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Thread: headers

  1. #61
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    Default Re: headers

    Yeah the Grand Prix is not factory fast. There's a ton of aftermarket mods to make it go fast. In his case stock race this car, no way. The newer cars are so much more efficient and more stock power
    2004 Comp G. parting out, transferring parts to 2007
    2007 Grand Prix GT. Under construction Pacesetter headers, 1.8 roller rockers, Wizair CAI, HPTuned, 3.4pulley, TEP transmission, fuel pump and alt rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.

  2. #62
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    Default Re: headers

    how must will a tune help???
    can you remove the back o2????

  3. #63
    GXP Level Member GTPpower's Avatar
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    Default Re: headers

    At tune won't help it really go any faster. It'll shift different, but as far as making a difference in the 1/4 mile, not much.

    If you want to go fast with these cars, you need to increase boost. Everything else makes almost no difference.

    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    2005 F350 6.0 - studded, deleted, bulletproofed, tuned
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  4. #64
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    Default Re: headers

    Quote Originally Posted by vicg View Post
    how must will a tune help???
    can you remove the back o2????
    yes you can remove the rear o2 sensor but it will not make a difference either way. The code will have to be tuned out.
    2004 Comp G. parting out, transferring parts to 2007
    2007 Grand Prix GT. Under construction Pacesetter headers, 1.8 roller rockers, Wizair CAI, HPTuned, 3.4pulley, TEP transmission, fuel pump and alt rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.

  5. #65
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    Default Re: headers

    Have a custom pulley machined that has an outside diameter of 3.8" but a recess for the belt to ride in that is actually 3.4.

    Sent from my SAMSUNG-SM-G870A using Tapatalk
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower

  6. #66
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    Default Re: headers

    Quote Originally Posted by rickisrad View Post
    yes you can remove the rear o2 sensor but it will not make a difference either way. The code will have to be tuned out.
    Any 01+; just leave the rear o2 in there and have it tuned out. Makes your life a lot easier.
    1999 Chevrolet Silverado K1500 Classic Z71 - Intake/Gibson Exhaust - The Daily
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  7. #67
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    Default Re: headers

    on the 05 is there only 2 02s
    and tune the back out
    what eles

  8. #68
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: headers

    Yes.
    Sure.
    Nothing, there is nothing else you can do. Either remove 1000lb's or find a different car to go fast with. If you can't mod it to make it faster, it won't go any faster.

    SMGPFC Member #1

  9. #69
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    Default Re: headers

    this is a 99 buick gs 14.65 NHRA index
    well we have when from 15.00 et to a 14.31 no go fast parts
    first no exhaust
    then slicks 15"
    that was 14.63
    then no filter
    180 stat
    14.52
    then race gas
    no screen in mass air
    14.31 94
    know i am looking for a tuner

    my street car 05 pontiac gtp
    14.96 at 92

  10. #70
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    Default Re: headers

    Just set the rear to no report.

    All the headers all fit the same.

    I'm kinda lost at what is going on here, anyways.
    1999 Chevrolet Silverado K1500 Classic Z71 - Intake/Gibson Exhaust - The Daily
    2004 Chevrolet Corvette MRM A4 - AFE S2 Intake/TSP Catless LT's/3" ORX/C6 ZR1 Wheels/Exhaust Tips
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  11. #71
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    Default Re: headers

    trying to get the car to go faster

  12. #72
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: headers

    No MAF screen can hurt performance. They straighten the airflow over the MAF to give proper readings.

    Gut the car, it'll be faster.

    SMGPFC Member #1

  13. #73
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    Default Re: headers

    Even without a maf I could see the maf screen helping airflow if left in place

  14. #74
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    Default Re: headers

    No science for my belief on screen just my impression lol

  15. #75
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    Default Re: headers

    remove screen and pick up .2

  16. #76
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    Default Re: headers

    I'll have to see proof of that lol. That's sounds like driver error and placebo gains

  17. #77
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    Default Re: headers

    Spray it.

    That'll make it faster. Why is this four pages? lol
    1999 Chevrolet Silverado K1500 Classic Z71 - Intake/Gibson Exhaust - The Daily
    2004 Chevrolet Corvette MRM A4 - AFE S2 Intake/TSP Catless LT's/3" ORX/C6 ZR1 Wheels/Exhaust Tips
    Sold WBody's: '98 GT, '98 GTP, '00 GTP, '03 GTP, '05 GXP

  18. #78
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    Default Re: headers

    come to mason and dixon dragway and watch
    i will put in in the mass air and then take it out

  19. #79
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    Default Re: headers

    I could care less to drive to the eastern side of the country to watch a $1500 car do 14 second 1/4 mile passes.

    It doesn't make a difference. The track conditions and temperature are playing more of a part in things than that stupid MAF screen.
    1999 Chevrolet Silverado K1500 Classic Z71 - Intake/Gibson Exhaust - The Daily
    2004 Chevrolet Corvette MRM A4 - AFE S2 Intake/TSP Catless LT's/3" ORX/C6 ZR1 Wheels/Exhaust Tips
    Sold WBody's: '98 GT, '98 GTP, '00 GTP, '03 GTP, '05 GXP

  20. #80
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    Default Re: headers

    I love these threads. That someone, somehow or another, found something or figured something out that thousands of others who've come before on the 3800 platform missed!

    MAF screen is there for a reason, and the reason isn't to either quicken or slow the car down. It's there to channel air properly so the sensor can perform an accurate read. That's it... But if you think it helps by beng there or not, that you've found some UNICORN... You're just fooling yourself and regurgitating it makes you appear foolish as well. The only thing that may make a difference is if you "TUNED" the accurate read of the sensor. That said, I don't believe the sensor is reading more accurately absent the screen. Track doesn't prove a thing, it's palcebo effect!

    As mentioned above, there's more thall affect speed and that silly little screen...
    Overkill BBC Cam, YT 1.8 RR's, Rhodes Lifters, STGII Heads, GenV, Pacesetters, 3" Exh to Tips, TEP Trans. N*, ID 75# injectors/E85 coming soon

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