Thread: 4.7PSI of Boost with 3.4 Set up

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  1. #1 4.7PSI of Boost with 3.4 Set up 
    Specialist Walter US Army Spartan GL's Avatar
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    got my Aeroforce the other day and it shows 4.7PST at WOT

    the 3.4 set up is supposed to get alot more then that I replaced my all my Vac lines, all new Gaskets

    Didnt find a vac leak what else could it be?

    XPZ, Alum heads,150#, I/C, GEN V mps 3.0, N* TB CAI K&N fully built trans, JE pistons, L32 rods, Comp lifters, PRJ Fuel rails, 65# Injectors, elec pump, MSD wires, MSD coils, Alum control arms, AGX, vogtland, GMPP sway bars, rear trailing arms
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  2. #2 Re: 4.7PSI of Boost with 3.4 Set up 
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    boost bypass valve?
    03 GTP - 13.8 @ 100 2.160ft
    99 GTP - DD
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  3. #3 Re: 4.7PSI of Boost with 3.4 Set up 
    GXP Level Member rocafella2032's Avatar
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    You shouldn't be getting ALOT more psi, but I agree you should be getting more.
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  4. #4 Re: 4.7PSI of Boost with 3.4 Set up 
    Specialist Walter US Army Spartan GL's Avatar
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    isnt like 9-10PSI normal with a Similar setup to mine?

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    XPZ, Alum heads,150#, I/C, GEN V mps 3.0, N* TB CAI K&N fully built trans, JE pistons, L32 rods, Comp lifters, PRJ Fuel rails, 65# Injectors, elec pump, MSD wires, MSD coils, Alum control arms, AGX, vogtland, GMPP sway bars, rear trailing arms
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  5. #5 Re: 4.7PSI of Boost with 3.4 Set up 
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    9-10 is about right but BBV or vac leak. go, have fun.
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  6. #6 Re: 4.7PSI of Boost with 3.4 Set up 
    EX GTP OWNER shawngtp's Avatar
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    Quote Originally Posted by matt5112 View Post
    9-10 is about right but BBV or vac leak. go, have fun.

    THIS^^^^
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  7. #7 Re: 4.7PSI of Boost with 3.4 Set up 
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    Quote Originally Posted by shawngtp View Post
    THIS^^^^
    x2 that. ...and fuel trims at +16.4 would indicate vac leak.
    02 GTP 13.6 @ 100mph - SOLD
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  8. #8 Re: 4.7PSI of Boost with 3.4 Set up 
    Specialist Walter US Army Spartan GL's Avatar
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    figured as much bbv

    XPZ, Alum heads,150#, I/C, GEN V mps 3.0, N* TB CAI K&N fully built trans, JE pistons, L32 rods, Comp lifters, PRJ Fuel rails, 65# Injectors, elec pump, MSD wires, MSD coils, Alum control arms, AGX, vogtland, GMPP sway bars, rear trailing arms
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  9. #9 Re: 4.7PSI of Boost with 3.4 Set up 
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    It would have to be a HUGE vac leak. Its a the BBV
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

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  10. #10 Re: 4.7PSI of Boost with 3.4 Set up 
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    Quote Originally Posted by 01gpgt01 View Post
    It would have to be a HUGE vac leak. Its a the BBV
    Good call on the BBV after he said it was the BBV
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  11. #11 Re: 4.7PSI of Boost with 3.4 Set up 
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    I think it might be a BBV.....
    I'd check Ed Morad first, if he doesn't have one he could probably get one for you in a short time. Other than that, you might try a junkyard where you got all your badges from, just be cautious....

    "**** bills. You can live in your car but you can't race your house" -dsmuts
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  12. #12 Re: 4.7PSI of Boost with 3.4 Set up 
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    Just bring it over and ill fix it. It is not the bbv, i checked its operation when i put it back on.
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  13. #13 Re: 4.7PSI of Boost with 3.4 Set up 
    Specialist Walter US Army Spartan GL's Avatar
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    Quote Originally Posted by minichopper6hp View Post
    Just bring it over and ill fix it. It is not the bbv, i checked its operation when i put it back on.
    then what is it? if not the BBV

    XPZ, Alum heads,150#, I/C, GEN V mps 3.0, N* TB CAI K&N fully built trans, JE pistons, L32 rods, Comp lifters, PRJ Fuel rails, 65# Injectors, elec pump, MSD wires, MSD coils, Alum control arms, AGX, vogtland, GMPP sway bars, rear trailing arms
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  14. #14 Re: 4.7PSI of Boost with 3.4 Set up 
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    Thats why you need to bring it over so i can look at it. Im not going to play guessing games.
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  15. #15 Re: 4.7PSI of Boost with 3.4 Set up 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by minichopper6hp View Post
    Im not going to play guessing games.
    You should...those are fun.
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  16. #16 Re: 4.7PSI of Boost with 3.4 Set up 
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    My guess is it will take at least 6 beers to fix it. Better just grab him a case.
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  17. #17 Re: 4.7PSI of Boost with 3.4 Set up 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by FoSHO99 View Post
    My guess is it will take at least 6 CASES to fix it. Better just grab him a case.
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  18. #18 Re: 4.7PSI of Boost with 3.4 Set up 
    SE Level Member 4boostin's Avatar
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    After installing my Aeroforce, it was showing less boost than the factory boost gauge. I had to set the altitude in my Aeroforce before it was accurate. You probably already did that...but just in case you didn't, you may want to do that.

    98GS - 3" DP & Cat back, 9" K&N CIA in FW, Plog, 3.5", 180* Canned tune. 14.65 at 96.9mph, w/2.37 60ft. on G-Timer @ 4500 elev. @ 51*.
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  19. #19 Re: 4.7PSI of Boost with 3.4 Set up 
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    I dont drink beer...
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  20. #20 Re: 4.7PSI of Boost with 3.4 Set up 
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    That only changes your HP and torque readings on the aeroforce.

    Boost is read from the PCM which reads from the MAP sensor. Can't really change that.
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