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Author Topic:   Short Duration Cam in SBC
chickenlittle
Dirt Full Roller

Total posts: 64
posted August 18, 2005 08:47 PM  
Anyone try a short duration cam with a LCA of 108? I wanted to try something with around 230int 240exh @ .050. Looks like it would give a lot of bottom end torque to pull off tight corners with stock heads with smaller valves. Shouldn't have to pull as much gear to get it to be fast. This is with solid lifters. It seems like most cams don't kick in until around 5500 or 6000 rpms. Nobody makes a cam like this, so I guess I would have to have a custom grind.

leapinlizard
Dirt Freak

Total posts: 402
posted August 19, 2005 07:50 AM  
Short durations and tight LSA's go against current trends.

nine finger
Dirt Forum Racer

Total posts: 76
posted August 19, 2005 08:11 AM  
you are dead on. i have run a lot of cams as you have described. they work for ford and they work with chevy. i usually go with 106 centerline and run it several degrees fast

97dirt
Dirt Forum Racer

Total posts: 94
posted August 19, 2005 01:06 PM  
Give Howard Cams a call, they have some short durations that make excellent torque!!!

juliaferrell
Dirt Freak

Total posts: 370
posted August 19, 2005 06:30 PM  
My opinion: One of the biggest problems a home engine builder has is using too large a cam.

chickenlittle
Dirt Full Roller

Total posts: 64
posted August 19, 2005 09:52 PM  
Thanks for the input. I have ordered a custom grind based. It should give a ton of low end torque based on a engine dyno software program that I have used. Looks like most of the cam companies sell cams for "built" engines. Most are set up for more HP instead of torque. Also they do not kick in until you reach some high rpms. With a claimer motor on a budget it does not add up. The is why you see so many hand granades. You have to screem them and they come appart. I choose to run an engine for a long period of time and not abuse it. I have my setup geared to top out at 5500 rpms. We'll see how it works out in a couple of weeks.

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