Cam and exhaust set up question (reversion)
#21
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The S Pipes can use more cam because of the major free fall of the exhaust. Never would have really thoought that but many west coast boats like Eliminator use that set up to get exhaust under swim platform and their owners have shown to be able to use more cam than others without sucking water.
That said, still doesn't mean you want to overcam an engine. LOL.
That said, still doesn't mean you want to overcam an engine. LOL.
Last edited by SB; 04-27-2014 at 09:01 PM.
#23
Charter Member # 55
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or
http://www.cranecams.com/product/car...detail&p=24282
Personally, I prob pick the smaller 731 for a 468ci. It will make more torque in the lower and midrange rpms.
#24
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I just got my shipment of parts in from Bob @ Marine Kinetics last Friday and can't wait to start assembling. He is an absolute stand-up guy to work with. I was also amazed at how competitive his prices were. I couldn't beat him plus his service and knowledge is second to none. He is not just cams, but total engine development expertise.
#25
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If you truly are 10:1 with those GM iron heads, I'd be careful here. I may want to error slightly to the larger side with cam choice, watch the tuneup, and keep the engine running on the cool side. 10:1 is a little too high for my liking with iron heads for a pump gas pleasure boat.
Last edited by MILD THUNDER; 04-28-2014 at 08:39 AM.
#28
Somehow, whenever I see anything you post whatever you're commenting reads like blah-blah-blah when I see that avatar! Can't seem to focus on anything else...That is Grade A material my friend!
How much HP are you hoping for and what RPM are you willing to spin the engine to at WOT?
If you truly are 10:1 with those GM iron heads, I'd be careful here. I may want to error slightly to the larger side with cam choice, watch the tuneup, and keep the engine running on the cool side. 10:1 is a little too high for my liking with iron heads for a pump gas pleasure boat.
If you truly are 10:1 with those GM iron heads, I'd be careful here. I may want to error slightly to the larger side with cam choice, watch the tuneup, and keep the engine running on the cool side. 10:1 is a little too high for my liking with iron heads for a pump gas pleasure boat.
#29
Just bustin' your ballz guys - I owe a few of those after all the grief I've taken on my epic 489 build.