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#1
05-25-2011, 04:34 AM
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Prop for more top speed? PS 190 1995.
Hi,
I have a ProStar 190 1995, 275 hp engine, with 1:1 transmission, 4-blade prop 13 x 13. Top speed being now 38 mph (or knots), i.e. 70 km/h. Any suggestion for a prop to change to gain more top speed e.g. for barefooting, with less revs and less fuel consumption? I researched this a few year ago, and it seemed that only possibility was to gain max 3 mph. If more top speed, then acceleration would suffer. Any experience or comments, prop recommendations? 
__________________
PS190 1995 5.7 l EFI TBI 1:1 13x13 4-blade prop. Barefoot boom, wakeboard boom & fatsack. UK made trailer 
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#2
05-25-2011, 06:22 AM
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38 doesn't seem right at all. I would think with correct factory prop you should get at least 42 mph out of it.
Eric from OJ is on this site. If he doesn't find this thead you can send him a private message EJ OJPROP.
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Tim
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#4
05-25-2011, 01:20 PM
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38 is slow. I bet your props been repaired and not quite right. Mine runs 44 mph with the 13x11.5 3 blade on XMP
__________________
 1997 Prostar 190, TBI 350, 1:1, OJ XMP 13 x 11.5, Stargazer, Hot Shower, Heated Drivers Seat, Reuben/Mountain Rock/Nite Navy
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#5
05-25-2011, 01:26 PM
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MasterCrate rates that boat at a top speed of 43 or so.
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#6
05-25-2011, 01:29 PM
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I agree... 38 does seem low... what is the RPM?
__________________
1991 PROSTAR 190 Flagship Blue POWERSLOT OJ XMP CNC 13.7x17.5 .110 4B A.K.A. One of a kind mistake 2011 Best In Show- 1987-2000 class Trying to keep slalom alive Need a new prop to fit your needs? Call Eric from OJ PROPS 800-359-9730 Quote:
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#7
05-25-2011, 01:40 PM
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Also, after you find out your rpm's... call Eric from OJ and talk to him about your needs... He is the BEST to work with and will get you a prop that you will be happy with.
__________________
1991 PROSTAR 190 Flagship Blue POWERSLOT OJ XMP CNC 13.7x17.5 .110 4B A.K.A. One of a kind mistake 2011 Best In Show- 1987-2000 class Trying to keep slalom alive Need a new prop to fit your needs? Call Eric from OJ PROPS 800-359-9730 Quote:
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#9
05-25-2011, 04:00 PM
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38 knots or 70 km/h is 43.5 mph. He is getting the same out of that prop as everybody else.
That is if his speedo is in knots or km/h. Last edited by Table Rocker; 05-25-2011 at 04:22 PM. Reason: added last line
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#10
05-25-2011, 06:32 PM
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If you are getting 43.5 mph that is going to be about it with that boat.
__________________
1997 Prostar 190, TBI 350, 1:1, OJ XMP 13 x 11.5, Stargazer, Hot Shower, Heated Drivers Seat, Reuben/Mountain Rock/Nite Navy
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