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    • Inflated numbers? Vivid Racing claims 407 wheel horsepower for exhaust and VR ECU tuned E9X M3 S65 on a Mustang dyno

      The Mustang dynamometer is generally known as reading lower than a Dynojet. That is, if you don't mess with the settings. Numbers can be fairly easily manipulated on the Mustang. Now, an E9X M3 stock shows a baseline of 317 wheel horsepower on the Active Autowerke Mustang dyno. With full bolt ons including a tune and catless X-pipe, Active Autowerke shows 345 wheel horsepower on their dyno on 93 octane fuel. Vivid Racing shows 379 wheel horsepower with exhaust only on 91 octane and no ECU tune.


      A disparity of 34 wheel wheel horsepower before the tune? Vivid Racing then claims 407 wheel horsepower after adding their VR ECU tune. That means a difference of 62 wheel horsepower between what Active Autowerke is showing and Vivid Racing is showing on a Mustang dyno. So what is going on here?

      Vivid Racing definitely has their dyno reading high. Why is this? Because it exaggerates the gains and the peak figures making them look more impressive to generate sales. BimmerBoost hates when people exaggerate the numbers for sales figures. Active Autowerke could do the same but they choose not to. Vivid should at least tell us they set it higher.

      Now, there is no doubt that Vivid Engineering and their VR Tune program is getting nice gains out of the S65 V8 with a tune. It is 2014 now and people have been getting large gains out of the S65 V8 for 5 years now. They are trying to enter the market and it seems they are doing so by throwing out some huge dyno figures to get attention.

      One should not expect 407 wheel horsepower, certainly not a Mustang dyno on 91 octane, from just a tune and exhaust. It is not a realistic representation of the horsepower. Even on a Dynojet this car would not be making over 400 wheel. Cracking 400 wheel on the S65 V8 naturally aspirated is possible but it will take some aggressive tuning and additional mods such as an underdrive pulley.

      Just another lesson in all dynos not being equal and why you should put a premium on third party results (even though sometimes those are thinly veiled marketing as well):


      Vivid Racing Graph:


      Active Autowerke Graph:


      This article was originally published in forum thread: Inflated numbers? Vivid Racing claims 407 wheel horsepower for exhaust and VR ECU tuned E9X M3 S65 on a Mustang dyno started by Sticky View original post
      Comments 33 Comments
      1. Sticky's Avatar
        Sticky -
        ^ incorrect
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        ^ incorrect
        Edit -- Realize now I wrote 400 in that previous post..... Fail. 400 WHP (like I said in post #10 ) can be done on a stock motor with 93 octane, quality bolt-ons & a custom tune. 400 WHP+ with a stroker should be cake.
      1. s65e90's Avatar
        s65e90 -
        Hmmm. On a dynojet this would be like 430 WHP... I'm not buying into either.

        Always was a little suspect of VR; especially the cheapy looking Agency Power parts they sell for big $$$
      1. Kommodore's Avatar
        Kommodore -
        Vivid Racing is just made up of sketchy sales people with an appetite for the gullible.
      1. benzy89's Avatar
        benzy89 -
        Well they're keeping HPF "alive", so it'll be interesting to see where that goes
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Vivid Racing, Great company to deal with. I have had no issues in the past 5-6 years dealing with them.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Well they're keeping HPF "alive", so it'll be interesting to see where that goes
        All they are doing is using the HPF name to sell the same parts they already sell. The HPF website is just the Vivid website. They aren't doing any real development.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Kommodore Click here to enlarge
        Vivid Racing is just made up of sketchy sales people with an appetite for the gullible.
        It appears you are spot on. They seem to care more about sales than accuracy or quality.
      1. Irishace's Avatar
        Irishace -
        Shade central.
      1. Sticky's Avatar
        Sticky -
        Why didn't they just make it say 1000 whp then if it doesn't matter?

        We all know why they are cooking up the higher numbers. We all know why other tuners don't have to stoop to that.

        You should start with calibrating your dyno Vivid before you try to sell tunes or else you look like a joke/amateurs.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Irishace Click here to enlarge
        Shade central.
        They deleted it. Wonder why? Click here to enlarge
      1. Sered's Avatar
        Sered -
        Looks like they made even more power than these guys (Dinan and RD Sport pt 2, can barely get past 400whp with engines costing > $25k)
        http://www.m3post.com/forums/showthread.php?t=947650

        LOL forever.