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It's short, it's tall, it's narrow and it's light and that poses a few problems, one of which is a vagueness in the steering which will be heightened by the lift. Now don't get me wrong about this, in all probability a change to a more suitable tyre ie diameter will improve things considerably. Stick to a type that suits the terrain you drive on.
A 50mm lift may or may not take the castor angle out of spec. It all depends on the original settings for that particular car, and the only way to know that is to have a suspension geometry check at a decent tyre dealer. Armed with the settings that this check will produce you will know, yes it's out of spec so fit bushes or no it's still inside spec, leave it alone.
I have a Gen.4 with a 50mm lift and yes, it can be skittish in a cross wind but no more than any other car suddenly hit in the side by a 40mph gust - as happened yesterday - so don't let that thought bother you. Would I change it, no way.
Roger Fairclough wrote: It's short, it's tall, it's narrow and it's light and that poses a few problems, one of which is a vagueness in the steering which will be heightened by the lift. Now don't get me wrong about this, in all probability a change to a more suitable tyre ie diameter will improve things considerably. Stick to a type that suits the terrain you drive on.
A 50mm lift may or may not take the castor angle out of spec. It all depends on the original settings for that particular car, and the only way to know that is to have a suspension geometry check at a decent tyre dealer. Armed with the settings that this check will produce you will know, yes it's out of spec so fit bushes or no it's still inside spec, leave it alone.
I have a Gen.4 with a 50mm lift and yes, it can be skittish in a cross wind but no more than any other car suddenly hit in the side by a 40mph gust - as happened yesterday - so don't let that thought bother you. Would I change it, no way.
Roger
Yeah, I agree that the tyres aren't helping with the handling. I'm considering just buying a standard set for driving around town and then keeping the big boys for weekend highland fun, if I buy it.
The issue I had was that the steering wheel was snatching left and right on a moderately bumpy tarmac road on a still day.
My worry comes as the coastal road I drive every day regularly sees 40m/s (90mph) side winds.
You're right though. A trip to a decent shop will tell me everything I need to know about the castor.
The issue there is no real bump steer. That's what happens in independent suspension when the link arms are not quite right so as the suspension moves it forces the steering to turn at the same time. What you are experiencing is a mild form of proper death wobble. All live axles are susceptible to it and it becomes more pronounced as tyre size increases relatively to the length of the steering lever on the knuckle. It's not that bad if it just kicks and stops as that means the steering damper is doing its job. It becomes a problem when it starts feeding back into itself over a number of seconds or minutes. It's a well known issue with the gen3 which doesn't have a steering damper instead relying on a bearing pre-load in the rest of the steering system. If you know it does it you can adapt to drive around it to a greater extent. If its a problem then its at the point where you can no longer hold the steering wheel straight without it pulling out of your hand. I wouldn’t be too worried but I haven't driven the car in question.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Lambert wrote: The issue there is no real bump steer. That's what happens in independent suspension when the link arms are not quite right so as the suspension moves it forces the steering to turn at the same time. What you are experiencing is a mild form of proper death wobble. All live axles are susceptible to it and it becomes more pronounced as tyre size increases relatively to the length of the steering lever on the knuckle. It's not that bad if it just kicks and stops as that means the steering damper is doing its job. It becomes a problem when it starts feeding back into itself over a number of seconds or minutes. It's a well known issue with the gen3 which doesn't have a steering damper instead relying on a bearing pre-load in the rest of the steering system. If you know it does it you can adapt to drive around it to a greater extent. If its a problem then its at the point where you can no longer hold the steering wheel straight without it pulling out of your hand. I wouldn’t be too worried but I haven't driven the car in question.
Thanks for the explanation, man. I've just had word from the mechanic that performed the lift and he confirmed that it was fitted with correction bushes.
Roger Fairclough wrote: 90mph side wind, blimey, I think I will stay at home.
Ha! It can be fun if you're prepared. When it happens it's generally constant and not too gusty. Problem is when it's starts picking up sand. You can end up with not very much paint left on one side of the car.
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