A/F Ratios and Tunning
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Originally Posted by Slomo Corey,May 10 2007, 10:17 PM
I do quite a bit of tuning so here's my .02
Idle/Cruising (30kpa to 75kpa) 14.7 to 15.2 a/f
Mid Throttle (75kpa to 100kpa) 13.5 a/f
WOT NA (approx. 100kpa) 12.5 to 13.0
WOT Boost (110kpa to 300kpa) 10.5 to 12.5 a/f depending on Gas, Boost Levels, and how conservative you would like you vehicle to be.
This is a WRX I recently tuned. It has a Boost curve and Air/Fuel Ratio Curve.
Hope this helps.
Corey
Idle/Cruising (30kpa to 75kpa) 14.7 to 15.2 a/f
Mid Throttle (75kpa to 100kpa) 13.5 a/f
WOT NA (approx. 100kpa) 12.5 to 13.0
WOT Boost (110kpa to 300kpa) 10.5 to 12.5 a/f depending on Gas, Boost Levels, and how conservative you would like you vehicle to be.
This is a WRX I recently tuned. It has a Boost curve and Air/Fuel Ratio Curve.
Hope this helps.
Corey
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0-100kpa is Vacumm Area's or Inches of Mercury. Normally a car will idle from 25kpa to 50kpa depending on the Cam Profile and the motor design. If you have a boost Gauge in your car 25kpa to 50kpa will translate to your needle sitting around 14 to 21 Vac./inches of Mercury.
100kpa is basically WOT on a NA Vehicle
200kpa is 14psi of Boost
300kpa is 28psi
Hope this helps. Didn't mean to confuse anyone.
Corey
100kpa is basically WOT on a NA Vehicle
200kpa is 14psi of Boost
300kpa is 28psi
Hope this helps. Didn't mean to confuse anyone.
Corey
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