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General BMW Model Discussion
All non E46 BMW model questions in here. Look below for E36, E90 and F30 specific forum. For additional model specific forums check out!

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Old 10-13-2009, 11:59 AM   #21
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Pretty short stroke on these things but they are Fast! i was lucky enough to drive the x6 twin turbo and its just crazy!
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Old 10-13-2009, 06:34 PM   #22
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Originally Posted by Presns3 View Post
didnt know that...
that big cork thing has to rob a lot of power
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Old 10-14-2009, 03:24 AM   #23
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Good luck replacing the alternator on that sob

(which of course, it being a BMW, you'll have to do sooner rather than later :p)
Vehicle history
1999 BMW E46 328Ci TS2
1992 BMW E36 316i Sold
1987 Suzuki VS1400
1996 Suzuki LS650 Sold
1984 Kawasaki 305CSR RIP

Went from 305cc > 650cc > 1400cc > 2800cc
No prizes for guessing what my next engine will be...

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Old 10-15-2009, 09:35 AM   #24
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The turbo/manifold design is also brand new. It is a twin scroll type system in that the exhaust manifolds route two cylinders into each scroll of the twin scroll turbos. I read about it but might be using the wrong terminology, but it is supposed to significantly cut down on turbo lag as well as being able to use smaller turbos to get the same power. You can see the split manifold design in this pic...
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Old 10-15-2009, 12:31 PM   #25
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Originally Posted by snikwad View Post
BMW has been doing turbos for years, with the diesels, and since the 70s, with the 2002 turbo from way back, i think they have a thorough understanding of how turboes work.

Its cooling things they suck at.
Yeah true the cooling system will be the problem for large amounts of power pass stock. Also those turbos are small they will be max out with not much boost increase. Also you dont have much options for upgrades because the turbo manifold placement. It kinds of reminds me of the TT Supra system for a real upgrade you would have to go single turbo or maybe 2 large turbos feeding 4 cyl but space may be the issue also heat.
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Old 10-15-2009, 12:36 PM   #26
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The manifold just looks like a divided flange. Which is process that has been used for years in that after Import Market. Maybe they just prefect the design
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