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    • GIAC Tuned 997.2 Turbo S takes on all comers in a 1/3 mile roll on including a VT3 M3, GTR, E63 AMG, F10 M5, MP4-12C, Supra, etc.

      This is a compilation video showing multiple runs at a recent 1/3 mile roll on event. Due to the event being 1/3 mile the shift speed of dual clutch cars definitely favor them in such a scenario. Shift speed is the advantage of the transmission and it shows. This 997.2 Turbo is equipped with a GIAC tune and an aftermarket intake plenum. Wheel horsepower is approximately 530 horsepower on a Mustang dyno. This GIAC tune has powered 997.2 Turbos into the 9's in the 1/4 mile.


      There are several runs here so let's analyze them one by one.

      Run 1 - ESS VT3 supercharged M3 ~690 whp

      The Porsche gets a bit of a jump and due to its all wheel drive traction advantage takes an early lead. It holds off the VT3 through the run although it starts inching back. Regardless, this M3 despite being a built motor car only managed 135 in the 1/4 mile which a GIAC tuned 997.2 Turbo S is also capable of. The top end advantage goes to the M3 but the runs are not long enough for it to show.

      Run 2 - Rematch with the VT3 M3

      Closer start this time between the two cars and the 911 turbo takes just under a car length lead. The VT3 starts to pull up top again able to edge enough to take the win this time around. This is pretty much exactly how it should go down. The longer the race the more it favors the M3 with the shorter the race favoring the 911 Turbo.

      Run 3 - Bolt on tuned GTR with ~600 whp

      The 911 turbo again gets a jump. Seems to be a bit of a pattern. It opens up a lead that the GTR can not close by the end of the run where it is inching back in. It definitely has more power but loses due to the start.

      Run 4- MP4-12C Spyder

      The Spyder is a little heavier than the coupe but it really is a marginal difference. Jump from the 911 Turbo yet again and the MP4-12C does not not have enough top end to close the gap.

      Run 5 - 996 Turbo MT with bolt ons and GIAC tune ~500 whp

      No contest. Eaten alive.

      Run 6 - 6MT 997.1 Turbo with ~600 whp

      Another jump but it does not matter. PDK wins this race easily.

      Run 7 - 997.1 Switzer built with 6MT and 800+ whp. Fastest car of the event.

      997.1 does not allow the 997.2 to jump on it. Simply too big of a power disparity here, game over.

      Run 8 - Gintani Stage II supercharged DCT M3

      M3 just looks like it lets off.

      Run 9 - Renntech tuned M157 E63 644 whp

      Pretty good start on this one but PDK wins the race despite the power disparity. The E63's weight does it no favors. A longer run would likely have the E63 coming back up top but it is what it is.

      Run 10 - 458 Italia stock with passenger

      It just gets flat out pulled, no contest.

      Run 11 - SRT8 300 with 850 whp

      Horsepower just manages to win this one up top but this goes to show how down low a dual clutch can minimize a large HP advantage significantly.

      Run 12 - Supra with 1002 whp

      Takes a second for the Supra to get going but once it does it just pulls away up top. Win for big HP.

      Run 13 - BMS Tuning F10 M5 ~640 whp

      Slight early start for the 911 Turbo. The M5's DCT pays dividends though and it stays with the Turbo and begins to inch up on the top end. Race is over before the M5 can pull past. Strong showing for the F10.

      Run 14 - 997.1 Turbo with full bolt ons, upgraded 68mm turbos, and meth injection ~650 all wheel horsepower

      A jump for the 997.2 but the horsepower of the 997.1 Turbo takes over fairly quickly. Too big of a power disparity between the two.

      Run 15 - 880whp Supra

      Lag, lag, lag, spool, win.


      Definitely a nice compilation here showing various outcomes and scenarios. What one should take away is that dual clutch transmissions in shorter distance roll ons where more shifting takes place are dominant. Additionally, such conditions favor a 997.2 Turbo as the lower rolling speed benefits all wheel drive traction. Overall, several good runs showing it is not always the most horsepower that wins and that it takes a large HP difference to overcome a starting deficit in a short roll on.


      This article was originally published in forum thread: GIAC Tuned 997.2 Turbo S takes on all comers in a 1/3 mile roll on including a VT3 M3, GTR, E63 AMG, F10 M5, MP4-12C, Supra, etc. started by Sticky View original post
      Comments 33 Comments
      1. Group.america's Avatar
        Group.america -
        Run 13 - BMW Tuning F10 M5 ~640 whp

        That blew me away... that the very heavy assed M5 kept up .......... it really is quite a beast and with further tuning by the aftermarket crowd is going to produce some startling results IMHO
      1. Group.america's Avatar
        Group.america -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Terry's 135i would lose and the E46 would run into the problems the higher HP cars had. This is too short of a run at too low a speed. I wouldn't bother with 1/3 mile.

        Opps thought it was longer than 1/3rd

        MY BAD Click here to enlarge
      1. rs97's Avatar
        rs97 -
        Click here to enlarge If my simple math is correct, that's a lot of f$%&*^g power. I can't wait to see that. Will it be ready for airstrip attack?
      1. m54b25's Avatar
        m54b25 -
        2013 E63 AMG
        BMC Air Filters
        Renntech Intermediate Tune
        624whp SAE Dynojet

        Vs

        2011 Porsche 997.2 Turbo S
        GIAC Tune
        IPD Intake Plenum
        530whp AWD Mustang Dyno

        In response to:
        Run 9 - Renntech tuned M157 E63 644 whp (Correction 624whp)

        Pretty good start on this one but PDK wins(?) the race despite the power disparity. The E63's weight does it no favors. A longer run would likely have the E63 coming back up top but it is what it is. ???

      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by m54b25 Click here to enlarge
        2013 E63 AMG
        BMC Air Filters
        Renntech Intermediate Tune
        624whp SAE Dynojet

        Vs

        2011 Porsche 997.2 Turbo S
        GIAC Tune
        IPD Intake Plenum
        530whp AWD Mustang Dyno

        In response to:
        Run 9 - Renntech tuned M157 E63 644 whp (Correction 624whp)

        Pretty good start on this one but PDK wins(?) the race despite the power disparity. The E63's weight does it no favors. A longer run would likely have the E63 coming back up top but it is what it is. ???

        http://www.youtube.com/watch?v=7nCdr0rAiJU
        This run was left out of the compilation. Better start for the E63 and it pulls up top.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by m54b25 Click here to enlarge
        2013 E63 AMG
        BMC Air Filters
        Renntech Intermediate Tune
        624whp SAE Dynojet

        Vs

        2011 Porsche 997.2 Turbo S
        GIAC Tune
        IPD Intake Plenum
        530whp AWD Mustang Dyno

        In response to:
        Run 9 - Renntech tuned M157 E63 644 whp (Correction 624whp)

        Pretty good start on this one but PDK wins(?) the race despite the power disparity. The E63's weight does it no favors. A longer run would likely have the E63 coming back up top but it is what it is. ???

        http://www.youtube.com/watch?v=7nCdr0rAiJU
        http://www.germanboost.com/content.p...63-AMG-run-two
      1. 328ijunkie's Avatar
        328ijunkie -
        I was surprised how well the F10 did, looked like it was coming back
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 328ijunkie Click here to enlarge
        I was surprised how well the F10 did, looked like it was coming back
        It would have pulled past eventually.
      1. SexiPYm3's Avatar
        SexiPYm3 -
        Nice set of runs... The Porsche most definitely held its own. Think I'll be leaving bmw sooner than later for a 911 turbo. If only the turbo s came in a 6 speed.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SexiPYm3 Click here to enlarge
        Nice set of runs... The Porsche most definitely held its own. Think I'll be leaving bmw sooner than later for a 911 turbo. If only the turbo s came in a 6 speed.
        If it was a 6-speed it wouldn't be as fast.
      1. SexiPYm3's Avatar
        SexiPYm3 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        If it was a 6-speed it wouldn't be as fast.
        You're correct... But it still would be faster than a non s. I don't care for the pdk. I have plenty of seat time with bmw dct and while its fast, it just isn't as rewarding to me. I'll sacrifice a little speed for a 6 speed.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SexiPYm3 Click here to enlarge
        You're correct... But it still would be faster than a non s. I don't care for the pdk. I have plenty of seat time with bmw dct and while its fast, it just isn't as rewarding to me. I'll sacrifice a little speed for a 6 speed.
        Might as well just get a 997.1 Turbo 6-speed then.
      1. SexiPYm3's Avatar
        SexiPYm3 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Might as well just get a 997.1 Turbo 6-speed then.
        I considered the 997.1 turbo and just keep the M3 and go all out kill mode