As you may remember, I was having problems with a collapsed lifter that was making a fair amount of noise (enough noise that I haven't driven it for a couple weeks, I was afraid it was going to leave me stranded). In order to try and fix this problem once and for all, I bought new lifters (Comp Cams high energy lifters) and new valve springs (Comp Cams 26918 "Beehive" springs). Just for kicks, I took a picture right before doing the springs for the last cylinder, so you can see what the size difference is between the springs I was using (AFR "upgraded" stock springs, #8032) and the new beehive springs. Pretty amazing:
The good news is that the valvetrain is almost silent now, just a hint of rocker noise, as you would expect from a roller rocker setup. This is the first time since I put on my AFR's that there hasn't been enough clatter to hear through the firewall and bouncing off things as I go by...
The SOTP meter isn't sure if there has been any effect on horsepower, but it feels plenty zippy. Weather permitting I may try to hit the track next weekend to see how its running right now, and I'm definitely going to hit the dyno to see where I'm at compared to before. I'm also thinking of picking up some Oil Extreme to dyno test, just to satisfy my curiousity.
Dave
The good news is that the valvetrain is almost silent now, just a hint of rocker noise, as you would expect from a roller rocker setup. This is the first time since I put on my AFR's that there hasn't been enough clatter to hear through the firewall and bouncing off things as I go by...
The SOTP meter isn't sure if there has been any effect on horsepower, but it feels plenty zippy. Weather permitting I may try to hit the track next weekend to see how its running right now, and I'm definitely going to hit the dyno to see where I'm at compared to before. I'm also thinking of picking up some Oil Extreme to dyno test, just to satisfy my curiousity.
Dave