Revo Knuckles

[Manimillion]

This is Ford's solution to Torque steer. They have applied for a patent in 2001, and have called this system "revo knuckle". First production car to feature the Revo Knuckles is the Ford Focus RS.

The new Ford Focus RS is equipped with an innovative front suspension system known as a ‘RevoKnuckle’, which is designed to reduce unwanted steering disturbance and torque steer, the impact of torque on steering in front-wheel driven vehicles. Torque steer occurs during hard acceleration, cornering or driving on uneven surfaces, when torque on the driven wheels exceeds grips levels. It is characterised by sudden turning force on the steering wheel and can be exacerbated by vehicles with wide tyres and limited-slip differentials.

In Focus RS, the RevoKnuckle works in conjunction with a Quaife Automatic Torque Biasing limited-slip differential. Ford Team RS engineers have worked closely with Ford's Advanced Research Centre in Aachen, Germany to develop the RevoKnuckle technology specifically for the high performance Focus RS. It allows the simplicity of a traditional McPherson strut arrangement, but with geometry settings that minimize steering disturbances and torque steer, principally a reduction in steering offset.

Ford's brief PPT presentation about the Revo Knuckles

http://www.not2fast.com/chassis/revoKnuckle.pdf

I would love to have a front suspension setup like that on my SVT, the biggest complain I have is the steering wheel tug, and torque steer.

[FIND]

Focus RS still has some nasty torque steer. At least according to Jeremy Clarkson.

Though that does look tasty from a handling and predictability standpoint.

[Manimillion]

Focus RS still has some nasty torque steer. At least according to Jeremy Clarkson.

Though that does look tasty from a handling and predictability standpoint.

I love Jeremy Clarkon's reviews to death, but you have to realise that Top Gear is more of an entertainment show rather than a credible source for an automotive review.

I am not saying there is no torque steer when you let go of the steering wheel and go WOT, but even Jezza said that the way the steering wheel reacts in corners and while exiting corners is odd (meaning odd for an fwd car), and there are dozens of other journalists who praise the way the RS drives.

[Livinsvt]

I was gonna say I wouldn't take Clarkstons input to seriously. The revo knuckle is a great design, GM had something similar at one point, but never saw the light.

[Dyoel182]

I've been following it ever since they said it would be on the new RS. I'd love to see it make its way onto the Mazdaspeed3 at some point.