Did experience wheel spin, axle tramping and torque steer in my PoD with almost stock power
But not anymore since I installed the SuperPro anti-lift bush with increased ppwer
Well at least not in street driving conditions
Does anyone get torque steer in their Pog? Just curious as I've read lots about it, but not sure what it really feels like. All i seem to get is rampant wheel spin, and axle tramping....
Had a 300hp Xr5 turbo before this and didn't notice any either....
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Did experience wheel spin, axle tramping and torque steer in my PoD with almost stock power
But not anymore since I installed the SuperPro anti-lift bush with increased ppwer
Well at least not in street driving conditions
06 Polo TDi
Std VW rear LCA bushes are good at 110kw. Rip them out, SuperPro my preference, but jut about anything is a step up from the std ones. Starting with the Seat Sport solid ones for a factory feel.
Powerflex and all the usual suspects do replacements but only SuperPro have the caster correction that can be used to provide antilift.
While you're in there, replace the front LCA bush too. Any time the LCA can move side to side, torque steer will be the result.
Gavin
Torque steer is caused by the fact that transverse gearboxes have unequal length drive shafts. For some reason the diff will ordinarily send more torque down the longer shaft. So you basically end up with torque tugging assymetrically at the steering wheel and even more so when one side lets go completely. Short of fitting ford style 'revo hubs' that seperate the steering axis from the suspension arc, wheel offsets and how they affect scrub radius have a lot to do with tempering torque steer.
Axle tramp is a bit different and has a lot to do with anti lift geometry, and damper and bush compliance too. Anti dive/anti lift is all to do with the angle of the lower wishbones. If the lower wishbones are angled so that in compression the hub will move upward and forward then it has anti dive geometry - basically because it is hard for the hub to move this way eg in the direction of the bump it is hitting. You have basically introduced a sort of compliance stiction. The by product of this though is you are more prone to axle tramp and it will ride bumps harsher.
If the lower wishbone is angled so it will track up and back along a line similar to the strut castor line then it doesn't have anti dive/lift because you are making it easy for the suspension to track along a natural compression/extension plane. The suspension will feel more compliant, will tend to wheel spin more cleanly but will put power down more effectively coming out of turns.
I only recently found out that when we install offset LCA bushes in the anti dive anti lift position (down), we are actually taking away anti dive anti lift geometry because we are lowering the rear of the wishbone and causing the hub to track in the direction that makes resisting dive/lift harder. I don't think the manufacturers are trying to mislead - it does affect anti dive anti lift geometry but just not in the way most of us presume. Benefit though is theoretically better power down on corner exit though so smiles all round. Thats why its such a big mod for rexies too.
I get all the theory, but I just don't get the fuss about torque steer.
I've got non offset poly rear control arm bushes, will going poly on the fronts make much of a difference? ( the fronts are solid rubber aren't they?)
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Torque steer is nasty, the more power you have. Won't be half as bad with poly rear bushes, as the direction of the wheels won't move much side to side, with bad road surfaces.
Flogged out stock ones, very different story.
Front bush is rubber and so pretty stiff already. Can't go wrong with more poly though.![]()
Tramping is the wheel hopping up and down and transmits like a sledge hammer into the cabin via the dog bone - from what you've said you haven't missed it when it happens. Not sure how you've missed torque steer though. Its how you have to basically counter steer under full torque and then it usually suddenly releases and the bit of effort you had on the wheel to stay straight is now trying to take you off the road. Its more than a bit of kick and wiggle through the wheel - it can feel like you're doing an involuntary lane change!
The biggest thing I found with the standard front bush was how undersized the bolt was inside the bush sleeve. The sleeve supplied with my superpro bushes weren't much better so I got a custom sleeve made up that was a flush fit for the VAG bolt and that killed all the slack that was there.
By the sound of it you don't think you are getting torque steer so I doubt doing the front LCA bushes will make better something that isn't a drama for you. The car will feel much tighter, pointier and planted with them though.
Out of interest what rims, diameter/width, and offset are you running. Do you have cheap tyres? Do you run ESP on or off? Mine torque steers like an animal - must be some reason why yours isn't.
Are your rims ET35'ish?
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