Close

    • Weistec W.3 AMG GT S M178 turbocharger upgrade tops 700 wheel horsepower on 91 octane + methanol injection

      The Weistec W.3 M178 turbocharger upgrade has been on the market since late 2015. Originally, Weistec displayed the upgrade on 91 octane pump fuel without any supplemental fueling modifications. That resulted in 650 rear wheel horsepower and 557 lb-ft of torque at the wheels.


      Well, with some water/meth in the mix Weistec is able to increase output on 91 octane pump fuel to 708 horsepower and 620 lb-ft of torque at the wheels:


      That is at 24 psi of boost. Yes, there is likely more in it but the transmission becomes a question mark at this point.

      Also, notice power keeps climbing toward the 7500 rpm redline.

      Great power and torque here especially for AMG GT owners stuck with California's 91 octane pump gas who want more power.


      This article was originally published in forum thread: Weistec W.3 AMG GT S M178 turbocharger upgrade tops 700 wheel horsepower on 91 octane + methanol injection started by Sticky View original post
      Comments 2 Comments
      1. emericr's Avatar
        emericr -
        Looks like great stuff unfortunately Weistec is no longer a reliable source for that kind of stuff.
        Inform yourself on other forums if you are not aware of it.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by emericr Click here to enlarge
        Looks like great stuff unfortunately Weistec is no longer a reliable source for that kind of stuff.
        Inform yourself on other forums if you are not aware of it.
        No longer a reliable source? Oh, because you say so.