BQTransAm

iTrader: (1)

I bought a camaro with the TSP Torquer Cam in it, and it has PRC Dual Valve Springs.

How often should these be changed?

I believe the specs on the cam are 233/233 589. 598 112lsa

BQTransAm

iTrader: (1)

omg no one knows the answer to this?

PREDATOR-Z

There is no expiration date on springs.
Best is to have them spec checked and go from there.
Or just throw a new set on and sleep tight.

cenTX-LS1

iTrader: (1)

Id be comfotable w/ about 15k before I swapped in another set of prc duals. Start fresh and check once a year.

Dom

iTrader: (2)

When checking what do you look for?

BQTransAm

iTrader: (1)

thanks guys.

GuitsBoy

iTrader: (4)

It depends on how you drive it. Springs might wear out after 5K worth of track driving, or they might survive happily after 30K+ highway driving. Only way to be sure is to pull a couple and have the pressures checked.

slt200mph

iTrader: (42)

I am running the torquer cam (1st design) and the PRC dual springs and have about 19,000 miles on them it is a dailey driver and no sign of any problems. Getting ready to change the heads and will not using them much longer. But I an using a new set of PRC duals on the new heads too. They have given me good service so I am staying with them.

Brian @ Texas Speed & Performance

iTrader: (1)

I'm running the MS3 and have about 25-30K miles on the springs. I'll pull a spring and check it...someday.

Brian