Its been a while now since I had installed my cam, heads, and intake. Through all the hard hits i've given the motor at high RPM's (excess of 6k, and on stock bottom end) i've yet to experience the famous valve float your suppose to get at those RPMs.. i've read many posts about it and still wondered how I manage to slip through the fine line.. Talking to a old school friend of mine, he was saying that the solid tappet motors may not rev like a roller but they can be run alot harder than a roller because valve float is way the hell up there for a solid tappet.. So I think i've managed to figure out what and why i've managed to slip through it.
My cam is the Crane 444221 2021 cam, it's: intake .533 / exhaust .544 lift cam with 1.6 roller rockers.. valve float 6k.. power band 2000-5500..
While running it at the track i've pushed it harder than 6k while pulling even harder than it was supposedly good for. In my combo, I had forgotten one thing to order and that was a set of roller rockers. I wanted to get it running so I just decided i'd throw some on at a later time.. Well that time has never come and i've been driving it since. The only reason I could come up with why the motor doesn't have the valve float it's suppose to is because of the stock rockers.. basically taking away some of the "Rollyness" lol It's the only reason I could think of. And i'm certain that the motor has yet to because it was pulling other cars at the time it hit 6k.. Jrichker or any other really smart guy care to elaborate on why I could slip through it? Sorry its long, but hey.. i'm off work, tired.. and have nothing to do lol
My cam is the Crane 444221 2021 cam, it's: intake .533 / exhaust .544 lift cam with 1.6 roller rockers.. valve float 6k.. power band 2000-5500..
While running it at the track i've pushed it harder than 6k while pulling even harder than it was supposedly good for. In my combo, I had forgotten one thing to order and that was a set of roller rockers. I wanted to get it running so I just decided i'd throw some on at a later time.. Well that time has never come and i've been driving it since. The only reason I could come up with why the motor doesn't have the valve float it's suppose to is because of the stock rockers.. basically taking away some of the "Rollyness" lol It's the only reason I could think of. And i'm certain that the motor has yet to because it was pulling other cars at the time it hit 6k.. Jrichker or any other really smart guy care to elaborate on why I could slip through it? Sorry its long, but hey.. i'm off work, tired.. and have nothing to do lol