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Author Topic:   re power

jonha posted 05-02-2003 10:55 AM ET (US)
replacing my 2 stroke mercury 50hp on my 88 15ft sport with a new 50hp mercury 4 stroke efi. will the performance change. thank you, jonha
captbone posted 05-02-2003 11:43 AM ET (US)
I think you will gain a 1 mph or so but I would not expect anything more than a 1mph in either direction. You will have great fuel economy and no problems!
prj posted 05-02-2003 02:23 PM ET (US)
I believe forum member "skred" has a recently installed 4s 50 hp Mercury on a 15.
Look him up in the Trips and Rend Forum under Door Co. or the "Easy Off" thread in Repairs/Maint. Forum. He will provide real numbers I expect.
PSW posted 05-02-2003 05:36 PM ET (US)
Take a look at the 60 efi 4 stroke also. Same weight and ten more ponies that I am sure will come in handy. I would guess that it would be well worth the extra few hundred bucks.
PSW
PMUCCIOLO posted 05-02-2003 11:28 PM ET (US)
jonha,
Having recently powered my 15 with an F60 Yamaha, I can tell you that you will be delighted! I'd suggest your considering the 60HP model, as it weighs the same as the 50HP model does. A few extra ponies never hurt!
The engine's break-in isn't finished yet, so I don't have performance figures available. Also, my brother and I are going to try out the boat tomorrow with the girls aboard, so we'll have an idea of how additional passengers affect the boat's feel.
PM

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Author	Topic: re power
jonha	posted 05-02-2003 10:55 AM ET (US) replacing my 2 stroke mercury 50hp on my 88 15ft sport with a new 50hp mercury 4 stroke efi. will the performance change. thank you, jonha
captbone	posted 05-02-2003 11:43 AM ET (US) I think you will gain a 1 mph or so but I would not expect anything more than a 1mph in either direction. You will have great fuel economy and no problems!
prj	posted 05-02-2003 02:23 PM ET (US) I believe forum member "skred" has a recently installed 4s 50 hp Mercury on a 15. Look him up in the Trips and Rend Forum under Door Co. or the "Easy Off" thread in Repairs/Maint. Forum. He will provide real numbers I expect.
PSW	posted 05-02-2003 05:36 PM ET (US) Take a look at the 60 efi 4 stroke also. Same weight and ten more ponies that I am sure will come in handy. I would guess that it would be well worth the extra few hundred bucks. PSW
PMUCCIOLO	posted 05-02-2003 11:28 PM ET (US) jonha, Having recently powered my 15 with an F60 Yamaha, I can tell you that you will be delighted! I'd suggest your considering the 60HP model, as it weighs the same as the 50HP model does. A few extra ponies never hurt! The engine's break-in isn't finished yet, so I don't have performance figures available. Also, my brother and I are going to try out the boat tomorrow with the girls aboard, so we'll have an idea of how additional passengers affect the boat's feel. PM