LSA and exhaust
#7
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Miken- DaveF is right...it is overlap you should be concerned with. Wider LSA's will reduce overlap, but increased duration increases overlap...so, it's like dave says, its the degrees of overlap total. Now, is 7 deg. the magic number with stock merc manifolds? I don't know, but I'll bet it's close, maybe even a little less.
The best way to run your exhaust on an extended transom boat[like a Chaparral] is to run it out the sides...this gives you plenty of room to simply modify a switchable exhaust tip to run inline or you can run a 4" Borla muffler or similar...just make sure the muffler case isn't much longer than 12". Good luck!
The best way to run your exhaust on an extended transom boat[like a Chaparral] is to run it out the sides...this gives you plenty of room to simply modify a switchable exhaust tip to run inline or you can run a 4" Borla muffler or similar...just make sure the muffler case isn't much longer than 12". Good luck!
#10
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Thanks, I'm in the process with corsa, but the question is, can I bolt on an elbow to the stock manifold to discharge the water further away,I was installing silent choice type, but it 90's right off the back, like 8-9'' from the end of stock riser? I know it would be easier to just buy a bigger, faster boat, but then I would have to make the garage bigger!