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      06-21-2012, 10:16 AM   #1
George@V
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How to properly Dyno a N54 335is with DCT

Looking to get some baseline dyno runs on a Mustang dyno in a few weeks and wanted to get some tips on how to properly dyno my 2012 335is (N54 engine) with the 7-speed DCT gearbox.

Any fuses to pull? Which gear is closest to 1:1? Thanks in advance.
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      06-21-2012, 10:32 AM   #2
Concentric190
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hold DTC until its all deactivated. Dyno in 4th.
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      06-21-2012, 10:42 AM   #3
George@V
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Quote:
Originally Posted by Concentric190 View Post
hold DTC until its all deactivated. Dyno in 4th.
Thanks. Why do you recommend dynoing in 4th? I found the following gear ratio's online. Hopefully they are accurate.

DCT Gear ratios (overall):
I 4.78 (12.25)

II 3.056 (7.83)

III 2.153 (5.52)

IV 1.678 (4.3)

V 1.39 (3.56)

VI 1.203 (3.08)

VII 1 (2.56)

R 4.454
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      06-21-2012, 10:45 AM   #4
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Another note. The Mustang dyno requires that you enter the weight of the vehicle. I'll be using 3600 pounds as the weight for my dyno runs (will remain a static number).

FYI, I've seen differences in the results from of this particular dyno if you change just the weight of the vehicle.
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      07-30-2012, 08:57 PM   #5
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Update: Thread with Dyno Results of my car!

http://www.e90post.com/forums/showth...1#post12417321
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