ACME 430

Perfect shape. $300 shipped to cont. 48. I will take pics.

Can I try before I buy? Bring it to Tennessee. I'll give you a call.

Regards
Gary

I'm not sure the 73 has enough motor to spin it. I would not want to hold up a sale for you. If you still have it in a few weeks, bring it.

Regards
Gary

It spun a 540 to 5050-5100. It spins its current 13x13 OJ four blade to the same. The acme was 49 plus mph. The OJ is 48 plus. The fastest prop was the 13 x 13 federal at 50 plus 5100 rpm plus, all GPS.

If it will be that much of a rpm drop then I would not be interested.

If you get to try that let us know how it goes, I'd like to see that comparison as well.tuff one to call without trying

Did not try it.

Get it Steve.

Edit: I posted that the same time as HW. ha.

What type of R's is it turning WOT right now Steve?

Ha I meant The BFN Steve Steve ;).

Put the 208 on it? Turns my boat about 4350 WOT at 43.5 ish gps mph.

Hollywood

Finally got to try the 430. Very nice!
I was feeling a little vibration with the stock prop that was on the boat. The 430 ran perfectly smooth. The holeshot is much better. Top end seemed a little quicker, though I had no GPS to get an accurate speed. The speedo was pinned over the 50 mark. Sorry, I didn't check the RPMs at WOT. Will do that next weekend.
Thanks again.
Steve

Steve, theres not much youre going to be able to learn from how a 430 runs on Steve's boat. The hull and powerplant are just too different from yours to draw any meaningful comparisons. In my experience, the 430 overturns by just a tad on a BFN, so my guess is that 50-52mph would be in the 4800-5000rpm range.

Talking Acmes, the difference of 1" pitch (all else being equal) is approx 300-400rpm. So, if youre really turning that 540 nearly 5k, then the 430 should back it down to ~4600. Im not convinced the boat will perform better with a larger prop on it, and Im not convinced it will be "easier" on the powertrain to lower the RPM (larger prop = larger load) but if you just want to cut the revs some, then the 430 will certainly do that.

Hey guys,
Its been kind of a "screwy" summer, haven't had the boat out a lot. For kicks, I have been messing around with some of the other props I have.

I only ran the 540 at GL and a couple hours on the river one evening. I absolutely loved the "wildness" of the thing at all RPM's. Would love to get some more time on the prop. Will probably throw it back on next time we go out.

In my mind, I wish I could bring the r's down 4 or 500, but probably not the end of the world spinning 5G either.

I need to get a "real gps" (hmmmm, Christmas is coming :)and run MPH comparisons at different RPM's of each prop. Probably be next summer before that happens tho.   

.

Tim, Running the Ellis 13-14, the boat has been very easy on fuel. In the little running on the 540, it's hard to say what will happen there....really don't expect a big difference.

The majority of our running is cruising... As much fun as the 540 is, I know I'm going to be running hammer down more often. Fuel economy is important, but I am more concerned about over revving this "tired old" SBC. That's where I keep wondering about a bit more pitch.

Doubt we will get out much more this year, but I will probably start running the 540 as my "every day" prop for a while and go from there.

.

Is the max rpm set by the hp/torque curves? The older GM 5.7 marine engines had a redline of 4k and the newer ones 5k. My brother's Century which has a 1977 engine is 4k. It doesn't seem it would be good for the engine to run it up to 5k