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      11-24-2012, 05:25 PM   #53
Mike Benvo
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Drives: 08 E90 M3 / 400whp Turbo 7
Join Date: Apr 2008
Location: SoCal

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1990 BMW 735i Turbo  [5.00]
2004 BMW M3  [0.00]
2008 BMW M3  [5.00]
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Quote:
Originally Posted by urBan_dK View Post
This. The Church dyno AKA "moon dyno" reads significantly higher than any dyno I've ever come across. Case in point: http://www.s2ki.com/s2000/topic/9902...et-my-results/

That's almost 20% higher than a DynoJet.
And the next post says "dynos are tuning tools. Don't get too concerned about the actual number. The numbers are relative."

Which is 100% correct. Comparing one dyno to another is futile exercise. Even comparing the same brand dyno to another is not by any means scientific. This is why you must look at the DELTA between the runs... THAT is accurate.

It's obvious that a Dynapack is going to read higher anyway because it's not going to account for losses from rotating the wheels and tires. It removes a variable from the equation which I think is better. The less variables you have the more accurate the result.
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