Stock Maf Limits

phunk

I have never personally tried it, but I am under the impression that the loss of resolution at lower airflow can make it difficult to tune low-load areas of the map. Where that comes into play, I am not sure. But I think the 03 Cobra guys start with like a 3.5" MAF tube and upgrade to like 4-4.5" since they are pull-through.

I wonder if there could be an easy way to just sort of restrict how much air actually passes through the MAF sensor, rather than having to put it in a larger tube?

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Mitco39

I dont think you would have that issue myself. At lower airflow the car is running in closed loop anyways so the MAF is not really watched at all anyways. All you would have to do if you were having issues at lower load is just pull the car out of closed loop later and let O2s deal with the resolution down low.

It was discussed a bit earlier in here that you can just move the maf closer to the wall of the tube and because you assume laminar flow through the pipe the velocity of the air moving near the wall will be less.

I think if you go to big you will cause turbulence in the piping since they are relatively short to begin with and you need that smooth flow to be able to accurately meter it.

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2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Mitco39

Also on a side note your fuel kit is working awesome. It holds 65+ PSI all day under boost with no signs of slowing down. All this wouldn't be possible on the stock system.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html