Supercharger Intake / Pop Off Valve Issue

In a "racing" application where the blower is overdriven, running on race gas, has anyone experience issues with the pop off springs loosing their tensial strength or collapsing slightly ?

What are your torque setting for the pop off valve, approximately 25 ft/lbs ?

Anyone switch to a similar steel valve spring instead of the stainless steel spring provided with the blower intake ?

I am aware many use the burst panel, however; I do not wish to go this route as of yet...

Thanks......

 

There is a previous thread about this with lots of info.

 

BTT --- What is the link, I have found no such subject matter before my post....