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Old 05-11-2017, 08:52 PM   #1
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Default Factory Prop Size

Does anyone kmow what the factory props that were supplied on a 2000 2800 SCR with twin 4.3 liters carbed ? Can't seem to find ANY markings on either of my props ....they seem big , as in at least 18 inches ....size and pitch please ? Or best guess at least ?
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Old 05-11-2017, 09:45 PM   #2
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Better than a guess use quicksilvers propcalulator.

Prop Selector | Quicksilver Propellers | Mercury Marine
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Old 05-18-2017, 01:08 PM   #3
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The factory prop size for this boat is 18.25 x 19

I just bought this same boat and having WOT rpm issues and Mercruiser is telling me, no matter what different ways I edit the program, that I need 17.25 x 25.

I am going to start a thread asking others what props they have as cannot make a mistake when purchasing these expensive props.

I rebuild Volvo Duo Prop drives and was blown away by the price on the Bravo 2 props compare to the aluminum DP's. Actually more money. WOW
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Old 05-18-2017, 02:52 PM   #4
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Quote:
Originally Posted by Bluebear View Post
The factory prop size for this boat is 18.25 x 19

I just bought this same boat and having WOT rpm issues and Mercruiser is telling me, no matter what different ways I edit the program, that I need 17.25 x 25.

I am going to start a thread asking others what props they have as cannot make a mistake when purchasing these expensive props.

I rebuild Volvo Duo Prop drives and was blown away by the price on the Bravo 2 props compare to the aluminum DP's. Actually more money. WOW

The OP has 4.3's so most likely Alphas drives and not Bravo 2.

17.25 x 25? 25" diameter? Bravo 2 is designed for a max of 20" to my knowledge.

Duh strike my comment on diameter that's the pitch which is still way too much IMO.
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Old 05-19-2017, 01:10 PM   #5
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We need to be careful about comparing apples to oranges. Alpha I is not a Bravo II or Bravo III. Gear ratio of the drive plays a big factor in these calculations as well.
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