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Author Topic:   solid cam recomendations
wingnut
Dirt Maniac

Total posts: 134
posted January 13, 2005 08:41 PM  
ok , I know this is a loaded question, but sometimes we get in a "rut " of using the same old thing and would like to find some new opions.

our basic claimer is:

383 010 block
hyper pistons
stock rods or 6 I beam
iron eagle 215 ( some bowl work }
scat crank
285/295dur 533/555 lift 106
- don't have ramp in front of me -
cam is rated for 7200 rpm on card

3/8 -1/2 mile start out wet,90% of time end up dry. we try to turn 7000 rpm at let off point.

I realize there are other variables, just wanted a few ideas. Thank you

autoshop
Dirt Freak

Total posts: 298
posted January 14, 2005 10:46 AM  
what's you at .050 duration? and where do you want to improve, bottom ,top, mid range?
Gas or alky .
Wet to dry ? how dry?
desert dry or rubber slick,just dry over from being tacky.

wingnut
Dirt Maniac

Total posts: 134
posted January 14, 2005 01:54 PM  
duration @ 50 250
260
Alky

between dry over from being tacky{mostly} to dusty dry, hardly ever takes on rubber.

Would like to be better from bottom off to mid straight.
Thank you

stockcar5
Dirt Forum Champ
Total posts: 578
posted January 14, 2005 03:35 PM  
try camcraft. they are a forum sponsor. good tech advise and decent prices.

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www.geocities.com/dirtstockcar5

racin78p
Dirt Freak

Total posts: 333
posted January 16, 2005 04:07 AM  
Yes to camcraft! I just ordered a new cam/rockers for the up coming season. I talked with Charles for quite some time, and he can for SURE help you out. I won't say what I'm getting, but it is going to be nice. Race on.

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racin78p
if it ain't fun, then don't run

autoshop
Dirt Freak

Total posts: 298
posted January 16, 2005 06:04 PM  
I would have less exhaust duration at .050,
But for the current cam use 1.6 rockers on the intake, advance cam 6* add more lash to valves.

Raz_900
Dirt Forum Champ
Total posts: 635
posted January 18, 2005 07:32 PM  
What CR does it turn out to be? How far in the hole are the pistons? Head CC?

Without buying new parts, you could possibly deck the block and heads to get anywhere from .5 to 1.5 CR. If you need more off the corners, there's 4 options. More CID, Less cam, more CR or more gear. 1 CR point raise will add about 4-5% power through the entire powerband. If it can take it (fuel wise), one of the best bangs for the buck.

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