Technical Strut brace

[fingers99]

Haven't you got an uprated ARB on Blue?

My Turbo has an Eibach one fitted so i presumed yours did too

No, mine is the stock one: I think I got the nicer top strut brace!

Aaron always said that the uprated one made no appreciable difference. FWD is always a bit strange, especially on tiny cars, but logic suggests that a bigger front ARB will produce more understeer, while I rear one might give you a tad of oversteer.

One day I'll play around with something like the Punto set up, but do it with some form of adjustment. I'd like the tub to handle like my old Fulvia, with just a touch of lift off oversteer.........

 

[allanhelen]

Nope got a nice top brace too

The only reason i ask is that i put an Eibach on the NA when it was still at stock hight and didn't like the result at all it was very understeery.

On the turbo though it has a noticably sharper turn in and much less roll thyan the lowered and braced NA, so i would say with the right set up it is worth it

....... however saying that I have only evey seen two Eibach ARB's for sale in my whole time of Cinq ownership and I bought one of them and the other was accident damaged. so it's a bit arbitary to argue about something that is just unobtainable.

 

[rallycinq]

....... however saying that I have only evey seen two Eibach ARB's for sale in my whole time of Cinq ownership and I bought one of them and the other was accident damaged. so it's a bit arbitary to argue about something that is just unobtainable.

How do you recognize an Eibach one?

Cheers

D

 

[allanhelen]

they are a slightly different shape and are a bit thicker. They are usually painted a nice bright colour too, I'll get a pic next time mines on a ramp.

 

[fingers99]

Shouldn't be that difficult to make up. Length of high carbon steel round bar, apply heat with gas axe, bend. Real trick would be finding some way of tempering them properly........ The easier straight bar and drop arm set up probably wouldn't fit at the front.

Just been looking at some old archive stuff of Jim Clark and the Lotus 25 (on the itv F1 site) and the rear ARB set up looks very free form.

 

[rallycinq]

they are a slightly different shape and are a bit thicker. They are usually painted a nice bright colour too, I'll get a pic next time mines on a ramp.

mmm, thanks. I have just removed an ARB from a Cinq that does look a bit thicker than standard, unfortunately I threw mine in the skip years ago so don't have a standard one to check against. Its also painted red.

Cheers

D

 

[ycming]

I'll have it for my cinq , David??

Just playing

Ming

 

[allanhelen]

mmm, thanks. I have just removed an ARB from a Cinq that does look a bit thicker than standard, unfortunately I threw mine in the skip years ago so don't have a standard one to check against. Its also painted red.

Cheers

D

D.

Just nip out into your back garden will you, as with your luck you are bound to find a couple of piles of rocking horse sh*t out there

I remember a few post about Eibach ARB's a while ago sure there was some pics as well https://www.fiatforum.com/cinquecento-seicento/51224-eibach-uprated-anti-roll-bar.html here you go and yes Eibach's ARB are red and two different designs as well apparently

 

[rallycinq]

D.

Just nip out into your back garden will you, as with your luck you are bound to find a couple of piles of rocking horse sh*t out there

I remember a few post about Eibach ARB's a while ago sure there was some pics as well https://www.fiatforum.com/cinquecento-seicento/51224-eibach-uprated-anti-roll-bar.html here you go and yes Eibach's ARB are red and two different designs as well apparently

Having waded through the rocking horse droppings, remembering to avoid the hens teeth, them pictures look exactly like what I have in my shed, even down to the paint coming off one side.

Can I expect a full pm box?

Cheers

D

 

[arseofbox]

Shouldn't be that difficult to make up. Length of high carbon steel round bar, apply heat with gas axe, bend. Real trick would be finding some way of tempering them properly........ The easier straight bar and drop arm set up probably wouldn't fit at the front.

mmm Tempering that yourself would be a little difficult at best! I also hazard that its gonna be kind of expensive to get someone to do it for you.

The force / stiffness relationship in an ARB is power law related IIRC - so a small decrement in pick-off distance (relative to the pivot) will make an appreciable increase in the stiffness. Equally, a small increase in pick-off distance will make an appreciable decrease in stiffness.

 

[fingers99]

I think it would probably be just doable DIY (maybe temper one bend at a time, using some form of cold front), but what you'd ideally need is a big salt bath or a furnace. Or maybe cold bend (given the right equipment) a slightly thicker bar of stainless? Essentially we're only talking of early 20C shipbuilding or railway engineering techniques, but it's the scale that's the issue for DIY.

Makes an adjustable blade type look a better proposition, but the trouble is finding space for the damn thing.

Don't touring cars use adjustable ARBs?

 

[David C]

If you were going to fabricate an ARB, you wouldn't use a bent bar.
You would use a straight bar with arms welded on each end.

Yes most racecars have adjustable ARB, in-car adjustable for those with plenty of £££

 

[fingers99]

Yes, but there are all kinds of space/clearance issues which don't make it at all easy (at least, at the front).

I'd not use weld unless you had to (blade onto pivots, maybe) as all you're doing is introducing heat and creating stress raisers and the need for tempering.

In car adjustability should'nt be that difficult -- or expensive. With a blade type you're only looking at 90 degrees from full hard to full soft, the whole thing will run in roller bearings anyway, with rose joints at the drop arm end. Bowden cable with old radio knob?

 

[allanhelen]

Having waded through the rocking horse droppings, remembering to avoid the hens teeth, them pictures look exactly like what I have in my shed, even down to the paint coming off one side.

Can I expect a full pm box?

Cheers

D

Well.... considering what these things actually cost when they were new and how rare they are i rekon a few really horcore nutters might be in touch...... although it would be nice if someone like Jordan or Oldschool could get hold of it and maybe make copies?

anyway i'll open the bids at £60

 

[rallycinq]

anyway i'll open the bids at £60

You could have got it for less if you'd bid earlier. The PM box was full and its no longer officially mine.

Cheers

D

 

[ycming]

omg, did u really get a full pm box ?????

Ming.

 

[allanhelen]

You could have got it for less if you'd bid earlier. The PM box was full and its no longer officially mine.

Cheers

D

I didn't really need it just trying to bump the price up for you after all these were £160ish iirc when thy were new and they haven't been available for at least 4 or 5 years now

 

[Brooky]

after all these were £160ish iirc when thy were new

Looks like someone got a bargain then

 

[randomizered]

A bit of topic, I saw adz rear ARB he has fitted to his cinq at casstle combe this weekend. Looked a decent setup, and said it was great on the track! Maybe worthwhile trying it out sometime

Kristian

 

[fingers99]

Looked at some of the adjustable blade ones last night (suitable for the rear, I think, if not for the front) and they look very easy to make (at least, if you have a lathe and a mill -- wanna get rich, Brooky?). But I'm not entirely sure that the ones with a blade each side would work as expected rather than as auxilliary springs.

A google for "blade type anti-roll bar" will produce some pics.

Any comments from Tom and Tom?