Thread: GXP vs a Comp G

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  1. #1 GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    Not much of an interesting story but I'm in a local grand prix club, and the other night we were all out messing around and another guy and I finally got a chance to line up the two fastest cars in the group. From the line the GXP just continued to pull. We ran up to about 110 and I had him by 2 1/2 car lengths or so. He used tap shift and I did not. Both cars are stock. Might have been a little closer if he wasn't using tap shift imo.

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  2. #2 Re: GXP vs a Comp G 
    GrandPrix Junkie spazzz's Avatar
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    I own a comp g, so ouch.
    good race.
    Google says its 2 hours and 19 minutes to Freeport. You can race Iceman6669.....here ya go
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  3. #3 Re: GXP vs a Comp G 
    The Blue One blueguy's Avatar
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    TapShift makes the car slower.

    Proven.

    Should have ran him and told the silly guy to leave it in drive.

    Good kill though.
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  4. #4 Re: GXP vs a Comp G 
    GTP Level Member lsxftw's Avatar
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    niceeee


    Ive been medicating with burnouts and alcohol
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  5. #5 Re: GXP vs a Comp G 
    GXP Level Member 91parkave's Avatar
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    Quote Originally Posted by blueguy View Post
    TapShift makes the car slower.

    Proven.

    Should have ran him and told the silly guy to leave it in drive.

    Good kill though.
    What? please point me to that thread
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  6. #6 Re: GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    Lol I won't be racing him anytime soon. And Freeport is beautiful btw. I've been there a few times...

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  7. #7 Re: GXP vs a Comp G 
    The Boss Iceman6669's Avatar
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    Way too long of a drive just to race... But in other news I REALLY like this guys headlights... :-)
    97 GTP Sold-prolly rusted away by now
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  8. #8 Re: GXP vs a Comp G 
    GTP Level Member AjL227's Avatar
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    Quote Originally Posted by 91parkave View Post
    What? please point me to that thread
    TapShift has different electronic settings/restrictions such as lower line pressure and enhanced torque management/restriction active to protect the components from hardware failure.
    The unit may likely end up shifting slower because of it. TapShift is really just for looks when it comes to the 4T65, not very useful especially on a factory transmission/valve body.
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  9. #9 Re: GXP vs a Comp G 
    I live here. MoarkatsINmuhtrailer's Avatar
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    If the car doesn't cost over 40k new.. Then tap shift is useless
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  10. #10 Re: GXP vs a Comp G 
    I live here. MoarkatsINmuhtrailer's Avatar
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    Quote Originally Posted by MoarkatsINmuhtrailer View Post
    If the car doesn't cost over 40k new.. Then tap shift is useless
    Lemme correct that even more..

    If it's not a lambo or ferrari... Then it is useless.
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  11. #11 Re: GXP vs a Comp G 
    I live here. MoarkatsINmuhtrailer's Avatar
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    It's a ****ing grand prix... Your tapshift is useless no matter how big and bad you think a Gxp is.
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  12. #12 Re: GXP vs a Comp G 
    GXP Level Member 91parkave's Avatar
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    Quote Originally Posted by AjL227 View Post
    TapShift has different electronic settings/restrictions such as lower line pressure and enhanced torque management/restriction active to protect the components from hardware failure.
    The unit may likely end up shifting slower because of it. TapShift is really just for looks when it comes to the 4T65, not very useful especially on a factory transmission/valve body.
    I went through again looking at factory cal's i see very similar tables between d and tapshift shift pressures tables and modifiers.however they vary through 04-08 calibrations from being better in D and some edge out in Tapshift. All barley noticeable.
    My point is TAP shift on a factory cal cant hurt your performance enough to make that kind of statement. it seems to me there were other issues at play.
    The way i have my setup is in tapshift mode zero tourqe mangment .100 on shift times line pressure increased 25% from regular shift pressures etc..... essentially "performance mode".
    Last edited by 91parkave; 06-03-2013 at 03:03 AM.
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  13. #13 Re: GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    Umm if you read the post the guy driving the comp g used tap shift, not I...

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  14. #14 Re: GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    Quote Originally Posted by MoarkatsINmuhtrailer View Post
    It's a ****ing grand prix... Your tapshift is useless no matter how big and bad you think a Gxp is.
    ^^^^

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  15. #15 Re: GXP vs a Comp G 
    GTX Level Member Sudden's Avatar
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    Both cars stock?
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
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  16. #16 Re: GXP vs a Comp G 
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    Quote Originally Posted by MoarkatsINmuhtrailer View Post
    If the car doesn't cost over 40k new.. Then tap shift is useless
    Good thing you corrected yourself.

    Volvo made that mistake.

    However they did actually raise the line pressure in "manual" mode.
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  17. #17 Re: GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    Yep both are stock. Except for some visual mods

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  18. #18 Re: GXP vs a Comp G 
    GTX Level Member Sudden's Avatar
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    I guess that was the expected outcome then. Um, a local club with no modded cars?

    Quote Originally Posted by mrlogic1234 View Post
    Yep both are stock. Except for some visual mods

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    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
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  19. #19 Re: GXP vs a Comp G 
    GTP Level Member mrlogic1234's Avatar
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    We just started the club about a month ago... No performance mods yet, but most of the members have aesthetic stuff sounds and such. Just this past weekend we had 16 cars for a ride out and that's not even everyone... Not bad for a month old club imo.

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  20. #20 Re: GXP vs a Comp G 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by 91parkave View Post
    What? please point me to that thread
    Common sense > any thread.

    You can't shift faster than a computer, nor get the exact same shift points each time either.

    Only thing Tap Shift is good for is holding a gear when: roll racing or tracking the car.
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