Torque is rotational force times the distance the force is applied at, measured at the axle centre. It is expressed in foot pounds or newton (1 kg * 9.8) metres.

Actual drive torque experienced at the tyre surface varies as pi*D proportional to tyre/wheel diameter. Larger diameter = less torque. When the torque is measured at a particular tyre size rolling surface, this is tractive effort.

Hope this helps.

OK I'll go....can you please explain the difference between this "tractive effort" and "torque"?

feral eral, now that guy knows his ####e!

go on guys, ask him a question...

The dyno was not calibrated for torque before your run I would say.

The figures you have are good for a stock Ca18DET but the torque figure does not make sense.

Horsepower is torque times engine speed divided by 5252. This means with 160.5 hp
it would be 550 times engine speed divided by 5252.
So engine speed would be (160.5*5252)/55o =1532.6 rpm

For example a typical 98 Chevy Winston Cup race engine with 12:1 CNC ported SB2 heads produces 720 HP at 7000 RPM and a maximum of 540 ft lb torque at 5500 rpm.

I calculate the torque at 6800 rpm as 160.5*5252/6800=123.9 ft/lbs torque.
Still a very respectable figure at 6800 rpm.
In a 1200 its rocket material.

edited out as this double posted through my stupidity

As Andrew has said the torque figure is not comparable to the figures you will see in the back of, say, MOTOR magazine when looking at new car stats because it is tractive effort not engine torque. 800NM of torque would tear the thing in half!
Regards Matty

Quote:

to keep my chrome shinning i stick some steel wool and brasso to my gilfriend...
works a treat!

thanxs mate yeah diff convesion needed quick smart haha.
if you mean to keep the polish work shining i stick with Autosol.

I don't doubt it makes good power. If not, great power. Enough to break an axle The torque figure just doesn't make sense. Either way, I'm happy for you and your results and I hope you don't end up selling it. What do you use to polish by the way?

im just telling you what the dyno read out if i had a scanna id post the read out up on the site.
Anyway the car just screams on the street so im happy