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View Full Version : 1990 Prostar 190 351 Powerslot Prop Question


bohmer410
08-23-2010, 03:43 PM
I have a 1990 Prostar 190, 350, powerslot. I still have the orginal prop on it in good shape, but has been repaired three times. I use it for mostly wakeboarding and rarely go faster than 35 mph. I have been looking at upgrading to a 4 blade prop, but I'm not sure which one and what change it will make. Can I get some advice on which one I should get and what it will do?

DooSPX
08-23-2010, 03:54 PM
contact OJ. pm eric on here

06197ttlq9-footer
08-23-2010, 04:19 PM
The only draw back I found to the four blade O.J is that it makes the boat a little unstable at WOT.


contact OJ. pm eric on here

EJ OJPROP
08-23-2010, 04:20 PM
Would suggest a 14 X 18 LC 1 1/8" FORCE 4-blade.

eurosysytem0
08-23-2010, 04:27 PM
I have a 1990 Prostar 190, 350, powerslot. I still have the orginal prop on it in good shape, but has been repaired three times. I use it for mostly wakeboarding and rarely go faster than 35 mph. I have been looking at upgrading to a 4 blade prop, but I'm not sure which one and what change it will make. Can I get some advice on which one I should get and what it will do?
I am now in the process of sellingin the Uk an 1988 prostar powerslot with the 351 engine. 6 years ago I ftted an OJ CNC 4 blade prop- (I will check out dims at the weekend).Its still perfect

It transformed my boat. It even sounded different from the bank and is incredibly smooth (it was like driving and electric boat as far as vibration is concerned) It gave even more grunt out of the hole and some improvement at top end..

DooSPX
08-23-2010, 04:29 PM
well there you have it from the man him self.

Jim@BAWS
08-23-2010, 04:43 PM
14 x 18 Nibral. OJ is fine. Changes the sound. Gets rid of alot of the powerslot HUMM Stronger out of the hull and you may gain speed. at least that has been my experince

The FORD 351 240 HP is not string enough to turn a 14 x 20

Jim@BAWS

bohmer410
08-24-2010, 11:37 AM
Thank You for all your help

DooSPX
08-24-2010, 12:20 PM
well, there you go! cannot get much better than the two best in the business.
BAWS and OJ!

93Prostar190
08-24-2010, 10:35 PM
I did it on my 93 Prostar190 with GT40 Engine and Powerslot ... the change to the OJ 14x18 4 blade was awesome ... I liked it alot ... the wake seemed to have a better shape for our slow speed events like kneeboards and wakeboards ...... performance was awesome and the boat did seem quieter ...... a must upgrade on your boat ... good luck ..... 4 blade legend 14x18 all the way.

95prostar
08-24-2010, 11:06 PM
I did it on my 93 Prostar190 with GT40 Engine and Powerslot ... the change to the OJ 14x18 4 blade was awesome ... I liked it alot ... the wake seemed to have a better shape for our slow speed events like kneeboards and wakeboards ...... performance was awesome and the boat did seem quieter ...... a must upgrade on your boat ... good luck ..... 4 blade legend 14x18 all the way.

plus one vote on the 14x18 with powerslot. only difference is i have a little more hp with the lt1 chevy. you will have to relearn your throttle pulling up skiers. awesome prop. i have an oj 4 blade.