If someone knows this please help me!
I am going to build an all motor B18b with no Ls/Vtec, right now i am thinking about putting Crower rods with CTR or USDM ITR pistons but i need to know what the compression ratio should be? i am shooting for high Compression. Which piston would be easier to install and to use for daily driving but also performance wise?

 

i think the usdm ITR are 11:1 and the jdm ITR are 11.1:1 and the CTR are ~11.5:1 something like that.

 

the usdm is 10.6:1

 

oh yeah your right...i forgot. are the jdm ones 11:1

 

In an LS block on LS rods, JDM ITR pistons give 10.3:1 compression, CTR pistons give 11.4:1 compression, JDM B16a pistons give 11:1 compression.

Ur best bet for the money is find PR3 or P30 pistons. (JDM and USDM B16A pistons)

 

Thanks for info guys.

 

Ummm.... The CR specs look fine... but I don't think you can press ITR or CTR or any stock Honda piston onto a Crower rod.... different wrist pin design.

You'll need to use a stock Honda rod to use these pistons.

X2