methinks i have found "the cam" for my intended use. 276*/282* (245*/250* at .050) .501"/.510" lift, 108* LC, but can be ground different if desired, .018/.020 lash. watcha think (dennis not included) chad

beardliz@msn.com

Isn't that special! I like it too!!!!! C'mon Doc regail us with your sage advice!!!!

Mike


msimpson@millenicom.com

Chad,

Sounds like a great street/strip cam to me. Should be good for at least 5500 RPM on a 225. Check that valve clearance with playdough. I'd go with a bigger intake valve (1.72" or 1.78"), and at least 2800 stall conv.

Smoke 'em,

Lou

madsenl@caltech.edu

Very close to the cam I ordered from COMP, using their custom lobe specs. They have a .904" lifter series in the back of their cam book, and you can order any combination of the three grinds. Mine was speced out at: 274°I/284°E (247°/251° @ 0.050) .518"I/.533"E lift @ 0 lash, 0.018/0.018 lash with a 108° centerline. Used COMP's #995 springs and hit the installed height @ 1.65" exactly. Using F*** 1.78I/1.46E valves from an early 302 engine with COMP's retainers and 10° locks. Had to cut spring seat and guide and use PC valve seals. Hope it works!


sgw041454@aol.com

These specs are derived from a 1.5 rocker ratio (correct me if i am wrong) but arent the stock rockers on slants 1.45? this would drop the lift down a little bit, like to .490 and .500 or so, rite? that is a about .040 and .050 more than i am running now. my first measure will be for coil bind, the second will be for retainer to guide clearance (the longer sbc exh valve is set up at 1.82 installed spring height, which is why i want more lift on the exh side, because I CAN!)and if all is good there, i am gona go for it. the head is done, and i dont wana do any more to it for a while. if the cam dont fit, off comes the head, and start grinding valve reliefs in pistons. (through the guides of a junk head) the convertor is done and in, so it too is staying for a while. took long enough to have that one built! at this point in time i do not desire a bigger intake valve. just more help getting the spent gas out. i feel the stock valve is big enough for now, especially with the amount of back cut i have on them (totally NO lip on the backside) and the 3 angle grind.
the motor is coming out for the cam change, as well as a rope rear main seal, so any further mods will be made at that time. i may do a quick "freshen up" on the motor while it is out. (rings/bearings) it has about 10,000 HARD miles on it now, better safe than sorry. (learned the hard way) got a spare set of new .060 over pistons and rings laying around, hmmmmm. nice fresh motor for clay city?! the cam is going in advanced a bunch, so not too concerned about stall speed.........still awaiting input from doug.??? charlie??

beardliz@msn.com

Really not much to say except give this cam a try and let us know how you like it.

As we all know, with-out a detailed cam events sheet / list it is hard to do any kind of reasonable analisys. I do like the tight lash settings and the fact that it is a .900 dia. lifter profile.

As with fine wine, beer, and other stuff, there is some "personal taste" that also goes into a cam choice, I tend to use "less cam" but give-up a little RPM / HP in order to have a smoother idle and better mid-range.
DD

idle quality is not an issue for me. it idles like crap as is, no big deal. my issue is running out of cam at 4800 rpm. upsets me some. i like rough idle, shaking, brapp,pop, brapp, brapp:) makes people wonder. as you said, personal taste. i will get a detailed list of events from the manufacturer for you. more later...chad

beardliz@msn.com

Lou, check this one out: 280*/284* (245*/251* at .050) .492"/.505" lift, 110 LC. looks like it may come on a little sooner and idle a bit smoother than the other grind i dug up. ya think it will turn 5500 without running flat? it was originally designed as a road race profile, i found two lobes from the same series incorporated into one grind. hmmmmm still waiting for valve events specs from the manufacturer.

beardliz@msn.com

Send me a copy of the event specs. when you get a chance. What is the recommended lash setting?? This one looks pretty good, it should pull trough 5500, who is grinding these??
DD

this is another of their "custom grinds" from what i can gather from the original profile series, the lash is an odd-ball .024/.020 for some reason they call for a looser setting on this particular intake lobe than most others. Doug: check your mail, again.

beardliz@msn.com

Chad,

This cam should run strong to 5500 with the right carb/head/tailgears, and it should idle fine (for you and me that is!). I'm afraid I'm no big expert on cams, I just know the ones I've bought have worked pretty well. I wasn't thrilled with the Crane 0.460" cam though. The MP's have been good, and the custom one <A HREF="mailto:(250@0.050">(250@0.050</A>", 0.540", lash 0.025"-both) in the '64 idles well and goes great up to 6000. I personally feel that most cams are designed with a certain centerline in mind, and that you should degree them straight up to begin with, then make changes as necessary. If you have a good stall conv (>2800), you don't need low-end.

Cheers,

Lou

madsenl@caltech.edu