About spring rates....
I am yet to mesure the corner weights of the car but i am guessing that i would have 300kg per front wheel and 250kg per rear wheel giving a total mass of 1100kg. bearing in mind that i does have a V6 rather than the pinto in the front (+50-60kg) and 4 link rear and the4 front suspensions and geomatry has been altered also.
Currently i am running 150lb in the rear no swaybar and 400lb in the front with the standard mk2RS swaybar. Under exceleration if you go to turn it tends to dive quite bad but then you are just crusing it is a lot better. I am yet to do a proper wheel alignment but that is close. I am hoping that is has to do with miss matched spring rates or i might have a lot of reworking to do on the front end geomitry.
The front and rear have about the same droop with the curring spring rates (25-30mm) so i would have thought they should have been ok. The other thing i am yet to try and a sway bar in the rear to see if that helps and i may have to make the 4 link pivot point adjustable so i can change the longdatudanal roll center.
I am once again guessing that i should be looking for about 200lb in the rear and 300-350lb in the front.
any help and sugestions in sorting this handling issue would be appreciated and arm me with a better perspective when i go to chase the issue for real. thanks, David