Do I need trailing arms on my custom IRS chassis?

[onevoice]

Originally Posted by ProTouring442

Then again, most of the parts we are using were not designed for the HP, torque, cornering ability, etc that we put them through.

The new vette and viper parts are

Originally Posted by ProTouring442

Corvette utilized the half-shafts as the upper link through the C-4

The half shaft as the upper link isn't the problem I was concerned about, I was more looking at how the upright controls torque inputs, and for that, the vette used upper and lower trailing links. The C3 used a trailing arm.

Originally Posted by ProTouring442

Jag used the same basic suspension through to the new millennium.

We upgrade leaf sprung cars (hell, that dates back to the model T), trailing arm/solid axle (on GM cars from 1958), truck arms (yeah, they were meant for the HP we use), etc. So to say that one of these rears is, by the nature of its original use, somehow automatically unsound is... well... unsound.

The only pictures of current performance Jaguars I can find (which incidentally are 500+ HP) use upper and lower A-arms, with a toe link, as is the current state of the art. There is nothing wrong with an old design, as long as you keep in mind its limitations, and incorporate fixes in the new usage.