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M5 V8 is mighty complex

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Old Apr 20, 2006 | 07:53 AM
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Default M5 V8 is mighty complex

Guys, our V8s are quite simple in comparison, here's an online parts fiche, I thought it might be interesting because if our cars were made for another 5 years or so, it would have had an engine like this most probably. Just click on the various sectors of the motor. I have never seen so many different little bits, pity the poor mechanic that has to rebuild them. This is the same engine that is now used in the Ascari. It produces 500 hp from 5 litres.

M5 engine parts fiche
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Old Apr 20, 2006 | 11:32 AM
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Heh, that's purdy cool. Just click on what you want to see.
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Old Apr 20, 2006 | 11:41 AM
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Stick a blower on our 'simple' 5L V8 and you have the same output.
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Old Apr 20, 2006 | 12:50 PM
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Damn that site is cool.

Now I have the details for my E39 530!
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Old Apr 20, 2006 | 03:01 PM
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That's really cool...Part numbers and diagrams for my '72 R50!
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Old Apr 20, 2006 | 04:04 PM
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I like that website pretty informative do you know if they make a site like that for our 928's possibly?
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Old Apr 20, 2006 | 04:27 PM
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I don't see any real differences.
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Old Apr 20, 2006 | 05:25 PM
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Wow!

They've even got parts lists & diagrams for my 1952 R68!

Very cool.

James
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Old Apr 20, 2006 | 06:23 PM
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Judging by the sounds of things I should post this link in the OT section? There is plenty of BM guys there I'm sure. Or Randy are you going to move it?

Cheers Greg
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Old Apr 20, 2006 | 11:36 PM
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Don't you think that Porsche would have more likely just gone the route of the Cayenne and twin turbo'd it. I think they would have liked the shared drivetrain and therefore the 928 would have likely ended up with a truck engine. This would only make more financial "sense" since the Cayenne outsells the defunct 928 by just a small margin. Maybe its good the 928 died before shared platforms became an issue
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Old Apr 21, 2006 | 11:22 AM
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Fellow who works with me just bought a California M5, through a broker in Seattle. Loves it. Leaves my 928 far back in the dust. That's one stealth car! Race car on a family sedan body. Has 2 MAFs, butterfly for each cylinder, etc. Complex but very fast car. Only about 20,000 imported. Each engine put together by hand by a special craftsman.

Harvey
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Old Apr 21, 2006 | 02:26 PM
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Originally Posted by Greg Gray
Guys, our V8s are quite simple in comparison, here's an online parts fiche, I thought it might be interesting because if our cars were made for another 5 years or so, it would have had an engine like this most probably. Just click on the various sectors of the motor. I have never seen so many different little bits, pity the poor mechanic that has to rebuild them. This is the same engine that is now used in the Ascari. It produces 500 hp from 5 litres.

M5 engine parts fiche

Interesting. BMW only got 400 HP out of that engine. The new BMW V10 puts out 500 hp, it is also 5 litres.
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Old Apr 21, 2006 | 02:29 PM
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8 cyl -> 400bhp
8 cyl + 2 cyl -> 500bhp .... makes sense
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Old Apr 21, 2006 | 03:17 PM
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Originally Posted by heinrich
8 cyl -> 400bhp
8 cyl + 2 cyl -> 500bhp .... makes sense

Sort of. Same displacement. Doesn't that mean same amount of fuel/air being exploded, regardless of the number of cylinders? Each cylinder is smaller in the V10.

I thought the power was mainly gained by a higher redline, 8K for the V8 vs 9K for the V10.
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Old Apr 21, 2006 | 03:42 PM
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The V10 has very little low end torque. The V8 has 400hp at 6600rpm 369ftlbs at 3800rpm. The V10 has 507hp at 7750rpm 383 ftlbs at 6100rpm. The V8 is really a 4.9L (4941cc) and the V10 is a 5.0L.
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