Dinan strokes the M5/M6's V10 to 5.7-liters, 628 hp
The hefty price tag and somewhat limited availability of the BMW M5 and M6 ensures that only a select few get behind the wheel of a 500 HP masterpiece. That kind of power, coupled with the razor-sharp performance of a precision-tuned BMW suspension make for a driving experience rivaled by few automobiles on our planet. No matter how great these M-tuned Bimmers are, however, there are some who strive for more. That's why companies like Dinan are around to transform the sublime into the ridiculous.
If you have a passion for power and an additional $40,000 in your budget, Dinan can transform your "ordinary" M5/M6 into a race-ready athlete with the heart of the champion. For your 40-large, Dinan will take the 5.0L V10 that powers the "standard" M5/M6 and bore and stroke it to 5.7 liters. The end result is a legitimate road beast that cranks out 628 hp and 482 lb-ft. The additional hp under the bonnet of the Dinan M's still revs freely to 8100 RPM, and much of the torque is available as low as 3000 RPM. To keep Dinan's 5.7L flamethrower breathing freely, the engine tuner added high flow Intake/air mass meter assemblies, high flow throttle bodies, free flow mufflers and a racing exhaust. Sure the extra $40k can almost buy you a spare 335i, but if you want to make your M5/M6 even more exclusive, Dinan's solution is as good as any.
Thanks for the tip, slblack.
[Source: Dinan]
Reader Comments (Page 1 of 2)
3seriesisking 4:07PM (12/24/2007)
Nice mods. But that's a crazy heavy price hike. Yikes!
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Russell 5:54PM (12/24/2007)
Too many pistons.
Jeff 4:19PM (12/24/2007)
At what point does someone drop in a fire-breathing demon tuned 427? Honestly, paying 40k to get horsepower by means of displacement, at what point do you realise that you can get a lighter/faster/cheeper American engine for half the price?
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BKadalur 4:30PM (12/24/2007)
the only american engine close to that that is in the same price range is the ls9.
and that is a supercharged 7 liter.
and the i seriously doubt that is lighter than this...
Mark 4:35PM (12/24/2007)
I agree with you, but then it wouldn't be German. So what a LS7 can stroked and blown to make those numbers for half the price. ;)
Dave 4:40PM (12/24/2007)
BKadalur-
FWIW-
The LS9 is 6.2 liters. They decreased the bore so the cylinder walls would be thicker/stronger.
http://www.autoblog.com/2007/11/26/leaked-corvette-zr1-6-2l-ls9-v8-sees-light-of-day/
BKadalur 5:13PM (12/24/2007)
good catch dave. thx, i think i missed that.
Justin 5:21PM (12/24/2007)
Hey BKadalur, I've heard a few places the ls7 (7L) and ls9 (6.2) ARE lighter than the m5 5L v10. Granted it might lose a little weight from the lost metal of boring it out, but the larger displacement GM v8's definitely aren't heavier by any significant margin, and might still be lighter actually...
Comparing displacement alone ISN'T a valid comparison for OHC vs OHV
ambientFLIER 8:17PM (12/24/2007)
Why is a domestic V8 even brought up in this conversation? Will a 427 rev past 8000 rpm and have crazy top-end and smoothness? Get out of here with those damn things. They might make power, but they aren't as good as a BMW-built engine, and would look and sound stupid in an M5.
why not the LS2/LS7? 9:17PM (12/24/2007)
The LS7 is lighter than the M5 V8 (the 4.5L one that preceded this V10). You can bet your sweet ass the LS7 and LS9 are far lighter than this beast of an engine.
I agree they would look out of place in a BMW (just as they do in an RX7), but on the other hand, they might make it perform better (as they do in an RX7).
Nick 11:56PM (12/24/2007)
"Will a 427 rev past 8000 rpm and have crazy top-end"
Certainly will when built to do so. I've seen a built C5R block-based (427) rev over 8,000 and produce over 800 horsepower without forced induction.
Temple 12:06AM (12/25/2007)
I love how the Z06/ZR-1 has become some mutated version of some people's nationalistic pride. But its awful pathetic how frequently these people troll GT-R and European-performance car stories on Autoblog (and elsewhere).
ambientFLIER 1:45AM (12/25/2007)
It still won't have great top-end, unless there is some kind of a trick 3-valve head. Just face it, a low end torque truck motor would be stupid in a german rocket that is famous for its high rpm scream and pull.
JD 2:16AM (12/25/2007)
I think that this engine is technologically superior to the LS9- how did that even come into this discussion?This has 2 more cylinders, so they aren't even comparable like that. It has fewer cubes. It isn't forced induction. What exactly do these engines have in common?
LS2/LS7- don't assume this is heavier than the LS9, as likely as that is (almost assured, but still) Although the OHV design is pretty light weight, a derivative of this engine, the 4.0 liter V8 that lives in the E92 M3, is actually about 40 lbs lighter than the 3.2 liter straight 6 it replaces. So it may not be as beastly heavy as if GM designed this type of engine.
AmbientFLIER- do you know what VANOS is? It's infinitely variable valve timing within the range it is capable of. Only one set of Cams on this engine, but VANOS is pretty trick. Look it up sometime. So it's better than if it had 3 sets of valves.
Anyways, They're impossible to compare. This is a much more precise, technical engine than any of the LS series V8's, as good as they may be. And the fact that Dinan has stroked it to 5.7 liters and still allows 8100 RPMs out of the thing? Incredible. Absolutely incredible, especially with 10 frickin cylinders. Merry Christmas all, or happy holidays. Take your pick, from me to you.
Franz 4:31PM (12/24/2007)
Man, rich people have all the fun......
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DS 5:07PM (12/24/2007)
what about the speed limiters?
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Turbofrog 5:03PM (12/24/2007)
Pricey, but sounds pretty incredible to me.
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UltimateDriver 5:30PM (12/24/2007)
One can only imagine the BMW's true potential if they'd decide to mid-engine with anything.
Dinan can already get McLaren F1 type numbers out of an engine that's two cylinders and almost half a liter down. To think what the wizards at BMW could do...
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Dave 8:48PM (12/24/2007)
There was the M1
http://www.youtube.com/watch?v=yoZH51eS3YM
3seriesisking 12:03AM (12/25/2007)
God Bless the M1