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    • Tial 68mm VTG upgraded Porsche 991.1 Turbo S with meth injection and Cobb tuning runs 9.7@139 in the 1/4 mile

      We have a pretty good idea at this point as to what modified VTG turbos get you on the Porsche 991.1 and 991.2 Turbo platforms. You can expect to run in that ~140 trap range when going to 68mm units.


      With a solid launch as indicated by the 1.4X 60 foot this 991.1 Turbo S ran 9.794 @ 139.46:


      Going beyond this level in a 991.1 or 991.2 Turbo will require a supplemental port injection fuel system with a controller (usually a Syvecs standalone) and a built transmission as well as built motor.

      You will also have to ditch the VTG turbochargers but this opens up turbo options capable of propelling the car into the ~160 trap range.

      The Tial 68mm VTG package is perfect for those who do want to go beyond the factory motor, transmission, and fuel system.

      This article was originally published in forum thread: Tial 68mm VTG upgraded Porsche 991.1 Turbo S with meth injection and Cobb tuning runs 9.7@139 in the 1/4 mile started by Sticky View original post