F1A procharger question!
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F1A procharger question! Hey guys...Ok so I have a shop working on my car it is a 408 low comp with 225cc AFR heads a custom cam and a F1A procharger with FMIC... So we had a pulley on there and we made 6lbs of boost ..We called up Bob over at EPP and had him send us a pully to make around 16lbs of boost with the setup I had and tried to dyno it and made the same amount of boost...The shop told me there are no leaks and the bypass valve they installed seems to be working .. The belt does not seem to be slipping ..They opened up the procharger and said everything looked fine .... I am not 100% sure with what all they did and what size pully they have on there now and I live a hour from the shop so cant keep running up there to check things out ..But they have had my car for over a month trying to find out why it wont make boost so I am just at the point to where I need to ask someone if they have any idea on why it wouldnt be making boost... Sorry for not giving many details I would just like to get some more ideas on things to tell them to check.. Thanx guys or any help you can give 
I agree, I would use the ProCharger race valve. Also, I'd try making a pull without the air filter to see if the filter is not too restrictive. We use a larger filter than the one that is supplied from ProCharger when shooting for a lot of boost. Bob
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From: boostville
boost leak test first like suggested. not just "looking" at the clamps to see if they are on correctly, you need to pressurize the system and listen for leaks.
i'd also try no filter like mentioned above. those are all cheap and easy things to try before you have to get invasive.
i'd also try no filter like mentioned above. those are all cheap and easy things to try before you have to get invasive.
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So today they got it to 13psi and belt ripped apart and they were putting on a new belt when I was talking to him and I told him about the filter might be cause flow problems, waiting for call back and see what happened with the filter totally off and the new belt on
Last edited by Marz; Jul 28, 2008 at 02:59 PM.
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Talked to him about 5 mins ago and said they are taking the adjustable rockerarms off and putting on a set of stock ones cause the boost is not holding past 4k RPM just drops off , He thinks the are getting stuck open and just blowing all the boost out the exhaust ..
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Well I was with him today while he talked to ya Bob hope we can find out if this other intake works Monday thanx for the help and if think of any other reasons it might not be making the boost let me know
Not a problem, the Fast 90mm intake has been a problem for a lot of boosted cars. I hope that the intake takes care of it for you. Bob
