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  #1  
Old 07-02-2008, 09:11 PM
jspunksk8r
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'89 Prostar Prop

I have a 1989 Prostar 190 with 1900lbs of ballast. I have the 351 w/out gt40 heads and still have alittle trouble getting going. I need a new prop anyways and was wondering what size/pitch i should use to get alittle more acceleration and maybe even alittle better fuel economy? Thank you for any help.
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  #2  
Old 07-02-2008, 09:38 PM
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mad-dog1 mad-dog1 is offline
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Boat: 1986 Mastercraft PS 190, PCM 351 Windsor
Location: California
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Thumbs up Call Erick

This guy knows all about props, hope it helps! toast:

Eric @ OJ PROPS 800-359-9730
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  #3  
Old 07-02-2008, 09:56 PM
GuitsBoy GuitsBoy is offline
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Boat: 1992 ProStar 205
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Thats a load of ballast! Ive only got 1600 in my 205 and its already pretty slammed. With the 1:1 tranny, i think they suggest the 13x11.5 prop for the 351, but it dosnt hurt to check with the man himself.
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Old 07-02-2008, 11:06 PM
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climbinggod climbinggod is offline
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Boat: 1993 prostar 190
Location: Southern Alberta
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I went with a Acme-913 13 / 10.5, .060cup. I asked the guys at Acme and told them that I had trouble maintaining wakeboard speed. I also said I wanted to run about 1200 lbs ballast for surfing. This is what they recommended and I am well pleased. Puts out a great wake and surf wake. Maintains speed well. Top speed with 3 people is 45 mph with a 4160 holley an 351 HO. Here is the email from the Acme guy:

These are the props Acme suggested:

If you do have the 1-1 gear I am suggesting the Acme
1609 13 L 11.5 three blade nibral 1" bore .060 cup. This propeller sells for
$439.00. The 1609 will give you the extra power for wakeboarding &
wakesurfing + good holding power + will still be able to give plenty of
speed for skiing. You will loose abound 2-3 mph on top end speed. The Acme
three blade has more blade area than the average four blade propeller. If
you were only doing wakeboarding & wakesurfing then I would suggest the Acme
913 13 L 10.5 three blade nibral 1" bore .060 cup. This propeller also sells
for $439.00. The 913 would have more hole shot but you would loose 4-5 mph
on top end speed & would turn around 300 more rpm at ski speed.
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1992 Prostar 190, Indmar 351 HO, 1:1 Velvet Drive
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  #5  
Old 07-02-2008, 11:30 PM
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jmac197 jmac197 is offline
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I told you these guys would have the answer!


Now there will be no excuse for not landing that backroll!
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  #6  
Old 07-03-2008, 07:25 AM
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Typically we go with our 13 X 11, we also have a 13 X 10 that I built just for the heavily loaded 1:1 wakeboard boats.
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Old 07-03-2008, 07:30 AM
GuitsBoy GuitsBoy is offline
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Boat: 1992 ProStar 205
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Quote:
Originally Posted by EJ OJPROP View Post
Typically we go with our 13 X 11, we also have a 13 X 10 that I built just for the heavily loaded 1:1 wakeboard boats.
Id you dont mind me asking, what do you suggest for the HO version (285)? Also, these are of course your three blade props, right?
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  #8  
Old 07-03-2008, 07:46 AM
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EJ OJPROP EJ OJPROP is offline
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They are 3-blades. What year is your 205? What are you currently running?
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  #9  
Old 07-03-2008, 08:25 AM
GuitsBoy GuitsBoy is offline
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Quote:
Originally Posted by EJ OJPROP View Post
They are 3-blades. What year is your 205? What are you currently running?
1992 205 351 285 13x13 4 blade. Thats a lot of numbers to decode!
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Old 07-03-2008, 09:06 AM
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I would start with the 13 X 11 LC 1" if the 13 X 13 4-Blade is doing a decent job now.
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