90mm LSX MAP numbers

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Apr 20, 2004 | 08:59 AM

#21

WILWAXU

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From: League City, TX

Quote:

Originally Posted by Trans Am 2 N V

Just get a FAST computer system and wont need the maf

you also won't be able to use you stock gauges, 4L60E and a couple other things not support by that setup

Apr 20, 2004 | 07:48 PM

#22

P Mack

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From: Phoenix

Quote:

Originally Posted by gojo

With the stock intake my MAP numbers at WOT were always 99kpa. With the 90mm LSX and 90mm TB they are averaging 96kpa. Is it possible the MAF is not supporting the airflow? I guess it's possible the t.blade might not be fully open when it reads 100%? Also, the MAF lbs has increased from 42 to 47 lbs. Anyone seen this on their setup?

Do you know what the barometric pressure was for before and after? I guess an easier way to tell would be to compare the MAP reading with the engine off to the MAP reading at WOT. That would tell you the loss of pressure through the intake, TB, maf, etc.

Apr 20, 2004 | 08:15 PM

#23

gojo

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From: w.s.n.c.

Quote:

Originally Posted by P Mack

PMack, I think you got it. The kpa was 98% with the engine off. (we were expecting rain) The around town logs all show it at 100% normally. I don't know what the BP was at the track. The track is the only place I can get a good start to finish run and make the comparison. I bet the comparisons hold up next time at the track.
Thanks, you saved me from making some mistaken changes.
Joe

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