I have repowered my 21' 1981 Mako with 1998 225 hp two stroke EFI Yamaha...I boat on Lake Erie....I am trying to get some feedback re: what size & pitch I should use on this to get best performance...I am looking for the best size to use to get a good hole shot and not necessarily looking for top end speed, just best economy with the hole shot...I thank anyone that can give some good info on this so I don't have to try many props to get the results I need....Thanks to all.....Big Bill
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Email Ken at Propgods. Tell him the boat, engine, prop and performance of the old engine.
When I changed engines on my 201 he nailed it with a Mercury Enertia. It is a much better prop than the Yamaha I had been using.
2007 Everglades 243 250 Suzuki[br]1988 201 Yamaha 200 - Sold[br]1990 261 T/200 SWS - Sold[br]1978 25 225 Johnson - Sold[br]1975 20 85 Merc - Sold[br]Jacksonville, FL[br]
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When I first got my 21 it had a 98 225 Optimax. It was spinning a 15x19 prop but I was not making top rot so I dropped down to a 15x17 and that brought up my rpms and reduced my fuel burn a little and I actually picked up some speed since the engine could wind up more. The 21 is a deep v hull not a bass boat. It takes a certain amount of forward momentum and speed to get the hull up and out of the water. If you are trying to get a quick hole shot, your just beating on your engine and wasting fuel. I repowered with a 200 Yamaha hpdi and I think that was spinning a 14.75 x 18 prop. I have this all in spread sheets, but I have to find the flash drive with that on it. As for the Propgod...he has a website..look him up. He has helped me too.
Chris Miller[br]Mystic Islands, NJ[br]1974 17 Classic[br]1988 211 Classic (sold)[br]1990 Grady White 230 Gulfstream (sold)[br][img][br]
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quote:
Originally posted by cgmiller
When I first got my 21 it had a 98 225 Optimax. It was spinning a 15x19 prop but I was not making top rot so I dropped down to a 15x17 and that brought up my rpms and reduced my fuel burn a little and I actually picked up some speed since the engine could wind up more. The 21 is a deep v hull not a bass boat. It takes a certain amount of forward momentum and speed to get the hull up and out of the water. If you are trying to get a quick hole shot, your just beating on your engine and wasting fuel. I repowered with a 200 Yamaha hpdi and I think that was spinning a 14.75 x 18 prop. I have this all in spread sheets, but I have to find the flash drive with that on it. As for the Propgod...he has a website..look him up. He has helped me too.
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