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    • 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. propain's Avatar
        propain -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I always wondered why he was so anti-propain.... I'm guessing it probably started when you proved him wrong with the high speed video a while back, but that was way too long ago bro. I can't imagine that that video would still be the reason Click here to enlarge
        The video of me beating him, the track results of me beating him, my 60-130 beating him. LOL He doesn't take loss well. Click here to enlarge

        I wish he would just come to the track and do some heads up runs with me on the tree. It would be so much fun!! Sadly, he has turned down every opportunity for that to happen.
      1. Dodger63's Avatar
        Dodger63 -
        Click here to enlarge Originally Posted by JonsC63AMG Click here to enlarge
        Your completely correct. My stock C63 dynoed 380ish whp. Trapped 114-115. After tune it dynoed 420-430whp. Trapped 118-119. So thats a 4mph increase in the 1/4 mile. Yes the dyno #s show..
        Was the dynos done on the same day, were the before and after track results on the same day?
      1. Dodger63's Avatar
        Dodger63 -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        As long as your opinion is against me Jon will always agree with you. LOL

        He is just mad because his best time in his "Factory Freak" is an 11.9 on drag radials. If he ran his car half as much as he ran his mouth he would actually learn to drive.

        All who know Jon know that will never happen. He is equally annoying in person as well. A very rare thing.
        +1,000,000,000,0000,000,000,000
      1. Sincity's Avatar
        Sincity -
        Luke saving for it? Get the f*ck out of here! That would be my f'ing excuse. Click here to enlarge
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Sincity Click here to enlarge
        Luke saving for it? Get the f*ck out of here! That would be my f'ing excuse. Click here to enlarge
        Click here to enlarge
      1. JRCART's Avatar
        JRCART -
        Luke, maybe they have Layaway. You can send them like $200 a week for the next month LMFAO
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by propain Click here to enlarge
        The point being made was his C63 with 451 crank HP Dynoed 380 whp.
        No, the point he was making was how his trap speed increase correlated to his dyno horsepower increase, you missed it.

        Click here to enlarge Originally Posted by propain Click here to enlarge
        It takes FAR less HP to increase your trap by 1 mph when you are trapping 114. Takes MUCH more when you are trapping 120. The faster you go the greater the resistance.
        It doesn't matter horsepower will show. The gains will not be uniform at all speeds we know that the point is horsepower always has to show no matter what if it is there vs. when it was not. It is the same for 1 horsepower and a billion horses. No one said it is exactly 1 MPH every 10 hp at all times it is a rough rule of thumb in drag racing that works surprisingly well.

        These cars have low enough drag coefficients that they are not being aerodynamically limited by drag in the 120's the way they are closing in on 200 mph which their designs (top end for the autobahn and auero design for MPG by default) allow them to do.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        Please remember that even though there are examples where the 10 whp gain on a dyno will show on the track, there are also examples where it won't show. It is the law of physics as well. As you get to higher speeds, the car may need 20 whp on the dyno to show 1 mph trap at the track.
        Mo, you are not encountering that level of aerodynamic resistance at these speeds with these vehicles designs. It really does not matter as in equal conditions more power will show, period, there is no way around it.

        Your example is worse weather or other mitigating factors. As has been stated many times assuming equal conditions if the car gained horses they will show. It is easier to see the difference on cars with less HP but no matter it is there.

        What I'm trying to tell you is 10 whp gained is not equal to a car with 10 less HP and 10 whp even on the E55 will give you almost a full MPH in trap especially if that is a gain through the whole curve and not just peak.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        The funny part is that for some reason you never said anything
        Actually, I did, back on page 2, post 28. I don't know why you missed it: http://www.benzboost.com/showthread....904#post223904

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The gain will not be uniform across all cars but the range presented with drop in airfilters is reasonably what one can expect.
        Makes me a bit surprised you were trying to present a point for so many pages without even having the correct info and now find my interpretation of the figures realistic. You seemed to a bit too quick to criticize which makes me wonder if you looked the graph over in depth at all since it was all right there.

        My point was they are doing things with the tuning here other tuners are not which was to help you explain why their tune has shown such nice results.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        Well, it turns out it was unrealistic because it wasn't tune only.
        It's ok, no big deal you misunderstood and nothing was unrealistic as you framed it incorrectly.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mramg1 Click here to enlarge
        BUT, IF one increases their RWHP, they should see an increase in MHP.
        Exactly, there is no way around it.

        How many guys slept through physics class...
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Makes me a bit surprised you were trying to present a point for so many pages without even having the correct info and now find my interpretation of the figures realistic. You seemed to a bit too quick to criticize which makes me wonder if you looked the graph over in depth at all since it was all right there.
        I never crticized... I presented a concern of the numbers based on what I know about the platform... and by the way, my original concern still stands: a +47 whp from tune only on E63 and CLS63 is a bit unrealistic. I'm honestly surprised you didn't say anything in your first reply or even all the back and forth on page 1 Click here to enlarge I would've thought your first response would have been something like this: "hey Mo... we're NOT talking about tune only here... we're talking tune + filters + possible charcoal delete.... so wake up and pay attention Click here to enlarge" I think you should state that the gains are NOT from tune-only in the first post or at least in the title so people don't make the same mistake.

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        My point was they are doing things with the tuning here other tuners are not which was to help you explain why their tune has shown such nice results.
        I'm not sure what you mean by "doing things with tuning that other tuners are not". In this particular case, if you factor in the air filters, the numbers indicate that their tune only would gain +34 whp. Jeremy from OE Tuning has gained +32 whp, Evotech has gained +36 whp, RENNtech gained 28 whp, MHP (TechTech) gained 33 whp, Evosport/Powerchip gained +30-35 whp, etc... There is no magic tuning stick here. The tune is strong and is probably very good, but I think (so far) the numbers are inline with other tuners (at least the decent ones).
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I never crticized... I presented a concern of the numbers based on what I know about the platform... and by the way, my original concern still stands: a +47 whp from tune only on E63 and CLS63 is a bit unrealistic.
        It isn't even applicable and once again I told you back on page 2 it was with drop in airfilters...

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I'm honestly surprised you didn't say anything in your first reply or even all the back and forth on page 1 I would've thought your first response would have been something like this: "hey Mo... we're NOT talking about tune only here... we're talking tune + filters + possible charcoal delete.... so wake up and pay attention
        The graph specified it in the very first post I made and then I reinforced it again, heh, what else was I supposed to do?

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I think you should state that the gains are NOT from tune-only in the first post or at least in the title so people don't make the same mistake.
        The graph spells it all out. If people don't even take time to look at it I can't be blamed for them.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I'm not sure what you mean by "doing things with tuning that other tuners are not".
        I mean they are accessing areas to tune others are not.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        In this particular case, if you factor in the air filters, the numbers indicate that their tune only would gain +34 whp. Jeremy from OE Tuning has gained +32 whp, Evotech has gained +36 whp, RENNtech gained 28 whp, MHP (TechTech) gained 33 whp, Evosport/Powerchip gained +30-35 whp, etc... There is no magic tuning stick here. The tune is strong and is probably very good, but I think (so far) the numbers are inline with other tuners (at least the decent ones).
        So now the numbers are realistic? Ok, excellent.
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Mo, you are not encountering that level of aerodynamic resistance at these speeds with these vehicles designs. It really does not matter as in equal conditions more power will show, period, there is no way around it.
        Your example is worse weather or other mitigating factors. As has been stated many times assuming equal conditions if the car gained horses they will show. It is easier to see the difference on cars with less HP but no matter it is there.
        What I'm trying to tell you is 10 whp gained is not equal to a car with 10 less HP and 10 whp even on the E55 will give you almost a full MPH in trap especially if that is a gain through the whole curve and not just peak.
        I think mramg1 put it best... we maybe saying the same thing differently: if no other factors intervene at all (and that's a big if in real life racing), we should see an increase in mph (although not necessarily 1 mph). It maybe 1 mph or 0.001 mph depending on what speeds we are talking about and what vehicle is being tested. All propain and I were saying was that it is definitely possible for a 10 whp gain on the dyno not to show up on the track. What makes this possible is a multitude of factors that are based on real world track conditions. A 10 whp gain may not show up at all on a car trapping 147 mph especially if the 10 whp gain was only at the top where the car is encounting maximum air resistance.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        if no other factors intervene at all (and that's a big if in real life racing), we should see an increase in mph (although not necessarily 1 mph).
        Yes, exactly my point.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        All propain and I were saying was that it is definitely possible for a 10 whp gain on the dyno not to show up on the track. What makes this possible is a multitude of factors that are based on real world track conditions.
        10 whp is really enough to show even on an E55 at its trap speeds assuming DA isn't canceling it out or some other factor outside of control. Sure there are situations where a supercharger may not show like if the guy runs the whole 1/4 mile in 1st gear. I can come up with all kinds of ridiculous situations like that. The point is horsepower gained will show, it has to. No matter the amount it just may be more difficult to pick up on at various degrees.
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It isn't even applicable and once again I told you back on page 2 it was with drop in airfilters...
        The statement actually stands for E63, CLS63, CLK63 BS, etc... but not for C63 or other heavily detuned variants of the M156.

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The graph specified it in the very first post I made and then I reinforced it again, heh, what else was I supposed to do?
        Bro, I'm not saying you did anything wrong. I'm just suggesting you list it in your first post because it is fairly easy to miss on the graph given it is not listed anywhere else.

        In fact, reading your first post in this thread, it almost implies that the gains are from the tune alone...

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        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
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I mean they are accessing areas to tune others are not.
        And despite that, the results are about the same as other tuners? Click here to enlarge

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        So now the numbers are realistic? Ok, excellent.
        Very realistic and in line with other top tuners Click here to enlarge
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, exactly my point.
        Thanks, that's what we've been saying Click here to enlarge

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        10 whp is really enough to show even on an E55 at its trap speeds assuming DA isn't canceling it out or some other factor outside of control. Sure there are situations where a supercharger may not show like if the guy runs the whole 1/4 mile in 1st gear. I can come up with all kinds of ridiculous situations like that. The point is horsepower gained will show, it has to. No matter the amount it just may be more difficult to pick up on at various degrees.
        On a regular E55 maybe, but my reference was to heavily modded E55s... we have tried this before on Shawn's car and didn't see the infamous 1 mph gain. Sometimes the IATs would get a little too high for the optimum range and the ECU would start pulling timing or the car would compensate for other factors... there are plenty of factors that happen all the time on the track - especially on high horsepower cars.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        The statement actually stands for E63, CLS63, CLK63 BS, etc... but not for C63 or other heavily detuned variants of the M156.
        Mo, your statement isn't applicable as you didn't even get it right. This tune as presented (that means just as it was presented on the graph, with drop in filters) is gaining 47 whp on the E63 as presented.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        Bro, I'm not saying you did anything wrong. I'm just suggesting you list it in your first post because it is fairly easy to miss on the graph given it is not listed anywhere else.

        In fact, reading your first post in this thread, it almost implies that the gains are from the tune alone...
        Of course not, it was just a misunderstanding but I'm pointing out you made a mistake. It isn't a big deal at all and there is no offense at all. I listed the graph in the very first post on the topic and posted again later as early as post number 28 when I saw you say the numbers were unrealistic that they were done with drop in filters...

        My first post never states tune only and I did not imply otherwise as I included the graph which should clarify anything for anyone who looks at it. I said it offers gains of 47 whp which it did on 91 octane with drop in airfilters as stated in the graph. You were working under a false assumption of tune only and missed it (twice), no big deal, it happens.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        And despite that, the results are about the same as other tuners?
        They seem to be in a realistic range but have we seen a larger gain on 91 octane on the E63 before/after?

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        Very realistic and in line with other top tuners
        Interesting shift in the thread and yes, definitely a thumbs up for this!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        On a regular E55 maybe, but my reference was to heavily modded E55s... we have tried this before on Shawn's car and didn't see the infamous 1 mph gain.
        It won't always correlate like that, which is why it is referred to as a rule of thumb. It's just an old drag racing "rule" if you want to call it that. I'm not familiar with Shawn but if he added horsepower he definitely gained something (maybe .2 mph, I don't know) as he had to.
      1. Exeenom's Avatar
        Exeenom -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Mo, your statement isn't applicable as you didn't even get it right. This tune as presented (that means just as it was presented on the graph, with drop in filters) is gaining 47 whp on the E63 as presented.
        The statement itself is still correct and applies to the E63 platform in general and that is what I was trying to point out despite it being off topic.

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Of course not, it was just a misunderstanding but I'm pointing out you made a mistake. It isn't a big deal at all and there is no offense at all. I listed the graph in the very first post on the topic and posted again later as early as post number 28 when I saw you say the numbers were unrealistic that they were done with drop in filters...
        I understand and that's why I was very surprised it took you that long to bring it up (almost 2.5 hours of back and forth) before it was mentioned. Knowing your forum trends, I would've thought you brought it up immediately in the first post since that was my whole point.

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        My first post never states tune only and I did not imply otherwise as I included the graph which should clarify anything for anyone who looks at it. I said it offers gains of 47 whp which it did on 91 octane with drop in airfilters as stated in the graph. You were working under a false assumption of tune only and missed it (twice), no big deal, it happens.
        Common bro, this is a quote from your first post, you don't think it indicates (even if slightly) that the gains are from the tune alone?

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        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
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Interesting shift in the thread and yes, definitely a thumbs up for this!
        Gains are gains.... and even a 30 whp gain is a good thing, and we have seen it from multiple tuners thus far. I'm glad it wasn't magic.

        By the way, I think we owe it to Weistec to remove all the argument out of their thread so it remains clean.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        The statement itself is still correct and applies to the E63 platform in general and that is what I was trying to point out.
        But it's irrelevant and not applicable?

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I understand and that's why I was very surprised it took you that long to bring it up (almost 2.5 hours of back and forth) before it was mentioned.
        It never crossed my mind that you wouldn't know that to begin with. That is pretty early in the thread and you missed that again as well as stating just a few posts ago you were surprised I did not mention anything when in fact I did showing how many pages went by before you noticed. Again, not a bit deal. I skim posts too at times as I have so much to read.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        Common bro, this is a quote from your first post, you don't think it indicates (even if slightly) that the gains are from the tune alone?
        How could it if the graph used in support states the gain is with filters clearly? I don't know how to be any more blatant than that. I only have so many characters to work with in a title so I will put up the most pertinent info (gains, price) and then the details follow as always. I would expect a graph to be pretty clear. All the information in question IS in the OP.

        They gained 47 whp exactly as shown in the graph, pretty simple and clear.

        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        By the way, I think we owe it to Weistec to remove all the argument out of their thread so it remains clean.
        I don't even consider it an argument I was just having a discussion with you which I quite appreciated. It was civilized and if Weistec has any issue they will ask me to move it somewhere else which I will gladly oblige.

        Another way to look at this is as showing tremendous interest in the product and bumping the discussion essentially created further interest. I do not see any negatives and simply a respectful discussion including clarifications that were necessary. So don't worry Mo, I don't think anything you or I stated has detracted in any way and if anything only fueled further interest. It's all good Click here to enlarge