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-   -   another vitara question (https://www.homemadeturbo.com/hybrid-tech-8/another-vitara-question-28244/)

dohc 10-16-2004 08:13 PM

another vitara question
 
ok so ive been reading up on all this piston hype......and how some say its only better due to the low ass c/r, which seems true but the metalurgy seems much better also......anyways what would i be lookin at as far as c/r with an a6 block and y8 head with stock hg? from the d series compression calculator i used an a6/y8 combo yeilds around 10.8....and it seems that the pistons drop the c/r around a full point so would we be talking 9.6-9.9???? that seems much more useable for turbo to me than the 8.0 c/r im seeing people have with those pistons in other d-series setups.......i may be talkin out my ass but a decent c/r with stronger pistons sounds good....

con 10-16-2004 09:29 PM

Re:another vitara question
 
I think the difference to a good set of aftermarket would be well worth the extra scratch. Cast is cast and it will fail. my.02 ;)

turboboy 10-16-2004 09:31 PM

Re:another vitara question
 
i agree...for a cheap build they sound ok, but i would rather spend the $$ and get a set of brand-name forged pistons in whatever comp. ratio you want ;)

dohc 10-16-2004 10:49 PM

Re:another vitara question
 
true, but im just lookin to run 10psi daily.....i could tell you more but they seem good for a rebuild

HondaTuner 10-16-2004 11:22 PM

Re:another vitara question
 

Originally Posted by ghettoturbo
i agree...for a cheap build they sound ok, but i would rather spend the $$ and get a set of brand-name forged pistons in whatever comp. ratio you want ;)

w3rd. Vitara's drop your compression way low (something crazy like, 5:1) so when you're boosting 20 psi, its running the same HP/TQ as another guy running 10 psi on stock internals :-\ I completely agree with ghettoturbo here, save your money and do it right ;)

EDIT: just read your last post.. run 10 psi on stock internals. Should last ya a while :P

turboboy 10-16-2004 11:34 PM

Re:another vitara question
 

Originally Posted by B18TurboEF
true, but im just lookin to run 10psi daily.....i could tell you more but they seem good for a rebuild

stock internals are your friend ;)

dohc 10-17-2004 12:26 PM

Re:another vitara question
 
i agree....but i plan on rebuilding an a6 block......and i have a y8 head.....and vitara's seem to be stronger and pretty cheap too.....

Dr.Boost 10-17-2004 02:35 PM

Re:another vitara question
 

Originally Posted by SinisterCRX
w3rd. Vitara's drop your compression way low (something crazy like, 5:1)

I doubt it would even run at that low of compression. :P It puts you in the high 7's-low 8's depending on your motor.
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djfob 10-17-2004 08:55 PM

Re:another vitara question
 
they're not too bad in a z6, about 8.5:1 comp.

88crxSi 10-18-2004 01:13 PM

Re:another vitara question
 
the y8 head and y8 head gasket will bump the compression to 10:1, so those pistons will drop it back down to.. 9:1 or 8.5:1 somewhere in there.. sounds good to me.


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