• Weistec Engineering now offering Stage I Naturally Aspirated M156/63 AMG tune - +47 wheel horsepower on 91 octane, $990

      We thought this eventually might come but not so soon. Weistec has decided to sell a naturally aspirated tune for the M156 V8 which offers gains of 47 wheel horsepower on 91 octane, impressive. In addition to the horsepower gain torque is upped by 32 wheel, the speed limiter is removed, and the throttle response is optimized. The price is a very reasonable $990 which also is credited toward a supercharger purchase should one decide they want more power.




      Key Features:

      • +47 Wheel Horsepower
      • +32 Wheel Torque
      • Eliminate Top Speed Limiter
      • Increased Throttle Response
      • Optimized Fuel and Spark
      • Credit towards Stage 1/1+ Supercharger Systems


      To order: http://weistec.com/m156nas1.html
      This article was originally published in forum thread: Weistec Engineering now offering Stage I Naturally Aspirated M156/63 AMG tune - +47 wheel horsepower on 91 octane, $990 started by Sticky View original post
      Comments 400 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Is this thread really about Weistec or about some people $#@!ing and having a cok peeing contest over whether a 10whp change can be noticed on the dyno track.

        Move to another thread already.
        I don't see the harm in letting people discuss whatever they want to. If they want to talk forever then let them talk forever. It's a forum, that is what it is for.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I want to make it clear that Weistec has a grasp of this ECU that others do not so you will see some things previously thought to be impossible from them
        Shhhhhh, quiet, don't let the cat out of the bag just yet. The AMG tuning world is going to be turned upside down in about a month or so. You will see tuners like Renntech, Kleeman and Brabus bowing down to Weistec as they sit slack jawed "saying how'd they do that?".
      1. mramg1's Avatar
        mramg1 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge

        Real world conditions can't be controlled because we don't have control of the weather but we can adjust as the NHRA already does based on a simple mathematical formula. You are familiar with DA correction. Nothing will prevent a 10 whp gain from showing in the same conditions. On the same day at the track (without mechanical failure which should be obvious) you will see a difference in those conditions adding 10 whp. Subtract 10 whp and it's the same. You may not see a difference from a different day in different conditions which of course is obvious but the horses are still having an impact as without them in those same conditions the vehicle will be weaker. There is no way this can not happen as already proven although it should have been obvious especially for seasoned drag racers.
        I am still at a tizzy how some can NOT get over the fact that physics work whether they like them or not. Before I start, since some have asked, I am an engineer and believe in the laws of physics, until someone proves them wrong. So with that in mind, F=MA as I have stated before so IF you increase force, aka F, one HAS TO increase A. By the way, A = acceleration if you did not know.

        Keep in mind that M = mass which is a constant here as we are talking about the same car, aka same weight.

        Some here are REALLY getting old on this matter trying to dissect the individual parts. Let us ALL take a break and wait for Luke to get his tune, and let the chips fall were they may be.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mramg1 Click here to enlarge
        still at a tizzy how some can NOT get over the fact that physics work whether they like them or not.
        Because some just prefer to disagree with me for the sake of disagreeing. It's physics, there is no refuting it, these are established laws by minds far greater than our own.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mramg1 Click here to enlarge
        Let us ALL take a break and wait for Luke to get his tune, and let the chips fall were they may be.
        He can't get it fast enough. I'm tempted to go get it for him to just put a rest to this.

        Also, his tune is going to show different results I can tell you that now AND his baseline will be higher due to exhaust differences. Just want to get this out of the way in advance.
      1. BAD430BENZ's Avatar
        BAD430BENZ -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Shhhhhh, quiet, don't let the cat out of the bag just yet. The AMG tuning world is going to be turned upside down in about a month or so. You will see tuners like Renntech, Kleeman and Brabus bowing down to Weistec as they sit slack jawed "saying how'd they do that?".
        i heard Click here to enlarge
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        He can't get it fast enough. I'm tempted to go get it for him to just put a rest to this.

        Also, his tune is going to show different results I can tell you that now AND his baseline will be higher due to exhaust differences. Just want to get this out of the way in advance.
        I'll prob get down there next week sometime. Need to touch base with Steve first...I'll keep you guys posted.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        I'll prob get down there next week sometime. Need to touch base with Steve first...I'll keep you guys posted.
        No rush here and it is a little bit of a drive. Just going to be nice to have additional results to show.
      1. Dodger63's Avatar
        Dodger63 -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        I know Ahmad text me! I was drooling. Are you going? S&K has the MT's so thats no issue for me. Im just trying to finish up a few things and I should be a go. You?
        I'm going, not fully prepaird but havmr seen weather like this so what the hell
      1. Dodger63's Avatar
        Dodger63 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        No rush here and it is a little bit of a drive. Just going to be nice to have additional results to show.
        Lzh already stated he prob will not get to a track so with that being said. I for one have heard all the rumors and understand the weistec is 2 maybe 6 steps in front of anyone else on the planet with there abilities,
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Dodger63 Click here to enlarge
        Lzh already stated he prob will not get to a track so with that being said. I for one have heard all the rumors and understand the weistec is 2 maybe 6 steps in front of anyone else on the planet with there abilities,
        He will take it to the strip at least once, he came out for my private rental in Fontana last April. He tracks his car all the time on road courses, he's more of a road race guy so I'm sure he can give us feedback on lap time improvements at Willow Springs Raceway.
      1. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Because some just prefer to disagree with me for the sake of disagreeing. It's physics, there is no refuting it, these are established laws by minds far greater than our own.
        No.... That all in your mind because you always think you are an authority on everything.

        The problem is you are not using all the laws of physics. While power increases in a linear fashion, drag increases exponentially with speed. The more speed, the more drag. The more drag the more power needed to overcome those resistances.

        At a certain level you will not be able to detect 10 whp on the track. You seem to think no matter what speed or HP that adding the power will show on the track. This is incorrect. I agree if you use finer tools to detect the results you should pickup something, however small.

        The point has been and will continue to be however that the gain will not always show on the track using the methods of detection at the track.


      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        No.... That all in your mind because you always think you are an authority on everything.

        The problem is you are not using all the laws of physics. While power increases in a linear fashion, drag increases exponentially with speed. The more speed, the more drag. The more drag the more power needed to overcome those resistances.

        At a certain level you will not be able to detect 10 whp on the track. You seem to think no matter what speed or HP that adding the power will show on the track. This is incorrect. I agree if you use finer tools to detect the results you should pickup something, however small.

        The point has been and will continue to be however that the gain will not always show on the track using the methods of detection at the track.

        And the other laws you have to remember are not to (1) eat yellow snow and (2) piss into the wind.
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Earl, if you're lucky maybe Weistec found out a way to give you and I another 10rwhp during the 3 monthes our cars will be out there....could you imagine if they found 20rwhp? LOL
        You can post your own results as whatever you post, people will pick it apart and say...that is not right because of something they read in a magazine (or they will all of a sudden become a physics professor again because of an article they read in a porn magazine.
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        You can post your own results as whatever you post, people will pick it apart and say...that is not right because of something they read in a magazine (or they will all of a sudden become a physics professor again because of an article they read in a porn magazine.
        Hey man don't knock the articles in Playboy Click here to enlarge
        And btw...I've seen the Lohan photos Click here to enlarge
      1. BAD430BENZ's Avatar
        BAD430BENZ -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        Hey man don't knock the articles in Playboy Click here to enlarge
        And btw...I've seen the Lohan photos Click here to enlarge
        Click here to enlarge that has to be a scary sight
      1. mramg1's Avatar
        mramg1 -
        Are you really this limiteds in mental capacity propain, methane, etc, etc, or do you just refues to accept the laws of physics. At this point with you, I must admit I am confused.

        PS: Areodynamics really don't mean a thing untill around 150MPH. I will post a grapgh if it will help you.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Dodger63 Click here to enlarge
        Lzh already stated he prob will not get to a track so with that being said. I for one have heard all the rumors and understand the weistec is 2 maybe 6 steps in front of anyone else on the planet with there abilities,
        We can't expect every owner to want to drag race. This will just be another set of dyno results and as the tune is adopted by a wider audience I think we will see more track numbers.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        No.... That all in your mind because you always think you are an authority on everything.

        The problem is you are not using all the laws of physics. While power increases in a linear fashion, drag increases exponentially with speed. The more speed, the more drag. The more drag the more power needed to overcome those resistances.

        At a certain level you will not be able to detect 10 whp on the track. You seem to think no matter what speed or HP that adding the power will show on the track. This is incorrect. I agree if you use finer tools to detect the results you should pickup something, however small.

        The point has been and will continue to be however that the gain will not always show on the track using the methods of detection at the track.


        Nobody ever claimed there was not drag or any other multitude of factors that do not have an effect. The point was a horsepower increase will show no matter what as when you change HP in the equation you also change the result. Resistance increases but not to a level that horsepower gains don't ever appear as they have to. What is not clear about this?

        My point is additional horsepower will always make an appreciable difference whether it is to a level you deem it detectable or not. Period.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mramg1 Click here to enlarge
        Are you really this limiteds in mental capacity propain, methane, etc, etc, or do you just refues to accept the laws of physics. At this point with you, I must admit I am confused.

        PS: Areodynamics really don't mean a thing untill around 150MPH. I will post a grapgh if it will help you.
        Why waste your breath or in this case bandwith? He could just simply say he did not understand the topic completely and that is that. But around we will go and maybe on this page the laws of physics will change.