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Old 10-08-2018, 04:42 PM
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Dacon62 Dacon62 is offline
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Boat: 2017 Prostar 5.7
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Prostar 5.7 Best Prop

Hi all...first time posting on team talk as I have moved from camp Malibu to camp Mastercraft.

My 2017 Prostar should arrive in a few weeks and I am wondering if any of you have tried different props on the 5.7 Ilmor. From what I understand it comes from the factory with an OJ 709. We ski the course at 32-34 mph. What are your rpms for 34 mph with this or any other prop you might have tried? Also what top end/rpm are you getting out of the factory or other prop that you've tried?

Ideally would like to be in the 3250-3300 [email protected] 32 mph, 3450-3500 [email protected] mph

Is there a prop out there that can give me decent hole shot and ski at the rpms listed above and get me close to 44+ mph for the occasional barefoot set?

Spend time on Ball of Spray as well and have had some good feedback. Was hoping to get a little more from this group. Thanks in advance!
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Old 10-08-2018, 04:57 PM
Ben Ben is offline
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Congrats on the boat. Colors?
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Old 10-08-2018, 05:17 PM
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Dacon62 Dacon62 is offline
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Corsair Blue and White.
Simple, clean and timeless.

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Last edited by Dacon62; 10-10-2018 at 12:36 AM.
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Old 10-08-2018, 09:06 PM
Ben Ben is offline
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Nice. Will look good (and ski Good) for a long time.
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Old 10-08-2018, 10:48 PM
trunderw trunderw is offline
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I don't have an answer on the prop but am curious: why do you have a target RPM range for the two speeds? It is a prostar so surely they put a bit of thought into the prop for slalom speeds 30-36...
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Old 10-09-2018, 10:02 AM
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EJ OJPROP EJ OJPROP is offline
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Working on some new Pro Star props at this time, feel free to call.
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  #7  
Old 10-09-2018, 11:46 PM
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Dacon62 Dacon62 is offline
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Join Date: Oct 2018
Boat: 2017 Prostar 5.7
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All things are a work in progress. In 2014 the PS had apperant transmission and air intake/heat issues that resulting in poor acceleration. The initial prop that was cut for it may have also been a work in progress and subsequent props may offer better power out of the hole, reduced rpm’s at ski speed and higher top end speed. I don’t know....therefore the rpm’s at various speeds listed seem like reasonable perameters as compared to my last boat(2001 Response with an Acme 515-13x12). Some boats that have come out lately run very high rpm’s at Slalom speeds. I would prefer to save the engine and fuel by running “reasonable” rpm’s for the speed as I am not a super short line skier.
Will give Eric at OJ a call to discuss further.
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Old 10-09-2018, 11:58 PM
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paintpollz paintpollz is offline
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such a nice boat. very jealous
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  #9  
Old 10-14-2018, 02:21 PM
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Dacon62 Dacon62 is offline
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Join Date: Oct 2018
Boat: 2017 Prostar 5.7
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Still no answers to the original question...Anyone have experience with other than factory props?
What is your experience? Better holeshot? Reduced RPM’s? Higher top end speed?
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  #10  
Old 10-14-2018, 10:20 PM
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mikeg205 mikeg205 is offline
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Boat: 1995 Pro Star 205 5.7 Liter
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After you get boat, get some prop as to test from acme... less pitch for higher rpm.. more pitch for lower.

MC spends tons of time matching boat, powerplant/trans to a prop.

2018 PS with 5.7 pull like a freight train and geta my back end out of the water quick... when I get to ski behind one.

Sent from my SM-G955U using Tapatalk
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