What is a STROKER motor...?
ฝัง
- เผยแพร่เมื่อ 5 ก.ย. 2024
- Easily the most asked question I have had since starting on youtube!
What is a stroker motor?
So in this video l`ll try and answer it...
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IF youre in the market for a crap T shirt why not give ours a go..?
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yo this man was like anything
an astronaut, a firefigher, a doctor etc...
and now this
a mechanic!!!!
bruh 🤣
when he said " whut es a Stro -er mo -er" i literally shit myself laughing
Hope you cleaned it up afterwards
It's like watching a Geordie edition of Engineering Explained - Which is a good thing.
🤣🤣
Best video I've seen about the concept of a stroker! Clearly explained, yet still a brief video. Awesome!
Why thankyou sir! I git asked a lot of times before I made this 😁
Honestly it answered all of my questions about a stroker motor
Nice one, glad it helped 🤘
Very interesting and awesome explanation for the people who don't understand what stroker means, always recommend decimal Tenths for all your 1.8t needs 🙏
Cheers Roy 👍👍
Your video totally simplified the stroker motor mystery to me. I had no idea what a stroker motor was till you explained it. I'm just a bolt on Bob mechanic but after watching your video I feel like going into my garage and ripping the engine head and oil pan off my Toyota Tercel and getting my stroke on.. Thank you!👍
You're very welcome dude, glad it helped 👍👍
Hell yeah stroke it buddy 😂😂😅
Well put. Straight to the point and clear
Very useful - thank you
Longer throwing crank, which gives more depth and more height
So why doesn't the piston crash into the valves or head?
Shorter pistons (which also increase the capacity on the down stroke)
👍
Yes the stroker pistons have an offset pin height which keeps them below deck height. 👌👍
Amazing, another big question answered for a novice … 👍👍👍
thanks for the explanation! Am I right in saying you said just by changing the pistons only you could increase the literage by 0.1L?
Yes if you bore an 1.8t from 81 to 82.5mm then you will achieve a 1.9l
Excellent, right to the point with no bs.
That's it 👌
Bang on simple explanation with the theory and the practical side, well done
Thanks very much. 👍
I see you're a man of culture as soon as I saw that cossie rocker cover back there 😂
Ooh yeah there's cossie in me blood. More on that coming 😉
I need to watch this. I have a stock 2016 Genesis Coupe 3.8. Wondering if the Brian Crower stroker kit is worth the money in the future. My goal is 500whp as a daily. So the options are a built 2.0 engine, or have the car LS swapped. If the stroker is worth it, I may keep the 3.8 engine. Mostly because it sounds like a GT-R with good exhausts.
Bet it sounds great!!
Stroking a motor is definately worth it, but only if the goal is big power. Time and money wasted if the same output power goal can be achieved without doing it
Thanks for the information I always wanted to know about stroker engine
Cant believe I missed this one mate. Couldnt wait for new vids so thought ide watch back.
Doing a tdi crank for a 2.1 sounds really fun.
It's a bit more work though mate, oil squirter clearance is more of an issue. Plus an even longer stroke affects the angle of the rods in the block so the bottom of the cylinders need clearances too other wise the rods hit the block. The 2.0 stroker bar the cylinder boring is just about bolt in no issues, as long as you get away with oil squirter clearance... but you'll have to wait for the next installment to see that...😂
Imperial equation is .7854 X number of cylinders (bore squared)(stroke)=cubic inch displacement.
Metric equation is .0007854 X number of cylinders (bore squared)(stroke) = cubic centimeters of displacement.
.7854 X 4 X 3.78 X 3.78 X 3.125 = 140.28 cubic inches
.0007854 X 3 X 78 X 78 X 83 = 1189.82 cubic centimeters
Extra credit to anyone whom can tell me which two engines I referenced for my examples.
Thanks for the explanation which, unless i'm very much mistaken, just might contain a lesson in love for all the young gentlemen out there.
Amazing video! How does this effect reliability
At my power levels the 83mm bore shouldn't make a difference, and the stroke is fone also. If I really pushed the cylinder pressures then with wear there could be a cylinder wall weakness which could lead to failure. I'm not concerned by it though. FULL SEND!
Please explain how people take their e30 bmw 325i to a 2.9 stroker
Hey, just wanted to say thanks for the info. Saw the term used on a US bike video where they were using 'stroker' car motors in BossHoss custom bikes. I now know what it means 👍🏻. All the best
Hey pal, cool name. 😎 And cheers 👍👍
A TDI cranked stroker.... Wow I'd like to see that
Yeah man they're out there 👍
Very interesting, can you replace the crank, the pistons, , keeping the same bore but only increasing stroke,eliminating the need for machining, if so to what effect.
I don't think any manufacturer sells std size stroker pistons. Simply because if you're buying new pistons, then you may as well go stroker 82.5 or 83mm as the cist is generally the same. The only difference is the machining which is small in comparison.
Yep, hands down the best vid I've seen on this, kinda figured that's what it meant😁
Cheers dude 😁
How the heck can a motor's strock (length) be increased without using a taller crankcase..? Or adding some kinda spacer..? I just do not get it. I get that there's room to increase the bore. But if you change the length of the crank (eccentricity?) won't it run into the head or valves at TDC..? I just don't get where the adjustment is coming from. Can the skirt be shorter? (a question I've always asked I guess in another context). I'd've thought a taller crankcase was needed.
The wrist pin location is offset in stroker pistons to prevent the piston crown protruding from the top of the bore
Did you even watch the video? He said explains it in there
Nick I'm going to be picking your brain for months now. Cracking insight mate. 👍🏻
Great video. But what about destrokers? I only know a few engines that people do these to. Is there any benefit?
Hmm... never heard of anyone destroking an engine. I'm sure it's possible to enable a few more rpms. Can't see how it would benefit in a production engine...
Thank you fir the explanation. Could you fit the crank and keep the pistons and bore diameter standard or would the pistons be too close to the valves when running hence different pistons
Definately different pistons required. Depending on what engine/piston combo used - pistons could be machined. Buy for 1.8ts its new pistons time
Love the Board of Knowledge bud! I get asked loads but from now on I'll just share this video! Glad you're in the 2.0+ club bud, I often wonder how Prawn manages to spool his turbo with that tiny 1.9...must be hard work.
Being Prawn adds 50bhp mate. Scene points an all that...🤣. Cheers tho, I struggle to explain sometimes, draw a pretty picture and all of a sudden I'm a teacher 🤔
@@DecimalTenths I heard Prawn's G25 hits full boost at idle, the DSPI helps to reduce IAT's
@@DecimalTenths Direct Scene Point Injection (50/50 Like / Hashtag mix)
@@SpeedingTube 🤣🤣🤣
Very well explained. Thank you.
😁👍
what big end bering (size, spec) should be used for this setup. ? thanks
The crank is dimensionally the same as the 1.8t so use stock bearings. I prefer Kings racing or ACL.
Bearings need to be used that will match the crank whether it is standard or ground undersize
You lost me after you said R x L I been out of school for 24 years now and forgot a lot of it. But motors and turbo I will never forget👍😁. Great video
Cheers dude 👍
@@DecimalTenths I actually purchased a scat 347 stroker rotating assembly for my 5.0 this is going to be my first Stroker motor I am so excited I have always wanted to builded and own a Stroker/ turboed Mustang growing up and now I am 41 and finally able to make it happen.
Thanks for such simple exlpaning yet deep to make the viewer understand thanks alot mate👍🏼.
Sound! Glad it helped pal
Really informative, cheers dude peace ✌️
Cheers 👌👍👍
Thank you for explaining. 👌🏽👍🏽
Super! I long for the next video...
Too bad you leaving us ... will be a lot more expensive to buy from you after 2020. Sincerely from Sweden
Well we may be leaving, but I'll be here for sure...🤣. Cheers
Nice to hear ... well, after you have finished their last stroker video... will you then list all the parts that you use to build the 2.0 Engine.
@@christerlarsson5232 I will indeed mate! Good idea 👍
No, I'm the one to thank you. i am 54 years old and started my first car build when i was 52 ... hope to be done in 2 years time...
where after it is clear i want to start and rebuild an AGU engine and this video will be a good first choice to build after...
I already have an extra K04 good for 320-350 horses from Taiwan in my garage ... so a 2.0 liter stroker build would probably be the most suitable first choice to build.
Sincerely
Christer
(you can never get old to learn something new)
@@christerlarsson5232 Awesome mate age is just a number 👍. I'm sure the next few vids will help you out.
That tdi crank sounds a an awesome build too. Theres no replacement for displacement is what they say....
is it real to make a 2.8 from 2.0 im talking about straight six
Do I have to bore my 1.8T 06A out to 83mm to run stroker crank and pistons?
It’s currently at 81 mm and I just ordered 82 mm JE pistons, and I hope I didn’t make a mistake by not going with 83 mm for when I do the stroker crank later on down the road.
You can get 82.5 and 83mm stroker pistons. Doing them stock size is pointless considering the whole point of the stroker is to increase capacity.
@@DecimalTenths Thanks. I guess I’ll just go with a bore for my new 82mm pistons for now. Save the fun strokes for future folks.
Great video geeza.. Wondering if you could do another video (not sure if you have done) maybe about the advantages to stroking like hp gains and the risks if there are any, also compression ratios?
I can certainly comment on it when I assemble as theres some points to consider such as clearances to oil squirters etc. Be doing that very soon!
Cheers mate,
what about destroking a motor? what advantages do you get with that?
You can make the engine more over square and possibly make it revvier which can lead to more power at the loss of torque generally. Not a common technique really
@Decimal Tenths that makes sense but id rather have torque lol
Looking forward to seeing this come together mate!
So am I mate, been a long time coming considering I've had some of the bits for years...😳
so if the strokers pulling the piston further down, and then further up to increase the stroke, does that mean that the piston has to be made thinner as not to bang into the head?
The wrist pin is offset, more towards the crown in stroker pistons so that this doesn't happen.
Thank you!!!
Strong maths there man 😁👍
Okay so with all stroker motors you typically cannot rev as high. What rpm do you think you will be revving to and how would this compare to a non stroker 1.8T build? It's worth it to get the turbo spooled down low but you then can't carry the top end out as far iirc. For instance: 4G63 2.3L strokers can only rev to like 7500 safely (2.0L can rev to 10k+), EJ25 can only rev to like 7200 safely (EJ20 with internals can do 8500, maybe higher) etc. Just curious as to what kind of powerband this will support. Sick build btw!
Thanks very much, appreciate it. In all honesty the 1.8t strokers are only marginal increases unlike the 4g63, especially with the 92.8mm crank. There is generally no loss to expected rpm up to around 8200 which is where the 20v head with hydraulic tappets tails off. This build is unlike most strokers out there in that I'm not building this for big power or to rev high, I simply have the parts around so if I'm rebuilding an engine, I may as well use the bits and essentially overbuild for my expected power goals. A torquey fully forged 2 litre build with modest turbo upgrade to easily support 350bhp and stay together with a top end rpm range of 7000rpm (8200 capable) is the spec. Heres to hoping I make it 😁
@@DecimalTenths That's what I like to see! More power to ya man I built my EJ20K here in Canada and threw an HX35 on it. Stock heads itll rev out to 7800 and carries a decent powerband but with no additional stroke, turbo spools in the late 4k range... not ideal for a daily. Are you going to be loosening up the bearing tolerances or shimming the oil pump at all? As a subaru owner, oiling is one of the biggest parts of reliability!
@@erikstuebing5408 yeah I'll definately be aiming for tolerances on the "looser" end of the scale. Still perfectly fine for road use though. The stock 1.8t oil pump should do just fine, they arnt known as being failure points, especially if they are new 😎. Yours sounds a beast, my GT3076r 1.9 S3 was similar spool characteristics, around 4rpm and that thing flew
Thanks dude
Finely explained. Thank you my friend.
I subscribed because of this.
peace
Very well explained,as you mentioned with tdi crank try in the near future when you get bored for the power,to do a stroker with tdi block as well. Keep it up☕
hello i start the 95.5 tdi conversion
Cool 👍
You have a new sub from Norway 🙏🇳🇴
Tanks for THE professionell information.
What do you think aboute stroke a 327csb -69
Hi thanks so much. We hope to make lots more technical videos.
I dont know much about that engine, but I believe it has been done before 🤘
my question is how do i know how much i can move the big in bearing over how do you get that
Great video . Question does it shorten the life of engine ? Also do we have to adjust the valve monthly ? Thanks
Depends on the engine, but generally no it doesn't shorten the life
Can I bore and stroke an RB26DETT, from 2.6L to 3.0L?
Yes sir RB30 has been done many times before
thank sir
Thanks mate, that explains it. Do You pick the bore hole size depending on what piston sizes are available in the market and then ensure that's compatible with the crankshaft you're purchasing too?
Also, after these modifications will you need to retune for more Air/fuel?
Yes the bore size will be made to match up with the pistons you have. They are also chosen to match up to the stroke length that you are using.
For 1.8t, stroker pistons are available in every flavour. For other engines I'm not sure
@@DecimalTenths nice! I'm assuming these modifications require the car to be returned for air/fuel?
question when u using the bigger say original crank trow is 40mm and new one from stroker kit is 42 can u reuse the same pistons if u don't wanna rebore the engine or will the pistons have to be custom where the pins moved up a bit to account for the larger stroke length as to prevent the piston coming out and hitting the engine head??
Hi, yes I'm afraid new stroker pistons are required, for the reason you have mentioned. The gudgeon pin is offset from the piston crown so that the piston does not extrude from the top of the block. 👍
@@DecimalTenths thank u bro
if you put longer stroke in an engine you increase the volume but loose power and rpm ...better increase the diameter
Hi , mate I have a 1.8t golf mk4 can I use diesel version crank to get ove 2.0 litre?
Yep! ALH crank will get you to 2.1 with custom JE pistons
to stroke the engine do you really need to change the crankshaft or keep the same crankshaft??
Depending on the engine there's a few options. Some crankshafts can be offset ground to allow more stroke. Other engines like 1.8ts, its easier to just use a different crank as they're easy to get a hold of
@@DecimalTenths lets say the S54B32 i know there is strocker out there but not sure about changing the crankshaft
Awesome explanation!
Cheers, hope it helped
I have a aeb engine and head on engine stand. It is my first build and cant make up my mind if I should spend the extra time and money for a stroker. What do u think just motor hp gains would be? How much earlier would a gt2871r spool? I really do appreciate the videos and always waiting for the next ones. Thanks
The AEB engine is an EA827 058 block so is different to the EA113 06A block that I have. In all honesty I'm not sure which crank you would use for that stroker conversion, but I'd imagine it's an easy answer to find. In terms of is it worth it, in most situations unless your going for big power then its probably not worth it. On the GT28 framed turbo it will help it spool sooner by 2-300rpm. Peak power will possibly be higher but not by a massive amount as then you would find the top end limit of your turbo kit.
Cheers though, appreciate the comment, and the views 👍
Do every fsi tfsi cranks work in the swap or needs to be specific model of vehicle?
If they are EA113 then they're are a straight swap as per the video (and the next one 😉😉). Later EA888 cranks I believe are a little different.
Where did you find your crankshaft or where is a good place to start looking? I’ve spent some time online and can’t seem to find one in the ballpark range I’d like to spend. Also, thanks for the vids! They were perfect for passing the time in quarantine👍🏻
Hi Evan, what are you wanting to spend? Id suggest £200-300 for a good crank is normal. As for finding them youve just got to keep your eyes on the classifieds and selling pages. Maybes even consider buying a full engine and selling the rest of it. I've seen me buy a car just to get one bit, then sell the rest. Bit extreme that though. Good luck with it dude
@@DecimalTenths that price is not bad at all. I’ll keep an eye out and thank you as buying an engine, and parting it may be the most realistic way to go about it. Thank you for you’re response, and so timely! You’re the man and I wish you the best! Cheers!
@@DecimalTenths one last question can it be from any EA113 engine/year?
@@evanwilson2233 🤙🤙👍
@@evanwilson2233 You want either a 2.0 FSI or TFSI 92.8mm crank
Skip to 4:00, to get the quickest and much simpler answer 😏😅
And miss all the good stuff...?😝
I actually wanted to stroke my 4.4 V8 to a 4.6 but I might just do a 5.0🤔
That was brilliant.
Cheers 👍
hahahaha love the t-shirt!
Cheers.
CAN YOU STROKE A 3.6L VR6 TO A 4.0L VR6 ?
I love you🥺you made my day
Cheers... and cheers...👍
Good stuff mate 👍
😉👍
Although not ideal, you wouldnt have to change the head because of the new pistons? Im a potato i know.
No you don't have to change the head for stroker pistons. Even potatoes need respect 🤘
Aw shit u answered one of my questions i asked in the comments on another video👌
💪😝
@@DecimalTenths where do you take your block to be bored and cleaned in newcl? Thanks
@@GamingByCalslaur4 Engine Services in Dunston. Go see Gordon there and tell him I sent you 😁
Ffanks for the maffs, bruv.
Yeah bruv...
I like your shirt
Cheers they are available if you like them 👍
Are u intersted to try movies for adults
😁
So it was explained in the t shirt. For all the time.?
👍
are y half polish
cu
I was quite happy to build a rCe spect 1.8t........ now its got be a stroker.... and it's all your fault
Don't worry I can take the blame...😉😉