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335 Series {351 Cleveland}

Fun with cams...

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Author	Topic: Fun with cams...
Nos351C Gearhead Posts: 3000 From: Rohnert Park, CA USA M&M member#591 Registered: JUL 2000	posted 09-13-2000 12:43 AM Alright guys, I am wavering on the cam choice for my motor... right now, I am about set on a custom ground cam from lazer cams out of memphis... it specs out @ 251/254 @.050 294/295 adv. .628/.636 lift My brain and gut are telling the motor will be waaaaaaaaaay over cammed .... The problem is that when I called the comp tech line, they spec`d the 306S which is [email protected] and .640 lift... I have tried numerous times to get through to crane, lunati, clay smith and ultradyne... My gut tells me I want about [email protected] and about .570-.590 lift.. I want solid lifters, compression will be just a touch over 10:1, and pump gas (off the bottle) is preferable and other goals are: 10's on the bottle (200 horse shot) low 12's N/A street driveable (3X times a week) idle somewhere under 1K in gear (with 4 corner idle circuitry) I feel to attain my E.T goals, realistically a redline of about 7200-750 isn't unreasonable... I also believe, though not the bst for nitrous, that a 108 Lsa wil lbe needed to drop the dynamic Compression. Rear gear is 4.11's, trans is a c-4 convertor will be picked after the cam, slicks look like they will be 26x8's, I don't think I need the 28x10's yet... any thoughts? (feel free and call me an idiot, I probably deserve it ) TIA ------------------ Marcus Fast, Reliable, Cheap.... Pick any TWO of these words. 68 Mustang, still in purgatory. BOYCOTT EXCESSIVE MOTORSPORTS
denny Journeyman Posts: 69 From: Northfield NH USA Registered: JUL 2000	posted 09-13-2000 08:27 AM Your cam should be close to over cammed for the street. I run a Comp cam custom grind. Duration is 246 int. 256 ex. @50 lift is .571 int .605 ex. valve lash is .020 I have a torquer intake and 850 holley closed chamber 4bbl. heads.(cleanedup) I run a Ross flat top piston compression is just under 11:1 All this is in a 3650 # 73 Mustang that has been a best of 11.74@ 116.82 mph. Peak power was at 6800 and I shift @7000 ------------------ D French 67 427 Fairlane(A/SA) 73 Mustang 351c
Butch Jennings Gearhead Posts: 622 From: No. California Registered: APR 2000	posted 09-13-2000 10:33 AM Go with the 112 lobe center, it will calm it down a bit for n/a and will be a ton happier on the jug. I wouldn't worry too much about it being overcammed, that Clevy motor likes alot of cam. At 10 to 1 it shouldn't rattle with that much stick at 112. Butcher ------------------ Butcher's Home Page
Moneymaker Administrator Posts: 25052 From: Lyons, IL, USA Registered: MAY 99	posted 09-13-2000 11:17 AM Not over cammed for a 351C. Alex ------------------ Alex Denysenko Co-Administrator and Moderator Fleet of FoMoCo's too long to list! http://superstockers.homestead.com/week.html
Nos351C Gearhead Posts: 3000 From: Rohnert Park, CA USA M&M member#591 Registered: JUL 2000	posted 09-13-2000 11:43 AM Wow I guess I spent too many years building small block windsors..... the lazer cam has a 110 LSA Thanks guys ------------------ Marcus Fast, Reliable, Cheap.... Pick any TWO of these words. 68 Mustang, still in purgatory. BOYCOTT EXCESSIVE MOTORSPORTS
racin jason Gearhead Posts: 291 From: Sidney, OH Registered: JUN 99	posted 09-13-2000 05:20 PM I have the comp 294S in my 4v cleveland. I am very happy with it my spings are too small right now but the engine pulls hard past 7000 till the springs float out. I drive it quite a bit, and when its tuned up it will idle about 800 in neutral( I have a four speed). Cam specs are [email protected] and .605 lift 110 lobe sep. it is single pattern. ------------------ Jason Thompson 1973 Mach 1, Q-code 4 speed 3.25 gears 1989 Mustang LX coupe 2.3 3.45 gears, wants to be a 429 [This message has been edited by racin jason (edited 09-13-2000).]

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