rear engined suspension tuning (spring rates etc)

[hot66]

I have just been reading an article on suspension tuning focusing on spring rates & anti roll (sway) bars. This article was published in Sept 2001 edition of Cars & Car Conversions magazine (a very long standing & respected UK publication)

Their agument was when cornering in a rear engined car, & asuming front & rear spring rates were the same, more weight would move across to the rear inducing oversteer. The advice in the article for rear engined cars (porsche 911's for example) was to tune the spring rates allowing more weight transfer to the front of the car to offset the problem of oversteer.

It was recomended to run harder springs at the front than at the rear. Anti roll (sway) bars would then be used to fine tune the balance.

Whenever i hear people talking about spring rates on VW's, they seem to always increase the rear spring rates. If the above is correct why fit the larger dia 944 torsion bars?

Does anyone here have real life experience with which spring rates to use at the front & rear?