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Hot rodding an OMC 70hp triple, any leads?
Hi folks,
I have an Evinrude 70hp triple on my everyday openbow runabout. I would like to try to make 100hp, but without revving it to death, just more ponies in the normal 4700 to 5200 range. The engine seems very durable and has the large gearcase used on motors up to 140hp, so it would seem like a good candidate for a bit of a build-up. I know I could just put a 100hp 4 cylinder on my hull, but that kind of takes the fun out of it. I have 2 of these 70hp triples out in the garage missing various external parts, and either of these could be built up, while still running my everyday engine. It would mean more to me to hear somebody say "Damn, that little 70 of yours really kicks ass", as opposed to "So, you got a V4 back there". It seems Montyracing doesn't mess with triples, only V4/V6 stuff. Anyone have any thoughts on my project? Any leads? Oh, BTW, I trailer the boat with my 1948 International KB1 pickup with a 142 cubic inch blower sitting on a Chevy 350, and no, I don't mash it with the boat back there, as I think snapping the hitch ball completely off is a real possibility! |
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#3
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Well supercharge the outboard too ... 8 psi should give the required
additional 35 hp :-) I would like to try to make 100hp, but without revving it to death, just more ponies in the normal 4700 to 5200 range. |
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