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Originally Posted by 300CUL8R
I got back from the Dyno today for the first time and my numbers are nowhere near JMatt's or cbutlers'. Is it the fact that I only have 4k on the new motor? What gives? Question for the gearheads: What causes the dispersion from one car to the next? Here are the #s:
Best pull: 347.59 HP 351.18 ft/lb Torque
(Sorry, I'd post the file but can't figure out how to get it small enough to upload)
Granted I only dyno'd it to get a baseline for when I add the MF and CAI to see what gains to expect.
Should I be bummed?
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I would not give it a second thought. Depending on fuel, temperature, elevation, humidity, mileage, dyno machine etc... Your results will vary. Also, 425 HP at the crank will always be less at the rear wheels.
As you said, you did it for a baseline. Now, try and dyno your car on the same machine under the same conditions to measure the percentage increase after your mods.
Don't get hung up on the numbers.
If your SRT-8 feels underpowered (which I doubt) have the dealer pull the codes. (probably unnecessary).
Gotta Go, the open road beckons...