I have a question about the static compression ratio for this motor combo. It has been along time since i have messed with B series motors so i am not sure.

B16a block, and crank, with CTR pistons, and a GSR head.

IIRC the gsr combustion chamber is different the b16a and b18c1/5 and i thought it neted more compression...


Thanks for the help

 

~11.1:1

 

I'd probably be leary about clearances of those pistons with the head. They'll be out of the hole on the b16a block. And yes the GSR does have a smaller combustion chamber than the B16/ITR head. It'll probably net in the range of an additional 0.2-0.4 compression depending on what combo of parts is used and how far in/out of the hole the pistons are going to be.

 

thanks for the help, i talked to some one super knowledgeable on the subject. And he said it isn't needed and just causes issues using the GSR head.

Any one have a b16a long block for sale?