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Old 08-05-2009, 07:53 AM
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Street Engine w/ Boat Cam

I've come down to a cam that i believe is suitable for my Set Up, however, its a "boat cam" (comp camXM278H). It's going in a 383 with 10.6 compression, 3:73 gears, 3000 stall, AFR/Broadix 195 heads, airgap intake,750 carb,1.52 rockers, 87 monte carlo, Will see street most of the time (some strip) so I wanted a cam where low-end torque is Present.... A cam with a nice racey (rough) idle. Looking for 500/500 HP/TQ....Does anyone oppose this set up; Are there dyno numbers on this cam(can someone run a dyno sim); And any other cam sugestions?
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Old 08-05-2009, 09:52 AM
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I believe you'll find that the reason this is a "Boat" cam, is because it is designed to run at WOT. I would bet that on the Street, for everyday use, it will run lousey...FWIW...
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Old 08-05-2009, 01:24 PM
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It'a Sweet Camshaft

Hey bud, I thought the number sounded familiar. This is the same cam I have in my boat engine. It is plenty streetable in a car engine. Has a nice lope, will idle down to 500-600rpm,tachs up real quick. The only difference between it a the same car grind is the 112degree LSA vs 110 LSA. Helps w/low end and idle quality. But,not wanting to bust your bubble,It' not gonna make 500hp. Maybe 400+. If you want a recipe for a 500hp/500tq 383,see the March 2005 Hot rod magazine article "The 500/500". Hope this helps.olnolan
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Old 08-05-2009, 07:50 PM
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Quote:
Originally Posted by BG383
I've come down to a cam that i believe is suitable for my Set Up, however, its a "boat cam" (comp camXM278H). It's going in a 383 with 10.6 compression, 3:73 gears, 3000 stall, AFR/Broadix 195 heads, airgap intake,750 carb,1.52 rockers, 87 monte carlo, Will see street most of the time (some strip) so I wanted a cam where low-end torque is Present.... A cam with a nice racey (rough) idle. Looking for 500/500 HP/TQ....Does anyone oppose this set up; Are there dyno numbers on this cam(can someone run a dyno sim); And any other cam sugestions?
AFR/Brodix? either or? you have the compression just dont think that cam will get you to 500/500. swap those afr's for some 227's and a good single plane with a 950cfm and you should be right about there. Make sure you go mechanical roller!
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Old 08-05-2009, 09:52 PM
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Low end torque and racey idle don't mix.

Most boat cams are designed for broad, flat torque curves, modest RPM peaks, and avoiding exhaust water reversion. Usually the only boat cams that really work well on the street are the milder boat cams, and they work best on very mild street builds.

I have a boat cam (mellling 22024, 203/212 on a 112 LSA) in a pickup. It makes great torque and mileage, but wusses out at 4800.
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