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Old 01-05-2011, 05:53 PM   #78
PERRINJeff
NASIOC Manufacturer
 
Member#: 74110
Join Date: Nov 2004
Location: PERRIN Performance
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We always use 4th gear on our Dynapack. A few times i did 5th, but the way the Dynapack works, it doesn't really care as long as hub TQ doesn't exceeds its limit. On a 400WHP car 5th gear looses about 4HP over doing it in 4th. Compared to 15WHP on a traditional roller dyno (see this on a Mustang) its not that bad.
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