Bertram33 User Forum

I just finished my repower in Wanchese. Got to finally see what she'd do. It ran 31.5 against the wind and tide and 33.3 opposite direction. WOT was 3150. Full fuel, water and 3 head. 370 Cummins, ZF 1.5 to 1. Props are 22 x 22 3 blade Acme's. I am estastic! I would post some pics of my new interior if I could figure out how. Grady

Grady, That's great. You move fast. If yo don't mind my asking, what was the price for the Acme props? Here's the link on posting pics: http://www.bertram33.com/forum/topic.asp?TOPIC_ID=85 Regards, Doug L. 1986 33 Bertram FBC Queen Elizabeth Marblehead, MA [img]http://www.bertram33.com/photogallery/p ... sabeth.jpg[/img]

the numbers are on the money.my 35 runs very similiar but my wot is only 3050 with 21x22.good luck with those 370s great choice.

The props I think were around $1400/each. What attracted me to them was I called the owner of Acme and after I told him I wanted him to build me a set of 4 blades..........he convinced me to not do that. He said we can build you 4 blades but our 3 blade props are as smooth as a 4 blade and have the same total surface area as a 4 blade yet they have the topend of a 3 blade. He said because they CNC them they are within a human hair for tolerance and just don't vibrate like other 3 blades......which is why everybody goes for the 4 blade. So his reasoning was you get the same total surface area as a 4 blade but topend of a 3 blade. I am very happy with the numbers and they are extremely smooth. He told me Acme's are so precise they always recommend more prop vs other brands as they give speed for the same setup. I may try some more cup as there is more to be had but I do not have a tower in place yet so I will probably leave them alone. Just Right uses Acme's and every boat they reprop jumps upwards in speed........that's why I called them. They just changed a Carolina Classic with 425 Cummins to Acme's and the speed went way up. Grady

Tell me about these props is it just the tolerances that make them that much better? Buzz buzzk 1988 Bertram 33 FBC Buzz Off Morehead City, NC

Buzz, Here's the testimonial on their site. http://www.acmemarine.com/ Carolina Classic is an hour from me. Grady Having been an inboard boat builder for over 20 years, I was more than a little skeptical when I was told by Acme Propellers that I could put their props on my boats and be confident that every set would perform the same as the next. One of the biggest problems we had with props was matching them up to the different horsepower and torque levels from engine to engine. Couple that with the traditional problems of props that are dependent on someone with a hammer and a grinder trying to make them the same and it just adds to the problem. As a result of such inconsistencies with props, we were never really able to develop a dependable curve from which we could know exactly what the boat should be doing at a given RPM. With the outstanding consistency of Acme props we are now able to develop the curves needed to tell us exactly how the boats should be running at any given RPM. This data has become one of the best tools in dealing with any performance issues that might arise. We can now tell our customer to run at a specific RPM in the mid range and immediately tell if the boat’s bottom or props have been fouled, or if the customer is indeed having engine problems. Add to this the greatly increased efficiency of Acme props and it just becomes a win-win situation. We put Acme props on our boats direct from the factory, and I can honestly say that for more than three years now we have yet to receive a single prop that has not performed exactly as it should. On twin installations our engines are now normally matched within 10 to 20 RPMs, and from boat to boat within 1 to 2 tenths of a knot in speed. Acme Propellers do exactly what they say they do. They manufacture the fastest, smoothest, quietest, most accurate and most consistent props your money can buy.â€� — Mac Privott, President, Carolina Classic Boats Acme Marine is renewing expectations of inboard propeller buyers everywhere. All Acme Propellers are engineered, manufactured, inspected and shipped directly from Acme’s U.S. facilities. Consistency and Precision is built into every Acme Propeller Acme’s CNC process provides the most accurate method for consistently producing propellers to the correct diameter, pitch and cup, etc.. Through this process, Acme can “dial-inâ€� to make incremental changes in any or all of these elements, which enables the development of an optimum propeller for each specific make and model of boat. Why spend time and money reworking or returning problematic propellers? Many buyers are switching to Acme and are seeing their propeller return rates drop from whole numbers to decimals. In addition, boats using Acme Propellers are breaking out of their old envelopes and discovering their true performance potential — directly out of an Acme box. Key Benefits: 100% CNC Accuracy & Consistency Revolutionary Performance Exceptionally Smooth Operation 100% Made in the U.S.A.

Those props sure sound nice. Thanks for the information. I've seen those props on other boats but didn't know the name of them. Buzz buzzk 1988 Bertram 33 FBC Buzz Off Morehead City, NC

quote:Originally posted by Grady Smith I just finished my repower in Wanchese. Got to finally see what she'd do. It ran 31.5 against the wind and tide and 33.3 opposite direction. WOT was 3150. Full fuel, water and 3 head. 370 Cummins, ZF 1.5 to 1. Props are 22 x 22 3 blade Acme's. I am estastic! I would post some pics of my new interior if I could figure out how. Grady

OOPS now the big question. How much did the whole ball of wax cost. Do you have to retro the exhaust etc ? I have a 78 FBC would like to do exactly what you have done

I want the same exact setup - as soon as I save enough $$ I am assuming your numbers are MPH - not knots? Let us know when you figure out your cruise and fule burn.

i believe those numbers are knots my 79 does similiar # with a 26 kt cruise @ 2600rpms with a 22gph burn.

Good Morning. I am leaving to check on the boat. Very high winds as Buzz will probably chime in on here. I am going to go down and put some new heavy duty lines on the boat. The scuppers were even with the dock yesterday afternoon. It's knots not MPH. I can go into a complete explanation tonight on cost but the engines were $16,500 and $18,500.......new ZF trannies, Cables, controls, struts, shafts, props.......seems like the number was around $79,000 to the cummins dealer. Some of the work was done outside of them by the same guy that actually did the repower. They didn't want to get involved in some of it. Said they would have to charge a markup to cover Workmans comp and such. Exhausts are new and I remember about $3,500. This was the first thing done and I almost passed out. But then you just get used to the checks....... I did side exhausts and they are awesome. At troll speeds they are underwater and there is zero smoke as it gets carried backwards underwater.....Seems like the labor part of the $79,000 was around $18,000. Awlgripped the engine room, new dripless shafts, new logs, strut pads, rudders pulled and redone with all new hardware and steering linkage. This was about the extent of what was done and then after these things were finished I continued onward with Mark........contracting him directly. New bat charger, wiring, plumbing, Northern Lights new pad to lower unit lower in boat so enclosure could be installed, new muffers for genny, new SV-20 underwater lights, Completely new Buddy Davis interior by Danny Martin including a Teak Table. New cabinets, New rear Teak door, new teak custom frame for the door, New teak bulkhead, new rear glass instead of the alum windows, new rear cockpit panels out of starboard, Flagship marine digital hear and air with 4 outlets, one under dinette in cabin at back, standard one above lower helm in the window, one in front V berth and one in the bathroom. I love that one. I can go in heat this time of year..........got to run now. I will try to get some pics. Grady

I sure hope you will post some pics!

Wow that sounds nice. Where do you normally dock your boat? And yes it has been windy, I recorded a gust at my house of 47 yesterday afternoon. Buzz buzzk 1988 Bertram 33 FBC Buzz Off Morehead City, NC

Normally in Chocowinity. It's in Wanchese right now finishing us the repower. Got the pulpit and windlass left to do. I will definitely be coming down to Morehead this summer a bit. Got some dock rub but no major damage. Just bent my SS vent on the rear corner from all that wind. We will have to get together. Grady