Need help with the propeller for 1991 Fountain Fever 27

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02-17-2023 | 04:42 AM

OliverFever27

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Need help with the propeller for 1991 Fountain Fever 27

Dear All
I need a new propeller for my 1991 Fountain Fever 27, equipped with a standart 502 magnum carburated, 430 hp, and bravo 1 drive. Have now a 3 blade Mirage plus 23P, running 58mls at 4.600rpm. Want to change to a 4 blade with lap finish without loosing top speed.
Can someone give me a good idea for this? Thank you!

Last edited by OliverFever27; 02-17-2023 at 10:43 AM.

02-17-2023 | 09:52 AM

Brad Christy

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From: SW Ohio

Quote:

Originally Posted by OliverFever27

Dear All
I need a new propeller for my 1991 Fountain Fever 27, equipped with a standart 502 magnum carburated and bravo 1. Have now a 3 blade Mirage plus 23P, running 58mls at 4.600rpm. Want to change to a 4 blade with lap finish without loosing top speed.
Can someone give me a good idea for this? Thank you!

Oliver,

Somebody more knowledgable than me is going to ask it, so...

What's your outdrive gear ratio?

Just to put it out there.... I'm running ~76MPH with a 28P Bravo 4 blade on my PowerQuest 280 with a ProCharged 496HO at ~5000RPM. Most other PQ280's I'm aware of, without the ProCharger, are running a 26P Bravo and are just shy of 70. You're getting decent speed at a reletively low RPM, which would indicate the engine is loaded up well, but the prop is pretty small. This leads me to believe your gear ratio is NOT a 1.5. Just speculating, though.

Thanks. Brad.
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