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Re: Do gears affect Dyno Numbers?
Old thread, but very interesting in my situation...
My '07 Mustang GT is an automatic with a 4,500 rpm stall converter and I swapped the 3.31 gears for 4.10 gears. Double whammy on the dyno based on the info provided above about lower gears and stall converters. To further add to my car's lower dyno #'s, my tuner's dyno is a Mustang Chassis Dyno (vs the more commonly used Dynojet which tends to read higher than the MD). Still very happy with the 351 rwhp and 12.57 @ 110+ mph 1/4 mile performance, though.
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Current Mustang: 2014 GT Glass Roof Coupe - Ruby Red with 6R80 trans.
Prior Mustangs: '03 Mach 1, Azure Blue 5-speed w/ IUP, '11 Brembo GT, '07 GT with Vortech S-Trim, '00 Spring Feature GT coupe, '89 LX 5.0 Sport, '88 LX, & '75 Mach 1.
Prior Thunderbirds: 1993 LX Sport 5.0L, 1990 LX, 1988 Turbo Coupe.
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