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Forum: Speed - RC Gas Boats

03-01-2004, 08:18 AM

Replies: 15

engine mods

Views: 2,806

Posted By OLD_SLOW and in the WAY

RE: engine mods

Thunder pro has been around for ever "Rich" is the owner and they are in New Jersey. if ya cant find a part he usually has it. Superior like i explained is coming out with the same stuff in a stock...

Forum: Speed - RC Gas Boats

02-28-2004, 10:03 PM

Replies: 15

engine mods

Views: 2,806

Posted By OLD_SLOW and in the WAY

RE: engine mods

i should really update that picture. two holes get drilled one on each side in the exhaust side transfer port area only. the superior crank will fit the zenoah rc230 only. but they are comin out with...

Forum: Speed - RC Gas Boats

02-27-2004, 04:20 PM

Replies: 15

engine mods

Views: 2,806

Posted By OLD_SLOW and in the WAY

RE: engine mods

i window the exhaust side transfer of the piston only. because of the way the transfer tops are formed to direct flow for scavenging. both leading and trailing edge is knife edged and where the rod...

Forum: Speed - RC Gas Boats

02-27-2004, 01:52 PM

Replies: 15

engine mods

Views: 2,806

Posted By OLD_SLOW and in the WAY

RE: engine mods

windowing of the pistons has not stopped, at least with my set of modifications.

Forum: Speed - RC Gas Boats

02-22-2004, 08:49 AM

Replies: 15

engine mods

Views: 2,806

Posted By OLD_SLOW and in the WAY

RE: engine mods

the term "turbo'ed" refers to the streamlining of the crank throws so it doesnt plow through the fuel air mix. its typically good for a 1000 rpm increase.next off is the port enlargement ya gotta get...

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