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Originally Posted by 4mulafastech
(Post 2446568)
bobl, was this on a stock 6.2? What is your opinion on the Revolutions (fit and quality)? Any idea on the weight savings? Sorry for all the questions but I respect your opinion from reading other threads of which you contributed. Got a 292 with twin 6.2's and contemplating an exhaust swap. Sorry for the hi-jack!:party-smiley-004:
Chime-in as well pullmytrigger! |
Originally Posted by pullmytrigger
(Post 2447485)
I checked my notes......the complete Rev marine manifold and riser wieghs 25 lbs.......cast iron merc wieghed 85 lbs!.....took 240lbs off the back of my boat.......no prob with the fit.....i found the instructions a little confusing (arnt they all) you dont need the polished accesory brackets you cant see them anyways........brass plugs instead of polished......pretty decent polish job........great value IMO......drop in replacement for stock Merc
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Originally Posted by martins custom marin
(Post 2446940)
with hp you guys are talking about you will need to be carefull about water revertion, the rev marine only offer a standard cast riser that will revert water for sure. I would look into some eddie marines with hp risers, cheaper isnt always better when your fixing a motor water got into. check with diamond performance they quoted me a great price on some for a big block.
Page down for the cut-away... http://revolutionmarine.com/shopsite...bcexhaust.html |
Thought I would share this with you all...
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock. http://www.c-techperformance.com/dow...comparison.pdf |
With all the reversion issues with higher hp SBC's whould it just be easier to run dry exhaust, or route my water dumps just inside the transom? Can you run aluminum dry without overheating problems?
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manifolds
Originally Posted by THRILLSEEKER
(Post 2448142)
With all the reversion issues with higher hp SBC's whould it just be easier to run dry exhaust, or route my water dumps just inside the transom? Can you run aluminum dry without overheating problems?
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Originally Posted by 4mulafastech
(Post 2447597)
Great info! 240lbs is more than I expected. The weight savings alone helps justify the swap. Did you buy direct from Revolution? Thanks.
I got the same price they advertise on their site though........ |
Originally Posted by 4mulafastech
(Post 2447629)
Thought I would share this with you all...
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock. http://www.c-techperformance.com/dow...comparison.pdf |
IMCO also makes a nice set of small block headers as well.
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Originally Posted by Fenderjack
(Post 2448170)
Dry doesn't mean that the manifolds and risers are dry. Means that the water does not exit inside the exhaust chamber at any point, it exits out of a port on the outside of the transom on the exhaust pipe. Water never mixes with the exhaust gases.The manifolds have water running thru the water jackets. JOHN
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