Prop selection question

I’m looking at ordering an Acme prop for my 454, it’s a LH motor. Dumb question does this mean I order a LH prop? I was looking at getting the Acme 541

I’m not sure I’ll have to take a measurement, but when I punch the throttle at 30 or so it cavitates. Out of the hole it doesn’t cavitate though, guessing whatever on there is wrong

KENO wrote: It would be a lot easier to read what's stamped into the hub for diameter and pitch. You must have 4 thousand or so HP if it acts like you describe above, cavitating when you punch it at 30

Haha makes sense, how about a RH prop would that cause it? Print is hard to make out except for one code. Does this look like an RH prop?

Also measures out to an 11” prop.

https://drive.google.com/file/d/1W9mwUGi4wbtHeQJ1y5_0twl2P8nAhnDN/view?usp=drivesdk

https://drive.google.com/file/d/1qej4GlOPJpcaY5bv8g_PW0Z87VTT5yb0/view?usp=drivesdk

https://drive.google.com/file/d/1oYGUAEFVdVZuhp0gNQU1lbL0t7HPB-F-/view?usp=drivesdk

That engine should spin a 13x14 5200rpm abouts or higher

You put a 451 on it it's going to frag the engine

GottaSki wrote: That engine should spin a 13x14 5200rpm abouts or higher You put a 451 on it it's going to frag the engine

451 that must be a case of inverse, modified dyslexia or something

You better turn the key off and hide it somewhere till you get something like Gotta Ski mentioned as a starting point to keep the RPM's down

GottaSki wrote: Indeed, we advise against the 541 you are looking at!

Sounds good thanks. How about the acme 425? It’s a 13x13. All the 13x14 are no longer available for some reason

Mav

You have a PM

GottaSki wrote: why the chub for an acme? What's your intent with the boat?

Haha I hear they’re good props. I’ll be pulling skis and tubing, probably mostly cruising though

Crmaverick wrote: Haha I hear they’re good props. I’ll be pulling skis and tubing, probably mostly cruising though

I see
Well a great prop but wrong size will still leave you flat, or worse, broken, you understand.

Something is amiss, continue to be patient with our inquiries, and we'll get you sorted out and undo what has been mismanaged prior to it getting to you.

A run of the mill 13x14 federal should still pull 3 footers on that boat so its not like you should need to experiment with an unproven recipe to get similarly good, solid performance.

GottaSki wrote: Crmaverick wrote: Haha I hear they’re good props. I’ll be pulling skis and tubing, probably mostly cruising though I see Well a great prop but wrong size will still leave you flat, or worse, broken, you understand. Something is amiss, continue to be patient with our inquiries, and we'll get you sorted out and undo what has been mismanaged prior to it getting to you. A run of the mill 13x14 federal should still pull 3 footers on that boat so its not like you should need to experiment with an unproven recipe to get similarly good, solid performance.

My next issue is how do I pull that old prop with that collar in the way?

Crmaverick wrote: My next issue is how do I pull that old prop with that collar in the way?

You may need to disconnect the shaft coupling at the trans and pull the shaft aft so you have room for the puller between the collar and strut. Then pull the collar along with the prop.

I recommend looking at the shaft very carefully and see why the collar is even on there. I suspect there's damage to the tapered bore of the prop.

Don't forget to lap the new prop to the shaft.

TRBenj wrote: That’ll come out of the hole well but you’re gonna need more prop up top... probably not the best all around choice. At least for an early hull with the HO. Delta is a site sponsor and $10 cheaper with free shipping FYI.

Maybe I’ll send this one back if I don’t like it, what do you recommend for a delta prop on a 454 2001?

KENO wrote: Crmaverick wrote: GottaSki wrote: Crmaverick wrote: Haha I hear they’re good props. I’ll be pulling skis and tubing, probably mostly cruising though I see Well a great prop but wrong size will still leave you flat, or worse, broken, you understand. Something is amiss, continue to be patient with our inquiries, and we'll get you sorted out and undo what has been mismanaged prior to it getting to you. A run of the mill 13x14 federal should still pull 3 footers on that boat so its not like you should need to experiment with an unproven recipe to get similarly good, solid performance. I actually ordered a acme 425 this morning https://www.skidim.com/products.asp?dept=1130 Skidim recommends them on the barefoot 454, ordered from nettleprop.com for $345 Let's hope somebody replaced that original 1 inch shaft with a 1 1/8 shaft somewhere along the way Otherwise it'll be a loose sloppy non fit Hopefully a prop puller is in the order too, no fair beating on the old one with a hammer. Good talking to you earlier today I guess you won't need my loaner prop to try

Thanks yeah I saw that they were used on the barefoot 454 so I figured safe to order. I did order the puller and hardware kit

KENO wrote: They're not used on many direct drive Barefoot 454's at all since forward would be reverse and vice versa. And .....................the direct drive Barefoot 454's had a one inch shaft. Hope you got it right

Hmm well the 425 I got is a LH 1 1/8 shaft.

Would a 13x12 prop have more top end speed than a 13x13?

We are talking about 400 hp at 5100 ish rpm LH engine in a 2001 - acme 431 is the correct prop. Unfortunately mine didn't survive more than a day or two before I destroyed it, but worked great while it was on.