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    • Renntech Stage 1 M157 tune in a 2012 CLS63 AMG runs 11.3@125

      Low 11's with just a tune in warm 85 degree Florida weather? That is what a CLS63 AMG (non-Performance Package) with the Stage 1 Renntech M157 tune just did. The Stage I tune raises boost from the stock 14.5 psi to about the exact same amount as the performance package, 18.8 psi. The vehicle was completely stock except for Nitto NT05 drag radials. Density altitude was just under 2000 feet which means in winter conditions we can realistically expect high 10's out of tune only M157 cars.

      This vehicle belonged to a customer so hard launches / launch control were not used as the 1.8 60 foot validates. This just the beginning of M157 performance tuning and things are off to quite a great beginning.



      This article was originally published in forum thread: Renntech Stage 1 M157 tune in a 2012 CLS63 AMG runs 11.3@125 started by Sticky View original post
      Comments 49 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        As I said, I was speaking about ET, because @m54b25 mentioned ET. I don't really understand the relevance of responding with "trap would still differ" other than you just want this to be a pure "Renntech rules" thread. Otherwise, you wouldn't have felt the need to "correct" my conception of comparing two cars that were run in the 1/4 mile; one with DR's one one without.

        Am I wrong?
        I love when I see people using the mention system! A great feature that people need to start using more. Planning on expanding it with a similar twitter style #topic system in real time.

        I'm not trying to make it an anything rules thread simply pointing out to you that the Renntech tune is making more power than even the PP as you can tell by the trap on drag radials vs. a trap on street tires which has a higher % chance of being inflated due to the propensity for a poorer 60 foot. I think this is a valid point, has nothing to do with any particular company.

        I would have felt the need to point this out no matter what.
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I have consistently seen higher traps with better 60's in my own drag racing experience with my E92 which I might as well call limited as well. With drag radials... street tires spinning produced higher traps on my E46's.

        My point is that street tires are often capable of higher traps due to poor 60 foots inflating them and that a higher trap with a better 60 means it is a far more sound representation. Obviously drag radials are used far more for ET than trap as the goal is the 60 foot.
        I agree.
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I love when I see people using the mention system! A great feature that people need to start using more. Planning on expanding it with a similar twitter style #topic system in real time.

        I'm not trying to make it an anything rules thread simply pointing out to you that the Renntech tune is making more power than even the PP as you can tell by the trap on drag radials vs. a trap on street tires which has a higher % chance of being inflated due to the propensity for a poorer 60 foot. I think this is a valid point, has nothing to do with any particular company.

        I would have felt the need to point this out no matter what.
        Fair enough. I suppose I was wrong. I'm sorry.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        Fair enough. I suppose I was wrong. I'm sorry.
        I don't understand why you are apologizing, it's cool, no worries.
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't understand why you are apologizing, it's cool, no worries.
        I'm sensitive. haha
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        I'm sensitive. haha
        It's ok, I tend to get a rise out of people for some reason.
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It's ok, I tend to get a rise out of people for some reason.
        You don't say... Click here to enlarge
      1. BK63AMG's Avatar
        BK63AMG -
        Incredible...I can just see the jaws dropping on a test and tune night when all the JDM/American Muscle guys see a sedan running these numbers...
      1. DAGREEKNYC's Avatar
        DAGREEKNYC -
        Lets see if the new TT can help stop the AMG depreciation demon . What the phrase ?" The only thing faster than a AMG is their depreciation . Hence why i chose a used car this time . A Lease does make sense though but it was out of my car allowance parameters . Click here to enlargeClick here to enlargeClick here to enlargeClick here to enlargeClick here to enlarge