ACME 1235 Prop Compared to ACME 2315 on LS3 engine

[Cdoogles]

Hey crew,

I did a very non-scientific study on these two props this past weekend on my 2013 22 MXZ with the LS3 engine and wanted to share my results.

Wakeboarding: Fully weighted (~4000lbs + wedge),

ACME 2315: runs 41-4200 rpms at 23.8mph.

ACME 1235: runs 4000-4150 rpms at 23.8mph

Wakeboarding Holeshot (Full stop to 23.8mph)

ACME 2315: 14 seconds

ACME 1235: 26 seconds*

*1235 would not get on plane when fully weighted. Additional testing showed that the 2315 will get the boat on plane with roughly another 1000lbs of ballast over the 1235.

Top speed without weight:

ACME 2315: 40mph

ACME 1235 42mph

Additional notes: the 1235 revs higher when not weighted and will even hit the rev limiter. The 2315 has never hit the rev limiter when weighted or non weighted in my experience. The 1235 seemed to chase speed a little more than the 2315, but I can't really quantify by how much.

SUMMARY: The 2315 is hands down the better prop for my usage. Although it runs at a slightly higher RPM, it's ability to get the boat on plane greatly surpasses the 1235. The 1235 does not give you a large increase in top end and generally runs at a similar RPM setting to the 2315 for any given speed when unweighted.

Hope this helps people who are debating which prop to get! Thanks-

[DatTexasBoy]

Great to hear. I am using a 2313b. It has a different cup and is suppose to help lower rpm and not sacrifice any hole shot.

[WakeGirl]

Might be a nice thing to add to the propeller database, if you have a free moment.

[Cory]

Great info! I've been convinced of the virtues of the 2315. Thanks.

[nyryan2001]

Great to hear. I am using a 2313b. It has a different cup and is suppose to help lower rpm and not sacrifice any hole shot.

Not accurate.

I expereinced 2-3 seconds slower to 23mph on the 2313 vs the 2315. that difference in cup certainly affects hole shot some...but you also gain 1-2mph with the 2313 at WOT.

[Cory]

Seems counter intuitive that the lower pitch prop would not hit the rev limiter, while the higher pitch prop would... I guess the interaction between prop size, pitch, and cup is black magic.

[Nitrousbird]

That is a lot of RPM for 24MPH...you must be sucking down the fuel hardcore.

[gorilla]

Wakeboarding: Fully weighted (~4000lbs + wedge),

ACME 2315: runs 41-4200 rpms at 23.8mph.

ACME 1235: runs 4000-4150 rpms at 23.8mph

Wow, that extra ballast is killing your speed. With my 1235 at 26mph, I turn 3400 rpm. With my 1273 I'm turning about 3200.

Top speed is about 42mph, just like yours. Seeing about 44-45 with the 1273.

I bought a 2315 for high altitude/big weight backup.

[JoeA]

Cdoogles,

Thanks for sharing your experience with all of us. I have wanted to buy a spare or new prop for my boat (same as yours) and this data helps greatly.

[Cdoogles]

The ballast is definitely killing my speed and raising my RPMs and therefore fuel costs... However, I have friends that own brand new Xstars that would rather ride behind my boat because it is the largest, cleanest, most consistent wake around. An average wakeboard set when fully weighted uses 4-5 gallons of premium fuel which is still less than the 7-8 gallons the X-star uses with the 7.4l engine. Needless to say I'm very happy with the setup I am currently running

[Fman]

Great info, seems like very little rpm change at wakeboarding speeds. My 2315 arrives today, can hardly wait to give it a try. Also will be intetesting to see fuel consumption change between the two props.

[thtrog]

Gotta love the LS3, we've not pushed ours past the capability of the 1235 yet! Hope Malibu doesn't screw up and not offer the Indmar LS3 next year...

[Brett B]

Great data! Looks very similar to what I have experienced.

[JoeA]

The ballast is definitely killing my speed and raising my RPMs and therefore fuel costs... However, I have friends that own brand new Xstars that would rather ride behind my boat because it is the largest, cleanest, most consistent wake around. An average wakeboard set when fully weighted uses 4-5 gallons of premium fuel which is still less than the 7-8 gallons the X-star uses with the 7.4l engine. Needless to say I'm very happy with the setup I am currently running

I totally agree with the X-star's massive thirst for fuel.

[hunter77ah]

Wow, that extra ballast is killing your speed. With my 1235 at 26mph, I turn 3400 rpm. With my 1273 I'm turning about 3200.

How much ballast are you running?

[gorilla]

How much ballast are you running?

ZERO!!!!!!

Seriously, we mainly foil and the wake behind an unloaded (zero ballast) 2007 LSV is PLENTY good for foiling. I have loaded up all 4 tanks for a few wakeboard pulls, but didn't pay attention to my rpm's. I have about 1500lbs plus the stock ballast for surfing and the 1235 has been good enough, but I did buy a 2315 just in case I go up in altitude or get a boat full of people. I love the fact that you change a prop in 5 minutes, so......big crew, change it at the launch asap.

[Cory]

I switched out my 1235 prop for a new 2315. I had about 1.25" clearance with the 1235 and now have 7/8" clearance with the 2315. I hope this is sufficient clearance???

[pkh]

My two cents to add here:

- Swapped 1235 for 2315

- L96 on 23 LSV

- Surf RPMs dropped even though I was at 2k elevation, can't wait to try sea level

- Dropped from 46mph to 42mph top speed

- Boat seems much smoother and responsive whether we are loaded or not

- Fuel efficiency seems to be better for surfing

I think its a win, I can't see any downside from here...

[40oz]

Bringing up an old thread...sorry. Anyone else want to comment on making the switch from 1235 to 2313 or 2315? Just use as your weight prop or do you keep this prop as your all around prop? Happy with results?

[DarkSide]

I went from 1235 to 2419, this is the more aggressive version of the 2315. I absolutely love it, will never go back. I primarily surf, but do pull the occasional wakeboarding run. The 1235 would struggle with the weight a little. 5k ballast + wedge in 24 MXZ with LS3. The 2419 is much better, night and day really. If you run heavy i would consider going to the 2419. I lost 4 mph on the top end. But my fuel consumption is a little better. 5-6 gph surfing HEAVY

[40oz]

Anyone else care to comment on this? I am pulling the trigger this week and the two props in mind are 2315 and 2419.

Mainly wakeboard - full PNP + 1000#

[Raimie]

Anyone else care to comment on this? I am pulling the trigger this week and the two props in mind are 2315 and 2419.

Mainly wakeboard - full PNP + 1000#

I picked up a 2315 last week. Looking forward to try it with the 330 on a T22. Will post up when the ice melts and I get to try it out.

[mrnate450r]

I am using a modified 12.5" pitch 1235(bought it used that way) on my LSV with the LS3, and I feel like it cavitates under hard acceleration. I am going to go with a 2249. I feel like the 15" diameter will fix the cavitation and allow me to run a less aggressive prop and feel the same holeshot. I doubt you need the 2419 with your setup. The 2315 should handle all you throw at it!

[Capdoogie]

I agree with one of the above. The 2419 is better for wakesurfing and heavy ballasted boats it come as an option on the newer lsv. I had both, we liked the 2419's pull better than 2315.

[Capdoogie]

Now with that said I have an almost new 2419 prop that I will put up for sale soon. I don't need since my new boat has the lsa engine.