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    • 9-second drop top - Tial 68mm VTG turbos power a 991.1 Turbo S convertible into the 9's

      Every 9-second Porsche 991 Turbo is a coupe. There is a reason for that. The coupe is lighter, stiffer, and coupe owners tend to put a premium on performance. Well, the coupes are now joined in the 9's by this 911 Turbo cabriolet that managed a 9.600 1/4 mile pass.


      Yes, 9.600:


      The trap speed is a healthy 144.69 miles per hour which is spectacular for the 3600+ pound cabriolet.

      As for the modifications the car has a full exhaust, Cobb tune, and was on Toyo R888R tires. The transmission software is also tuned by Cobb. Race gas also, obviously.

      Congrats to those involved in building the quickest and fastest 991 Turbo Cabriolet out there.

      This article was originally published in forum thread: 9-second drop top - Tial 68mm VTG turbos power a 991.1 Turbo S convertible into the 9's started by Sticky View original post
      Comments 13 Comments
      1. Bowser330's Avatar
        Bowser330 -
        9.6? good lord that's quick, 150lbs heaver than the TTS coupe too, which means coupe should be able to pull a 9.49....


        Turbos = $5,500
        Cobb ECU+TCU = $3,000
        Exhaust (DPs) = $1000
        Tires, Race Gas, Other = $1500
        Total = $11K
      1. flsupraguy's Avatar
        flsupraguy -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        9.6? good lord that's quick, 150lbs heaver than the TTS coupe too, which means coupe should be able to pull a 9.49....


        Turbos = $5,500
        Cobb ECU+TCU = $3,000
        Exhaust (DPs) = $1000
        Tires, Race Gas, Other = $1500
        Total = $11K
        Probably closer to 20k all in with labor but impressive none the less.
      1. flsupraguy's Avatar
        flsupraguy -
        I assume this was on 100 octane?
      1. Sticky2's Avatar
        Sticky2 -
        Click here to enlarge Originally Posted by flsupraguy Click here to enlarge
        I assume this was on 100 octane?
        Yep.
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by flsupraguy Click here to enlarge
        Probably closer to 20k all in with labor but impressive none the less.
        perhaps for someone who chooses to not get their hands dirty. From what i've seen the turbos and exhaust seem fairly accessible from under the back of the car.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        9.6? good lord that's quick, 150lbs heaver than the TTS coupe too, which means coupe should be able to pull a 9.49....


        Turbos = $5,500
        Cobb ECU+TCU = $3,000
        Exhaust (DPs) = $1000
        Tires, Race Gas, Other = $1500
        Total = $11K
        Just want to point out on the 991.2 Carrera or 3.0 models it's cheaper although obviously isn't hitting the same performance (yet).

        Turbos = $3995
        Software = $1995
        Exhaust (cat bypass) = $1k or less
        Tires/Wheels = $1200
        Total: ~8000

        You don't even need new tires/wheels if you are AWD.
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Just want to point out on the 991.2 Carrera or 3.0 models it's cheaper although obviously isn't hitting the same performance (yet).

        Turbos = $3995
        Software = $1995
        Exhaust (cat bypass) = $1k or less
        Tires/Wheels = $1200
        Total: ~8000

        You don't even need new tires/wheels if you are AWD.
        I agree, the potential in the 991.2 is incredible, just need the aftermarket tuning market to mature a bit more.

        like your new post about 3bar map sensor, just an example of something that will help tremendously.

        the TTS came out in 2014 so its got a 3yr headstart ahead of the 991.2 (2017).
      1. flsupraguy's Avatar
        flsupraguy -
        Do you know what year the 991 was that received these mods. Seems you could either buy a 2014 991 and do these mods or buy a 2017 turbo s and yield similiar results with a tune.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by flsupraguy Click here to enlarge
        Do you know what year the 991 was that received these mods. Seems you could either buy a 2014 991 and do these mods or buy a 2017 turbo s and yield similiar results with a tune.
        The 991.2 Turbo S has larger VTG's but they aren't 68mm so even with a tune it won't match this.
      1. 8SecDD's Avatar
        8SecDD -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        9.6? good lord that's quick, 150lbs heaver than the TTS coupe too, which means coupe should be able to pull a 9.49....


        Turbos = $5,500
        Cobb ECU+TCU = $3,000
        Exhaust (DPs) = $1000
        Tires, Race Gas, Other = $1500
        Total = $11K
        Coupe did. Actually ran a 9.47 Click here to enlarge
      1. 8SecDD's Avatar
        8SecDD -
        9.60 for a Cabriolet is crazy fast. Congratulations!
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by 8SecDD Click here to enlarge
        Coupe did. Actually ran a 9.47 Click here to enlarge
        Jesus Christ, a friend at work just got a TTS, already had the bolt ons before he got the car....he's now hunting for a reliable turbo upgrade
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        he's now hunting for a reliable turbo upgrade
        There really is only one choice.