572 camming/build questions
#12
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Joined: Mar 2002
Posts: 2,103
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From: michigan
Built a set of 572's last year that made 754 HP 720 TQ with Bob Madara cam, lift was around .750 (thats all the info you get without calling Bob).Compression is 10 to 1 with AFR heads and Pro Sytems 1150's. They idle like a 500 EFI making power to 6000+ RPM's.
#13
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Joined: Aug 2011
Posts: 526
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From: US of A
10:1? wow I'm afraid to go anything over 9.5 with this fuel around here. Usually it is around 91 octane. Some pumps advertise 93 but I wouldnt count on it. Is that RMbuilder? How do you contact him?
#14
#17
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Joined: Sep 2006
Posts: 476
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From: brewster ma
Friends 572 with 254,266,ls112 is getting 5600rpm in his 1989 38 top gun #3 drives.Can't remember the prop pitch but the boat origanally had cobra 750's.They changed cams and gained another 300rpm,81mph now.Not too bad for a tank.
#18
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Joined: Nov 2004
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From: On A Dirt Floor
I love the all black look. Just my style.
#19
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Joined: Mar 2009
Posts: 1,194
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From: Delaware
Whats the top rpm your getting?
Friends 572 with 254,266,ls112 is getting 5600rpm in his 1989 38 top gun #3 drives.Can't remember the prop pitch but the boat origanally had cobra 750's.They changed cams and gained another 300rpm,81mph now.Not too bad for a tank.
Friends 572 with 254,266,ls112 is getting 5600rpm in his 1989 38 top gun #3 drives.Can't remember the prop pitch but the boat origanally had cobra 750's.They changed cams and gained another 300rpm,81mph now.Not too bad for a tank.
Still ran 96.5mph today. It has a few more in it for sure.


