- Wed Jan 11, 2012 9:01 pm
whoever you're talking to about UpRev is trying to fuck you.
running open dump and UpRev makes no difference. hell, you can run without an exhaust if you wanted to, and it wouldn't make a difference in what tuning software you use.
as long as you have your primary o2 sensor installed, you'll be fine with UpRev. NO, you don't need a different MAF, whoever fed you that is full of shit. you can buy an HPX or PMAS MAF, but really, with UpRev, you don't need it unless you're making gobs of power, which you're not (i'm talking 500+whp).
the thing with 'clamping' the maf is about air flow. on 02-03's you use an FIC to 'clamp' the maf around 10psi, because after a certain boost pressure, the 02-03 MAF's read the same voltage, so it's seeing the same amount of air flowing past it at 12lbs as it is 16lbs (theoretically). you can do the same with the 04+'s but there have been a LOT of problems, and honestly, i just don't feel like it's worth it.. sure the FIC has some cool little features, but it's nothing like UpRev.
how much boost are you running? stock motor or built? what size turbo? power goals? if you're doing a 'mild' turbo car (no built motor, sub 10lbs of boost, sub 350whp) then you probably won't want the headache that the FIC will bring with it. there's a reason why almost everyone is switching to UpRev.
UpRev is the way to go. you want to not have to worry about clamping the maf? put it in a 3inch intake pipe and problem solved. buy UpRev, drive to 2JRacing in Georgia, and profit like a motherfucker from having a sick tune on your car.