Are spring rubbers legal to race with?

I want to tighten the car up a little more, however I do not want to use a softer rear spring. It is a pain to replace the front coilover springs so I wanted to try using spring rubbers (like NASCAR) to increase the front spring rate. Are they legal to race with?

http://www.longacreracing.com/images...ng-Rubbers.jpg

I was thinking of going to 360 Motorsports here in town tomorrow to get a couple of sets.

Quote:

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Originally Posted by HoustonNW

I want to tighten the car up a little more, however I do not want to use a softer rear spring. It is a pain to replace the front coilover springs so I wanted to try using spring rubbers (like NASCAR) to increase the front spring rate. Are they legal to race with?

http://www.longacreracing.com/images...ng-Rubbers.jpg

I was thinking of going to 360 Motorsports here in town tomorrow to get a couple of sets.

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Yes, I'm almost positive you can run spring rubbers.


JJ

if springs are open, then they'd just be funky springs with the rubber...

Spring rate and bushing material is open... This is a bit of both, but still wide open.

I wouldnt have an issue with those.