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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 335i Turbo Boost Pressure VS RPM



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      11-18-2010, 09:00 PM   #1
kfrazie1
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335i Turbo Boost Pressure VS RPM

I know I saw around somewhere the brand of turbochargers on the 335i. Does anyone know how many RPMS they are rated for? I think I saw it was around 220,000 or so. Also, does anyone know of any technical graphs/charts that show a relationship bewteen the boost pressure & turbo RPM? Obvisouly it increases, but im looking for specific numbers. Trying to calculate a factor of safety for the boost pressure I'm running at.

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Keith
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      11-18-2010, 09:02 PM   #2
JonLerd
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Quote:
Originally Posted by kfrazie1 View Post
I know I saw around somewhere the brand of turbochargers on the 335i. Does anyone know how many RPMS they are rated for? I think I saw it was around 220,000 or so. Also, does anyone know of any technical graphs/charts that show a relationship bewteen the boost pressure & turbo RPM? Obvisouly it increases, but im looking for specific numbers. Trying to calculate a factor of safety for the boost pressure I'm running at.

Thx

Keith
http://www.e90post.com/forums/showthread.php?t=256804
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      11-18-2010, 10:10 PM   #3
kfrazie1
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Thx, just saw that after I posted. Don't think anyone really gave a summary of what boost levels were safe...I'm running jb+ at 35%. Figured that would be around 11 lbs of boost.
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