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View Full Version : A/F ratio on N20..recent Race Pages article


Rick 91GT
09-26-2002, 04:47 AM
I was reading the RP and was looking at Bruce Hemmingers R/S car and it had him stating he runs the N20 rich 10.5:1 and has had great results, making more power time and time again. His car runs awesome for what it has, true Billy Glidden built the motor but the rich condition through me for a loop.

I'm heading to the dyno for some NA pulls this weekend, but plan to make a appointment to make some pulls on the N20 and try to tune it in. Is it safe to bring the A/F ratio up that rich to see if more power is available or are there other factors that allow him to do this?

Roy Johnson, Jr
10-03-2002, 09:26 AM
It would seem that you would want to start from a rich condition and gradually lean it out while tuning.