Drivetrain Dyno Charts
The main factor is the auto scale feature. Look at the scales on each axis They are very close. I could change the scales manually but then I wouldn't see the detail. There is a lot of info displayed that is not obvious to the untrained eye. All cars have a point that is where peak torque occurs. Once past this point, torque begins to fall off. Horsepower can continue to rise because it is calculated from the formula HP= Tor x Rpm divided by 5252. The graphs that I post show exactly what is happening during the test.
Most of the dyno plots that I see posted on the internet are really pretty accurate for the dynos used. The problems and confusion come when you see a plot of a Mitsubishi Evo with the stock turbo claiming to make 450whp. That's just not going to happen and the pros in the business know why this is not possible.
Most of the dyno plots that I see posted on the internet are really pretty accurate for the dynos used. The problems and confusion come when you see a plot of a Mitsubishi Evo with the stock turbo claiming to make 450whp. That's just not going to happen and the pros in the business know why this is not possible.
Dynopack question --
Since it attaches directly to the wheel hubs, is it considered to be a theoretical WHP? Is it simulating an infinitely light wheel? Or does the machine calculate as if there's a wheel attached of a particular diameter and weight?
Thank you!
Since it attaches directly to the wheel hubs, is it considered to be a theoretical WHP? Is it simulating an infinitely light wheel? Or does the machine calculate as if there's a wheel attached of a particular diameter and weight?
Thank you!
Last edited by golfersmurf; Apr 30, 2007 at 10:17 AM.
Ok I got my dyno today at 10am In San Jose, Nor. Cali. I will post the graph later but the numbers are:
2002 Cooper S
Gear Used: 4th
Temp.: 78 f
Transmission: Manual 6 spd.
Test Machine: Dynojet
Max Torq.= 159.6 @ 7250 rpm
Max WHP= 206.0 @7250 rpm
Avg a/f ratio at 12
Mods in the sig.
2002 Cooper S
Gear Used: 4th
Temp.: 78 f
Transmission: Manual 6 spd.
Test Machine: Dynojet
Max Torq.= 159.6 @ 7250 rpm
Max WHP= 206.0 @7250 rpm
Avg a/f ratio at 12
Mods in the sig.
Last edited by SharoSC02; May 3, 2007 at 05:15 PM.
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