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  #1  
Old 18-10-2006, 03:42 PM
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On the hub dyno 500nm at the hubs on 1.35bar and 440whp
On mainline dyno 740nm and 400whp

Both runs in 4th on a 5spd, even though lane said I must use 3rd. I wanted to compare with hub dyno and that run was in 4th.

Recent tune on Hub dyno day before i ran the 11.55 was 480whp and 515nm of torque on 1.6bar.

Looks about 10%diff between the 2.
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Old 18-10-2006, 07:49 PM
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haha thanks for the tip matt.
but alas! more problems !!
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Old 18-10-2006, 07:59 PM
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Why do you find it hard to believe?
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Old 18-10-2006, 08:03 PM
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Nice one Tode. Buzz me if you're still up for a spin.
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Old 18-10-2006, 08:09 PM
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Yeah that torque figure is total bs. ... no way it could possibly be making 700nm+.....The wok hub dyno is giving the correct torque figure. There are 383ci LS1 Strokers that cant make more than 600nm at wheels. If anyone thinks that 850nm is possible from a 2L they are smoking crack...pass the pipe.
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Old 18-10-2006, 08:10 PM
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Its not 800nm of torque, its 800nm of tractive effort..

The tractive effort is obtained by multiplying the torque by the total ratio of power train and dividing this sum by the rolling radius of the driving tyres.

Depending on the overall gear reduction and the diameter of the tyres, a 300nm jump in tractive effort would be something like 50-100nm of actual torque, so its not completely unbelievable!!!

Last edited by BALISTC; 18-10-2006 at 08:14 PM.
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Old 18-10-2006, 08:13 PM
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Quote:
Originally Posted by BALISTC
Its not 800nm of torque, its 800nm of tractive effort..

The tractive effort is obtained by multiplying the torque by the total ratio of power train and dividing this sum by the rolling radius of the driving tyres.
Even if that's true and I not saying it isn't, that's still more than double my car with has a few mild mod's on the same type of dyno.......
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Old 18-10-2006, 08:11 PM
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More torque than a WRC Car by like 350nm.... ROFLMAO.
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Old 18-10-2006, 08:12 PM
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Well everyone can chip in some cash and i'l book it in at SW for a power run and see what torque it really pulls....
either way - 800nm or not, its pulls harder than my previous tune at 500nm. So my bet is that its more than 500nm. 800nm - yes well... but comparing them to Gareths results - it doesnt look to dubious to be honest.
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Old 18-10-2006, 08:13 PM
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Don't forget WRC cars run restrictors in the intake
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