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Off the shelf cam options for marine engines

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Old 02-16-2016 | 05:36 AM
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Originally Posted by Full Force
correct, a buddy of mine made 621 hp similar rpm and 641 TQ with 502's so to me mine are nothing amazing at all, not horrible but not breaking records....
Didn't you have some off brand intakes? If so are there any dyno proven setups using the same intakes?
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Old 02-16-2016 | 06:06 AM
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Originally Posted by Full Force
. Cig rockets Mistress had 315 afr with 741 cams his engines made 687 HP I think it was and boat went 75 mph easily he said at 5350 rpm so it just proves shelf cams are just fine if not better in some cases...
741 cam is hard to beat.
have you and your buddy scaled your boats?your's may be just that much heavier than his.
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Old 02-16-2016 | 06:16 AM
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Originally Posted by Full Force
correct, a buddy of mine made 621 hp similar rpm and 641 TQ with 502's so to me mine are nothing amazing at all, not horrible but not breaking records....
The 502's that you referenced also had marine kinetics cams.
The engines have Edelbrock heads and dale cubic 750cfm carbs.

To be fair, those numbers were with only a water pump and dyno headers and on a different dyno.
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Old 02-16-2016 | 06:21 AM
  #234  
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Remember, Full Force has lower compression. What was the exact # FF ?
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Old 02-16-2016 | 07:06 AM
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Originally Posted by SB
Remember, Full Force has lower compression. What was the exact # FF ?
I was wondering about that. It would make sense if he was down under 9 to 1
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Old 02-16-2016 | 07:18 AM
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9.5:1 and compression tests 165 average
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Old 02-16-2016 | 07:20 AM
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Originally Posted by Full Force
9.5:1 and compression tests 165 average
Was it ever cc'd?
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Old 02-16-2016 | 07:21 AM
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One shelf grind is not going to be ideal for every combination. The closer the cam is to being "ideal" for a given combination, the more power it's going to make within that cam's design limitations. That's why some combinations with the same displacement will make more power than others, given the same cam. There are lots of other factors in an engine build that contribute to making power, so that needs to be taken into consideration as well. You can't just assume it's the cam when comparing different builds by different builders. Don't get too caught up in that.
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Old 02-16-2016 | 07:27 AM
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Originally Posted by 272lsformula
Struab or anyone, which off the self cam would you recommend for a 540ci 8.2-1 morel lifters dart pro 1 345 and 8-71 blower 5-6lbs of boost?
Assuming 6000 propped max rpm

650/620
243/253 .050
112 LSA
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Old 02-16-2016 | 07:32 AM
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Originally Posted by Panther
Does Lunati make their cams?

Reason I ask is my engines were originally built with Lunati pistons. The bulider at the time swore by them. Fast forward from 2004 to 2010, I needed a piston. I had to custom order 4 from Lunati. It took 7 weeks to get them and when I opened the box, much to my surprise, they were Weisco pistons.
Lunati never made their pistons, they were always subcontracted out and I believe Weisco had the contract the entire time. Comp Performance Group bought Lunati around '03, '04. Comp Performance Group bought Crane 2 years ago this month.
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