i'm currently rebuilding my b18b and i was wondering if i could use ctr b16b pistons. thanks in advanced

 

Yes u can they have the same bore 81mm.. good luck and it'll bump CR to approx 11.5 or so..be ready to get 91+ octane

 

You can( I did), but you need to modify the small end of your connecting rods to accept the CTR pistons.

 

I'm going to put the PCT piston into my B18C engine. Anyone have the figures regarding the clearance of piston to cylinder? I want to make sure I get the right size piston.
Someone post an picture before but I can't find it again.

 

A standard bore PCT piston is the same size as a standard bore GSR piston. Or you can bore the motor 0.25mm and install oversize PCT pistons.

 

NOPE... talk with "tony1" he done it many times and can tell you all about it.
he told me that with the CTR pistions in the B18B the compression was little over 12.5:1 he had to do some tunning w/ the AFC and use 93oct to prevent pining.

HTH

 

Thanks.
I will check the bore condition and want to get those figures of the bores. If the size is okay, I will keep 81 and not go for 81.25.
By the way, if B18C use PCT piston with stock gasket, the compression will less than 12:1?

 

B18C + PCT pistons = 12:1 compression +++. About 12.5:1, but don't quote me.

 

CTR pistons in a full b18a/b non vtec motor with oem 3 layer gives about* 11.6 to 11.7:1 compression. those figures chance with oversized a lil bit.

http://www.c-speedracing.com/howto/c...c/compcalc.php

http://www.bojangs.com/calculator/