on a rear swing arm design (sierra). bear with me on this one lol. the wheels are stright and swing on a pivot. you can only adjust the camber. dont no if iam 100% right. but what cars use this design and is it any good. and on irs the wheel gos throught diffrent angles some bad some good. but why is one better then the other.
thanks adam

[Edited on 29/5/07 by oadamo]

You can adjust a swing arm for static camber and toe. IRS you can adjust static camber, dynamic camber and toe. The main factor is space really. GTM IIRC use a swing arm, but they have the engine in the boot. Most use IRS as it's easier to make and get right. And since you have to make a cage for the diff, you may as well mount the A arms at the same time.

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Originally posted by DIY Si
You can adjust a swing arm for static camber and toe. IRS you can adjust static camber, dynamic camber and toe. The main factor is space really. GTM IIRC use a swing arm, but they have the engine in the boot. Most use IRS as it's easier to make and get right. And since you have to make a cage for the diff, you may as well mount the A arms at the same time.

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Toe-in changes as well as camber with this set up --- not good.

It can be made to handle well in a given set of conditions but has a justified reputation for snap oversteer on greasy surfaces.

It has been used by Rootes (Imp), various older BMWs & Mercs, Triumph, Austin (3 litre), Davrian, Clan, Simca, Fiat.

The Sierra set up is awkward too big and heavy.