so as some of you have already seen, I'm retrofitting this Kohler CH620 onto my Dynamark/MF14 chassis. Part of my job is to make an exhaust manifold. Yes, I'm aware that Kohler sells them, but they are $180 CAD and not very "pimp" so to speak.
I'm fortunate to have a friend with a CNC Plasma cutter, so I designed the flanges in eMachineShop and he cut them out to spec out of 1/4" plate. So i have these flanges, some Weld Els and some 1" black pipe that will be the materials for my exhaust manifold/headers. For those unfamiliar with the CH620, it's an 18hp horizontal shaft v-twin.
Does anyone have any good design ideas for such a thing? I'm thinking individual headers and i'll run them diagonally down so the ends are somewhat under the running boards. Does that seem like a viable option? Will I lose out on HP running split headers like that? I plan to have the ends threaded so I can have twin Kohler can mufflers on the ends to silence the noise.
Here's a pic of the engine on the chassis.
Edited by frenchy, February 04, 2013 - 01:13 PM.