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Published on May 14, 2013
The Mustang Shop's 358ci NASCAR Cup engine powered 2008 Mustang on the dyno. This is a 3rd gear tuning pull but still need to lean out the jetting a little more. I ran the car to 8400 RPMs and it made a corrected 653whp . The timing is set at 32 degrees and will try a little more advance to see how it responds. This trans typically has a 20% loss in 4th and 22% loss in 3rd gear. Once the tuning is finished and the pulls are done in 4th gear, I expect to see over 675 hp at the tires. This works out to roughly 840 hp at the crank.