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    • Weistec Audi 4.0 TFSI V8 turbos help push a C7 RS7 to 726 awhp with Johnson Tuning on 93 octane

      Weistec is well past their days of solely offering AMG upgrades and they continue to spread out. Here is a great example of their Audi work as Weistec is producing an Audi 4.0 TFSI V8 twin turbocharger upgrade.


      Here are the mods on this C7 RS7:

      APR Performance Intakes
      APR Performance Downpipes
      Weistec Upgraded Turbos

      With software tuning work from Johnson Tuning the RS7 hits an impressive 726 horsepower and 690 lb-ft of torque to all four wheels on a Mustang dynamometer no less:


      It is great that Weistec is competing in the Audi tuning sector. Expect more hardware to come.


      This article was originally published in forum thread: Weistec Audi 4.0 TFSI V8 turbos help push a C7 RS7 to 726 awhp with Johnson Tuning on 93 octane started by Sticky View original post
      Comments 8 Comments
      1. 135idct's Avatar
        135idct -
        can run this turbo on the s7?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 135idct Click here to enlarge
        can run this turbo on the s7?
        I would assume so but you would need a good tuner like with the RS7 to S7 turbo swaps.
      1. LQQKOUT's Avatar
        LQQKOUT -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I would assume so but you would need a good tuner like with the RS7 to S7 turbo swaps.
        Any info on the turbos? Size, HP capability, link to pricing...
        Same for tuning. Are they using HP Tuners or what software?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LQQKOUT Click here to enlarge
        Any info on the turbos? Size, HP capability, link to pricing...
        Same for tuning. Are they using HP Tuners or what software?
        Software is Johnson Tuning.

        I'm trying to get more details from @Weistec
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LQQKOUT Click here to enlarge
        Any info on the turbos? Size, HP capability, link to pricing...
        Same for tuning. Are they using HP Tuners or what software?
        Here: https://www.weistec.com/w3-turbo-upg...8-40-tfsi.html

        They can do it for the S6/S7 as well just not listed on the site.
      1. Weistec's Avatar
        Weistec -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Here: https://www.weistec.com/w3-turbo-upg...8-40-tfsi.html

        They can do it for the S6/S7 as well just not listed on the site.

        We can perform a W3 upgrade on all the S6/S7 and S8/S8+/RS7

        We leave the turbine wheel and exhaust housing unaltered for reliability and keeping turbo response as close to stock as possible. Because of that, upgrading a set of turbos from an S6/S7 would not get you turbos exactly the same as the ones on the car in this article.

        If the demand is there, we may begin work on W4 turbos (full replacement turbos).
      1. 135idct's Avatar
        135idct -
        Click here to enlarge Originally Posted by Weistec Click here to enlarge
        We can perform a W3 upgrade on all the S6/S7 and S8/S8+/RS7

        We leave the turbine wheel and exhaust housing unaltered for reliability and keeping turbo response as close to stock as possible. Because of that, upgrading a set of turbos from an S6/S7 would not get you turbos exactly the same as the ones on the car in this article.

        If the demand is there, we may begin work on W4 turbos (full replacement turbos).
        u will offer the tune?
      1. Weistec's Avatar
        Weistec -
        Click here to enlarge Originally Posted by 135idct Click here to enlarge
        u will offer the tune?
        We will be offering tuning for the turbos after we develop our own tune

        Currently for the Audi market we are working on 91, 93, E30, and E85 tunes for the C7/C7.5 S6/S7 (stock turbos)

        We have 91 and 93 tunes for the D4 S8 (stock turbos)