MHRCBOATS

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Ok, I got it

Mods that i have done in this engine.

Modified sleeve.
Modified Rotor valve.
Shorter header.
Modified crankcase.
New type of crankcase seal on outgoing shaft.
Modified Cmb pipe with Mathe muffler/brass tube.

These mods raised the rpm to 18400 with a slightly modified PS 7016/4 ss.
Boat Hull: Zigma 62`(Leif Rasmussen design)

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Mods that i have done in this engine.

Modified sylinder.
Modified crankcase and crank.
Modified piston.
Zero dragseals.
Modified 813 walbro carb.
Steel pipe from RC-Racing with new muffler.

These mods raised the rpm to 18550 with a slightly modified PS 7016/2 ss.With center of prop shaft 12 mm above sponsons
On this engine the PS 7016/2-7018/2 works best.(modified)
Boat Hull: Aeromarine Sprintcat 42`

Piczo