New Acme 540 Prop

Some of you may have read my post about damaging my prop at the boat ramp a couple of weeks ago. I just ran my 80' SN with a new Acme 540 today. I had an OJ 4 blade on it and thought I had good merchandise. The dealer told me OJ was the way to go as far as replacement goes...probably because they don't sell Acme's...after reading Keith's thread on the 540 and doing further research that's what I went with and what a huge difference in performance it made! I lost maybe 1-2 mph on top end(still does 42-43)but out of the hole it puts the OJ to shame. If anyone is considering a new prop, give the Acme a try - if you don't like it, you can send it back. That's my .02 worth.   

.. I should have clarified....I did have 2 pa$$engers when I checked the speed. Before it seemed like it would do 45-46, now just under that, but I still can't get over the hole shot.    

I gained 3 MPH with my new ACME 540. I had the OJ, 4 blade before. The ACME 540 is great at low and high end. Some serious bite that thing has!

Ken

...double M I'd love to head down to Conway and tour the chain again, it's been several years. You're welcome to head up to the Winter Park chain sometime too, although we are a little stale on the sand bar gig you guys have going on.

I was using an acme 540 and I switched to an Acme 208 4 bld. I like the wake better with the 4 blade prop. The performance is about the same, real good!

I've got the 1.23 to 1 tranny on my '95. Looking up OJ and ACME prop guides, it seems that the OJ 3-blade #428 13x15.5 and the ACME 3-blade #612 12.5x15.25 are recommended. What is the ACME #470 and should it be the one to go with ?

SkiDim612

This isn't the one ???

tr, thanks for the info! I'll be looking you up when it's time.

One of these days Schick will come out with an EVEN BETTER razor--9 BLADES to give you a SUPER DUPER CLEAN shave. Are props like that too? Will we see 5 blades soon? Followed up by 6 and 7 blade props?

The Dude wrote: tr, thanks for the info! I'll be looking you up when it's time. One of these days Schick will come out with an EVEN BETTER razor--9 BLADES to give you a SUPER DUPER CLEAN shave. Are props like that too? Will we see 5 blades soon? Followed up by 6 and 7 blade props?

Like Jimbo pointed out, there are some props out there with more blades. As I understand it, the fewer the blades, the more efficient a prop is. Thats why 3-blades generally have a higher top speed than comparable 4-blades. The new Acme's have a ton of surface area, so they dont give up much (if anything) out of the hole compared to 4-blades.

I think I read somewhere on this site that race boats use small 2-blade props and tugboats use large 4 or 5-blades. The analogy seems to make sense.

I bought mine from New England Correct Craft. I don't know where the rest of the guys got theirs.

I noticed with the 540 prop, it puts pressure on the steering wheel when turning right. You can actually hear it digging in. I feel like my boat is going to suck other boats in when I pa$$ them.

Ken

Tim,

Are you heading to Brad's tonight?

Ken

...that OJ has seen better days, no doubt. I purchased my 540 from Delta Propeller and received it within 3 days...they were very helpful and I believe all said and done after our discount it came to right at $300.

Nautique2001 wrote: Tim, Are you heading to Brad's tonight? Ken

Ken, Ill be there!

What type of boat are you running the OJ 4 blade on ?

Has anyone ever seen or heard of this prop?

check this out