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Old 07-31-2006, 02:30 AM   #1
cbourbs
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Default mustang dyno

Does anyone know how accurate the mustand dyno is. I heard it can be way off. I was reading about a forester was putting 350 on mustand dyno, and another dyno put down 450, he said he could break loose with the power he had. I got a correction number i was putting down 362 on mustang, with the correction was like 384!?
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Old 07-31-2006, 04:56 AM   #2
Blaine B.
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Quote:
Originally Posted by cbourbs
Does anyone know how accurate the mustand dyno is. I heard it can be way off. I was reading about a forester was putting 350 on mustand dyno, and another dyno put down 450, he said he could break loose with the power he had. I got a correction number i was putting down 362 on mustang, with the correction was like 384!?
Torque is what makes you break loose.

Edit: Correction? Are you using the DIN correction formula mentioned in another thread? Nobody uses DIN correction in my experience. The most popular correction factor people use to inflate their #'s is SAE. SAE correction on a forced induction car is completely out to lunch in my opinion. If you'd like I can tell you what your SAE corrected #'s were when I get to the shop on Monday.
I much prefer uncorrected #'s that don't blow sunshine up your ass. They indicate what your car is actually putting to the wheels in it's native environment in the actual conditions of it's surroundings. SAE tries to correct for elevation, temperature, humidity, barometric pressure etc.
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Old 07-31-2006, 05:04 AM   #3
vincent-h
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2005 Impreza RS

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truth be told who wants correcton number ti just inflates the number toa gragging rights kinda thing. if u wanan prove to them ur uncorrected 364hp is faster than theire correct 400hp show them on the road/track

i'm know your's is plenty fast
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Old 07-31-2006, 10:31 AM   #4
aleksl
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Mustang dynos are the most accurate, repeatable dynos out there. At least they are for 2wd vehicles. (I don't see how it would be diff for 4wd).

The ones in Calgary at tecmotion and dynomotive read about 13% lower than dynojets in town. However they are much easier to tune on due to their ability to simulate load. I used to love telling people I make 260whp and run low 13s in my honda

IMO it's just a number. What I look for is repeatability for tuning purposes.
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Old 08-01-2006, 12:57 AM   #5
cbourbs
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sweet thanks guys, i definately don't want to inflate the numbers!! But next year i want to hit 420, that's the max im prepared to go on stock internals!!
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