well my valve springs finally succumbed to the power of the large by huge cam......

the car has been down on power for about 2 weeks, as i had lost about 5mph of trap speed, but the car was still consistant and ran ok...

so i was pretty sure it was the springs, so ordered a new set of comp springs and some new ARP rocker studs

the old springs were a GOOD 3/16" shorter than the old ones.....

they got their will to live ruined finally....

throttle is nice and snappy again though, time to get it back to the track/dyno and see

 

Unfortunately with these solid rollers and all their seat pressure a yearly spring change is a MUST for tip top performance and depending how many rounds you go and tracks you run, twice a year is another good idea. I've personally seen a set of springs pick a car up .3 and the pressure was not all that far off from when the springs were new.

 

ya but this is a hydraulic roller lol

 

LOL, ouch They were'nt K-Mtions were they? Seems kinda short lived imo for a hydraulic roller...are you using a rev kit too?

 

they're comp cams 987-16's dual spring with a damper....344 rate

3 years and like 15-20K miles though, and hundreds of passes....i beat them pretty good....

the cam is large too, .620 lift at the valve, 248/248 at .050

and yes im using the AFR hydra rev kit...but only since this february......and i gained 50hp with it, at the WHEEL lol.

so its really not THAT surprising...alot of people told me they wouldnt last close to that long

 

With that many miles, yrs, passes, etc...they did really really well

 

thats what i was thinkin