Bad MAF Or Programming Error?
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Bad MAF Or Programming Error? We did some 1/4 mile WOT Tech2 Data logging and found the MAF stopped reading out at 361 grams.
Your experianced opinions on rather the MAF is bad or there is a problem in the tune please?
How do you test a MAF?
Radix & Magnuson Superchips tune. See Dyno charts in sig.
Your experianced opinions on rather the MAF is bad or there is a problem in the tune please?
How do you test a MAF?
Radix & Magnuson Superchips tune. See Dyno charts in sig.
The MAF will flatline at the flow limits of the engine.
This ought to coincide with the "flat top" of the
HP-RPM curve (airflow = power pretty much). If
you improve the high RPM breathing and the MAF
doesn't change then suspect the MAF. But I know
on my 5.7 logs I see 300-310 at 6000RPM.
I'd say 361 indicates a boost level of about
4PSI on the smaller motor, at the big end?
((316/310)*(5.7/5.3)-1)*14.7PSI
This ought to coincide with the "flat top" of the
HP-RPM curve (airflow = power pretty much). If
you improve the high RPM breathing and the MAF
doesn't change then suspect the MAF. But I know
on my 5.7 logs I see 300-310 at 6000RPM.
I'd say 361 indicates a boost level of about
4PSI on the smaller motor, at the big end?
((316/310)*(5.7/5.3)-1)*14.7PSI
Thread Starter
TECH Fanatic
iTrader: (2)
Joined: Mar 2004
Posts: 1,475
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From: 30 Miles North of Atlanta
Thanks. Let Me Run This By...
Originally Posted by jimmyblue
The MAF will flatline at the flow limits of the engine.
This ought to coincide with the "flat top" of the
HP-RPM curve (airflow = power pretty much). If
you improve the high RPM breathing and the MAF
doesn't change then suspect the MAF. But I know
on my 5.7 logs I see 300-310 at 6000RPM.
I'd say 361 indicates a boost level of about
4PSI on the smaller motor, at the big end?
((316/310)*(5.7/5.3)-1)*14.7PSI
This ought to coincide with the "flat top" of the
HP-RPM curve (airflow = power pretty much). If
you improve the high RPM breathing and the MAF
doesn't change then suspect the MAF. But I know
on my 5.7 logs I see 300-310 at 6000RPM.
I'd say 361 indicates a boost level of about
4PSI on the smaller motor, at the big end?
((316/310)*(5.7/5.3)-1)*14.7PSI
My boost gauge says 6.8 to 7 psi according to conditions. I tested the boost gauge on our instrumentation bench on the job so there is no question there. So with a Radix pushing 7psi and a MAF only reading out 361, what say yee?
