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-   Formula (https://www.offshoreonly.com/forums/formula-36/)
-   -   with scorpions (https://www.offshoreonly.com/forums/formula/191762-scorpions.html)

Trueser 07-25-2008 06:13 AM
I have a 28ZX with scorpions and they run great. 79 on GPS so far. What props were they running on the 292's? And what way did they spin.

Thanks

Phazar454Mag 07-25-2008 04:30 PM
Originally Posted by Trueser (Post 2634433)
I have a 28ZX with scorpions and they run great. 79 on GPS so far. What props were they running on the 292's? And what way did they spin.

Thanks
The 76 MPH is with 29" labbed Bravo One props.
Higher speeds with 30" labbed Bravo One props.
I think even 32" Bravo have been used but I am not sure ?
Props are spinning out.
Gear ratio 1.65:1

Personally I run std. 28" Bravo One props so I have great acceleration but lower top speed (72-75 MPH). I am considering trying higher pitch props, but I am afraid to loose mid range efficiency. Too high slippage in the cruising mid range and the fuel economy is gone, and the cost of gas here is app. 9.5 USD/gallon so I prefer low slippage :)

What props are you using ?

Trueser 11-01-2008 09:14 PM
Originally Posted by Phazar454Mag (Post 2635044)
The 76 MPH is with 29" labbed Bravo One props.
Higher speeds with 30" labbed Bravo One props.
I think even 32" Bravo have been used but I am not sure ?
Props are spinning out.
Gear ratio 1.65:1

Personally I run std. 28" Bravo One props so I have great acceleration but lower top speed (72-75 MPH). I am considering trying higher pitch props, but I am afraid to loose mid range efficiency. Too high slippage in the cruising mid range and the fuel economy is gone, and the cost of gas here is app. 9.5 USD/gallon so I prefer low slippage :)

What props are you using ?
Sorry I missed this.

I run 25 mirage plus. 80.4 gps last run on lake michigan.

Bronco 11-04-2008 04:26 PM
Trueser, what is the gear ratio of your drives?

Trueser 11-04-2008 05:36 PM
1.5

rssteiny 03-15-2009 05:19 PM
Ihave a freind looking a 292 with scorpions, only 61 hours, what kind of rpm are they running, what is the hours till refresh time.

thanks

Trueser 03-15-2009 06:10 PM
Originally Posted by rssteiny (Post 2821745)
Ihave a freind looking a 292 with scorpions, only 61 hours, what kind of rpm are they running, what is the hours till refresh time.

thanks

They run @ 5200 NOt sure on the refresh time.

pokerrunboats 03-18-2009 02:20 AM
Originally Posted by Phazar454Mag (Post 2634394)
Yes they do: http://sites.mercurymarine.com/pls/p...PION879310.PDF

but I think it is a ski engine.
its available Bravo style :ernaehrung004:

http://www.mercruiserparts.com/400_scorpion.htm


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