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rem_pss308
03-01-2005, 08:39 AM
Anyone on here using the Acme # 543 prop. It is 13 X 11.5.
Jim at acme recommended this one for me on my 93 205 when using a lot of ballast (2000 lbs).
With out a lot of ballast he recommended acme #541 13 X 12
I am just curious of the difference in rpms, and top end speed. To my 13 X 13

MarkP
03-01-2005, 08:53 AM
Doug. Will you take this:wavey:

atlfootr
03-01-2005, 09:05 AM
Anyone on here using the Acme # 543 prop?

Recommended on my 93 205 when using a lot of ballast (2000 lbs) I'm using a SS 4 blade prop on my '93 MC BF200 :twocents:
Fast as hell hole shot, top ends out at 65-70 mph :eek3:

86PowerSlot190MC
03-01-2005, 09:37 AM
Here's a nice little prop calculator I found on the web:

http://continuouswave.com/cgi-bin/propcalc.pl

This is just a guide, but you can get a picture of what you may gain or lose.

Brn85ss
03-01-2005, 11:20 AM
I have not read any comments on an acme prop for the powerslot tranny.I'm calling acme this morning to get size info,but would like to here feed back from a powerslot owner.One of the other sites thought that if you have a powerslot you should go to the four blade regardless of brand.Please someone anyone?

86PowerSlot190MC
03-01-2005, 11:28 AM
My MasterCraft is a 1986 19' 351 PCM with Powerslot.
I've just got an e-mail from Bill Weeks at ACME and he says that 4-blade is the only way to go for the Powerslot.

He recommended a:
Acme 381 13.5 L 17.5 four blade nibral 1 1/8" bore .105 cup.

east tx skier
03-01-2005, 11:31 AM
rem, George used the 13x11.5 on his 93 190 S&S so he could get a little more hole shot (short course setup). If I recall, he may have had some initial issues with overreving the engine, but it wasn't a problem as long as he watched the tach. I'm sure he'll clarify this for you.

As for the four blade on a powerslot, I don't know. I think they recommend four blades for v-drives, but I'm not sure about gear reduction. I've had exceptional performance from my 3 blade, but, again, I'm running 1:1.

Brn85ss
03-01-2005, 11:36 AM
Thanks for the quick reply.It sure would be nice if someone had already installed one of these on their reduction trannys before I drop the big bucks.An opion other than the manafacturer is always nice.Thanks guys!

Footin
03-01-2005, 11:40 AM
Has anyone tried the 13X12.65? I am debating this for my 94 205 in effort to gain some top end. I wonder what this will do to the rpm's?
If it lowers them too much I may lose top speed.

86PowerSlot190MC
03-01-2005, 11:54 AM
Thanks for the quick reply.It sure would be nice if someone had already installed one of these on their reduction trannys before I drop the big bucks.An opion other than the manafacturer is always nice.Thanks guys!

Brn85ss,

What prop do you have at the moment???

I have an OJ 14 x 18 4 blade nibral. Iím looking to replace it due to a bad dent on one of the blades. The vibration is incredible at high speeds!!!! :eek3: Iím thinking of buying a second prop and sending the OJ to be repairedÖ.. Two props are better that oneÖÖ.Right??? But it looks like Iíll be staying with the 4 blade. Iíll let you know if things go ahead as planned.

east tx skier
03-01-2005, 11:57 AM
86P...MC, I had an OJ 4 blade repaired by OJ last summer for my father-in-law's boat. They do a fantastic job. His boat runs better now than before I banged up his prop. I think it ran me $85 plus shipping. My prediction is that you'll be really pleased with their work. The turn around once they had it was about 4 days.

Brn85ss
03-01-2005, 12:07 PM
I just got off the phone with Acme. All they make for the powerslot is the four blade period.Like you said the #381 is the only choice.Mine has the 14x18 3 blade OJ same prop that came with the boat never been repaired,it still looks great!My boat tops out in the high 40's with the 3 blade I just can't see getting that same top speed with the four blade. Powerslot whats your top speed with the four blade?