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Since everyone is talking about MAFs...Fired up the custom 100mm maf

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Old 06-02-2006, 10:07 PM
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Default Since everyone is talking about MAFs...Fired up the custom 100mm maf

We've had a project on the back burner and since everyones talking about going back to the MAF we decided to throw on one we made a couple of months back. Its uses the factory electronics inside of a 100mm+ housing. Inital testing shows great response(throttle and tuning). I'll report back in a couple of hours!
Old 06-03-2006, 02:05 AM
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Sounds promising. Let us know how the results turn out. This would be great for FI applications.
Old 06-03-2006, 07:26 AM
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Originally Posted by SmokingWS6
Sounds promising. Let us know how the results turn out. This would be great for FI applications.
Just go 2-bar or 3-bar and be done with it. What is going to happen if your MAF fails on you? Your VE table won't have a clue about anything greater than 100kPA and you will be risking your engine even in non-WOT scenarios. The MAF doesn't buy you anything. The MAF loses it's benefits once you leave the lower air flow rates... look at how much resolution you have have in the lower frequency ranges versus the upper end.

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Old 06-03-2006, 11:05 AM
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how is this gonna help the pcm limitation of max airflow in the maf calibration table?
Old 06-03-2006, 11:20 AM
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going from the 75mm to the 85 mm you get a tad bit more room on the upper frequencies. if the 75mm reads 11000 hz the 85mm will now read 10500 or 10000 hz giving you just a tad bit more room
Old 06-03-2006, 11:39 AM
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that's all fine and dandy, but that's not our problem, the problem is not the frequency axis range, but the airflow axis range.
Old 06-03-2006, 02:37 PM
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Originally Posted by RedHardSupra
how is this gonna help the pcm limitation of max airflow in the maf calibration table?

It's not unless you try to half all the tables....which you could try with a stock maf but would be very time consuming.

Larger maf helps with pressure drop through the maf as the main benefit. If you're running high boost (+16psi), it could pick you up 1 - 2 psi.
Old 06-03-2006, 03:53 PM
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if you're running 16psi, aren't you running 3barSD at which point MAF size is kinda moot?
Old 06-03-2006, 04:28 PM
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I'm running 16 with a maf...no problems in 16 months...1038rwhp LPE car is running a maf...tune for max boost...who cares about boost spikes...lol




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