Rear anti roll bar ????
Turbo Mini Forums

Hi all me again with another question.

Wanting to fit an anti roll bar on the mini but unsure on wot when why where ?

Kad do one but it fits to the back of the subframe and as i havent got one i could make brackets to fit it. Just wanderd how much stress is involved as the tubes arnt very big at the back.

It would be better to fit it where the radius arm bolts but dont no wether they go above ,below or if the exhausts in the way ?

Am i best getting one made like the miglias as they seam to run all kind of different set ups.
Hope some of that makes sence. Any help much apreciated as usuall. Thanks Rick
Added a few pics

Edited by cossierick on 28th Sep, 2007.

I've got a miglia one on mine, www.owensfabrication.com

Team Racing

Do you have any pics jim plz , just to see where it mounts

Thanks

Hi,
You've got one of them there tyres on the wrong way round...
Cheers,
Gavin :)

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My Mini build diary

lol thanks.

I think it will be a case of addapting one that someone already makes or fabruacating one from scratch.

Jims runs inside the boot and could be mounted above your fuel tank possibly.

The other ption is to mount it to the rear on the two bars running down to the rear member. Again, you would need to make mounts and drop links, but a 'standard' one off the shelf could be used as a start.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Thanks for the pic .

Yes going to have to buy one and make it fit just wanderd how much stress was involved with one and if those rear bars would be strong enough as thair not part of the strength just ad on's to mount tank and bits ?

Rick, your car looks more interesting with every photo .... going to be be stunning.

I'd mount the bar above the "heal tube" and then run the arms out to coil over attachments.

Go on, make something ..... not like your scared of fabrication!!!

Every day is a school day ...........

How fast and how expensive ...... the same question...

jim does that bolt through the floor on the subframe or what?? never actually seen one mounted and am considering one for my own car.

cheers

Ant

Ok roger think its best then its fasend were the strength is. am sure il sort somthing . Where does the main rear bar fasten to ?

Il try and get some more pics up.

Rick

Rick, remember to make your mouning adjustable as you won't be able to work out what thickness bar you'll need to start with until you know the final spring rates and corner weights. Once you've got that info we can do a few calcs and work out where to start for you.

Every day is a school day ...........

How fast and how expensive ...... the same question...

Team Racing

Roger if i buy a bar like jims isnt it going to be a wast if its got to be changed for somthing smaller/bigger ?

Rick

thats lovely thanks jim - exactly what i needed to know

Can someone explain in simple terms just what is the advantage in fitting a rear A/R bar?
Regards
Dave

Induces over steer. Rear bars usualy work with front bars as the front bar induces under steer. The overall benefit is a car that has a better attitude in corners, thereby the wheels contact patch is in a better position giving better grip.

Did I get any of that right?

I know many people who have tried front anti roll bars on mini's but have ended up removing them. I don't think many of the miglias run them any more.

Team Racing

Don't know if you got it right Sprocket. That is why I asked.
Just want to know about rear bars at the moment, are they fitted to follow fashion or do they work?
Regards
Dave

The suspension system is exactly that, a combined system. Dampers, springs and ARBs all combine to give you the over all handling.

The main benefit from running ARBs are;

can fine tune the chassis roll at each end of the car individually and independantly of the normal spring rates.

allows softer springs to be used and roll stiffness to be increased by the ARBs ... really useful on rougher surfaces

helps control attitude of the car in corners, especially stabalising the the car on switchbacks (fast direction changes) meaning the dampers can be set up close to ideal for the spring rates as the ARBs effectively increase the instantaneous spring rate on the loaded wheel without adversly affecting the damping (as piston speeds remain the same ... angling the shocks can have similar effects but at the cost of changes in piston speeds)

I'm off out (too the pub) or else I'd go into it in depth ..... will try to post tomorrow, ain't going to be making much sense when I get home .... hopefully!!

Every day is a school day ...........

How fast and how expensive ...... the same question...

Sadly no one makes an adjustable rear bar for the mini or I'd buy one!

The one pictured above looks adjustable to me!
Regards
Dave

It is completely but it's not an off the shelf bar and not something that you could throw on a daily driver. You can get the one I want from the US; about $200 but another $200 postage!
Mmmm...

Edited by Jay#2 on 30th Sep, 2007.

Tell me why it's worth that money, What does it do.
Not being a shit, but, I just would like to know what they achieve, or are they just another way to spend your cash?
Regards
Dave

Pretty much what has been said already, adding rear bar is a way of adjusting the attitude of a car in the corner by inducing oversteer or knocking off some understeer. Imagine being able to do that without touching the other suspention settings on the car.