What AFR to aim for?

[gawdzilla]

dont think this has really been discussed before... but from what i'm reading on SDU/SAU, people say to shoot for a high 10s.. to low 11s air/fuel. I've been running pretty rich on mine at 10.8 or so to stay on the safe side (= black smoke at WOT), and bsaically timing as advanced as possible before knocking. anyone else?

[eh?]

I'd go with 11.5:1 with a 1deg retard/ 1 psi timing. I ran that way with 13psi t3/t4 on my rb25. planning to do the same @ 20psi with a 62-1. A word of advice, even though SAU members actually own skylines and rb's there's only a few who actually know anything (ie: sydney kid).

[gawdzilla]

A word of advice, even though SAU members actually own skylines and rb's there's only a few who actually know anything (ie: sydney kid).

ya, i agree w/ that statement, you can tell by reading some of the threads..

i will try leaning it out a bit to get some more power