We love the 5.0-liter V10 from BMW. Besides having an affinity for any engine with more than eight cylinders, the torque-happy five-liter sounds like straight glory and is happy to induce all sorts of tail-wagging fun from the outgoing M5. That doesn't mean there's not room for improvement, however. The minds at Dinan have taken the time to put the engine through the standard performance ringer by boring and stroking the block to a full 5.8-liters, dropping a set of performance cams into the head, bolting on a dry-sump oil system and wrapping the whole project up with a set of racing exhaust headers.

What did all of that effort net? How does 720 naturally-aspirated horsepower at 8,300 rpm and 497 pound-feet of torque grab you? The engine was specifically designed to be used in the Riley Technologies 2011 MKXXV track day car. We just like seeing it punish the engine stand and light its exhaust purple. Hit the jump to watch and hear for yourself.



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    • 1 Second Ago
  • 52 Comments
      Joe
      • 3 Years Ago
      Wow, 124 hp/l with no forced induction. Mighty impressive!
      Rob
      • 3 Years Ago
      Dang, that's a good chunk of NA horsepower
      KaiserWilhelm
      • 3 Years Ago
      LUDICROUS SPEED!
      Ben Marvin
      • 3 Years Ago
      Can anyone explain why it's glowing purple?
        anoymous2515
        • 3 Years Ago
        @Ben Marvin
        It's not glowing purple. It just looks that way because of the camera's IR sensor.
      FriskyDingo
      • 3 Years Ago
      I love that freaking engine. It, and the S54 I6 are my favorite BMW engines. Beside the S70 of the McLaren F1, anyways. And forget putting this in that track car, this gem needs to go into an E30 Coupe!!
      MrWhopee
      • 3 Years Ago
      Must've been some exotic alloy. I've never heard of a metal that would glow purple when heated.
        Florg
        • 3 Years Ago
        @MrWhopee
        Or a cheapo camera with a bad/no IR filter.
        stuck in 90s
        • 3 Years Ago
        @MrWhopee
        The White balance setup on the camera is way off... ... or shoud i say, the white balance was chosen incorrectly and on purpose to give this purple hue (instead of the normal orange that is should be) to attract attention... ever taken a photo of fire with a point n shoot camera? same issue there ;) It's all a visual effect to give it more of a wow factor... Great engine noneless, being a bmw fan all my life :)
        You guy
        • 3 Years Ago
        @MrWhopee
        I'm gonna go with Magnesium.
      • 3 Years Ago
      [blocked]
        Jason Allen
        • 3 Years Ago
        We want both ICE and EV's in an awesome future. Sometimes combined. Put the masses in electrics and ICE for certain niches and sports and enthusiasts. Shades of gray.
        Krishan Mistry
        • 3 Years Ago
        Primitive electric troll. It has no future. You must love them negative votes. Keeps you trolls nice and full of internet failiure. Funny that you ALWAYS have something to complain about, even if the car was EV, you would say the battery tech in X ev is really poor and EV's would get 300 mile range and be faster if they had a mythical battery pack and were fiberglass pods.
      daveinf
      • 3 Years Ago
      Once inventors create a way to build small power batteries, piston engines will be a thing of the past. The fastest car is one with a electric motor. So fast it would pull too many G's to drive...they have to dumb it down so the pilot won't black out.
        Azazel
        • 3 Years Ago
        @daveinf
        The problem is no one says, "That's one mean sounding electric motor." The electric motor does not elicit the same passionate response as a proper internal combustion engine. In fact, when an electric car is moving at any decent speed, you can't even hear the motor. I imagine when electric cars become the majority, the first thing people will do is figure out how make them not sound like vacuums and make them sound more like the engine in this video.
        haelphadreous
        • 3 Years Ago
        @daveinf
        Really? I didn't know anything had been built that was faster than Sammy Millers, Vanishing Point rocket car, which managed 0 to 386 mph in 3.58 seconds, I guess electric cars are getting pretty fast.
      cashsixeight
      • 3 Years Ago
      That is so photoshopped. Real BMWs have inline engines. :P
      mikemaj82
      • 3 Years Ago
      that torque number is unimpressive, and that's what counts. vin diesel said so.
        Ak74
        • 3 Years Ago
        @mikemaj82
        Because it's NA
          Frisky_Dingo
          • 3 Years Ago
          @Ak74
          Again with random incorrect information. It has low torque because it's NA?? Where did hou hear that?? There are tons of NA engines with big torque numbers. Torque is a byproduct of engine tuning and capacity/dimension more than anything else. Engines that rev high typically make relatively low torque numbers due to their large bore/short stroke dimensions. Engines w/ narrow bores/long strokes will generally have lower redlines w/ high torque figures. That's why exotics like Ferraris and such usually have modest torque figures, and the typical.American muscle car makes lots of low end torque.
          Ak74
          • 3 Years Ago
          @Ak74
          Ok how about it's NA and 5.8 L? Can you sleep now?
        Krishan Mistry
        • 3 Years Ago
        @mikemaj82
        In terms of going fast, hp wins. Torque is what you feel shove you into your seat in every gear, but multiply with RPM's, factor in gearing, and there's a reason why F1 cars decide to rev to 18,000 rpm and make 750hp if the only thing that mattered were their paltry amount of torque, 200ish. Seeing that you quoted Vin Diesel, tongue in cheek or not, you dont fully understand either power or torque. Ok, let's say two cars (A and B) have the same power, but Car B has twice as much torque and weighs same. If they were geared identically, and started at the same speed, B would dust A. But then B runs out of revs sooner and has to shift into the next gear, reducing its torque to the wheels to equal or below that of A, while A is screaming along in the meat of its powerband high in the RPM's. B would still feel faster, but A wouldnt be much slower. Now imagine A had 2/3 the torque (not 1/2), and 1.5 times the power. A would get a bigger powerband advantage and outrun B. If you gear down A so it tops each gear at the same RPM as B, it would in fact make much more torque to the wheels where it matters, and smoke the low revving B. This is also why you shift well past the torque peak, because you want as much torque TO THE WHEELS in the next gear. So power is what counts in the big picture, but that being said, power is just torque with RPM's considered as well. If speed is not a concern but haulling tons of weight, then get something with tons of low end torque like a turbodiesel. But a big turbodiesel engine would fail in a lightweight sports car because it would make paltry horsepower in comparison. And on a side note, how does 497 lbft not sound impressive? Only if you must compare it to explicitly the 720hp created as a result. But show me any other car with 86 lbft per litre NA. The only road car I can think of is a 458, and 398lbft out of a stock road legal 4.5L V8 sounds too good to be true. I think a Porsche GT3 RS is close as well. And a muscle car would be lucky to get close to 400lbft from 5.8L, forget 500.
      Danielle
      • 3 Years Ago
      I'll match your 720hp, raise you a good bit of torque and toss in more glow and some flames... out of half the liters and cylinders http://youtu.be/df-yU-g6ljE
      daveinf
      • 3 Years Ago
      You'd think they could fix that squeak!
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