I think my MAF is maxing out?

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FT7087
Posts: 6
Joined: Thu Apr 07, 2011 6:14 pm

I think my MAF is maxing out?

Post by FT7087 »

I have a modded 3800 series II L67-fiero, 65# injectors, high ratio rockers, custom sheet metal intake plenum, running 20psi on a T70, car falls on its face over 6000rpm or any higher boost, starts leaning out. PE vs RPM is maxed out in upper rpm. Auto Xray scanner is reading 220gr/sec. Is there anyway to scale the MAF so that it tricks the computer for output frequency? Or is the only option to go with a bigger MAF?

thanks.
robertisaar
Author of Defs
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Joined: Sat Feb 21, 2009 3:18 pm
Location: Camden, MI

Post by robertisaar »

what MAF are you running on it now?

and while i'm at it, what mask?
FT7087
Posts: 6
Joined: Thu Apr 07, 2011 6:14 pm

Post by FT7087 »

LS1 SLP MAF 85mm.

Found out today that my PLX wideband sensor needs replacement. My A/F reading is 2.2 points higher than what we read off the the NTK unit at the dyno. Pig rich so likely the cause of missing in the higher rpm range, blowing out the spark. I will retune the next few days and see how it runs.

415hp at 15psi with a flat 9.0 A/F. Room for some improvement I would say.
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