F.A.O. - Paceracing
Discussion
Jas,
What have you done with your ARB mounts ?
Since the Superflex Poly ones are for a 25mm bar and mine is 22mm, thats out. My Dad has piped up and said he can make me some out of Ally, which is the extreme, but atractive solution....
Wondered what you had done, as I know what Peter H had done to his.
Cheers
Mark
What have you done with your ARB mounts ?
Since the Superflex Poly ones are for a 25mm bar and mine is 22mm, thats out. My Dad has piped up and said he can make me some out of Ally, which is the extreme, but atractive solution....
Wondered what you had done, as I know what Peter H had done to his.
Cheers
Mark
Johno,
When I changed my suspension bushes, I left the ARB bushes alone as they looked ok. I would go for Poly if I were replacing, so that the bar isn't clamped too tightly and can do the job it was designed for, which is twist. Surely someone knows where to get these poly bushes in this size at reasonable cost? Maybe from a different type of car?
I would however go for solid mounts for the steering rack but that is another question so if your Dad ever makes some of these then he could have an extra customer!!
Jas.
When I changed my suspension bushes, I left the ARB bushes alone as they looked ok. I would go for Poly if I were replacing, so that the bar isn't clamped too tightly and can do the job it was designed for, which is twist. Surely someone knows where to get these poly bushes in this size at reasonable cost? Maybe from a different type of car?
I would however go for solid mounts for the steering rack but that is another question so if your Dad ever makes some of these then he could have an extra customer!!
Jas.
I have seen a number of competition cars (sprints/speed trials) with the ally clamp and I know a guy with a S3 with them, he made himself.
The intention would be to make them so the bar could still twist aswell as in a rubber/poly bush but would not suffer the twist it does with them.
When clamping the 2 halves together over the bar it would have been wrapped in a thin film of polyurethane to give it a bearing surface to start with. Once they have been clamped together for a while they should create their own bearing face and the poly helps prevent corrosion knackering this.
I am trying to get hold of Superflex to see whether they've had this problem before and offer an alternative. I'll report back if they ever get off their phone !!
Cheers Jas,
Mark
The intention would be to make them so the bar could still twist aswell as in a rubber/poly bush but would not suffer the twist it does with them.
When clamping the 2 halves together over the bar it would have been wrapped in a thin film of polyurethane to give it a bearing surface to start with. Once they have been clamped together for a while they should create their own bearing face and the poly helps prevent corrosion knackering this.
I am trying to get hold of Superflex to see whether they've had this problem before and offer an alternative. I'll report back if they ever get off their phone !!
Cheers Jas,
Mark
Jas,
Been onto Superflex today, and they do the same ARB mount in 22mm size. Chris has sent them to me and they should be here tomorrow.
So the Ally option is out for a while but I did have a look at the steering rack bushes this morning. I reckon I could do something with them though. How much flex do they give under load ? Any ideas ?
I'll let you know what difference they poly ones make if any !
Cheers
Mark
Been onto Superflex today, and they do the same ARB mount in 22mm size. Chris has sent them to me and they should be here tomorrow.
So the Ally option is out for a while but I did have a look at the steering rack bushes this morning. I reckon I could do something with them though. How much flex do they give under load ? Any ideas ?
I'll let you know what difference they poly ones make if any !
Cheers
Mark
I did have a look at the steering rack bushes this morning. I reckon I could do something with them though. How much flex do they give under load ? Any ideas ?
Johno,
I don't know how much flex they give under load, but I do know the Rally boys use solid mounts on their cars as it makes the steering very precise, and since I am trying to outdo the Lotus Elsie's of this world with a TVR 'S' series, (should be a challenge) I thought that would be the way to go!!
Let me know how you get on
Jas.
Johno,
I don't know how much flex they give under load, but I do know the Rally boys use solid mounts on their cars as it makes the steering very precise, and since I am trying to outdo the Lotus Elsie's of this world with a TVR 'S' series, (should be a challenge) I thought that would be the way to go!!
Let me know how you get on
Jas.
quote:
I don't know how much flex they give under load, but I do know the Rally boys use solid mounts on their cars as it makes the steering very precise, and since I am trying to outdo the Lotus Elsie's of this world with a TVR 'S' series, (should be a challenge) I thought that would be the way to go!!
Let me know how you get on
Jas.
Jas,
at the time being (last 2 nights until 0:30), I'm working on my S3 to improve steering precision, as well.
Have you checked, if your steering rod on the pinion side does not make any back and forward movement prior moving the wheels. This has an enourmous influence on steering precision. If so it is a sign that the Nylon guide is not keeping the rack against the pinion under load. You will have to encounter that with shims, that you put between the cover and the plastic guide. You should get them in a ball bearing shop (FAG, SKF...)
If the rod on the other side does the same, it's time to get a steering housing rebushed.
Only if a.m. issues are ok, it would be worth to look into alloy fixations. Have you any idea how to remove the rubber ones? Aren't they vulcanized on the housing?
Cheers and good luck hunting the Elises
- Patrick Fitted the new Poly ARB mounts from Superflex today and they have made a great deal of difference to the precision of the front. The whole lot just seems more together than before.
Haven't had chance to use in consistent anger for yet, but will do tomorrow.
At this point I would wholly recommend changing them.
It is a bugger of a job and took quite a while due to the need to compress the poly bushes into the space only just big enough for the rubber ones. But well worth it !
The bushes I took out weren't that knackered either...
Cheers
Mark
Haven't had chance to use in consistent anger for yet, but will do tomorrow.
At this point I would wholly recommend changing them.
It is a bugger of a job and took quite a while due to the need to compress the poly bushes into the space only just big enough for the rubber ones. But well worth it !
The bushes I took out weren't that knackered either...
Cheers
Mark
Mark,
Those ARB bushes sound like the way to go then. It may be worth fitting them to mine, how much were they? The only concern I have is that my suspension is pretty much on the limit for the front and could do with slightly softer front springs (approx 25 - 50 lbs) if anything. Increasing roll stiffness is certainly worth experimenting with and with these softer springs I might be on to a winner!
Jas.
-------------------------------------------------------Roulli,
Those ARB bushes sound like the way to go then. It may be worth fitting them to mine, how much were they? The only concern I have is that my suspension is pretty much on the limit for the front and could do with slightly softer front springs (approx 25 - 50 lbs) if anything. Increasing roll stiffness is certainly worth experimenting with and with these softer springs I might be on to a winner!
Jas.
-------------------------------------------------------Roulli,
quote:
quote:
Have you checked, if your steering rod on the pinion side does not make any back and forward movement prior moving the wheels. This has an enourmous influence on steering precision. If so it is a sign that the Nylon guide is not keeping the rack against the pinion under load. You will have to encounter that with shims, that you put between the cover and the plastic guide. You should get them in a ball bearing shop (FAG, SKF...)
If the rod on the other side does the same, it's time to get a steering housing rebushed.
Only if a.m. issues are ok, it would be worth to look into alloy fixations. Have you any idea how to remove the rubber ones? Aren't they vulcanized on the housing?
Cheers and good luck hunting the Elises
-------------------------------------------------------
I have never tried removing the steering rack mounts as at the last check they seemed OK with no perceptible movement. Under high speed load and vibration there must be some movement however.
I am seeing quite a few of my motor racing mates next tuesday so i'll find out what the implications of solid rack mounts are then. I'll also talk to the rally boys although they are a strange bunch, (all scotch eggs and tartan thermos flasks, talking about the sound of dump valves in Welsh forests!)
When I get some good alround opinions, i'll report back.
Jas.
There were about £25 if I remember rightly...If you measure your RB, if it is a 25mm diameter then I have a set I am due to send back to Superflex. Could send on to to you and just pay Superflex for them.
The poly ARB bushes give the steering more feel and a more settled feeling when you are pushing it along. I have been very impressed considering the front end of mine still needs work to get it right.
Let me know about the size as I need to send these back or pay for them ASAP.
Cheers
Mark
The poly ARB bushes give the steering more feel and a more settled feeling when you are pushing it along. I have been very impressed considering the front end of mine still needs work to get it right.
Let me know about the size as I need to send these back or pay for them ASAP.
Cheers
Mark
quote:
Let me know about the size as I need to send these back or pay for them ASAP.
Cheers
Mark
Johno,
That's very good of you!
I'm up to my nu+s with work at the mo, so don't worry, i'll sort it with superflex when I get around to it, as things are at the moment, it'll be at least a week before I even get to look at the old girl again (and that's just the wife!!
) Thanks for the kind offer though,
Jas.
Gassing Station | S Series | Top of Page | What's New | My Stuff