75mm vitaras not actually 75mm's ???
 

hey my machinist just called me and told me my vitaras arent actually 75mm ?? is this possible, he says the block is fine and its exactly 75mm, but not my pistons, im gonna have a .008 piston- wall clearance if i still go ahead with it , now is it possile hes just ether trying to screw me into buying other pistons at his shop ? and if not if i let my car warm up and the pistons expand before driving it will i have blowby with that much clearance ? this blows lol...

Re: 75mm vitaras not actually 75mm's ???
 

old news.......

did you look up the specs on STOCK Vitaras?

Guess not.

Re: 75mm vitaras not actually 75mm's ???
 

no .. lol wtf reasons would i look up stock vitara specs, when i buy pistons that are written 75mm on the box i expect 75mm pistons, not 74.8 -+

so what about my massive piston-wall clearance ??? if i let her warm up till she stops knocking etc, any chances i get blow by or worst.. ?

Re: 75mm vitaras not actually 75mm's ???
 

thats why in america, we measure pistons in thousand's of an inch.

my stock pistons are written and ordered as 3.875" (98mm).....

but do you know what 98mm is..... 3.858, 0.017" difference

Re: 75mm vitaras not actually 75mm's ???
 

This is pretty common knowledge. Most people just use them anyways and deal with the slop in the clearance.

If you are that worried about it, you could go with some 76mm vitaras and bore the cylinders out. A budget setup is a budget setup though, if you want tighter clearances you could always go with some real forged pistons, they come in all different sizes ;)

Re: 75mm vitaras not actually 75mm's ???
 

vitara's have slap for a reason. If you want to do it right sell them buy a set of forged pistons

Re: 75mm vitaras not actually 75mm's ???
 

I find this topic funny since there are lots of guys running vitaras all the way up to 400hp. You should go over to honda-tech an take a look around there about those pistons

Re: 75mm vitaras not actually 75mm's ???
 

the fact that people run them with high hp doesnt mean that they dont have a lot of piston to wall clearance when used with a stock bore

Re: 75mm vitaras not actually 75mm's ???
 

so what does everybody do then? just deal with it?

Re: 75mm vitaras not actually 75mm's ???
 

seems like it...or you could get oversized ones and re-bore but it all seems like a waste