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- เผยแพร่เมื่อ 24 ก.ย. 2021
- Mod 2 cam versus stock cam / Hemi Predator 212 / Coleman cc100x
Did top speed and zero to thirty runs with a mod 2 cam installed in the Hemi Predator 212 on the Coleman cc100x minibike and then did the same with the stock cam to compare the difference.
Coleman CC100X Playlist - • Coleman cc100x minibik...
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Parts used -
Mod 2 cam - www.arcracing....
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Black66 I can't stop watching ur channel and I can't stop buying minibikes I now have 4 and I may need some kind of minibike anonymous group support 🤣🤣
These things are just plain fun wrenching building rebuilding riding its all fun lol
Thanks!! Ya, I think we might need some kind of help! LOL😂
@@Black66 I can't wait tell winter mine break before I get a 3rd one together
Wrenching on them is the best part…i have 3 and hardly ride them 😂 i just like tearing them apart, and making them super fast….
@@ziggybammurphy1645 That's the truth!
It’s great that you always show the parts going in or on the motor in your videos. This was a nice comparison! 👍
Thanks! 👍🏼
Lol, I knew it before you showed it. Yes! The "wave" is longer on the mod2, definitely all duration. It would feed less air/fuel over the combustion process leading to a slower build in torque while allowing the motor to reach its optimal horsepower over a longer run. When it reaches enough rpm the longer duration continues the feed/flow more than the ramping on the stock cam. The ramping forces the fuel/air, builds rpm quicker but can't continue the feed since the valves are opening and shutting to fast to do anything constructive. Good stuff boys, these are really great videos.
This channel helps a lot with my bikes
Im happy that it helps
What's going on sir I watch all your videos I guess if you were to put the juggernaut on the high performance cam it all around the mini bike will be faster than the stock cam in the predator engine keep up the good work your channel shows me a lot of things that I should do to my mini bike 😁
Thank you !
Sounds right. Anytime you change your RPM torque/power range, you'll probably need lower gears to equal out the 0-30 mph. Maybe put that little bigger sprocket on the back. I think you said it's a 52 tooth and you have a 40 now? . I'd like to see the stage 2 cam with a little lower gears. Anyway it's just a suggestion. Really enjoying your videos. In my younger days I built 1/4, 1/7 , and circle track motors. BTW very informative. Thanks, keep it up
From my own experience messing around with the mod2 cam I've noticed it likes a nice bump in compression if you mill your head or use a 14cc head that cam comes alive
Your right . I used it with a GX 160 head in another video . It runs really good with that head .
Also put a muffler on in , this will give the motor more back pressure it will run better , you add milled head and u have a hot rod
@@stevenshell7815 I used a GX 160 head in another video . It was a rocket ship!
@@stevenshell7815 if you have better performance with a muffler you have tuning issues. It could be a number of things. But a muffler just slows the evacuation of the combustion chamber. In other words you may have old mixture still in the chamber and there's no place for the fresh air and fuel.
Would changing the head gasket to a .010” gasket up the compression enough??
Freaking awesome
Turn it on its side so the crank is straight up and pull the side cover no need to drain the oil
No mention of the tooth count on the drive/driven sprocket, respectively... but the stock cam is obviously meant to make good low-end torque.
The bike had a 5 to 1 ratio in this video. 15 on the clutch and 75 rear sprocket
@@Black66 Hmmm... "fair" for top-end, but still pretty deep. But then: What's the "lowest" one can go with it?
@@pancudowny Depends on the weight of the rider and tire height and Stuff like that. We have run a much higher gear with the Mod 2 and have gotten over 70 MPH on the kart. Here is the video. th-cam.com/video/PMOjyg08NII/w-d-xo.html
Suppose to change the valve springs with the mod 2 cam as well
This dude has to build a trailer you never see behind his mini bikes to tote his massive steel nuts!
LOL speaking of steel nuts check out this video...th-cam.com/video/zbn2shqOuaQ/w-d-xo.html
I just put the mod2 in my 212. It’s going slower now. 26# springs. Vm22. 135main jet. I was doing 43mph. Now I’m at 35.7mph. I’m going to drop my main jet down and see but any help would be appreciated.
Never mind I figured it out. The dino cam came with a card that said for the 212 recommended advance. Timing was 30° BDTC. I went back and reset the timing to around 10° BDTC and drop my main jet down to a 25 and I’m running 45mph now.
What type of exhaust do you have on that? I really like how it sounds
That mod 2 Cam is made for go carts they make the power mid range and top end. in a go kart races around the track it never stops it comes out of a corner they nail it and they’re gone that’s why they call it the cheetah cam. I was disappointed when I got mine on the low end but it’s OK im looking at a Superman 265 , So anyway like I said that’s a Go kart oval track cam but everybody buys them I don’t know why
Ya, all that duration doesn't help the low end. They are inexpensive and fun to try different combos on. I like using ratio rockers with them.
I think I’ll save my money n buy a blk momba cam or .308 idk yet but ty for posting before I bought the mod 2
Iv got a mod 2 cam in a non hemi with 1.3 ratio rockers gives about .300 lift with duration so makes some awesome low end all the way up to 7000 rpms
I like the mod 2 cam. I have one that really flies with a small combustion chamber head.
Did you have the stock valve springs in when you were using the mod2 cam suppose to upgrade them to 18 pound valve springs
I love your videos very informative i was wondering what is your favorite cam for a hemi preadator 212
For a drop-in cam and for the inexpensive cost I like the Hot 265 or the Superman series 265 from Dover Power.
I was actually thinking about the fire 265 cam
You can hear the Hot 265 in all the recent Doodlebug videos on the channel.
I have watched all of them. Lol. I'm trying to figure out what cam to get
Did you have to do any clearances for the superman 265 cam
I thought the stock cam would make better bottom end, & by Quite a Bit. Wow..
I was going to get an upgraded cam, but I've got my predator on a large go kart with roll cage for riding trails.
Think I'll keep the stock cam, Better for trails & low end Power...
Ya, the Mod 2 is a good cam but that extra duration puts the power band up in the higher RPM range.
@@Black66 Good to hear from you.
Just subbed/discovered you recently
its crazy how the stock is quicker in the getty up
ya, it is!
Are you doing multiple runs per cam and getting and average top speed? or are you just going off of solitary run. Also, what MPH app do you use? Most of the ones I try have an average of 1-2 MPH variable making exact top speed hard to calculate. I figured an average per cam would give a more of an accurate comparison
I actually use three different apps or devices. I use the GPS on the camera . I also use an app on my phone called digHUD and then finally I use the Dragy performance meter on each run. They say the Dragy device is within a couple hundredths of a second of an actual drag strip timing system . Sometimes I do have to average the three together when they are off from each other. A lot of the time I will do multiple runs but don't put it in the video. I figure it might get boring and drawn out.
Is the Mod2 a "cheater cam" for kart racing classes with no duration check? Us recreational folks have to be on the lookout for "cheater" parts that are only good for modest gains, vs true performance parts. I'd like to see you do this test with a 265 lift cam.
Ya, it's a cheater cam. Video coming soon on the 265
Whats a cheater cam please?
@@joegim It is technically within the rules for some kart racing classes. Cams have two measurements which determine how long(duration) and how far (lift) they open the valves. A mod 2 has stock lift but long duration to skirt the rules that only limit lift. A cam designed for performance with no regard to rules will have increased lift and duration.
is it ok to run the clutch in this direction or is it no the proper way its how my bikes set up but people say its ghetto
What did you get the chain guard from
I have a video coming out on it . It’s the best chain guard in the world . 3D Motorsport chain guard .
Hello can you please review the Coleman ut400 utv at tractor supply???
Question where does one buy or find best chain guard in the world I need one fir my azusa and baja
The best chain guard in the world is on the 3D website. Here is the link. 3dmotorsport.net/collections/manual-clutches/products/3dme-manual-clutch-3-4b-12t-35
Do u like clutches or torque converters better? I like TC’s just because i feel like the bike has much more on takeoff and just is more powerful….my buddy has a clutch, and mine will take him off the line and on hills, but on a straightaway, he smokes me
I hear ya. For me i like clutches just because I'm light weight and I don't need a lot of power for the bike to take off. But I understand why some people would like torque converters better. They do make the bike quick!
Can I install a mod 2 cam without putting in a billet piston rod it's for a 224cc predator I'll have a stage 1 kit on it
Video coming on this exact topic Wednesday.
You can install a Mod 2, but if you use good valve springs with the Mod 2, the engine will have RPM potential beyond what the stock rod is capable of handling.
So be careful with the throttle until you get the billet rod.
Am I ok to run the mod 2 cam with just 18lb valve springs and billet flywheel, just no billet rod?
i know this is old but for anyone looking at this... you should have/ get a billet rod and flywheel if you want to rip at high rpm. If the engine has no governor( i assume it doesn't ) it could break and damage your whole engine. It's worth getting the rod and flywheel. the flywheel doesn't have to be billet if it is rated for high rpm like some pvl flywheel.
What lb valve springs and is piston and rods stock?
Where’d you get the chain guard dude!!?
Here is the video for the best chain guard in the world
th-cam.com/video/76ppl4ZmbQQ/w-d-xo.html
Are you using a speedometer app on phone ? If so can you possibly share?
No, I'm using a Dragy performance meter for the zero to thirty times. It is almost as accurate as a racetrack timing system.
Mine just got the hot cam, heavier valve springs, billet flywheel and rod upgrade. Do you find they need a certain number of hours to break in after those upgrades to seat properly?
When I add those parts to an engine that is already broken in with the rings seated, I make sure it sounds good after installing the parts, run it for a little bit then let it fly.
@@Black66 awesome thank you sir! :)
you should buy a Coleman ct100u
hope you put oil back in LOL!
No oil. Oil is way overrated!
Where did you get the chain guard?
3D motorsport
The mod 2 is a go kart cheater cam. It’s really meant to work with a stock or stock appearing carb. I think it’s a better out of the corner piece on a go kart than a drag race cam because of the low lift. Have one in a 212 with flat top and billet rod/flywheel and 1.3 rocker arms and it works good but the .265 cams are faster
Check out the 224 playlist. I use the MOD 2 with ratio rockers on different combos. th-cam.com/video/0PB16_EYCiQ/w-d-xo.html
@@Black66 I just put together a 224. With a D-slide 24mm Chikuni it’s a beast!
@@Black66 Have you directly compared it with anything else? I like the little grind myself, seemed to flatten out the power band but it was the first cam I got when I started playing with these things and I think it’s my only Predator non Hemi specific cam in the pile
@@peterchristlieb Yes, here is a video where I compared it to a 265. I also have one coming out where I compare it with ratio rockers. I like the ratio rockers with the Mod 2/3 cams. It wakes them up. th-cam.com/video/DXxGFCVlcCQ/w-d-xo.html
Did you have to clearance the mod 2?
No, it’s a drop in
I did have a Hemi I had to take a little material off the crank, but it was very little. I guess every engine is a little different.
@@Black66 can you remember on which area you had to remove material? Is it too long for the side cover to fit ?
Test the Box stock project Bsp-4 cam vs. Stock, it’s a $24 cam.
Who sells it?
I would like to do it.
@@paultibbs100 NR Racing
how far you running for top speed
In most of the videos, it's less than a quarter of a mile.
@@Black66 ok thanks love you videos by the way very informative
@@joemontgomery9420 Thank you and thanks for watching the videos.
It's me again, why replace a Coleman engine with a predator ? thanks for the reply.
The predator has quite a bit more power than the Coleman 3 horse.
@@Black66 I asking more about the 196 vs 212
You ever gonna run that 3D? If not I would love to take it off your hands.
Ya, I am gonna use it sooner or later . I had it on the kart at one time . It was really fun . Don’t they still sell them on the web site ?
@@Black66 another company was gearing up to make them, and I guess it all fell apart. Sucks
@@tashatorrid I ordered some parts off the 3D web site a few months back .
They are showing the clutch is available on the web site now .
@@Black66 oh! Got a link?
@@tashatorrid 3dmotorsport.net/collections/manual-clutches/products/3dme-manual-clutch-3-4b-12t-35
advance your timing and try the mod 2
Check out the cc100X playlist and other playlist on the channel. Tried multiple cams and combinations on this bike. Here is the link th-cam.com/video/tJeup9bo-wo/w-d-xo.html