View Full Version : Stage 1 Typical A/F Ratios?
SRTSuch
08-30-08, 07:13 PM
Could anyone tell me what my wideband should be reading if connected corectly? I have stage 1 + bolt ons... intake, WGA, EBC, hard pipes, FMIC, exhaust and no fuel mods and I start reading 10.2 and end all the way up to 12.1 by 6k RPM - I always thought I should be reading around 9.8 throughout most of the RPM range, but maybe i'm wrong... or maybe it's my sub-par ability to ground wires? :woot:
Any help would be appreciated
SuperMario
08-30-08, 07:34 PM
Could anyone tell me what my wideband should be reading if connected corectly? I have stage 1 + bolt ons... intake, WGA, EBC, hard pipes, FMIC, exhaust and no fuel mods and I start reading 10.2 and end all the way up to 12.1 by 6k RPM - I always thought I should be reading around 9.8 throughout most of the RPM range, but maybe i'm wrong... or maybe it's my sub-par ability to ground wires? :woot:
Any help would be appreciated
Stoich is 14.7 and thats what the PCM tries to keep the car at. At the top of the rpm's you should be NO higher the 11.7 as that is optimal. 12 is a bit too lean unless your running alky / meth... You can do damage if your in the 12's or above.
Running too rich can also cause damage as well. 9.8 is Really rich, and your losing HP that way.
What are u boostin at WOT/redline...?
If u are over 12 AFR's then do turn it down a notch....:readclose
SRTSuch
08-30-08, 08:22 PM
boost at redline i think is your typical 15 lbs - i gotta check my e-01, but i haven't hooked up an emanage to it yet so im just wondering if my values are on target so i can take the next step and install my emanage thats been collecting dust for the longest time in my room
SRTSuch
08-30-08, 11:20 PM
boost at redline i think is your typical 15 lbs - i gotta check my e-01, but i haven't hooked up an emanage to it yet so im just wondering if my values are on target so i can take the next step and install my emanage thats been collecting dust for the longest time in my room
UPDATE: Figured out it was my grounding - I separated the heater ground wire from the other 3 grounds and it's working great now.. 9.8-10.0 A/F from 3k to about 4.5k RPM then starts to go up to about 10.7 by 5800rpm (this is at 19.5psi to 16 redline... A/F curve stayed flat pretty much when I had it at an 18 spike & 15 hold)
emanage going on tomorrow :yay:
boostedneon04
08-31-08, 01:24 AM
UPDATE: Figured out it was my grounding - I separated the heater ground wire from the other 3 grounds and it's working great now.. 9.8-10.0 A/F from 3k to about 4.5k RPM then starts to go up to about 10.7 by 5800rpm (this is at 19.5psi to 16 redline... A/F curve stayed flat pretty much when I had it at an 18 spike & 15 hold)
emanage going on tomorrow :yay:
tune it to 11.4 across and call it a day
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