Cam Question? - Team Camaro Tech
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post #1 of 6 (permalink) Old Apr 1st, 04, 02:13 AM Thread Starter
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Heres what the speed shop man suggest.Adv dur 292 292 -244 244 valve lift 501 501 110.0 This is with a 383 flat top piston 68cc airflows need intake and carb ,disrbutor.Is there a small cap with vacumm advance made?How about the cam?com cam magnum.
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post #2 of 6 (permalink) Old Apr 1st, 04, 04:27 AM
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Greg
 
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I am sure others will disagree, but the 292 Magnum has a bad reputation as a cam that chops like all get out, but doesn't make the most power (especially in lower RPMs). It is an "old school" grind. I would think you would be much happier with one of the Xtreme Energy grinds. Maybe the 284 if you want a big one.

I've had no first hand experience with it but a buddy ran the 292 in a 406. A few years later he built a different engine that had 2 points less compression, less stall, but better heads and an XE274. The XE274 ran quicker at the track plus it could run on pump gas.

69 Camaro, 3650lbs., 400ci, TH400, Coan 10" converter, 3.50 gear
D1SC, pump gas, 9:1, 10 PSI, Water/Meth injection
1.325 60', 5.988 @ 115.4 (carb)
Switched to Super Sniper EFI 2019
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post #3 of 6 (permalink) Old Apr 1st, 04, 06:24 AM
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Eric
 
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Too much cam for your compression ratio. I think you would be better served with a more agressive grind that has less seat duration.

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #4 of 6 (permalink) Old Apr 1st, 04, 09:28 AM Thread Starter
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Can you recommened some choises Lunati? I looking for drivablity street some stip a little over 400 hp and 425 torqe?or comp.ect.
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post #5 of 6 (permalink) Old Apr 1st, 04, 09:53 AM
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I had the 292 cam in a 350 once before. It did have a very choppy idle, but if you weren't turning at least 3500 RPMs, the engine would be sluggish if you got on it. The engine ran great at higher RPMs; it would easily turn 7000; that's what finally killed it.
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post #6 of 6 (permalink) Old Apr 2nd, 04, 05:24 AM
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Your compression will be in the neighborhood of 10.5-1. 400hp/425 ft-lbs of torque? Noooo problem. I'm thinking something like an XE284 from comp cams, or if you want lunati, something along the lines of the 285 "thumper". It is 235/[email protected], .507/.507, 108 lsa, ground 4* advanced. It is a pretty agressive cam but would make brutal midrange in a 383. A 2800-3000 rpm convertor, and a performer rpm or maybe even a vic jr. intake and a 750 carb of your choice. For a small cap HEI, do a search on Dave Ray on this site. I hear he builds them and those that use them have been very happy with them.

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