positive camber can hep turn in? Positive camber will gove more grip and negative will release it?
to some degree yes. positive for me helps the kart turn in more (relatively) and negative reduces the entry turn, and helps the kart drive to the exit. neither is perfect for every track/tyre/ambient conditions etc etc so have a play around and see if that works for you too. hope that isn't too vague.
If i adjust with tape measure in centimeters what are the basic values for dry track KZ2 Praga chasis (camber, caster and toe)
That’s a great question. Haven’t done one with a tape measure so I can’t really say mate. But really maybe just save up and get some lasers to help
Thanks for the help, my son is doing his first club day at Oakleigh in Melbourne, most of the time he oversteer, our tyres are old and it's going to be cold and little wet, can you recommend us camber and caster, Thanks !
Hey mate, could you please make a video on full x30 rebuild, and what involves in the process?, thank you
Hi Racer's Line. That might be bit of an episode. Maybe I can break it down into a series at some stage. What was it you were most interested in?
@@PowerRepublic I'd like to see how to spot signs of wear and replacing bearings, gaskets in a bottom end rebuild. I know it is a huge job, thank you for your time.
Hello,
My steering is extremly heavy, is this maybe effected by caster? Thank you for the answer
lift the tie rods up on the steering column and see if that helps
Do you adjust camber and toe out with driver inside or kart on trolly ?
On trolly
we just do it on the trolley with no ill effects
Great video! Just bought my first kart, Intrepid with Rok 100cc tag. Shop set front end at "neutral" i assume as I don't have the castor camber adjuster with the many little holes. Just an almost flat washer. Does this sound normal to you? I haven't driven a kart in a few years. Thanks!
yep, if you are new, just get to the track and get some K's into you body. the guys at the shop would have set it up for you. the intrepid has an after market adjuster you can buy with the holes in it for castor and camber changes, but you probs won't need them for now. the standard flat ones are most likely the standard 'centre pils' without any 'eccentric'
Do you need one of those laser things in order to adjust camber/caster? Or are they more of a double check?
yeah they make it real easy, otherwise you can do it ol skool with strings and plates
How about warm conditions with new tires on concrete track? Same rules apply?
Hey Jordan, tough question. I have only ever been to 1 track that is concrete so I'm not 100% sure. Normally you have high area on concrete over bitumen. so the kart front tyres should grip well. if that is the case then some extra NEG might help the kart from the Apex to Exit, and stop the kart from bogging down at the Apex ripple strip. hard one for me to comment on. Which track are you racing at that is concrete?
Can you do a Video on how to hone an x30 engine and rebuild tips please
David Richardson Hi mate, I will do them for our top tier subscribers on patreon if your interested?
Sure thanks mate. how do I become a top tier subscriber
@@davidrichardson2263 if you click through to our Patreon page you can sign up and i'll do it as our first live Q&A if you like?
Hi again, finally adding caster for first time. Local track shop said only top side will have the caster pill( arrows pointing forward) and to leave bottom with flat washer with no adj. possible. Intrepid kart. Thoughts?
maybe send me some photos. but I think they are correct. you could buy some after market adjusters to fit to the bottom if necessary
Should the arrows on the top pills (left and right) both be facing same direction? Mine are slightly different someone says chassis may be bent.
Dominick Cassara they should be ideally. However I have seen a one hole variation across the kart without the chassis being bent. Just double check your castor angle with the steel ruler in the vertical position like we do in this video. If that’s within 1 mm and your camber is within 0.5mm and you have one hole difference, you should be sweet.
Can you explain which is the easiest way to check the chassis if it’s straight or bend ?
th-cam.com/video/vRS4mir167M/w-d-xo.html
New to the kartingworld, or my son. I have the pleasure of try to learn the mechanical side. For the junior kosmic kart neutral position caster is both arrows to the front. But is it the same to have both arrows towards back ? or should I change them to neutral, both arrows pointing forward? When we bougth the used kart tyres was almost worn out. Still son was driving pretty good.Now we have new tyres...first 2 times to the track everything fine, but third time to the track the kart just slided in every corner and spinning for some reason... I´m still going to check wheel alignement ( no laser ) but can it also be that as you say in the video here that with new tyres and super grip you use negative camber? First I will check the alignement and go to track and see if helps.
I have a question. Turning right the kart couldn't handle any better. Turning Left the kart from the center of the apex out want's to swap ends. I'm running 1mill out on toe and -2mills on the camber with positive caster, ackerman is equal on the sweep.
Hi Denny,
-Check first that the ride height is the exact same on the front stab axles.
- Next check that you have the exact same Castor set up i.e both arrows forward on a Tony Kart, not one forward and one backwards.
- Next up if all those things are good, check for a bent kart or cracked chassis near the rear bearing hangers.
- If you remove the side pods, nose cone and wheels, you can lay an axle across the kingpins at the front of the kart and eyeball the straightness against the back axle in the kart (this is surprisingly accurate way to gauge if a kart has a twist in it)
Once you have checked all those things and they are perfect, buy 4 reasonably priced bathroom scales and place one under each of your wheels on a flat surface. Sit in the kart with your gear on and with an assistant, measure all the corner weights and compare.
Then write me back and tell me what was wrong or if you need further instructions.
Derek
@@PowerRepublic Thanks.
Does camber affects opposite in race cars? Because as far as I know adding negative camber to the front gives more front grip. But in go karts as you said positive camber will give more grip.
well I'm not 100% sure in the car game. neg will delay the steering a fraction on the way into the corner. Pos camber makes the kart a little more reactive. these are generalisations, use a little for practise and document the results and you will be on your way to successful front end camber set ups
Hello, i just bougth a cart, and am gonna go racing next season, and am not quite sure what a track with lots of corners, and not many stragiths. what would you wanna change for that type of circuit? thanks for the help :)
Kasper Hansen did you buy a senior Max or a DD2? And do you want to what gearing for your track or set up choices?
It’s a Rotax max senior, and the setup would be Great, ‘cause the guys at my track knows a good gearing so just the setup would be good 😊
Setup I'm sure would be based on how the kart feels around the track first.
I'm sure D can advise on a standard setup and from there you would have to adjust according to how the kart is reacting.
The amount of mileage on the tires will make a difference to the setup.
Also you should measure the seat distance as that will also allow the guys to understand the balance of the kart a little more.
We measure from the centre left kingpin to the top of the seat in the middle.
Should be between 102cm and 106cm.
Sorry us South Africans Work in cms
@@philipjones4157 Mr Jones, what front track width are you running for this weekend at FK? we have been struggling with a loose rear end in the fast corners
@@hendrikvandenberg
Hi Hendrik
Sorry I didn't see this message.
Send me a WhatsApp so I can see how I can help you.
Lots of information to try diagnose your issue.
Hi again! Spoke to you as a newbie months ago and now I feel like I'm ready to move from neutral to an increase in caster. Do I need to do an alignment ? Do not have a Sniper tool. My Kingpin is a straight bolt (neutral) Thanks!
Intrepid, Rok Vortex Masters
if. you just move the castor pils 180 you might be okay. but I would double check it. otherwise check out this vid on how to make your own alignment bars
www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwirnNyKq8fyAhWeyjgGHVqgDKcQwqsBegQICBAB&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DseW2PGlnC5I&usg=AOvVaw3nVgB3-MMNOLdslPaxeJZa
We are really cutting out the inside left f tyre compared to the right. We run vagas in 4ss.with the setting at neutral
try adding more castor and positive camber to counter it. low grip tyres understeer is pretty common. have you done a weight split front to rear yet?
Are the only castor adjustments maximum, neutral and minimum. Or is it also possible to turn the bottom adjustments one or two holes for some extra caster?
correct, the one or two holes is mostly for the camber changes
@@PowerRepublic is it the same for birel chassis? They have the same system therefore I think they have the same amount of change
On otk aka tony kart you can get 0 pills to split the difference. It's just a pill with the bearing set dead in the center with no adjustment so you are not all the way forward or all the way back your in between the 2. You can run it top or bottom with the same effect you just have to rotate the arrow on the other pill 180. Technically it changes wheelbase but I usually run 0 pills on the bottom as it's quicker to change it without pulling the kingpin. Other manufactures make castor fully adjustable ie you can move the kingpin forward or backwards the full range without effecting camber.
hello, I need help, I got some new wheels and tires, the problem is that they are american bolt pattern, so they wont fit the tony kart hub, is there a sollution for this (another hub) or better sell them and get proper wheels? ( I like those wheels, the rims are bigger than the tony kart but the tire is same size)
Hey Luis, what type of kart do you have? Most kart rims are 5" diameter and their bolt patterns are the same, the exception some CRG wheels have a different internal spigot diameter. If you have a Tony Kart, they have heaps of different rims available to suit all conditions so I would recommend sticking with an OTK rim.
can u make a video on how to open and clean an rotax max engine
pls
Martin Kelly I reckon we could do something for ya there Martin. Anything in particular you need to know?
@@PowerRepublic i want to know how to clean a rotax max engine
Okay @@martinkelly7465 I will add it to the list of videos to make so stay tuned/notified for the new videos!
@@PowerRepublic thank you so much
I second this!! Got a pre evo rotax max, and as a new guy to the track with not a lot of money to send to mechanics, it would be great to know how to properly maintain and clean the engines
We run at a fast drafting track where part is loose the other half is tight. Can we run full caster with positive camber? Or do we have to be natural to add positive camber?
I’m having trouble with the 2019 as it so loose compared to the 2017 that has way too much grip.. help!! We have SKUSA in 11 hrs ha!
Josh Navarro I have hell Neg dialed into the front of mine (6mm per side) at the moment. Otherwise try no castor (Top arrow Facing backwards)
Josh Navarro if it’s fast and flowing coming into the main straight, set kart for that for maximum gains. Then adjust driving to suit the slower twisty section. You can try full castor and add a little bit of pos if your kart is not responsive on corner entry.
Power Republic thanks for the help. In the morning we were full caster and before the track came but it was scrubbing out straight speed as we only qualified 7th. 🙄 so we went arrows back going into the main and he said it was so far the best set up but then this happened and he couldn’t avoid.. th-cam.com/video/iEES0sFLOp0/w-d-xo.html Your feed back is on point... we appreciate your help.. hit me up if you’re ever in Indy.
@@joshnavarro3213 that's awesome, and your very welcome.
Any tips on making the steering lighter for a guy with 20kg of added weight on the kart while keeping a fairly high caster?
Jono Dalton a few questions, how old is your kart? Do you have to keep max castor? Top holes on the steering bell can lighten the feel of the steering wheel. However the kart is probably under steering if it feels to heavy. Otherwise if the karts fast like it is, you need to hit the gym and build up the arm strength and ignore all previous suggestions 😃
Power Republic karts 2017 and we use a really low grip tyre for racing which makes getting into and through the corner difficult. I’m tiny so I should probably hit the gym which could help take some of the lead off😃 thanks for your help
Which Tyre and model of kart do you have Jono?
Power Republic we run maxxis HG1 endurance tyres which could easily last an 8 round season, only problem is they have little grip. I run in a team which makes their own chassis which is the GMS, it is essentially the same as otk but without eccentrics as we have caster inserts on the bottom for different angles and a thread on top which moves the camber side to side.
Great video Derek, thanks for listening to the viewers. Question on this video though, would having both eccentrics face the same direction top and bottom not be the same thing regardless if they're both facing front or back or any other combination? Secondly if say you want to increase caster but not use full caster, can you say move the top eccentric one/two holes in the full caster direction while doing the exact opposite on the bottom eccentric? This would also keep the built in camber of the chassis as well correct?
My question is I'm running a 2016/17 FA and found with MG tires (F400 that's Honda390cc) that the kart wasn't undriveable but extremely heavy on the front end. So after 7 laps you not focusing on the apex anymore but rather focusing on how you need to turn the steering wheel. We backed off the caster but even compared to my CRG Blackstar it felt heavier with no caster versus the CRG running 2 or 3 lines of caster.Do you know what the standard built in caster is on the 16/17 OTK karts as looking the FA looks identical to the Tonykart Racer and Kosmic Mercury chassis and question 2 has this changed on the OTK Karts at all?The Caster cambers washers have 1 dot so I think that's standardI also felt the angle of the steering wheel probably made it worse as I run the steering wheel in the standard position.
Hi phil, start with a brand new set of tyres and standard castor/camber (arrow forward top and bottom). i think the heaviness in steering is more than likely stuffed tyres which is super common with old MG reds. Then if you have any dramas report back.
AFAIK the newer tony karts are unchanged when i measure them at work with the snipers. Birel have more in build castor and i think the CRG have a bit more too, but most chassis you can change the castor to suit your needs.
hope this helps
D
@@PowerRepublic
Thanks D
We are running the MG hards as we are more of an endurance based series.
Normally we don't have issues with the front end on karts. It's trying to keep up with the rear end from either having to much grip or during the day the rear becoming tail happy.
What we did find by taking the caster off was we took away the lift on the inside wheel. However the chassis was still quick but our engine lacked bottom end torque.
Would you run a cut axle?
We tried an OTK medium cut.
Also some guys run the left carrier bearing facing outwards and the right one facing inwards which I always thought you must keep them the same. Facing out they do harden the axle right?
We do find that our chassis tend to crack around the engine so I put a 0.3mm bar into the chassis with the length from the carrier mount up to where the sidepod bar is welded on.
I was told this shouldn't affect the rail in terms of handling.
I'm not sure if anyone has had experience with the hard MG tires but during the ladt heat 2hr race I started getting a horrible feeling through the steering wheel which felt like a terrible vibration.
Checked everything like rear bearings, axle and front bearings, rosejoints and that the Stub axle was tight and bearings were ok and found no problem.
Can tires cause a horrible vibration as we need to run these tires one more race event?
@@philipjones4157 make sure you don't have to much weight to the rear. Maybe scale your kart (4 bathroom scales work as a cheap DIY solution) to see the weight split front to rear. that is a common problem with the heavy 4 stroke engines on hard tyres. let me know how you go
@@philipjones4157
- maybe the tyres are out of balance causing vibration?
-The extra tube will stiffen the chassis rail slightly. maybe slide one into the other side to even it up?
- if your not lifting the inside wheel without the castor then you will drag the inside rear around the corners creating drag.
- the bearings come standard one in and one out. just leave that for now. changing axles is not easy to do over the internet. Try the weight balance first, then try the extra tube in the other side. then we can work on other things for you
Hope that helps, let me know how you go
Good afternoon sir I just wanted to know whether it’s advisable or practical to use differing degrees of Camber on the left and the right wheel, when required? Same question with caster.
Thank you
I think this may cause problems when you are breaking, but you can try it.
just bought an 08 tony kart and steering is pulling to the right on a straight away not pulling hard but you can feel it pulling. How do I fix that..??
sounds like something is bent. start with the kind pins and castor adjustment, then check out the chassis for a twist
@@PowerRepublic Thank you
Am I right in thinking that, given the way the adjuster mechanism works, adjusting the camber also changes the caster?
Hi, does the caster have to be the same on both sides?
GreenRusher yeah you want the castor the same both sides (or as close as you can) so that it turns the same both ways with the steering. Otherwise the kart will drive like it got a bend in it.
@@PowerRepublic Ok, thank you very much😃
Hi. You're doing a great job..!! My son drives a mini kart Intrepid speedy 02. Kart after reset from the team mechanic gives oversteer not only in the entry of corner but also slips in the exit...Driver does many corrections on the steering wheel.. Looses time.. No factory manual used.. Also it's ground distance is very low.. (front almost touches the ground)..
We were said only for caster was reduced from 20?? to 9..Although I know that there is no standard could you give us some numbers to reset and cure this problem?
1)Camber
2)Caster
3)toe out
4)front - rear height from the ground
Please keep in mind that set up will not be done with the driver on. Driver total weight with full equipment is 38,8 kg..
Thanks in advance..
Set up will be done without the driver on the kart.. Sorry about the mistake..
geez that a hard one without seeing the kart/driver/combo in action. Maybe try the kart out some more and see if your son can adapt and overcome the situation. Then if its still a problem slowly change the front ride height to see if a slight weight shift front to rear might help. Also too, we have a video on how to scale a kart. have you checked that one our yet? maybe try that and report back your findings
@@PowerRepublic Thanks so much.. I will proceed and get back to you with findings. Again thanks so much..!!!
isnt adding caster also very common when the track is super grippy and you have a low power kart like cadet and by adding caster you help lifting the rear and freeing the rear , which is flat ?
You can, but works for ones the opposite for others. best bet, try it out for yourself and if it works, drive faster. always drive faster
We Are making a new kart .
What should be our kpi to keep scrub radius best .
not sure on that one, I have never made a kart from scratch. Maybe someone can answer this one for us
In my kart castor is 5 degrees and kpi is 10 degrees and i want to know that how camber works on that and how much we need to put camber in our kart?
Please reply!
mostly we use the karts in the factory standard position and the adjust more or less after we drive them. that way we can customise the settings for each track/driver/conditions. sorry I don't have a better explanation for you. do you have a particular handling issue you are trying to overcome ?
Awesome knowledge. Going to get myself a sniper....any recommendation?
Hi, the snipers are awesome, that's what I use and recommend.
So, if we have poor grip, go positive. If we have good grip go negative?
Tommy Chaplin if only it was that simple. New tyres, a sticky track, a track with a lot of high speed sweeping corners.....try negative camber.
Not brand new tyres, slippery and/or cold tracks, short stop start corners....then try positive camber.
I like my karts, when perfect balanced, to be able run as close to neutral camber and castor as possible.
I can never work out positive or negative caster or camber, it’s all Chinese to me, I wish someone would explain it to me in simple terms.
Positive Caster for more grip, Negative Caster for less grip?
And Camber the same?
Hi Silvana, if it seems confusing, the best thing is to go to the race track and feel it for yourself. Start with a new set of tyres and standard camber and castor. Then adjust your front end to have max Negative camber and write down the results. After that, change to full positive camber, write down what you felt and how the kart reacted and so on and so forth.......
Power Republic thank you so much, that’s a good idea! Most people at the circuit where my son drives have no idea about Camber or Caster, but your video was very helpful.
Massive flaw is this system is the camber changes the caster, we use a different system now and you can change both completely independently. ( sniper kit )
👍
My son drives a 60CC Praga, the right front wheel is wearing on the inner side, can you suggest some reasons for this and what I can possibly do to correct.
its common to see the inside edge of most kart tyres wear. maybe use more positive camber after the tyres are worn in.
@@PowerRepublic Thank you this was very helpful
@@mahendrabethune7612 👍
где и как можно купить эту раму???
Вы должны быть в состоянии получить его в большинстве магазинов картинга
try Mondo kart in Europe for Tony Kart or Strawberry Racing in England www.strawberryracing.co.uk
En español?
one day.....are you any good at translations??
!!!
!
I'm the son of your cousin Rena and if you believe me we can go gokarting
Good luck with that, I'm sure it would make your Grand Dad happy ;)
Not the best video explaining this honestly.