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What are Anti roll bars made of
grassracer - 2/2/08 at 01:52 PM

Ok I know they are usually steel but is it some kind of special stuff, looking into getting one made or better if possible making one for my Autograss project. I know they are available from suppliers but I'm tight (sorry i mean I'm a locoster!)


NS Dev - 2/2/08 at 01:59 PM

I use mild steel for the anti-roll bars on my grassers!

Use thickish wall seamless mild steel tube, its just the job.

Think the stuff I used was 11/16" OD by 3/16" wall.

You can use 4130 steel tube or all manner of spring steel grades, but mild will be just fine.


907 - 2/2/08 at 04:30 PM

If I remember the Morrie Thou had torsion bar front suspension.

I can't help thinking if these could be utilized as ARB's?

Too long, too short, too fat? Maybe they could be reduced in diameter in the lathe?


Thoughts anyone?

Paul G


Peteff - 2/2/08 at 05:16 PM

Old Renault 5 used them on the rear as well, they would be nice and soft if you can find any.


Delinquent - 2/2/08 at 06:23 PM

One of the newer Alfa's also had torsion on the front (75 maybe?) so should be a ready supply of material there!


John Bonnett - 2/2/08 at 06:38 PM

If you can find one, try a Morris Marina anti roll bar. I shortened the arms of a Marina one and fitted it to my racing A40. It absolutely transformed the car from being a natural over steerer to completely neutral and no roll whatsoever.

Failing that you can buy new ones in all different diameters for racing MG Midgets.

John


907 - 2/2/08 at 07:45 PM

quote:
Originally posted by John Bonnett


Failing that you can buy new ones in all different diameters for racing MG Midgets.

John





John...... Shame on you..... Buy new ones indeed.



Take a thousand lines.

"To be a Locostbuilder I must THINK like a Locostbuilder"





Paul G


NS Dev - 2/2/08 at 10:31 PM

here you go, see the grey bar in the photo on the rear of my old grasser. Made from seamless mild steel tube, warmed with a big blowlamp and bent by hand in a vice, no pipe bender needed.

Bearings are nylon blocks drilled and split through the middle.

The drop link hangers are home made and adjustable along the "blades"
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John Bonnett - 3/2/08 at 08:49 AM

907 said:

John...... Shame on you..... Buy new ones indeed.



Take a thousand lines.

"To be a Locostbuilder I must THINK like a Locostbuilder"

Okay Mister, you've got me bang to rights. I admit everything, I'm not a Locoster I'm a spy form the S...a group.

I'll come quietly..........


britishtrident - 3/2/08 at 09:46 AM

Mild steel is fine -- spring steel is best but introduces heat treatment issues so stick with mild steel.


grassracer - 3/2/08 at 05:09 PM

Cheers guys, thats just the sort of thing I was looking for NSDev...homemade it is then