Spring rate for rear coilovers

[F4P]

hello obiwan and what about QA1?

less expensive than bilstein and koni..

[Wally]

The 944 cup racers use 300-400 lbs for rear set-ups...
That would be a start I guess (emphasis on 'guess')

[Wally]

I was doing some calcs on the rear spring rate for my coilover installation and recall a value of 360 lbs/in.

Originally Posted by Wally

The 944 cup racers use 300-400 lbs for rear set-ups...
That would be a start I guess (emphasis on 'guess')

So, I wasn't too far off Sandeep?
4"wheel travel seems quite a lot though (from stand still to max compression). I think 2 or 3 would be more likely?

[Obiwan]

Originally Posted by F4P

hello obiwan and what about QA1?

less expensive than bilstein and koni..

Hi F4P, I think we "know" each other from an other germanlook forum
I'm looking closely your progress on SB high quality parts production. (I'll buy from you the uniball link for my 944 aluminium arms but I'm also very interested in your camber plates, front coilover studies. I think I'll also contact to discuss about callipers brackets to adapt my 996 callipers onto the beetle)


QA1 is also an alternative coilover solution. I' haven’t any feedback on QA1 quality. In addition I expect an issue between coilover body and the 944 arms. QA1 coilover are "generic" and the lower mount hole is cantered and not misaligned as the Bilstein is.

I've also contacted Intrax in Netherlands to have some information on their RAS & 1K2 coilovers.

Bilstein Escort cup rear coilover
with helper spring: $875
w/o helper spring: $745

Koni cup coilovers (w/o helper spring) : $735