BD Race Springs - Rear Rate

[Cashburn]

So the blue race springs I have are 800#.

A set of red "stock" springs of a very recent car are 250# ... they used to be considerably firmer.

[spookypt]

Originally Posted by Cashburn

So the blue race springs I have are 800#.

A set of red "stock" springs of a very recent car are 250# ... they used to be considerably firmer.

OK well I have found the answers. Thanks Reg.

The factory race springs (Mine which are RED) were rated at:

600 lbs. on the front
1000 lbs. on the rear

BDR found that the supplier of these factory springs was not very accurate on their spring rates and BDR have now switched to using Eibach springs on their race cars.

Seems the current race springs tech is:

450 lbs in the front
800 lbs in the rear. (Which would marry up to what you're saying above Cashy.)

We can now put this rest.... Matt

[spookypt]

Well that's a curve ball. Thanks Cashy.

The parts site shows them still as red.

Backdraft Parts - BDR Race Springs - Performance Suspension - Suspension - Products

Do they have the poundage stamped on the spring by any chance?

[wrogers55]

Just a FYI and more info for the discussion. Got this from Tony Martin in 2008 on request.


FRT SPRINGS

ROAD 11-12MM WIRE
RACE 13-14MM WIRE

REAR SPRINGS

ROAD 17MM
RACE 19MM