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View Full Version : ITR/CTR piston ques??


deadone000
10-28-2007, 12:05 AM
if runnin itr/ctr pistons on a b18a1 will i need to run over 93 octane??or would 93 be fine?

07NHBPCivicSi
10-28-2007, 08:02 PM
if runnin itr/ctr pistons on a b18a1 will i need to run over 93 octane??or would 93 be fine?

93 will be fine, its all about how u tune is when u should be worried about octane levles, what head are u using, CTR pistons are very aggressive, clay ur head b4 you run it to ake sure u have proper clearences

deadone000
10-28-2007, 09:09 PM
the head im going to be using will be a b16 pretty much going lsvtec but im taking my time to get all the neccesary pieces to build it right the 1st time

CHR!S
10-28-2007, 10:08 PM
running itr pistons will be fine

i believe that running the ctr pistons puts compression up around 11.8-12.2:1 depending on the headgasket, spec of the head, etc.

i think it would be safe to run the itr pistons b/c ive been told by several people you should run slightly higher octane on cars over 12:1

07NHBPCivicSi
10-29-2007, 03:46 PM
the head im going to be using will be a b16 pretty much going lsvtec but im taking my time to get all the neccesary pieces to build it right the 1st time

u might have a problem with clearence with the CTR;s Itrs would be good tho...check honda-tech for this stuff way better then TRi...just rember search on H-t dnt post haha