another prop question

[R-mallis]

i have a 1990 sport with a 1.23:1 trans and im looking to upgrade to a 4 blade prop. my 3 blade is a 14x16 and skidim says i should go with the same on the 4 blade, others have told me i need a 13x16. any info would be great. thanks

[99ProAir]

Call Acme Prop!

[RodHess]

R-mallis,
I just changed to a 4 blade ACME # 328. (13X15.5) It made a huge difference in the low end and how smooth it pulls out of the hole. My dealer advised me that I may need to keep an eye on the rev limiter at full speed. I never run at faster then 35MPH, so that won't come into effect. He sold me the prop for $349 shipped to the door.......

[Daryl]

RodHess - what boat/motor/transmission do you have? and how many RPM at 35MPH?

[jensenbk]

Prop

I just bought a four blade with the same transmission I stayed with a 14 x 16 but the other would work also. Go to skidim.com. That is where I got mine they give you both choices .It depends on the make of the prop.

[RodHess]

Daryl,
1992 Nautique Excel V-Drive. Ford 351, 1.23:1 tranny, 1:1 V-drive. Not sure on the RPM's at 35. I'll check it out next time out.

[wburg64]

Call OJ he was the first to build 4 blade for
skiing , and CC. Call 800-359 9730 ask for Eric, he makes them ,Brass, SS, and CNC, custom, also repairs.

[Daryl]

RodHess - thanks for the info - ACME has recommended the 422 for me (slalom mostly) I just haven't had the time/cash to get one - so I am always curious what kind of RPM's people are running and at what speed.

My prop is in poor condition and I can only run about 4000 RPM at WOT - boat is running perfectly so I suspect the prop is the culprit but has no vibration and pulls well so for now it will need to do!

[RodHess]

Daryl,
I ran across this yesterday. You may want to keep an eye on it. http://cgi.ebay.com/ws/eBayISAPI.dll...685161542&rd=1

[RodHess]

Or on this site, http://planetnautique.com/index.php?...iewtopic&t=991