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View Full Version : Safe A/F ratio for SR20


jblackwell
10-21-2007, 02:24 PM
Guys,

I have searched high and low, but it seems that most do not post their respective A/F ratios with their dyno sheets.

So, what A/F ratios are most of you targeting when tuning an SR? Does it differ when you step up to race fuel?

Help appreciated!

John

Koopa Troopa
10-21-2007, 02:26 PM
11.2 - 11.7... I wouldn't recommend gonig any leaner than 11.7. You're not going to get enough out of the car to warrant going that lean under load.