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What causes torque steer ?

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Old 11 March 2008, 02:23 PM
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Del mar
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Default What causes torque steer ?

Afternoon,

I know that it is too much power through the front wheels, but why does it pull left or right ?

Thanks
Old 11 March 2008, 02:25 PM
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Tidgy
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its the wheels struggling to get grip.

they don't grip at the same time so it steers itself.

thats the simple version anyway
Old 11 March 2008, 02:25 PM
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Silver Knight
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The power will always go the easist route so the wheel that has the least grip will get the most power and create the torque steer.
Old 11 March 2008, 02:27 PM
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jonny_693
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Can also depend on Equal length driveshafts aswell.
Old 11 March 2008, 02:27 PM
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= torque

hth
Old 11 March 2008, 02:31 PM
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speedking
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Wikipedia also doesn't give a very clear answer
Old 11 March 2008, 02:37 PM
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Dave1980
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isnt it to do with the drive shafts connecting to the axle. depending on the length and position of the axle it connects to it will pull more to one side?.

not mechanically minded to that extent but its something like that i think.

a good lsd usually solves the problem though i know that much.
Old 11 March 2008, 02:53 PM
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Shark Man
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Basically as mentioned: Its a very broad term, but basically it is where one driven wheel is dealing with more torque than the other.

Particularly when the front wheels are at the limit of grip, the car will have a tendancy for the steering wheel to pull in an unwanted direction. Usually due to indifference of grip between the front wheels (hence torque difference).

Affects any 4WD, AWD and 2WD vehicle. (actually, Classic Imprezas, are pretty bad for it if given a hard standing start on a wet road).

Limited slip front differential and differing suspension geometry can minimise this. As well as having decent tyres by having ones that work in the UK climate (wet and cold ).

Also having over-assisted power steering will make it less noticeable to the driver, which is why it is more of a complaint on sporty cars, as usually they have lower stearing assistance, and thus more feedback. (Like its a bad thing; its a good thing, but it seems manufacturers are listening to customers and reducing feedback to appease them )

Last edited by Shark Man; 11 March 2008 at 02:59 PM.
Old 11 March 2008, 04:56 PM
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Andy T
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Interesting report from Ford

http://www.mscsoftware.com/support/l...C_008_FORD.pdf
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