Dyno proven 675-700 HP 540CI recipes?
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They were specd by chris straub. The guy who got laughed at and banned from oso by some of the in crowd. I was a bit skeptical at first, but he hit the power goal at a much lower rpm , without having to rev the engine with small props and bad cruise speed. The heads were new afr 335s, that had guides honed to spec, valve jobs touched up, flowed, etc. Im sure with big dyno headers they would have cracked 800 at 6000rpm.
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Ran Labbed 23 Mirage's this weekend, engines went 5800@73 mph, zing right up, so basically the power band is too high for my 25's, I think I will lab mine up to the best I can and call it a day, boat should run 73-75 and reliable.... at least I know they are not held back by ignition and such...
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[QUOTE=Full Force;4337502]I am, 241/246, too high according to a few guys, proven engine builders....
advancing the cams will give you more low end..will also take away from max rpms..
advancing the cams will give you more low end..will also take away from max rpms..
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Back when you were planning out these builds, was a 572+ci ever brought up? In the grand scheme since you buying new, it wouldnt have cost much more. The 540 platform was popular because most had std deck 502 mercs and stroked them , so it was the obvious choice.
A buddy of mine just did some 572s , 10:1, afr heads with some cleanup work, victor jr, 1200 dominator, custom cam , engines made gobs of torque, and 770ish hp at 6000 thru small cmi headers
A buddy of mine just did some 572s , 10:1, afr heads with some cleanup work, victor jr, 1200 dominator, custom cam , engines made gobs of torque, and 770ish hp at 6000 thru small cmi headers