550i horsepower shortage

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Apr 7, 2009 | 09:10 PM

#31

El Immigrante

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From: SoCal- SFV (Land of pimps, drug dealers, money, hot cars and hot wimmenz...this ain't no movie bitch, mess with us and we'll cut ya!)

Quote:

Originally Posted by joe@raceprecision' post='840102' date='Apr 7 2009, 09:58 PM

We have not dynoed any stock 550i. The two 550i we have dynoed, iceman316 and SocalM5Mang, were both modded with performance products (AFE CAI and custom exhaust) that drastically reduced power. We have dynoed stock 545i that average 250 rwhp on our Dyno Dynamic which reads 10% lower than Dyno Jet

Ok, I'm not sure who I spoke to but they did state to have dynoed a few stock 550s. In any case, I'll be giving you guys a call on Monday/Tuesday after M-Fest to see if I can get in for a baseline dyno session on Friday the 17th since I'll be in the area visiting my parents. We'll go from there.

Apr 7, 2009 | 09:19 PM

#32

joe@raceprecision

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From: Socal

You spoke to Eloy. He gets the 545i/550i mixed up sometimes. I have been present for all the 545i and 550i dynos. A stock 550i should dyno between 275 - 280 rwhp on the Dyno Dynamics.

Apr 8, 2009 | 04:03 AM

#33

El Immigrante

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From: SoCal- SFV (Land of pimps, drug dealers, money, hot cars and hot wimmenz...this ain't no movie bitch, mess with us and we'll cut ya!)

Quote:

Originally Posted by joe@raceprecision' post='840115' date='Apr 7 2009, 10:19 PM

You spoke to Eloy. He gets the 545i/550i mixed up sometimes. I have been present for all the 545i and 550i dynos. A stock 550i should dyno between 275 - 280 rwhp on the Dyno Dynamics.

Awesome! Thanks Joe!

Look forward to meeting you and the crew!

Apr 8, 2009 | 02:11 PM

#34

Richard in NC

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From: North Carolina, USA

My Ride: 2008 BMW 550i 2006 BMW X3

Quote:

Originally Posted by joe@raceprecision' post='840115' date='Apr 8 2009, 01:19 AM

You spoke to Eloy. He gets the 545i/550i mixed up sometimes. I have been present for all the 545i and 550i dynos. A stock 550i should dyno between 275 - 280 rwhp on the Dyno Dynamics.

Are there any fuses to pull or other things to be done to the 550i to dyno it?
There are a few local shops and I'd like to get a baseline.

Apr 8, 2009 | 04:15 PM

#35

bindoy

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From: AZ

My Ride: 04 545i

Quote:

Originally Posted by joe@raceprecision' post='840102' date='Apr 7 2009, 09:58 PM

Did you dyno auto or manual? Does it matter what transmission it has? I have 545 step and will dyno before putting any performance parts, just wondering what I should expect.

Apr 8, 2009 | 04:46 PM

#36

joe@raceprecision

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From: Socal

Quote:

Originally Posted by Richard in NC' post='840890

Did you dyno auto or manual? Does it matter what transmission it has? I have 545 step and will dyno before putting any performance parts, just wondering what I should expect.

Our Dyno Dynamics does not care whether it's auto or manual. The drivetrain loss is the same since it's a load bearing dyno. The Dyno Jet is an inertia dyno where drivetrain loss is different for auto (18% - 20%) and manual (15%).