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    • 601 horsepower naturally aspirated M156 / C63 AMG package from Wimmer Racing - 19,900 Euros

      Wimmer Racing has released an upgrade package for the C63 which takes the M156 V8 to 601 horsepower. They achieve this figure through a head and cam package. In addition, they modify the headers, intake, and the rest of the exhaust along with a tune. This is a pretty expensive package and there are no dynos or performance numbers to support the claims.











      This article was originally published in forum thread: 601 horsepower naturally aspirated M156 / C63 AMG package from Wimmer Racing - 19,900 Euros started by Sticky View original post
      Comments 32 Comments
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I think we can take Mercedes at their word.

        It's a little different when Mercedes claims 451 horsepower and Randomforumdouche claims 800 whp because his cousin tuned his car and added a new air filter.
        Like I said, I was trying to find a common ground where I could agree with his point. In the case of Mercedes we just take their word.
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        Like I said, I was trying to find a common ground where I could agree with his point. In the case of Mercedes we just take their word.
        I understand your point about Mercedes. However, with all the strict regulations nowadays, especially for car companies, they would NOT be able to lie about horsepower output, as their engines are constantly being tested and they have to verify claims to the different agencies. That's why car companies started becoming more specific with advertised figures, such as, 451 hp or 337 hp instead of 450 hp or 335 hp.

        I do agree with you that as customers, in general, we should be critical and careful on what to accept as truth when the information is coming directly from the company that is selling the product Click here to enlarge
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I understand your point about Mercedes. However, with all the strict regulations nowadays, especially for car companies, they would NOT be able to lie about horsepower output, as their engines are constantly being tested and they have to verify claims to the different agencies. That's why car companies started becoming more specific with advertised figures, such as, 451 hp or 337 hp instead of 450 hp or 335 hp.

        I do agree with you that as customers, in general, we should be critical and careful on what to accept as truth when the information is coming directly from the company that is selling the product Click here to enlarge
        What about the horsepower output being greater than advertised like the P31? Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        What about the horsepower output being greater than advertised like the P31? Click here to enlarge
        Nothing wrong with over delivering.. underrating always beats exaggerating.
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Nothing wrong with over delivering.. underrating always beats exaggerating.
        Obviously. Click here to enlarge
      1. JonsC63AMG's Avatar
        JonsC63AMG -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Nothing wrong with over delivering.. underrating always beats exaggerating.
        Remember the 1996 Stang Cobra where they overrated their hp to 320?. Found out it was really 305hp. Disappointed many Stang fans.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JonsC63AMG Click here to enlarge
        Remember the 1996 Stang Cobra where they overrated their hp to 320?. Found out it was really 305hp. Disappointed many Stang fans.
        It was underrated you mean. And yes, that was due to an error in the exhaust manufacturing. I would say Ford more than made up for it with the '03 Cobra.

        Also, it was the 1999 Mustang Cobra.
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It was underrated you mean. And yes, that was due to an error in the exhaust manufacturing. I would say Ford more than made up for it with the '03 Cobra.

        Also, it was the 1999 Mustang Cobra.
        No I think he meant overrated. If ford claimed 320 and it was really only 305 they overrated their HP.

        Im trying to remember if this was the case with the 1996. I vaguely remember this.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        No I think he meant overrated. If ford claimed 320 and it was really only 305 they overrated their HP.
        It's early and I haven't had my coffee Click here to enlarge

        Click here to enlarge Originally Posted by propain Click here to enlarge
        Im trying to remember if this was the case with the 1996. I vaguely remember this.
        Maybe it happened twice but I distinctly remember it being with the 1999. They revised the intake/exhaust and got the 320 hp rating. It was the 99 that got the 320 hp rating and the upgraded 4.6 modular V8 with 4 valve heads and 320 hp over the 305 hp 1996.
      1. JonsC63AMG's Avatar
        JonsC63AMG -
        It might of been the 1999 Cobra.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JonsC63AMG Click here to enlarge
        It might of been the 1999 Cobra.
        That's because some new Cobras were found NOT to be making the 320 horsepower they are advertised as having. After a wave of owner complaints caused a stir, Mustang engineers were forced to spend much of the summer investigating possible reasons for the less-than-potent '99 motors, and how to remedy the situation. Meanwhile, in an effort to get a grip on the problem, SVT slapped a temporary hold on retail delivery of the remaining '99 Cobras left in dealer stock until they can all be inspected and fixed.
        http://www.insideline.com/ford/musta...nvertible.html
      1. JonsC63AMG's Avatar
        JonsC63AMG -
        There you go! Click here to enlarge