compression ratio question

what is the highest compression a b-series can run on 93 octane gasoline without detonation/knock? Is 12.1:1c/r and 93 octane acceptable?thanks

Michael Delaney has a wealth of knowledge when it comes to engine performance; I’ll be using a quote from him.

Originally posted by MichaelDelaney

If you know how to tune , you can go as high as 12.3:1 static CR in all motor Hondas using 93 octane pump gas. A safe number is 11.5:1 CR. Stock Integras vary from 9.2:1CR in the LS, 10:1 CR in the GSR , 10.6:1 in the US ITR, and 11:1 in the JDM ITR.

-Hoots

good advice.

i like the quote, makes me feel warm and fuzzy that i have a higher CR than a USDM ITR lol

joe