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· Bad Karma Supra
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IMO - mustang dyno seems to dyno ~18% lower than dynojet
 

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We've noticed an 8-12% difference between our Mustang(All Wheel Drive IMP) and the local Dynojet(248c)...Most of the time it hovers around the 12% mark though. We've done comparos with three cars now, including one Supra and on all three it was right at 12% but with that being said we've had some customers call us and tell us what they put down on the other dyno and that's where we get the 8-12% at.
 

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dieman said:
We've noticed an 8-12% difference between our Mustang(All Wheel Drive IMP) and the local Dynojet(248c)...Most of the time it hovers around the 12% mark though. We've done comparos with three cars now, including one Supra and on all three it was right at 12% but with that being said we've had some customers call us and tell us what they put down on the other dyno and that's where we get the 8-12% at.
That's correct...
 

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mpower said:
Ive noticed the dynojet is great for big numbers but mustang is real world results and more accurate for true tuning.
-Daniel
If the operator can work the dyno... ;) We have a new mustang AWD dyno in town, but the guy is having a hell of a time running it. Carl
 

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in2twins said:
If the operator can work the dyno... ;) We have a new mustang AWD dyno in town, but the guy is having a hell of a time running it. Carl
They are a little frustrating at first. The software for the tach leads is a bit tricky but not too hard. Give him a couple of months with it I'm sure he'll get it down. Do you know which All Wheel Drive one he got? We've got an All Wheel Drive one here and I must admit...it's a lot of fun to play with. Nothing more exciting than doing 1/4 mile runs and 6,000rpm launches with the STi on the dyno.
 

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pick a good dyno with good operators and tuners if you're not doing it and stick with it. Even the same model will change with use, age and other factors. Unless you're putting the peak hp on your t-shirt, don't worry about it.
 

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Discussion Starter · #17 ·
i dynoed on the dynojet and i dynoed 422.1 hp and 460.2 tq on 18 psi. on the mustange i did 335.5 hp and 342 tq on 15 psi. with the difference of 3 psi, its about a 18% difference in my case.
 
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