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Old 10-02-2007   #1
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My Uno project - Rear anti roll bar

Has anyone tried fitting an anti roll bar to the back of an Uno before. My understanding is that you want the rear of an Uno to be as stiff as possible.

One suggestion is to weld a plate onto the bottom of the beam. But this tends to crack and needs re-welding at regular intervals.

Another thing I have seen is an entire new rear beam made of tubular steel (Slappers car). But this could be a bit expensive.

What I am wanting to do is get a rear anti roll bar made and fitted. I want to know if anyone on here has ever done or seen this. If so where did it attach to and what approach was used. We were thinking of fitting it into the rear beam.

My Uno now has its 1498cc X19 engine fitted and running, but we think it has just blown a head gasket, so the head is coming off and we are going to use the opportunity to fit the head from a 1301cc Uno engine (smaller combustion chamber - more compression) and maybe new rings. Its got its lowered suspension and better front shocks. It has a Front anti roll bar and Turbo steering rack.

Along with the rear suspension I am planning on fitting a roll cage and hopefully twin DCNFs.
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Old 10-02-2007   #2
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Re: My Uno project - Rear anti roll bar

This sounds serious!

Blair has fitted a whole lot of different sway bars with different effect. They need to be pretty beefy though. TBH, the plate method has a much larger effect and its hard to beat. It does have the assoiated problems though. My Uno turbo was very nicely balanced. better than any other Uno ive driven.

looks here for rear sway bar

http://www.turbo124.com/forum/viewtopic.php?t=3669

or here for my old beam

http://www.turbo124.com/forum/viewtopic.php?t=892
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Old 10-02-2007   #3
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Re: My Uno project - Rear anti roll bar

Thanks Steve,

I'd forgetten about Blair W's Uno and that is the kinda thing I want to do. I was really interested to see how it mounts to the body. I will see how much that will cost me, if its too much I'll probably just go for the plate technique.

And dont worry, I'm not getting too serious I think I'll only put in a half cage (so I dont die doing a hill climb or something) and a cheap clubsport harness. The engine is a real on a budget type job, but I do want to put on twin carbs because they just work so much better.
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Old: 1996 Bravo SX, 1994 Punto 90ELX, 1984 Uno 70S, 1989 Uno 70SL, 1988 Uno 70SL, 1986 Uno 45 FIRE, 1987 Uno 45 FIRE, 1987 Uno 45 FIRE, 1989 Uno 45 FIRE, 1989 Suzuki FA50, and a 1980 Mini 1000
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Old 10-02-2007   #4
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Re: My Uno project - Rear anti roll bar

Roll protection would be a good idea. But the real trick is, not to crash!
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Old 11-02-2007   #5
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Re: My Uno project - Rear anti roll bar

Yeah I'll try not to crash but as you nearly showed us at Taupo a few weeks back, sometimes you dont have much choice...

I am aiming to make my car a safe, fun car to compete in. I'm not likely to win anything with it, but at least I shouldnt come last.

The plate on the rear beam, did you have that on your car? Did it give you any problems? I am starting to think that could be my best option.

I've been working on my new cylinder head today, smoothing out all the ports and clearing away all the carbon buildups. Do you think slightly rounding the edges of the combustion chamber is a good idea?
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Current: 1987 Uno (1580cc), 1997 Brava ELX, 1990 mk1 Uno 45, and a 1973 Mini 850

Old: 1996 Bravo SX, 1994 Punto 90ELX, 1984 Uno 70S, 1989 Uno 70SL, 1988 Uno 70SL, 1986 Uno 45 FIRE, 1987 Uno 45 FIRE, 1987 Uno 45 FIRE, 1989 Uno 45 FIRE, 1989 Suzuki FA50, and a 1980 Mini 1000
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Old 11-02-2007   #6
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Re: My Uno project - Rear anti roll bar

Hi JJ, I currently race an uno 1500cc in the brscc LMA Euro saloons, and have been developing it a lot over the winter. I have just acquired a complete suspension set-up from Redline Racing, who have been race leaders in the Fiat Challenge in UK for a while. The kit consists of a rear beam which has a bespoke rear anti-roll bar fitted. This is fully adjustable, but also removeable for wet weather racing. In addition to that, a four avo adjustable shocks with 2.25" springs. I am about to have the rear beam etc fitted , but could take some pics of the roll bar 1st if ya like. Engine wise, I have spent a bloody fortune on it: lightend/balanced bottom end, full race head from Jupiter Racing, piper 320 cam, and twin 45 weber dcoe's. I have also been luck enough to get hold of a mk1 turbo box that has had a close ratio gear kit fitted. If you want any info, pm me by all means. I did have the rear beam plated up, and it does help, but having anti-roll bar gives adjustablity! I am hoping to be a serious contender for this years championship!
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Old 11-02-2007   #7
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Re: My Uno project - Rear anti roll bar

Quote Originally Posted by unoracer View Post
Hi JJ, I currently race an uno 1500cc in the brscc LMA Euro saloons, and have been developing it a lot over the winter. I have just acquired a complete suspension set-up from Redline Racing, who have been race leaders in the Fiat Challenge in UK for a while. The kit consists of a rear beam which has a bespoke rear anti-roll bar fitted. This is fully adjustable, but also removeable for wet weather racing. In addition to that, a four avo adjustable shocks with 2.25" springs. I am about to have the rear beam etc fitted , but could take some pics of the roll bar 1st if ya like. Engine wise, I have spent a bloody fortune on it: lightend/balanced bottom end, full race head from Jupiter Racing, piper 320 cam, and twin 45 weber dcoe's. I have also been luck enough to get hold of a mk1 turbo box that has had a close ratio gear kit fitted. If you want any info, pm me by all means. I did have the rear beam plated up, and it does help, but having anti-roll bar gives adjustablity! I am hoping to be a serious contender for this years championship!
now this sounds awesome! pics please of the rear beam and all components and pics of it fitted. also, have u got the contact details for theis redline racing? very very interested in getting a setup like this for my uno

cheers

Dunc
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Old 11-02-2007   #8
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Re: My Uno project - Rear anti roll bar

Hi JJ and Steve

Good to catch up with you guys at Taupo.
On our first Uno we welded up a standard beam and did an lot of cutting and modifying of the spring mounts to fit height adjustable platforms. This was OK but in the end the beam was really HEAVY!! With the second car we decided to have the tubular setup made as it gave the following advantages: Light weight(moly), much stiffer, we were able to set up spring mounts on platforms much more simply, the stub axles are bolted to the beam so we can setup camber and toe with shims precisely, and finally we knew the beam would be straight!!(we looked at lots of SH ones and most will be a bit bent i would think)
Without getting too elaborate in terms of adjustable anti roll bars, this works well for us, and simply by changing springs we can soften or stiffen up the rear for different setups.
Hope this helps
Regards
Slapper 2(Tim)
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Old 11-02-2007   #9
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Re: My Uno project - Rear anti roll bar

Hi Dunc,

The kit has only just arrived at the garage where the race car is, so I will nip up on Wed/Thurs to take some pics of it. Redline Racing only had one beam/set of avos for sale, as they are still racing their other unos in the Fiat Challenge this year, but I will ask him if he can help/point you in the right direction of anyone else that may have at least the anti-roll bar etc, and will post when I have news. It sounds like there are still a few people medalling with unos out there!!
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Old 13-02-2007   #10
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Re: My Uno project - Rear anti roll bar

Quote Originally Posted by unoracer View Post
Hi Dunc,

The kit has only just arrived at the garage where the race car is, so I will nip up on Wed/Thurs to take some pics of it. Redline Racing only had one beam/set of avos for sale, as they are still racing their other unos in the Fiat Challenge this year, but I will ask him if he can help/point you in the right direction of anyone else that may have at least the anti-roll bar etc, and will post when I have news. It sounds like there are still a few people medalling with unos out there!!

ahhh thanks mate really appritiate that.

as im wanting to fit coilovers and a rear anti roll bar to my UT

Dunc
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Old 14-02-2007   #11
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Re: My Uno project - Rear anti roll bar

Quote Originally Posted by slapper View Post
Hi JJ and Steve

Good to catch up with you guys at Taupo. Without getting too elaborate in terms of adjustable anti roll bars, this works well for us, and simply by changing springs we can soften or stiffen up the rear for different setups.
Hope this helps
Regards
Slapper 2(Tim)

Hey Tim, yeah that was some fun. Ive got a some video footage but the quality is total rubbish.

Your beam is pretty trick. The other way to do it is to fit independant. Not as hard as it may look.
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Old 14-02-2007   #12
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Re: My Uno project - Rear anti roll bar

If you had a choice Steve, and others; what rear set up would you nick?

I was under an Alfa gtv at weekend, and i thought to myself, i wonder...

Tom
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Old 14-02-2007   #13
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Re: My Uno project - Rear anti roll bar

We have been looking at a Delta rear end. Because its simple and someone has already done it. A very long term project.
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Old 01-03-2007   #14
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Re: My Uno project - Rear anti roll bar

Just got some more photos of the car after going racing this weekend. On the rear I think this is the best way to do it as I do not believe an antiroll bar would work very well on the original beam as they are designed to work with independent suspension not a ridgid beam. But I do think an independent rear lick steve talked about would be great,
Slapper
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Old 02-03-2007   #15
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Re: My Uno project - Rear anti roll bar

I think an anti roll bar is better than nothing though. The original beam is not really totally ridged. Its a torson beam, it twists to imitate how independant trailing arms would work. It actually twists quite easily. I have tried a solid ridged beam, it was terrible. Unstable and no grip.

Slapper, your Uno looks sweet round corners. Im sure the beam works well, Id like to know exactly how its working etc.
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