is this possible has anyone tried it, if so what are the effects?

 

works great for mini-bikes.

 

stock block can only be bored at most 20over. so there is no way you can bore it to 4 liter. you would need to stroke it to get that kind of numbers

 

can someone explain stroking or give me a link. i tried to search

 

...and make sure you don't let anyone see you when you are stroking it... i got arrested for that once!

 

HAHA

 

grrr where can i learn what stroking is. i can only guess by knowing what a stroke is.

 

boring makes the cylinder diameter larger, and stroking makes the piston stroke longer...both options increase displacement, since displacement = volume of cylinder (Area*Length)

 

why is stroking illegial

sry for newb question

 

As long as you stroke it in the privacy of your own home, you should be fine.


PS: supposedly it can cause blindness, but I've never seen any proof of this.

 

umm what exactly do u have to do to stroke out a engine??? b/c if it is simular to boring then i dont think that i can do it

 

um *cough*stroking_IT_*COUGH*

 

lmao

stroke it...

 

lol ok can u tell me why this isnt possible, like what i would have to do...

recpect the newbie

 

great advise guys.. few more comments and this thread should be moved tothe off topic section..

 

has anyone ported and polished your heads yet? Any inprovement in HP? I know they offer pp heads but cost way to much! Much cheaper to get them done at a shop.

 

the sleeves arent thick enough to safely remove that much material. 20 over would give you like 3-4 more cubic inches (think 3.55l at most) so the only way to up the displ is with a longer stroke

 

yea then i asked about stroking it out and everyone laughed.. why what do u do to the engine to "stroke it out"? where do u shave metal from or is it done with parts?

 

I recommend getting your head polished the same time you're getting stroked for full effect. Believe it or not, female mechanics tend to be best at this skill. But you'll also want to get sleeved for protection. Also, the sleeve can reduce sensitivity to premature detonation.
--
Jeff

 

i usually start by caressing the block tenderly. ...but maybe just a nip of octane booster first, just to get everyone in the mood. then break the whole thing down; slap some axel grease in... and work the shaft hard and heavy. she should be about up to speed then. just make sure you take your time and have patience not to finish until the job is done.