Thread: Twin engine gtp powered custom car runs 8s

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  1. #1 Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Enjoyed many 8.6 passes @ 162 mph. Pretty consistent.
    Upped the boost on the last pass and ran 8.5 but backed off at 900 feet. Data says it should have been 8.3x or 8.4 low.
    All in all pretty happy with the car. Track was too slippery to add any more boost. That's why I backed off on the last pass, I was spinning all four all the way down the track. The first 300 feet hooked hard but then it was all over.
    Almost clipped the beams at the end lol.
    Last edited by TwinV6GTP; 10-07-2015 at 10:07 PM.
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  2. #2 Re: Twin engine gtp powered custom car runs 8s 
    GT Level Member JamesIvey24's Avatar
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  3. #3 Re: Twin engine gtp powered custom car runs 8s 
    I break stuff selliott's Avatar
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    Nice!
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  4. #4 Re: Twin engine gtp powered custom car runs 8s 
    GXP Level Member coolone's Avatar
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    Awesome sauce!
    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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  5. #5 Re: Twin engine gtp powered custom car runs 8s 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Awesome job man! go for 7's and put ZZP to shame lol.


    Wait NVM. Just watched the video and it's not the GP lol. Sweet ride tho.
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  6. #6 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Zzp gp as awesome as it is would be a 9 sec car here. Its pretty useless to run fwd as our tracks have very little prep. 1800lbs 1000hp fwds sometimes have a hard time reaching 9s... i've seen a high 8 sec fwd and was a 1300hp civic with wheelie bars a pro setup.

    My goal is 7 sec 1/4 mile at 180mph at my local track. Car has the power but have a hard time hooking even with four slicks.

    My point is hard to compare results of very powerful cars at different track especially one that is of the highest caliber vs ours.
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  7. #7 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Ran 8.3 this weekend at 165mph at medium boost. Was going to crank it but the arp bolts on the meziere flexplat got loose on the rear engine. Had to call it quits on the 7 second goal for this year.
    Was confident to achieve the goal before the problem occured. The trans were working well. Got some great footage...

    for the front trans the special clutches and VB from tep trans did some wonders. We installed ourselves here at the shop. The shift isnveey crisp and has held over 700hp without failure.

    Rear 4t80e we made a custom cover for more fluid and prevent starvation at high G force. Worked awesome stable pressure.

    Last edited by TwinV6GTP; 10-07-2015 at 09:59 PM.
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  8. #8 Re: Twin engine gtp powered custom car runs 8s 
    Killa Bee Scottydoggs's Avatar
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    once its body is on maybe it wont light em up mid track no more lol thats silly fast.

    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. #9 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Yes more downforce and tires cool off and dont hook mid track.
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  10. #10 Re: Twin engine gtp powered custom car runs 8s 
    GrandPrix Junkie idrivejunk's Avatar
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    Holy smokes thats a wild ride! I bet you do start getting into aerodynamics country at 150+. Kudos to the driver, what a handful.
    All Grand Prix, all the time. 69 Model J, 99 GT & GTP coupes. All junk, haha.
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  11. #11 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    I'm the driver.
    You can say it can be a handful. Before I redid the alignment it was a little hairy to say the least.
    With the GTP wheels vs the Nascar Wheels (Narrower stance) it helped stability. On my last outing it spun like hell and drifted but it was completely controllable.
    Before it kinda had a mind of it's own.





    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  12. #12 Re: Twin engine gtp powered custom car runs 8s 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I'd like to see some motor shots, show off some of the custom handy work.

    SMGPFC Member #1
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  13. #13 Re: Twin engine gtp powered custom car runs 8s 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    I'd like to see some motor shots, show off some of the custom handy work.
    I Agree

    Sent from my LG G3
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  14. #14 Re: Twin engine gtp powered custom car runs 8s 
    DUI BABY Bio248's Avatar
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    this is about as awesome as it gets. home grown, pure track car. hell yes.
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  15. #15 Re: Twin engine gtp powered custom car runs 8s 
    Donating Users 16MustangVet's Avatar
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    Said it on the other forum ill say it here.

    4 wheel burnouts are for HERO's!!!!
    How I treat my car: wreck,fix, repeat.
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  16. #16 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Thanks for the nice comments. I know what to do next year for better results...more rpm 12 inch slicks better shocks fancier power management and of course the body for downforce...
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  17. #17 Re: Twin engine gtp powered custom car runs 8s 
    Schooner Tuner ADrugDealer's Avatar
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    I love it. Remember when so many were hating :P

    Miss it being in a GTP body though
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  18. #18 Re: Twin engine gtp powered custom car runs 8s 
    GTP Level Member TwinV6GTP's Avatar
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    Its a totally different car..

    The gtp was a unibody stock car with partially gutted interior.

    This one is a completely custom built car.
    2015 Custom Twin Engine Nascar style car with dual GTP 3.8 drivetrain, Front trans 4T65e-HD, Rear 4t80e trans 1/4 mile 8.38 @ 165mph
    2000 GP Twin Engine Twin TD Turbo kits. Stock engines stock trans(s) stock injectors stock MAFs 0-60mph 1.8 seconds 1/4 mile 9.72 @ 139 mph
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  19. #19 Re: Twin engine gtp powered custom car runs 8s 
    Schooner Tuner ADrugDealer's Avatar
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    Yeah I know, I just loved seeing the GTP frame fly :P
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  20. #20 Re: Twin engine gtp powered custom car runs 8s 
    GXP Level Member Turbocharged400sbc's Avatar
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    Enjoy the engine to diff brackets.
    I also tossed in some gen-u-ine usa made scotch for you to enjoy.
    Have fun!
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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