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1990 Si Hatch
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518 Posts
Discussion Starter #1
I figured I could find these pistons at any auto part site.. I was mistaken. I've looked everywhere and cannot find them. Ebay doesn't even have them..

Help a brotha out!
 

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Honda
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2,692 Posts

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Registered
1990 Si Hatch
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518 Posts
Discussion Starter #6
Vitara specs?

I'm trying to figure out my potential C:R... anyone have access to vitara specs?
 

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Registered
1990 Si Hatch
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518 Posts
Discussion Starter #10
Damn that's a low ass comp ratio...

7.59.. A milling/gasket combo should raise that C:R right?
 

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Registered
1990 Si Hatch
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518 Posts
Discussion Starter #12 (Edited)
It's a ZC... I'm not too sure what an optimal boost C:R is but you can only mill a head so much... I put .010 for the mill in the calculator... hardly raised the compression. I also tried a z6 head milled with a z6 gasket... Raised it up to 8.28.. Still seems low though..
 

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Lifetime Awesome Member
'89 CRX HF
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25,544 Posts
It's a ZC... I'm not too sure what an optimal boost C:R is but you can only mill a head so much... I put .010 for the mill in the calculator... hardly raised the compression. I also tried a z6 head milled with a z6 gasket... Raised it up to 8.28.. Still seems low though..
yup, Vitaras and the dohc ZC dont mix well...
 

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DROP IT LIKE IT'S HOT
2003 Civic Si
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3,003 Posts
iN MY OPINION I THINK THAT A 8.5:1 COMPRESSION IS PERFECT FOR BOOST
 

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Registered
1990 Si Hatch
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518 Posts
Discussion Starter #17
I'm not sure how you got 8.5:1, can you tell me if I input something wrong on this calculator?
 
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