New ACME 1237 Prop -- Anyone Tried It?

**MNSuperAir** · 03-22-2007, 01:02 PM

RE: New ACME 1237 Prop -- Anyone Tried It?

This is a brand new prop for ACME. Previously they recommended the 856. I am also curious to see if anyone has used one. Here is a previous conversation about the 1237.

http://www.planetnautique.com/index....7+acme&start=0

**GCN-01** · 03-22-2007, 05:21 PM

RE: New ACME 1237 Prop -- Anyone Tried It?

It is a great prop for heavily loaded boats, but you can expect to see a big jump in RPMS at normal operating speed. Holeshot is unbeleivable. Some friends of ouyrs from here have one on their 220, but are looking to change ot the 1235 as their boat is not loaded enough for this prop to be of enough benefit.

I also have another customer with it on their 04 210 with ZR6. Same thing unreal holeshot, but not great for cruising. While another customer with 06 210 has the 857, it has that little bit extra for holeshot but there is not a huge difference in operating RPMS at wakeboard speed.

If you are loading the boat heavily and you are primarily wakeboarding or have a higher altitude, the 1237 will come into its own. If you are only using a medium load I feel the 856 will prob give a more balanced perfromance. The 1234 or 1235 is just gold IMO, but only if you can fit it...

**azwakeboarder** · 03-22-2007, 05:57 PM

RE: New ACME 1237 Prop -- Anyone Tried It?

Now I am really confused. I was told that the 1237 is just a smaller version of the 1234 or 1235 that will fit on the 210. If this is correct what makes the 1234 and 1235 gold, but not the 1237? I was told by ACME that the 1237 is about 1/2 inch smaller than the 1234 and 1235, does that somehow make it only for big loads, while the 1234 and 1235 is a good all around prop? Did I mention that I was really confused?

Thanks,
AZ

**bch** · 03-22-2007, 06:31 PM

I am confused too because the specs of the 856 and the 1237 are the exact same, the difference being a doubling of the "cup". According to Luke's Review, RPM's on the 856 are high at wakeboarding speed. What does the extra "cup" do? I was hoping it would provide good hole shot while lowering cruising RPM's. Also confused.

**jbwake** · 03-22-2007, 09:37 PM

We are the guys GCN-01 was talking about with the 220 running a 1237. It's great out of the hole and runs about 3600rpm while riding at 24mph so about 300rpm or so higher than the 645 team prop (which is actually pretty good with the ZR6). We run standard ballast and 800lbs of lead plus 5-6 people on average so not a massive load.

We've only used the 1237 a couple of times so far but it seems to use a bit of fuel when cruising because the times we have used it we have had to go searching for calm water. Having said that we also added 500lbs of lead at the same time as changing the prop which hasn't helped the comparison. That's my analysis so far although a few more days with not so much running around might give us a more realistic comparison on fuel consumption Vs the 645.

As for the 856 Vs the 1237. The 1234,5,6,7 all have much larger blades than conventional props. That's how they can run a really small 14.25" pitch and not rev like crazy. I've not tried an 856 but I would think the larger blade area of the newer props would make them more efficient.

The 1234/5 sounds like a great all round prop however if you have a pre 07 210 you cant run a 14.5" diameter prop (not enough clearance to the hull) so you have to run a 1236/7 which is 13.5" diameter although the same pitch so it will rev slightly higher.

bch - if you have a 2002 SAN you will need a RH rotation prop. It seems strange to me that ACME suggested a 1237 because it is LH rotation to suit the never PCM V-Drive

**GCN-01** · 03-22-2007, 11:50 PM

Re: RE: New ACME 1237 Prop -- Anyone Tried It?

Originally posted by azwakeboarder

Now I am really confused. I was told that the 1237 is just a smaller version of the 1234 or 1235 that will fit on the 210. If this is correct what makes the 1234 and 1235 gold, but not the 1237? I was told by ACME that the 1237 is about 1/2 inch smaller than the 1234 and 1235, does that somehow make it only for big loads, while the 1234 and 1235 is a good all around prop? Did I mention that I was really confused?

Thanks,
AZ

The Specs aren't the same:

856 - 13.25 x 15.5 .060 Cup
1237 - 13.25 x 14.25 .120 Cup

I Am not a PROP engineer by any stretch, just going of the feedback of my customers and the research we have done ourselves with the 1234/1235, 856/857 & 644/645. We have sold only one 1237 prop & the feedback we got was very similar to what JBwake has described, incredable holeshot, but increased RPM & fuel consumption.

The 1234 & 1235 are equally as good under the same loads as a 1237. The bigger diameter of the blades just seems to give it that more balanced performance than the 1237. Having said that for previous model 210's you cannot fit the 1234 prop on as JB said so if you want the same holeshot as the bigger prop you should look at the 1237. The 856 I have tested I observed a 100-150RPM increase at wakeboard speed which I thought acceptable given its intended purpose.

Don't mean to confuse anyone here, just trying to give my feedback on these latest release props, as I don't beleive you get the same balanced improvement across the range with the 1237 as you with the 1235.

I Summary:

644 or 645 - Factory prop from Naut on Team V Drives. Good for people only using factory ballast. Delivers good fuel economy across the board unless heavily loaded. The prop against which all others are measured.

856 - The next step up in performance for holeshot from the factory team prop. Approx increase of 100-150 RPM across operating speeds. No noticeable increase in fuel consumption. Balanced performance across the board with slight drop in top end speed.

1237 - I beleive this was developed to give similar holeshot performance to the bigger 1234 or 1235 series, but can fit on the earlier model 210's. Instances of increases in RPM by up to 350. Not great for cruising, but will give increased performance for heavily loaded boats or boats operating in higher altitudes.

1234 or 1235 - Best prop on the market IMO. Outstanding holeshot, approx 100 rpm increase across the board of operationg speeds. Can only fit on current 210, 220, 226 or 236 (haven't tried it on the 211). Have run this prop on my own personal 226 and love it as well as the OJ equivalent on the Australian Pro Tour 220 & give two thumbs up over my std team prop.

Hope that clears up my earlier post

**azwakeboarder** · 03-23-2007, 09:32 AM

RE: Re: RE: New ACME 1237 Prop -- Anyone Tried It?

Thanks for the information guys! What prop should I go for if my '06 210 currently has an ACME 381 on it and I am looking for a much better holeshot (even with stock ballast and three people the boat struggles - Signature Series). I am looking for a good all around prop, but have been given 4 different recommendations from ACME. I use the boat for wakeboarding but like to explore Powell and Mead with it too. I am guessing a 800 series but with the new rotation my '06 has.

Thanks,
AZ

**bch** · 03-23-2007, 10:52 AM

RE: Re: RE: New ACME 1237 Prop -- Anyone Tried It?

Thanks for the feedback. You are correct jbwake and GCN-01. ACME wrote back today and clarified that I need the 1236. I was also wrong on the specs...here are the specs that ACME gave me:

Acme 1236 13.5 R 14.25 four blade nibral 1 1/8" .150.
The 856 13.25 R 15.5 four blade nibral 1 1/8" .060 cup.

Looks like the 1236 has slightly larger blades and considerably lower pitch. Looking at that, I would imagine the hole shot would be better, RPM's would be higher, fuel consumption would be higher, etc. as you all have highlighted. Any other relevant comments? Likely to be easier to hold speed with the lower pitched props (1236/856)? I would imagine double ups would be easier to drive and maintain the speed of the boat coming off the turn at a minimum. Does it effect the firmness of the wake at all? The 856 has worked well on my friends' SAN's with weight and at altitude and I am considering just going with that unless convinced otherwise....though it would be nice to have the option to add considerably more weight or people if needed.

Thanks for everyone's input....

**sperbet** · 03-23-2007, 12:01 PM

Can anyone specifically comment on the 856 vs the 1236? I currently run the 856 and am extremely happy with that prop. Have no experience with the 1236. I'm about to buy a new prop and would consider making the change if it's worth it. It sounds like the 1236 is even more aggressive. Is that correct? Thanks

**OnlyNatique** · 03-24-2007, 12:39 AM

Acme 1285 prop

I was just at a local acme shop and they told me that they have a new prop out that is basically the wakeboarders prop. Its the 1285 and it fits on a nautique. I was informed that this prop is 14.5 x 14.25 The guy told me that it creates a bigger wake for the boat because of the 14 pitch sucks the back end of the boat down thus causing the wake to increase. Anyone know anything about this prop or heard this?

**zax185** · 03-25-2007, 10:09 AM

RE: Acme 1285 prop

Just got my 1235 on Thursday and put it on the boat Saturday. I am running about 4,000RPMs at 30MPH and feel that the wake is larger. I need to get the GPS out and see if the speeds are on. This only the forth time I have had the boat in the water. I need to recalabrate the digital pro, I tryed to ski yesterday at 34.2 and only got to about 27 it was really cold when i had to go down. Going to get the GPS out Monday and see what numbers i get.

**bch** · 03-26-2007, 04:04 PM

RE: Acme 1285 prop

Called ACME and spoke to Jim. He talked me through the differences in width, pitch, and cup and recommended the 1464 (same specs as the 1236, but lower cup) for increased hole shot at altitude and weighted for wakeboarding. ACME does not have any test information on these props as they are newer, but based on best guesses Jim was saying that the 1236/1464 would have better hole shot and would be generally more efficient than the 856. He said the 856 may be phased out over time as it is designed solely for hole shot and not for efficiency at speed. I think I will roll with the 1464 on ACME's recommendation, unless anyone has any negative feedback on this prop.

**OnlyNatique** · 03-26-2007, 07:47 PM

props

I currently have a ACME 645 prop on my 210 and it works fairly well. Great hole shot and average crusing. I was looking for something that would allow me to cruise at a lower RPM.. Anyone else running the 645? What do you think if so?

**azwakeboarder** · 07-19-2007, 12:03 PM

RE: props

BCH,
Did you ever try the 1464/1465?

What's the verdict?

Thanks!

New ACME 1237 Prop -- Anyone Tried It?

New ACME 1237 Prop -- Anyone Tried It?

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