Maxing the MAF
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From: Colorado Springs
Maxing the MAF what RPM are you guys maxing your mafs?
on autotap mine shows
rpm maf
4503 405.4
4792 439.9
i have a 98 so 439 is my max
stock maf
does maxing the maf sooner in the rpm range mean you are making more power?
on autotap mine shows
rpm maf
4503 405.4
4792 439.9
i have a 98 so 439 is my max
stock mafdoes maxing the maf sooner in the rpm range mean you are making more power?
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From: Colorado Springs
Originally Posted by F8L Z71
What are the symptoms of maxing the MAF??
Mine starts reading weird negetive #s at WOT over 4800rpm on my truck
Mine starts reading weird negetive #s at WOT over 4800rpm on my truck
there arent any symtoms per say...but if you log MAF and RPM the value of the maf will climb as the rpm increases..and sooner or later it will max out.
98 cars max out at 439
99+ cars get 511
It actually has to do with the PCM MAF table, rather than the MAF.
A ported MAF will max out *slightly* later than a screened MAF, but not significantly (due to the different shape of the transfer function).
-Kevin
A ported MAF will max out *slightly* later than a screened MAF, but not significantly (due to the different shape of the transfer function).
-Kevin
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I'm curious too as I'm maxing my MAF (98 here too) and tuning after a new fuel system will include attempting to add the 99+ calibration into the PCM using LS1_Edit or HPTuner.
I like the powah too
I like the powah too
too bad that was pretty much all she had at the time 
On The Tree
Joined: Jul 2004
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Originally Posted by slow
wow..."maf transfer function" there is a phrase that i haven't seen on a ls1 forum before. 
Sounds like somebody has some expierence with good ford tuning software
Ryan
Sounds like somebody has some expierence with good ford tuning software
Ryan
