I'm looking into a b16a1 swap for my civic and I'm a bit concerned about the 10.2-1 compresion ratio.... here in my little part of the world, the best octane rating we can get at the pumps is 92. am I going to have problems with that? is anyone out there running 92 or less in their b16a1? I have more stupid questions, but i'll try to space them out over time.

 

I ran 93 oct on my 11.4 1 r motor with no detonation at all , even in the summer with 16 deg timming. This was with a skunk ecu.

 

You'll be fine with that C/R .. you can even get away with 87 if your a cheap bastard...

 

Man that's gotta suck.. we got 98 <u>RON</u> available at 95% of the gasstations.. That's probably why we get higher spec engines (like the 321 hp M3)