Banging wheels
Discussion
t ones, obviously, the cars that spring to mind were a diesel Sierra and a van, but RWD all the same.AC43 said:
No, not just a FWD problem. I'm old enough to have experienced absolutely epic axle tramp in Cortina's and Capri's in the 80's. Poor suspension location and pig iron live axles played a part. But they were also woefully under damped.
The RWD Alfa's of the day were the opposite. Decent location and lo unsprung weight, yes, but also relatively soft, long travel springs and expensive dampers - Konis' Bilsteins, etc.
One of my 200 SX's did it - much to my irritation - as I modded it and was advised to use certain springs and dampers and it ended up over sprung/under damped
My wife's Clio does it but dampers cost about 50p.
My povvo-fleet-spec Cavalier did it but the CDX one didn't (but it had SRI suspension with Bilsteins).
The dampers on my previous E Class became a bit tired and it would do it if I really gave it the beans at low speed on a greasy corner.
The current one is far newer and there's not a hint of it.
Actually I think someone hit the nail on the head later - it's Traction Control kicking-in! The RWD Alfa's of the day were the opposite. Decent location and lo unsprung weight, yes, but also relatively soft, long travel springs and expensive dampers - Konis' Bilsteins, etc.
One of my 200 SX's did it - much to my irritation - as I modded it and was advised to use certain springs and dampers and it ended up over sprung/under damped
My wife's Clio does it but dampers cost about 50p.
My povvo-fleet-spec Cavalier did it but the CDX one didn't (but it had SRI suspension with Bilsteins).
The dampers on my previous E Class became a bit tired and it would do it if I really gave it the beans at low speed on a greasy corner.
The current one is far newer and there's not a hint of it.
I had a Mk2 Cortina, Mk2 Granada, Mk2 Escort RS2000, two Capri 2.8is and a Scorpio back in the day and none of them did this - they either bogged down or span up!
My MK2 16V Golf Gti just span up the inside front wheel, but that Leon Cupra I had made it feel like it had bottomed out in a pothole!
Since I sold the Leon I've only had RWD BMWs - when T/C does kick in it isn't exactly subtle, but it's much less crashy.
Maybe it just needs to be turned off.
Mr Tidy said:
AC43 said:
No, not just a FWD problem. I'm old enough to have experienced absolutely epic axle tramp in Cortina's and Capri's in the 80's. Poor suspension location and pig iron live axles played a part. But they were also woefully under damped.
The RWD Alfa's of the day were the opposite. Decent location and lo unsprung weight, yes, but also relatively soft, long travel springs and expensive dampers - Konis' Bilsteins, etc.
One of my 200 SX's did it - much to my irritation - as I modded it and was advised to use certain springs and dampers and it ended up over sprung/under damped
My wife's Clio does it but dampers cost about 50p.
My povvo-fleet-spec Cavalier did it but the CDX one didn't (but it had SRI suspension with Bilsteins).
The dampers on my previous E Class became a bit tired and it would do it if I really gave it the beans at low speed on a greasy corner.
The current one is far newer and there's not a hint of it.
Actually I think someone hit the nail on the head later - it's Traction Control kicking-in! The RWD Alfa's of the day were the opposite. Decent location and lo unsprung weight, yes, but also relatively soft, long travel springs and expensive dampers - Konis' Bilsteins, etc.
One of my 200 SX's did it - much to my irritation - as I modded it and was advised to use certain springs and dampers and it ended up over sprung/under damped
My wife's Clio does it but dampers cost about 50p.
My povvo-fleet-spec Cavalier did it but the CDX one didn't (but it had SRI suspension with Bilsteins).
The dampers on my previous E Class became a bit tired and it would do it if I really gave it the beans at low speed on a greasy corner.
The current one is far newer and there's not a hint of it.
I had a Mk2 Cortina, Mk2 Granada, Mk2 Escort RS2000, two Capri 2.8is and a Scorpio back in the day and none of them did this - they either bogged down or span up!
My MK2 16V Golf Gti just span up the inside front wheel, but that Leon Cupra I had made it feel like it had bottomed out in a pothole!
Since I sold the Leon I've only had RWD BMWs - when T/C does kick in it isn't exactly subtle, but it's much less crashy.
Maybe it just needs to be turned off.
Triumph Man said:
Here's proper axle tramp
If you look carefully, you can see that a lot of the tramp there is caused by the undamped longitudinal oscillation of the axle rather than vertical.Road cars will often have reasonable levels of longitudinal compliance for ride comfort, and whilst suspension bushes have some natural damping which is a property of rubber, it's not much.
Edit: Having said that, the mustang has a leaf sprung live axle? So has no longitudinal bushes? So I'm probably talking out of my arse
Edited by JoeMk1 on Saturday 8th December 08:10
dieseluser07 said:
Just had an mot last week, would the shock absorber/bushes have shown up on it?
Springs are aftermarket and made by eibach, very good springs, quite progressive and not much stiffer than factory.
Yeh i think it is wheel hop.
I did have traction control in 'sport mode' at the time as i thought that would let the wheels spin more and reduce wheel hop.
Were the dampers replaced to match the new springs? Also on an FWD car I think you want to eliminate wheelspin, zero wheelspin = zero wheel hop, I'd have thought?Springs are aftermarket and made by eibach, very good springs, quite progressive and not much stiffer than factory.
Yeh i think it is wheel hop.
I did have traction control in 'sport mode' at the time as i thought that would let the wheels spin more and reduce wheel hop.
Gassing Station | General Gassing | Top of Page | What's New | My Stuff