I have been informed that the stock retainers will bottom out and hit the the valveseal/guide when I install CTR cams in a PR3 head. I don't plan on installing CTR valvesprings, but keep my PR3 valvesprings. 7800-8000 rpm is the highest it'll ever see. Basically, the stock rev limiter.

If I can get away with CTR cams, then what other cams can I get away with, or what is the maximum lift that I can use without bottoming out the retainers?

Let me know!

 

not even close.

 

with stock rev limiter, its Ok..

 

you're fine. friend has been running ctr on his b16 for like 6 months and nothing gone wrong so far.

 

Wow, this is music to my ears. I guess if I were to use a set of Brian Crower Stage 2 cams for my B16, then I suppose that it would bottom out then.

CTR cams are lookin' alot better now. Thanks to all that replied.

 

for a small investment. replace your inner valve springs and retainer from an itr. cheap insurance.