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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 engine with pic



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      02-17-2010, 11:50 AM   #23
Jeff@TopGearSolutions
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Quote:
Originally Posted by Willizm View Post
I would have to think that BMW is really going to try and nurf the tuning capabilities with the valvetronic system in place. Just a hunch and I would love to be wrong, but that is my gut feeling.
The've been trying to slow tuners down for years, including other car companies.
It doesnt work, they should just give up and start making it easier. Might even boost sales LOL
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      02-17-2010, 12:13 PM   #24
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Originally Posted by joec500 View Post
I wonder if this is a BorgWarner Turbo....As Audi has had these electronic DV's for a long time. Hopefully the diaphragm in that electronic DV can withstand the additional boost people will be running in these things, if not I am sure Forge or the like will come out with some mechanical alternative like they did in the 2.0T motors in the Audi. Also I wonder if it will be easier to access all these parts for mods/service.

Hmmmm.... This motor is looking more and more interesting as I read more about it.
It is indeed a BorgWarner Turbo...you can see their logo on the turbo housing right in that picture.

Quote:
why does that manifold look like it is a 6 into 1 design? That wouldnt make sense if they are saying its a twin scroll.
See here:

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      02-17-2010, 12:14 PM   #25
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Originally Posted by cn555ic View Post
Yeah you really think so? Mod in terms of what?
One Downpipe, one turbo, one intake.
There's less to modify and less to purchase.
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      02-17-2010, 12:19 PM   #26
raceyBMW
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Don't forget only one wastegate, one DV, shielded exhaust manifold (less engine bay heat).

Downsides are Valvetronic and probably more anti-Tuning measures implemented in the DME software.
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