FWD Torque Steer problems

[XSVWGN]

I drove my wagon up the coast today to get it painted and it was the first motorway drive with the 4agte in my ae100 wagon.

As soon as boost kicks in the wagon bites right really hard. Currently running 265kw at 20psi.

Is there anything that can be done to limit torque steer? .. and i imagine someone will say dont run huge power in a fwd need to master the car at this power before i try running things at 350kw tune


Matt

021 297 1754

[Dell'Orto]

Run an open diff

[XSVWGN]

haha no fun there!!!! but thanks for your opinion

[Dell'Orto]

But more seriously - what suspension set up do you have? Will take a bit to keep that sort of power in check.

[BZG Wagon]

What tyres are you running - could you move to a stiffer sidewall?
Can you lower your car?

Are your driveshafts the same length?

Surprised you get enough traction for torque steer!

[XSVWGN]

Suspension is BC gold Adjustables, tyres are Dunlop 205/50/15s. Wagon sits quite low as it is to be honest so dont think i want to be going any lower

[Akane]

haha no fun there!!!!;)

oh the irony....

[strx7]

is you Rh axle a hanger bearing type one or a long single piece one?

[gasman]

there's nothing you can do, but hold on a bit tighter. you get used to it eventually.

[Bazda]

Wheel alignment is the biggest thing.
You need to play with it to get it right so it steers straight when you put the power on. Slight toe out on mine made it better. Slight toe in on the rears.

Going lower actually makes torque steer worse as the suspension geometry has changed.

When I ran the drag tyres I got no torque steer at all

Also if the road is not completely flat that doesnt help.

[touge_ae101]

you would be wanting a bit of toe-in in the front wouldn't you? so when the power comes on, it pulls the wheels back to where they are pointing in the right direction.

some of the honda guys use traction bars which are pretty much like a RWD castor arm that mounts to the front rad support or somewhere solid to stop the wheels going walk about

[ATAl]

I've heard that extra castor helps reduce torque steer.

Also, my car has no torque steer whatsoever, and the setup isn't much different. I reckon it's because of the quaife lsd.

[1I1]

you would be wanting a bit of toe-in in the front wouldn't you? so when the power comes on, it pulls the wheels back to where they are pointing in the right direction.

When power comes on it'll try to pull the wheels forward

[tsoob]

Fit a big ass rear sway bar, and change your bushes to nolathane.

[fuel]

you would be wanting a bit of toe-in in the front wouldn't you? so when the power comes on, it pulls the wheels back to where they are pointing in the right direction.

some of the honda guys use traction bars which are pretty much like a RWD castor arm that mounts to the front rad support or somewhere solid to stop the wheels going walk about

Just about all cars run toe out on the front to a small degree.

[Bazda]

FWD will try to toe-in when you accelerate. As your applying power. Its not like a rwd car where the front wheels are being pushed therefore trying to toe-out.


Strange as it may seem, on some front-wheel drive cars and minivans, a slight amount of toe-out (up to about 1/16th inch) may be specified when aligning the wheels to compensate for toe-in that occurs as the front wheels pull the vehicle down the road. Drive torque more than offsets the compliance in the steering and suspension allowing both front wheels to toe-in slightly when accelerating. This is also what causes "torque steer" (a sudden steering pull) in some FWD cars that have unequal length halfshafts. Under hard acceleration, the left wheel with the shorter halfshaft experiences more toe-in than the right wheel with the longer halfshaft. The result is unequal toe changes and a steering pull to the right. Vehicle manufacturers have reduced or eliminated torque steer in many FWD cars by using equal length halfshafts and/or stiffer control arm bushings.

[touge_ae101]

oh true now that i think about it i thought about it the wrong way....

I've heard that extra castor helps reduce torque steer

haha from my experiece more castor makes torque steer worse when i drive my car in the wet. cause i can't get wheelspin when its dry...

[Bazda]

Extra caster is meant to help with torque steer which is correct.

[Truenotch]

oh true now that i think about it i thought about it the wrong way....

I've heard that extra castor helps reduce torque steer

haha from my experiece more castor makes torque steer worse when i drive my car in the wet. cause i can't get wheelspin when its dry...

That could be the extra toe movement from the change in geometry due to castor adjustors?

[dnalunchie]

I remember when I had my type R. That was making 140kw atw and it used to torque steer like a biatch. In the rain it was scary.