Maybe some members familiar with the independent rear suspension on the MKIV roadster can offer some advice as to what strength springs to use. This is a 2015 version of the MKIV which I recently purchased from the original owner who never started any assembly work. The kit has 500 lb. springs in front with IRS. The wheels are 9” and 10-1/2”.
There seems to be two recommendations on which rear coil-over springs should be used for the IRS, the printed manual shows 350 lb. but the on-line manual shows 750 lb. coil-overs. The springs delivered with the kit are 750 lb. As this is being built as a street car, probably not driven on the track, it seems 750 lb. springs would be pretty stiff.
Afraid I’m in over my head on this one and would like some help. Current progress is: the front suspension and brakes are in and completed, the rear pumpkin, CV axles, and lower control arms are in place.
Thanks, Charles Mowry