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Racing 550i

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Old 01-18-2007, 04:45 AM
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Originally Posted by sese' post='380017' date='Jan 18 2007, 05:15 PM
Aren't E60s much too heavy for racing?
As you can see at 1275 kilos those are very striped cars.
Old 01-18-2007, 04:49 AM
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Originally Posted by heezy545i' post='380021' date='Jan 18 2007, 05:24 PM
Found this PDF on the 550 http://www.romamotorweb.it/public/fi..._BMW550_ss.pdf

I tried to translate it some.

Weight: 2805lbs
Power: 431hp @7000RPM
Displacement: 4.799 liter
WOW they raised the power significantly by almost 100bhp yet they raised the rpm by a meere 1000 units. Now this power is obtained at only 400rpms more than the 550i right?
Old 01-18-2007, 04:52 AM
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Originally Posted by BetterMakeWay' post='380032' date='Jan 18 2007, 01:49 PM
WOW they raised the power significantly by almost 100bhp yet they raised the rpm by a meere 1000 units. Now this power is obtained at only 400rpms more than the 550i right?
I wonder how often the engine needs to be stripped and rebuilt?

ABC
Old 01-18-2007, 04:32 PM
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Originally Posted by aybeesea' post='380035' date='Jan 18 2007, 05:52 AM
I wonder how often the engine needs to be stripped and rebuilt?

ABC
It does look like the 550 puts out a high stressed 431hp. From this vantage point it would seem to be at a disadvantage as some of the other cars pictured, e39 m5, RS4, put out 400bhp in stock form.

Rebuilding engines is common in racing though.
Old 01-18-2007, 07:42 PM
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Originally Posted by monster' post='379960' date='Jan 18 2007, 02:50 AM
Thanks Monster
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