Originally Posted by
Provocateur
ITR pistons will drop the compression ratio in a B16A, they increase it in B18 motors. CTR pistons will increase it the C/R in your setup by only a few points. Your numbers are right in that table and it shows that the ITR pistons drop the compression since the stock compression is 10.4:1.
I am using Supertech springs for my build. Skunk2 is also a decent choice. I haven't had great experiences with other Omni stuff, so I would avoid them.
I'm not sure if the UKDM ones are different but I know the USDM and JDM variants redline at 8400 rpm.
I would say anything in the 11.5:1 or higher range would work well with those cams.
Ok thanks for the help, ill try and find some b16a or b16b pistons to use at very least.
How much can i skim the head to raise the comp? i have a cometic head gasket too (.027") to help raise the comp abit.
Ill have a look for those supertech springs as ive not seen them in the uk before.
Unfortunatley im on a slim budget with this build......im just rebuilding it with the cheapest/best parts i can get my hand on as im desperate for the car to be back on the road (daily driver) it was a turbo build gone wrong
