I'm really hoping on getting this turbo kit next year and was wondering what piston compression I should be looking for. Right now I have an H22a with 10.6.1 compression. Here's the setup I was looking at.
Turbonetics T04/T3 turbocharger
To4 60 Trim....spools @ 4,500rpm
Tial wastegate
Spearco intercooler
Blitz dual drive BOV

Can anyone help with what pistons would be the best choice? Thanks

 

h22 pistons are a bitch because u must sleeve the block
frm ownz you

u can also just change the inner cylinder walls to save some cash since i believe those years of h22s has a closed deck

 

9:1 but since its gotta be sleeved to run forged pistons why not have 8.5:1 and 25 psi or so ...

 

you dont need to resleve your block i have a set of mahle gold 9.1 c/r pistons in my car for the last 4 months and there working fine

 

FRM is the cyl walls, not the pistons.

 

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