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MAF lbs/min conversion to hp

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Old Feb 23, 2004 | 12:07 AM
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Default MAF lbs/min conversion to hp

What is the formula again?

I'm pulling 57.71 on a regular basis with 55'ish outside temps. What would that equate to in hp?

I'm seeing 1.05-1.07 g/sec too. Wonder what a pulley change will get me?
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Old Feb 23, 2004 | 08:45 AM
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I think its 9.8 or something real close to 10 times the lb/min number=flywheel hp. So its probably real close to 570 fwhp. Then I think you have to subtract whatever it takes to run the blower. Probably 50 hp or so?

Do you mean 1.05-1.07 g/cyl?

How many psi are you seeing?
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Old Feb 23, 2004 | 09:35 AM
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Yup ... that's what I meant.

I see about 7 psi when I nail the throttle and 7 1/2 at the top of the gears.
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Old Feb 23, 2004 | 10:03 AM
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59.9lb/min is the most you will see on the stock maf, or 454gm/s. The PCM is capable of reading 512gm/s, but requires a rescaling of the maf tables in edit. I hit 59.9lb/min very easily and do it regularly with 10lbs of boost. I have not tried to alter my maf tables yet, though.
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Old Feb 23, 2004 | 10:07 AM
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What about using a different MAF?
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Old Feb 23, 2004 | 10:36 AM
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From what I understand, the stock maf will do, just need to redo your tables in edit in order for your PCM to read beyond that number.
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Old Feb 23, 2004 | 03:47 PM
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Originally Posted by BenKey
From what I understand, the stock maf will do, just need to redo your tables in edit in order for your PCM to read beyond that number.
FWIW Ben If your going to play with it any way load up a 03 ZO6 table. It isn't much different but the curve is sharper.

BTW I got your mail... Experienced? Say good bye to your trans
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Old Feb 23, 2004 | 04:40 PM
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Hopefully not before I build it up. You're still trying to jinx me, aren't you?
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