DynaPack Dyno ???
Jul 22, 2005, 12:30 PM
#1
DynaPack Dyno ???
So I was tuned a few weeks ago on a DynaPak dyno. The one where you bolt the dyno's to the wheel hubs. Horsepower seemed about right at 360 with Methanol injection so but the torque was way low. Like 300Ft Lbs. I have a hard time believing this number. Are these dynos known to read low for torque?
Jul 22, 2005, 12:49 PM
#3
Originally Posted by Fourdoor
If you look at the charts you will see that the HP is SAE corrected, but the torque on the charts is the raw value with no correction. If you dynoed on a hot day this would explain the low torque reading compared to your HP reading.
Keith
Keith
So the fact that it was 95 Degrees and 95% humidity, probably had something to do with it?
Jul 22, 2005, 02:38 PM
#4
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yeah I would guess so, that is STUPID hot...but I feel your pain, my friend's Full-Race Civic Si dynoed 420 whp in november in AZ and when dynoed again less than a year later(think april or may) it dropped to 380. Nothing had been done to the car to change this and it hadn't been raced much.
Jul 22, 2005, 05:20 PM
#5
Originally Posted by gestalt
So the fact that it was 95 Degrees and 95% humidity, probably had something to do with it?
You can figure out your SAE torque figures by taking the HP figure from the SAE corrected HP chart and take the HP at each point, multiply it by 5252 and then divid by the RPM at that point.
T = (HP*5252)/RPM
Let us know the results
Keith
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