Running rich!
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On The Tree
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Joined: Oct 2005
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From: Brockton, Massachusetts
Running rich! My 96 formula is running rich. If I up the fuel pressure on the aeromotive regulator will I lean it out a little? I have always had a problem with the car running rich. Its been mailorder tuned and adjusted about 5 times. I just want to lean it out a little because it is at a stoiac 14.1-1. 
Originally Posted by ladybird
My 96 formula is running rich. If I up the fuel pressure on the aeromotive regulator will I lean it out a little? I have always had a problem with the car running rich. Its been mailorder tuned and adjusted about 5 times. I just want to lean it out a little because it is at a stoiac 14.1-1.
New England Dyno in Douglass on Rt. 16 does LT1 dyno tuning.....My car is there now waiting to be dynoed. The only thing is the car may be there a while because they use LT1 edit and the 96/97 need a pcm upgrade (so im told by the guy there). So hopefully your formula isnt a daily driver.
Originally Posted by ladybird
My 96 formula is running rich. If I up the fuel pressure on the aeromotive regulator will I lean it out a little? I have always had a problem with the car running rich. Its been mailorder tuned and adjusted about 5 times. I just want to lean it out a little because it is at a stoiac 14.1-1.
Originally Posted by dhdenney
Stoichiometric is 14.7:1. You only want to achieve that AFR when cruising. Lowering the fuel pressure would lean you out some but you don't want to tune with that. You want to tune your fueling through the PCM. Anyone know what WOT AFR would be ideal? I'm gonna tune mine for 12.5:1 but I wanted it kinda fat for nitrous.
Mid-High 11:1 is good to shoot for. Funny you mention that, it took playing with multiple jet sizes to be sure. I'll never just put in 'recommended' jets for a hit of nitrous again. Wideband ???.
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Originally Posted by WhyHelloOfficer
Besides the initial lean spike on the hit, my car stays dead on 11.8:1 until I let out.
Mid-High 11:1 is good to shoot for. Funny you mention that, it took playing with multiple jet sizes to be sure. I'll never just put in 'recommended' jets for a hit of nitrous again. Wideband ???.
Mid-High 11:1 is good to shoot for. Funny you mention that, it took playing with multiple jet sizes to be sure. I'll never just put in 'recommended' jets for a hit of nitrous again. Wideband ???.
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