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Maft problem? wont rev past 6k

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90gst

15+ Year Contributor
66
1
Apr 27, 2005
Naperville, Illinois
Hello, I had a post about my car not reving past 5k...my car mods are big16g ported clipped, maft v2.01 with 3" maf blowthru setup, 3" exhaust turbo back, 2g manifold. I have the stock 1g o2 housing. Also I do not know how to conpensate for a breather on the valve cover, I was told I need to compensate. I then got a fuel filter, a 190 walbro fuel pump and 550cc injectors, now the car revs up to 6k and it doesnt cut out bad, its like it cuts out for like 1/1000 of a second and comes back and cuts out, so it still keeps reving up after every cutout like 100rpm more til it hits like 6500rpm then it completely cuts out til the rpms go down to like 4k....any ideas? anyone around the chicago Aurora area that could help out by checkin it out?
 
Sounds like you need to have your A/F settings tuned. The MAF-T is somewhat limited in that aspect. Ever consider purchasing a stand-alone unit? They are pricey but they have the ability, if properly tuned, to get the max potential out of your motor.
 
I have a S-afc on the car that I just installed, now I have a different problem, I am running a 3" gm maf and dont know what sensor type to put on it
 
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