coil over shock problems
Discussion
Hi every one,
Has anyone had problems with the coil over shock conversion, I was thinking of getting some for the front but have noticed steve heath doesnt stock them any more, I did wonder if they would be putting too much strain on the top mounting, this is only really designed to mount the shock and not the full weight of the car. What mods can be done to the chassis to rectify this? Im going to remove the body so may as well sort the mounts at the same time.
All the best guys
Jon
Has anyone had problems with the coil over shock conversion, I was thinking of getting some for the front but have noticed steve heath doesnt stock them any more, I did wonder if they would be putting too much strain on the top mounting, this is only really designed to mount the shock and not the full weight of the car. What mods can be done to the chassis to rectify this? Im going to remove the body so may as well sort the mounts at the same time.
All the best guys
Jon
It is my understanding, having spoken to another TVR specialist, that a coil-over conversion would require significant strengthening of the turrets and lower wishbone,so it's not a bolt on modification. When I was in touch with SH a few months back, he did not have any kits, and was considering whether he wanted to continue with them. I understand that there were concerns about units not being fitted correctly.
You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
Number 7 said:
It is my understanding, having spoken to another TVR specialist, that a coil-over conversion would require significant strengthening of the turrets and lower wishbone,so it's not a bolt on modification. When I was in touch with SH a few months back, he did not have any kits, and was considering whether he wanted to continue with them. I understand that there were concerns about units not being fitted correctly.
You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
Yes , had the same conversation with Steve a few months back , so I've not changed my standard new springs and shocks . The alternative is to have specially strengthened wishbones made at around £1k .You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
Has anyone thought of 'cutting and shutting' some larger, but very similar Granada MK2 wishbones ?
From what I recall they're very similar in design, just physically bigger, and heavier looking.
Also, some pretty heavy engines were fitted to the old MK3 Cortina in other countries, such as a straight 6 in Australia, the Essex 3 litre in S.Africa.
Did they have modified wishbones to cope...still available ?
A lot of drag racers used big engines in them too, and modified suspension.
Another possible area of research ?
Maybe some nice fabricated wishbones going spare, and with possibly better spring angle ?
Can anything be borrowed from the original Corty subframe ?
...or maybe I'm talking s
te. 
From what I recall they're very similar in design, just physically bigger, and heavier looking.
Also, some pretty heavy engines were fitted to the old MK3 Cortina in other countries, such as a straight 6 in Australia, the Essex 3 litre in S.Africa.
Did they have modified wishbones to cope...still available ?
A lot of drag racers used big engines in them too, and modified suspension.
Another possible area of research ?
Maybe some nice fabricated wishbones going spare, and with possibly better spring angle ?
Can anything be borrowed from the original Corty subframe ?
...or maybe I'm talking s
te. Edited by grahamw48 on Wednesday 24th March 23:12
I have completed the conversion. To do so I removed the upper turret completely, designed and had brackets fabricated and welded in. The lower wishbone had to be modified. I would not recomend attaching the lower part of the shock using the old mounts as there is too much force being applied on to 2 13mm nuts. What I did was to fabircate 2 lower mount brackets welded onto a 20mm rounded bar which was then welded onto the lower wishbone making the whole assembly much stronger. I'll put up some pics when I get the chance.
combine said:
Number 7 said:
It is my understanding, having spoken to another TVR specialist, that a coil-over conversion would require significant strengthening of the turrets and lower wishbone,so it's not a bolt on modification. When I was in touch with SH a few months back, he did not have any kits, and was considering whether he wanted to continue with them. I understand that there were concerns about units not being fitted correctly.
You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
Yes , had the same conversation with Steve a few months back , so I've not changed my standard new springs and shocks . The alternative is to have specially strengthened wishbones made at around £1k You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
For 1k...??
I've been looking at this upgrade myself. I too postponed the decision as there seemed to be some differences of opinion with regards to strengthening.
I am not keen on modifying the chassis and wondered if it would be possible to produce some sort of strengthening bracket that bolts into the top turrets?? I'm not too concerned about modifying the wishbones as these can be easily exchanged.
It seems to me that bolting in the coilover under the wishbone means that all the forces are in effect trying to push the nut off the end of the thread. Surely it would be much better if the forces were acting on top of the wishbones, as the original spring does. Not sure if this is even possible, I'll have to give it some more thought.
I'd really like to fit a setup at the front that provides adjustable ride height, adjustable camber and is easier to work on. Getting new springs on the front is not my favourite job even with a spring compressor and 2 trolly jacks.
Cheers Steve
I am not keen on modifying the chassis and wondered if it would be possible to produce some sort of strengthening bracket that bolts into the top turrets?? I'm not too concerned about modifying the wishbones as these can be easily exchanged.
It seems to me that bolting in the coilover under the wishbone means that all the forces are in effect trying to push the nut off the end of the thread. Surely it would be much better if the forces were acting on top of the wishbones, as the original spring does. Not sure if this is even possible, I'll have to give it some more thought.
I'd really like to fit a setup at the front that provides adjustable ride height, adjustable camber and is easier to work on. Getting new springs on the front is not my favourite job even with a spring compressor and 2 trolly jacks.
Cheers Steve
GV said:
combine said:
Number 7 said:
It is my understanding, having spoken to another TVR specialist, that a coil-over conversion would require significant strengthening of the turrets and lower wishbone,so it's not a bolt on modification. When I was in touch with SH a few months back, he did not have any kits, and was considering whether he wanted to continue with them. I understand that there were concerns about units not being fitted correctly.
You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
Yes , had the same conversation with Steve a few months back , so I've not changed my standard new springs and shocks . The alternative is to have specially strengthened wishbones made at around £1k You might want to get Richard Thorpe's opinion on the work required to the chassis.
7.
For 1k...??
Here are some pics snapped using my phone - at least you will get an idea of what I have done. I now have peace of mind all for under £150. Needless to say, the front feels very solid and steers wonderfully. Just got to sort the rears next....£1k..!!!
Edited by GV on Friday 26th March 15:02
GV said:
Here are some pics snapped using my phone - at least you will get an idea of what I have done. I now have peace of mind all for under £150. Needless to say, the front feels very solid and steers wonderfully. Just got to sort the rears next....£1k..!!!
Andrew , whats the handling like with the coilovers on front compared to original springs ?Edited by GV on Friday 26th March 15:02
I previously had Konis with original springs which made the front seem vague if that makes sense. Everything now feels more planted and together as if the whole car moves round corners since the conversion. I've also got SH droplinks plus the bulkhead bearing's been modded too which explains why it all feels together. I won't really get the bigger picture until I've done the rears. I've got a set of Armstrongs on which are quite firm and don't do much in the comfort dept. However, where the front deals with everything nicely the rears don't so the next upgrade should be worth the investment.
I took the route on the front because I didn't have peace of mind after my turrets got severley distorted and one of the brackets popped off its lower mounting...!!
I took the route on the front because I didn't have peace of mind after my turrets got severley distorted and one of the brackets popped off its lower mounting...!!
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