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Old 11-01-2009, 01:56 PM   #16
Marcus Frost
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Join Date: Jul 2003
Location: Chicago, IL
Posts: 1,958
Drives: '05 E55, '05 SL65, '09 G55
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Quote:
Originally Posted by Benz-O-Rama View Post
The owner of the shop says that his DD dyno consistently rates cars 8-10% lower than a DJ. His advice was to figure 28% loss on his dyno. That would put my car way up there as far as HP/TQ goes, so I don't know. Now that I finally have some hard 1/4 mile data, it's much easier to confirm gains with MPH.
DD typically reads lower than DJ, but no way are you seeing 28% DT loss. That's just silly. You are making stock SL65 power with that MPH, which would equate to roughly 20-22% DT loss. Your car dyno'd on a DD very close to what mine did, and we run similar MPH.

-m
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