Thread: Top swap not making power! Help

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  1. #41 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Ok I'll have to check it out tomorrow when I go to the shop. I'll take some closer pics of everything. So these lines not being connected correctly can cause me to not get any power from the supercharger AND xp cam?
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  2. #42 Re: Top swap not making power! Help 
    Killa Bee Scottydoggs's Avatar
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    not sure, but either way it dont look right at all. and that alone can hurt performance.

    how does it idle, smooth? or just the normal cam chop?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #43 Re: Top swap not making power! Help 
    GTX Level Member 97gtsc's Avatar
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    It looks like the fpr is gettn vac from the wrong place?
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  4. #44 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Ok I see the T and the line going underneath the snout. I'll have to check it out tomorrow when I go to the shop and I'll take some pics. So these lines can cause me to not get any power out of the supercharger? And more so no power out of the xp cam?
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  5. #45 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Quote Originally Posted by scottydoggs View Post
    not sure, but either way it dont look right at all. and that alone can hurt performance.

    how does it idle, smooth? or just the normal cam chop?
    Cam chop
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  6. #46 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Quote Originally Posted by 97gtsc View Post
    It looks like the fpr is gettn vac from the wrong place?
    Can you explain please
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  7. #47 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Guy from the dyno just called and told me he put on a belt that was ½ inch smaller and rerouted a hose, not sure which one and blocked off the vaccum side of the blower and now has 7lbs of boost with a little spike of 9lbs. 16 degrees of timing. Putting down 240ish HP and 230ish torque. Progress but still low power. Since the vacuum side Is blocked, does that mean the BBV is bad?
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  8. #48 Re: Top swap not making power! Help 
    Killa Bee Scottydoggs's Avatar
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    heres some pics of the vac lines, i just redid mine today.



    this was the stock line. the left side went to the T under the sc snout.


    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #49 Re: Top swap not making power! Help 
    I live here. Slick2500's Avatar
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    Ok stop guys he has a 97 blower with the vac tree so he does not need that line going under the snout to the T. And from looking at the pic the vac tree isnt even hooked up to anything, that might be your problem.

    97-98 with vac tree



    98+ without vac tree
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  10. #50 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    I'll take some pics a little later when I get home. The guy from the dyno shop changed some of the hoses and bypassed some things. Im at school right now. I just picked it up from the dyno shop.
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  11. #51 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    [QUOTE=slick2500;919100]Ok stop guys he has a 97 blower with the vac tree so he does not need that line going under the snout to the T. And from looking at the pic the vac tree isnt even hooked up to anything, that might be your problem.

    97-98 with vac tree



    98+ without vac tree


    Is the vac tree on top of the supercharger that has 3 spouts coming out of it?
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  12. #52 Re: Top swap not making power! Help 
    I live here. Slick2500's Avatar
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    Yeah its in the spot on the diagram that says MANIF PRESS, that is the vac tree.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  13. #53 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    The red hose is connected to the BBV. Black hose is connected to the MAP sensor that is in the pic.
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  14. #54 Re: Top swap not making power! Help 
    GTP Level Member 01gpgt01's Avatar
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    The BBV should not be seeing boost. The BBV should be hooked up to a vac line between the tb and the rotors(like the top of the blower outlets)
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

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  15. #55 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    The dyno shop plugged this part.


    The hose coming off the fuel rail is going to the throttle body.


    THis is the By-pass solenoid right? nothing connected and no wiring for it.


    Nothing is connected to which i believe is the by pass solenoid. and nothing connected to the back of the BBV which is seen in the pic as well.


    This connector is cracked that is going into the throttle body, which one of the hoses coming from it is going to the the fuel rail in the pic above.
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  16. #56 Re: Top swap not making power! Help 
    Killa Bee Scottydoggs's Avatar
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    thats all pretty much not done right. at all.

    pic of your vac tree, if this is a 97 sc. i dont see it.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  17. #57 Re: Top swap not making power! Help 
    Moderator DanPrixGTP's Avatar
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    That vac routing is wrong. Ive already spotted a few mistakes
    '97 GTP - Stage 2 Heads, 90# Springs, 1.9 Harland Sharp Rockers, Gen V, 3.0, Intake, N* TB, LQ4, FSIC, 10.5mm Wires, Poly Mounts, SLP Headers, Borla Exaust, Built Trans - SOLD*

    '08 G8 GT - 6.7L 408CI Stroker, 239/254 Cam, Fast Intake, 102mm TB, CAI, Full Exhaust.





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  18. #58 Re: Top swap not making power! Help 
    GT Level Member Steven Monteith's Avatar
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    Quote Originally Posted by 01gpgt01 View Post
    The BBV should not be seeing boost. The BBV should be hooked up to a vac line between the tb and the rotors(like the top of the blower outlets)
    I was comparing mine to the diagram and I realize where everything needs to go, but my problem is that I don't have an electrical piece to go into the bypass solenoid. Will that matter?
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  19. #59 Re: Top swap not making power! Help 
    Killa Bee Scottydoggs's Avatar
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    you need to wire something up i believe, with any luck Bill will stop by and comment on it.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  20. #60 Re: Top swap not making power! Help 
    Moderator DanPrixGTP's Avatar
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    Looks like your also missing a vac line that goes onto the BBV if im not mistaking.
    '97 GTP - Stage 2 Heads, 90# Springs, 1.9 Harland Sharp Rockers, Gen V, 3.0, Intake, N* TB, LQ4, FSIC, 10.5mm Wires, Poly Mounts, SLP Headers, Borla Exaust, Built Trans - SOLD*

    '08 G8 GT - 6.7L 408CI Stroker, 239/254 Cam, Fast Intake, 102mm TB, CAI, Full Exhaust.





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