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Old Mar 18, 2007 | 07:55 PM
  #1  
Hoss 2000 Z-28's Avatar
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HP Guestimate?

Okay guys, a dyno is expensive and I want to just get an idea of what I've got under the hood. I have an untuned A4, 2.72 rear end, 2000 Z28 how much power at the crank and at the wheels do you guys think my car is making?

K&N FIPK
Long Tube Headers / ORY
3" Magnaflow Cat-Back
NGK55 sparkplugs
JBA 8mm Wires
Old Mar 18, 2007 | 07:59 PM
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Somewhere around 320 rwhp.
Old Mar 18, 2007 | 09:36 PM
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My keyboard dyno says 312 whp.
Old Mar 18, 2007 | 09:37 PM
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mdacton's Avatar
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323rwhp
Old Mar 18, 2007 | 10:36 PM
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317.8547
Old Mar 19, 2007 | 07:51 AM
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untuned through an A4...310-315rwhp

with a tune...325-330
Old Mar 19, 2007 | 09:14 AM
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AL SS590 M6's Avatar
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Originally Posted by teke184
untuned through an A4...310-315rwhp
Mine made that without the headers.
Old Mar 24, 2007 | 05:17 PM
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Guys I'm confused and disappointed. I have a 2002 SS with hi flow SLP Lid, Jet Hot Headers and mine dyno'd at 252 rwhp and 268 rwhp after a performance tune. What gives?
Old Mar 24, 2007 | 06:09 PM
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Mustang dyno???
Old Mar 24, 2007 | 09:16 PM
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Yeah, how did you know it was a Mustang?
Old Mar 24, 2007 | 09:33 PM
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Their numbers are lower than Dynojets.
Old Mar 25, 2007 | 07:11 AM
  #12  
AL SS590 M6's Avatar
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Originally Posted by rgenzmer
Guys I'm confused and disappointed. I have a 2002 SS with hi flow SLP Lid, Jet Hot Headers and mine dyno'd at 252 rwhp and 268 rwhp after a performance tune. What gives?
How does the car run on the street or track??? Dyno numbers don't mean anything. The calibration of the dyno could be way off. or he put the wrong parameters in for your car.
Old Mar 25, 2007 | 09:35 AM
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Originally Posted by AL SS590 M6
How does the car run on the street or track??? Dyno numbers don't mean anything. The calibration of the dyno could be way off. or he put the wrong parameters in for your car.
I'd tend to disagree.

If you have the Dynojet 248 that's factory-calibrated and the correct parameters are put in, the numbers are dead-on.

The smaller 224 version is more susceptible to inaccurate readings due to the "flash-software" used to recalibrate them.
Old Mar 25, 2007 | 11:09 AM
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Originally Posted by Greed4Speed
Their numbers are lower than Dynojets.
Ok, I will buy that Mustang dyno numbers are less than Dynojets but jesus that much less from the rest of the guys numbers that posted?
Old Mar 25, 2007 | 11:12 AM
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Originally Posted by AL SS590 M6
How does the car run on the street or track??? Dyno numbers don't mean anything. The calibration of the dyno could be way off. or he put the wrong parameters in for your car.
Ok, I will run this by the guys that tuned and dyno'd. I have had the car since new but haven't had it to the track. Nebraska has just one strip left in the state and I will venture there in April for a test and tune day to get some numbers. As far as how it runs on the street I can only say that from a powerbrake start at about 2k rpm the Goodyear tires melt to where I need something different once I get to the track. At 25 mph's when I get on it it also shreds the tires so there must be some power there. I just can't understand the numbers so low from the rest of you.



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