[GTT 280]

Hi all,

Does anybody have torque and 0-60 readings for a 260 bhp modded MCS.

Thanks.

[MINIMANIAUK]

Its not quite so simple as 260 bhp = x acceleration and y torque. 0-60 is a very flawed means of telling how good a car is there are just too many variables ,tyres,wheel size,temperature,how many gear changes if any,ratios,weight,driver ability,clutch etc,the torque again is as much about losses in drivetrain,flywheel,clutch,tyre weight,wheel weight etc . It is possible to have a 200 bhp car and rev it to 10000 rpm and voila 260 bhp , A far better guide to a cars performance is its 1/4 mile times and terminal speed,or acceleration times from 40-70 or 50-80 or 90-120 etc the accel times give a better indication of real road driving. The only reason 0-60 became such a quoted or desireable target was as a historical thing in the 60,s and 70,s a sporty or performance car was considered to get to 60 in under 10 seconds ,it was the 10 sec barrier that was the target .Many of the heavier cars have poor 0-60 times due to the mass that has to be accelerated from a standstill but you try to stay with them from 70!!! I wish we would use 1/4 mile times as the Americans do, a 13 or 14 second car is a quick car irrespective of BHP/torque numbers

[GTT 280]

Quote: Originally Posted by MINIMANIAUK

Its not quite so simple as 260 bhp = x acceleration and y torque. 0-60 is a very flawed means of telling how good a car is there are just too many variables ,tyres,wheel size,temperature,how many gear changes if any,ratios,weight,driver ability,clutch etc,the torque again is as much about losses in drivetrain,flywheel,clutch,tyre weight,wheel weight etc . It is possible to have a 200 bhp car and rev it to 10000 rpm and voila 260 bhp , A far better guide to a cars performance is its 1/4 mile times and terminal speed,or acceleration times from 40-70 or 50-80 or 90-120 etc the accel times give a better indication of real road driving. The only reason 0-60 became such a quoted or desireable target was as a historical thing in the 60,s and 70,s a sporty or performance car was considered to get to 60 in under 10 seconds ,it was the 10 sec barrier that was the target .Many of the heavier cars have poor 0-60 times due to the mass that has to be accelerated from a standstill but you try to stay with them from 70!!! I wish we would use 1/4 mile times as the Americans do, a 13 or 14 second car is a quick car irrespective of BHP/torque numbers

Yes, "0-60" is indeed the lazy minds approach. Much better to have the in-gear accelearation times, real life uses.

Cheers.

[Humourl3ss]

Given that hp is a function of torque and RPM, if hp = torque x RPM / 5252, then you can rearrange the equation to get a torque figure from RPM. The problem is that I don't know the RPM.

A few examples:

If peak hp is at 4500 RPM, torque is 303 ft/lbs
If peak hp is at 5000 RPM, torque is 273 ft/lbs
If peak hp is at 5500 RPM, torque is 248 ft/lbs
If peak hp is at 6000 RPM, torque is 227 ft/lbs
If peak hp is at 6500 RPM, torque is 210 ft/lbs
If peak hp is at 7000 RPM, torque is 195 ft/lbs
If peak hp is at 7500 RPM, torque is 182 ft/lbs

Of course, those are just torque numbers from peak hp. They don't tell us what the torque curve looks like or what or where peak torque occurs.