Piston to wall clearance (vitara)
 

putting together another engine... vitaras in a y8. Piston to wall clearance in the y8 block at .003" Honda spec is .0006-.0016 with .002 being the service limit. But this is for stock pistons? The vitaras are still cast so im guessing the block needs an overbore. :-\

can anyone post up their piston to wall clearances in their vitara setup??

Re: Piston to wall clearance (vitara)
 

u need an overbore

Re: Piston to wall clearance (vitara)
 

Vitaras are smaller than Honda pistons......so they'll rattle a bit.

If your concerned get oversized pistons and have the block bored.

Re: Piston to wall clearance (vitara)
 

so .003" is too much?? Kinda figured that would be the outcome.

Re: Piston to wall clearance (vitara)
 

Yes. If the largest gap reccomended is .0016 then .003 is almost double that.

Re: Piston to wall clearance (vitara)
 

yea, but that is for stock honda pistons. Should i see what the spec is for the suzuki (well not suzuki but you know..) pistons? I think their a different alloy

Re: Piston to wall clearance (vitara)
 

mine rattle like a pissed diesel in the morning when i start it up. but after it warms up you can tell the pistons expand a bit and it quiets right up.

Re: Piston to wall clearance (vitara)
 

Yep only Vitara setup ive seen was the same way. With the Viraras u get what u pay for :l

Re: Piston to wall clearance (vitara)
 

Let em rattle, it puts hair on your chest.

Re: Piston to wall clearance (vitara)
 

they are fine...mine measured the same...and i think we all know how well they worked for me :P

but yea they do sound like a deisel truck warming up but once they are hot they sound like any other forged piston...i had a friend with cp's in his car and they sound identical...you couldnt tell who had what pistons in there car from the sound of the idle.....

i had the head off one time and there was some slight scarring on the walls but nothing i could feel with my finger nail...and that was with about 7k miles on the build...we were very concerned with the piston to wall clearance as well but i think its only an issue on cold start up. the vitaras seem to expand nicely and fill the gap.