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jspunksk8r
07-02-2008, 10:11 PM
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.

mad-dog1
07-02-2008, 10:38 PM
This guy knows all about props, hope it helps! toast:

Eric @ OJ PROPS 800-359-9730

GuitsBoy
07-02-2008, 10:56 PM
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.

climbinggod
07-03-2008, 12:06 AM
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.

jmac197
07-03-2008, 12:30 AM
I told you these guys would have the answer!


Now there will be no excuse for not landing that backroll!

EJ OJPROP
07-03-2008, 08:25 AM
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.

GuitsBoy
07-03-2008, 08:30 AM
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?

EJ OJPROP
07-03-2008, 08:46 AM
They are 3-blades. What year is your 205? What are you currently running?

GuitsBoy
07-03-2008, 09:25 AM
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! :)

EJ OJPROP
07-03-2008, 10:06 AM
I would start with the 13 X 11 LC 1" if the 13 X 13 4-Blade is doing a decent job now.

drbesvold1
07-03-2008, 10:08 AM
talk with jim or chuck at baw's they gave me a great deal with my 2 props and they might have more props as well

GuitsBoy
07-03-2008, 10:19 AM
I would start with the 13 X 11 LC 1" if the 13 X 13 4-Blade is doing a decent job now.
Yeah, its not doing a poor job, but it definitely could use some help. With 1600 lbs of ballast and 4 or 5 people, she struggles just a touch, and the top end only hits 3600 or 3700 rpm.

EJ OJPROP
07-03-2008, 10:31 AM
Try the 13 X 11, if it does not improve performance I'll take it back.

jspunksk8r
07-03-2008, 05:01 PM
What size 4-blade would you recommend?

EJ OJPROP
07-04-2008, 08:57 AM
12.5 X 12 is the lowest pitch 4-blade we currently make.