Ramairbird

iTrader: (17)

Just like the title says. mods are in my sig. I am running a Whisper lid that I assume is a 78 mm unit going to a stock 78mm MAF. Then I have the stock bellows for now going to the Holly 90mm TB. At WOT over 6000rpm my map sensor drops from 99kpa to about 94. This makes me think I have vacuum in the intake during high airflow. 'm guessing this is due to the small intake track I have.What does everyone recommend for a maf or ends and what lid is avail. that will fit a larger maf. Thanks.

WKMCD

iTrader: (2)

I was dropping down to about 92-93Kpa with the 85mm MAF. I put in a 4 inch down tube and a 100mm MAF and Kpa now stays up around 100. Build in sig.

Ramairbird

iTrader: (17)

any other input?

JonCR96Z

iTrader: (33)

Assuming that your air filter isn't clog. I would way that your MAF is the culprit. Take the money that you were gonna use on buying a replacement and put it towards some tuning software and just tune it for SD and trash the MAF all together.

davidws6

iTrader: (36)

+ 1 on the SD tune n throw away the MAF ! + 4" tube. Makes em breathe nicely !!

The Alchemist

iTrader: (19)

For an intake lid, try the FASTtoys lid. It says 85mm, but it's actually larger than that on the ID.

ajw2500hd

iTrader: (12)

i am having the same problem but my car has a junk slp maf!!! but i also have a 98 pcm and they said there is no sd for that pcm!

JonCR96Z

iTrader: (33)

There is a 2 bar SD for the 98 PCMs that will work, or you can just pull the MAF and run it that way. There are pluses and minus to that but with a proper tune you'll not know the difference.

ajw2500hd

iTrader: (12)

Sweet thanks for info!! I need to take that **** *** slp mass off it sucks!