Granatelli adjustable MAF
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 45
Likes: 0
From: South Carolina
Car: 85 Z28
Engine: ZZ-3,Mini-Ram, Holley EFI
Transmission: 700-R4
Axle/Gears: Hawks 8.8
Granatelli adjustable MAF
Has anyone used or heard any results on the Granatelli adjustable MAF (for 85-89 TPI) over a stock MAF. I think my OEM MAF is a restiction. Thanks for your help!!!!!!!
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 45
Likes: 0
From: South Carolina
Car: 85 Z28
Engine: ZZ-3,Mini-Ram, Holley EFI
Transmission: 700-R4
Axle/Gears: Hawks 8.8
what do you mean?stalling? check engine light? poor performance? thanks for your feedback.
Supreme Member
Joined: Jul 1999
Posts: 2,149
Likes: 4
From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
I believe that the GMAF is no bigger in diameter than the stock MAFs. And yes, the GMAF is very expensive. The attraction of the GMAF is that it is "tunable".
If you are worried about the MAF being an air restriction, well it is. But you can remove both screens and have it flow 658 CFM as compared to stock flow of 518 CFM, that is an improvement of 27%.
658 CFM should be enough air to make about 506 Hp.
518 CFM should be able to make 398 Hp.
FWIW: I am using a descreened MAF on my 395 cu.in. stroker.
If you are worried about the MAF being an air restriction, well it is. But you can remove both screens and have it flow 658 CFM as compared to stock flow of 518 CFM, that is an improvement of 27%.
658 CFM should be enough air to make about 506 Hp.
518 CFM should be able to make 398 Hp.
FWIW: I am using a descreened MAF on my 395 cu.in. stroker.
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