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exhaust questions. Dry VS. what? WET?

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Old 02-26-2008, 07:18 PM
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I think the CMI Elbow Top headers like I have on my boat are less than $5k. Maybe $3K a pair? Have you started building the engines yet?
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Old 02-26-2008, 07:18 PM
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lightning is the brand i was looking at... they seem like a solid piece..
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Old 02-26-2008, 09:31 PM
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i like gil's dry system. i got over 15 years out of my last set and they saw alot of salt water. i also have been told they produce more hp & tork over cmi & that was told to me by a reputable engine builder by dyno tests they have done on alot of system's. beside's that dry pipes sound bad-ass. even with my gil full time muffler's you can't imagine how many guy's back off when i "hammer-down" as my kid's say. sounds like i have blower motor's. if its to loud your to old

Last edited by scarabfun; 02-26-2008 at 09:47 PM. Reason: add content
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Old 02-26-2008, 09:50 PM
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if you have sterling regular header can you go dry or do you need the a whole dry system per say
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Old 02-26-2008, 09:58 PM
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i'm not an expert but if your tailpipes are seperate from the manafolds/risers and use a jumper hose i would say yes . all you would have to do is buy dry tailpipes. dry pipes are also great because you don't get the water-reversion problems with big cam's.
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Old 02-26-2008, 10:19 PM
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Originally Posted by open72
if you want the best performing exhaust , go with the KE'S as they are a true 32' in length.

http://www.offshoreonly.com/forums/s...ght=ke+exhaust

second runner up is STAINLESS MARINE manifolds..

my coin's worth.
go with the KE'S as they are a true 32' in length.
Hey OPEN a true 32 feet in lenght ???
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Old 02-26-2008, 10:22 PM
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Originally Posted by scarabfun
i'm not an expert but if your tailpipes are seperate from the manafolds/risers and use a jumper hose i would say yes . all you would have to do is buy dry tailpipes. dry pipes are also great because you don't get the water-reversion problems with big cam's.
the water reversion issue definately draws me to the dry pipes....
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Old 02-26-2008, 10:28 PM
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i have big cam's in my 468's so to me it's not worth taking a chance. i bet that's why the merc 502's had trouble. they use gil manafold's but the riser wasn't a full dry pipe. gil system's are about $2600 complete at cp performance

Last edited by scarabfun; 02-26-2008 at 10:31 PM.
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Old 02-26-2008, 10:31 PM
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are you 468's just bored 454's (330 hp), if so message me!
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Old 02-26-2008, 10:45 PM
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they were 454 400 cyclone's originaly. now bored balanced, blue printed full roller motor's with merlin rec. port heads. turn 5500 rpm all day and lots of tork . tork is where it's realy at in a marine engine. my engine builder doesn't realy like 502's , i think they have hot spots and don't like as much rpm, i don't realy know for sure
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