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View Full Version : Ok, final decision time on my Acme props


RobertT
11-10-2005, 03:09 PM
I have done several tests on the three Acme props that Acme sent me.

Actually, not all that many, but enough.

To be honest, I have not found a huge difference between them.

I have one of the following:

Item 901: 13.00 x 11.5 VL3B, 1.125 spline
Item 979: 12.5 x 12.625 VL3B, 1.125 spline
Item 853 (I think) 13.00 x 12.5, 1.125 spline

I need to send two of them back.

I need a tie breaker....comments?

by the way, if anyone wants the other two let me know, 300 bucks each. Brand new other than 10 minutes each testing. Still in the box.

Workin' 4 Toys
01-14-2006, 08:01 PM
What did you end up doing?

RobertT
01-14-2006, 09:33 PM
You know...I forgot! I tried all three for several days, then picked the one that I thought was best. I think its the 979.

I was very surprised. After many tests, all with identical conditions, the three props were VERY similar. They all were within 2mph topend. They all were within 200rpm at 30mph. In the end, I decided to go with the prop that allowed my WOT to be exactly 5000 rpm. The 853 kept it down to 4780 rpm.

My reasoning was that because we frequently have a load, and board more than anything else, I was better off having a prop that put a little less stress on the motor. If memory serves, it had the same top speed as the 853 too.

It was a strange situation. After everything that I had heard about Acme props changing the boat entirely, I figured that I would see a noticeable difference between the props. Without my gps, and a notepad I would not have been able to tell any difference.

I do remember that the prop that I kept on it pulls like a mule...I like that.

Jim@BAWS
01-14-2006, 09:42 PM
You know...I forgot! I tried all three for several days, then picked the one that I thought was best. I think its the 979.

I was very surprised. After many tests, all with identical conditions, the three props were VERY similar. They all were within 2mph topend. They all were within 200rpm at 30mph. In the end, I decided to go with the prop that allowed my WOT to be exactly 5000 rpm. The 853 kept it down to 4780 rpm.

I do remember that the prop that I kept on it pulls like a mule...I like that.


That is a pretty significant difference !

With and MCX you should have tried a 13 x 14 Stainless OJ
You would have gained about 3 MPH minimum

Workin' 4 Toys
01-14-2006, 09:53 PM
That is a pretty significant difference !

With and MCX you should have tried a 13 x 14 Stainless OJ
You would have gained about 3 MPH minimum
Thanks for the info. I'll find that useful soon!!!