WELLCRAFT 232 eclipse repower and restoration!!!

[betayv]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

ok I forget to tell you guys, top speed with 8 people on board+cooler was 30 mph, 3200 rpm full throttle, Im looking for some info probable I will change the prop to get my max WOT 4300, the one Im using now is a 4 blade 14inch 21 pitch.

 

[avimgod]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

ok I forget to tell you guys, top speed with 8 people on board+cooler was 30 mph, 3200 rpm full throttle, Im looking for some info probable I will change the prop to get my max WOT 4300, the one Im using now is a 4 blade 14inch 21 pitch.

expect 200 rpm per pitch level change... sounds like a ways to go to get where you need to be... you could try a 15 inch pitch prop if engine RPMs go higher than desired drop back to a 17...

call around to see if you can find a marina willing to let you try out different props...

OH and if you do end up re-proping you could offer your current one for sale to offset costs...

I assume you got a 1.81:1 outdrive... and a new prop (my calculator allows for change in prop slip and ratio, but I usually start off with it at 8% if a new prop is being used.. but I am just guessing on the ratio you have... a lower gear ratio is indicating you have a higher prop slippage (which isn't uncommon for larger, heavier single engine boats..)

 

[sprintst]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

Nice to see you on the water. The boat looks great...enjoy your hard work.

 

[betayv]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

well Im thinking to go back to 14 inch 17 pitch 3 blade instead a 4 blade.

 

[avimgod]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

well Im thinking to go back to 14 inch 17 pitch 3 blade instead a 4 blade.

Your 4 blade will have less slippage than a 3 blade, but it ultimately is at your discretion... What do you plan to use the boat for??

From mercury marine...

"Three- vs. Four-blades?

Four blade propellers usually:

* Plane the boat faster than 3-blade propellers
* Keep the boat on plane at a lower speed
* Give improved mid-range speed at the same RPM as a 3-blade propeller
* Provide quicker acceleration than most 3-blade propellers
* Run smoother than 3-blade propellers
* Have better holding power in rough conditions
* Are less likely to ventilate in sharp turns
* Provide better low speed handling
* Are not quite as fast on the top end as a comparable 3-blade propeller"

If you want smooth easy operation, lower RPM plane, and mid range speed stick with the 4 blade, if you want TOP end speed go with a 3 blade... I am running a 3 blade prop now, but will be going to a 4 blade as I am looking to loose some top end (I am over 70MPH on GPS WOT... too much chine walk for my comfort level) and wouldn't mind better mid range and quicker plane..

 

[Cptkid570]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

I would think that your outdrive is the 1.50:1 ratio.

 

[avimgod]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

I would think that your outdrive is the 1.50:1 ratio.

The SE116 isn't available with a 1.5:1...

From the SEI site:

"SE116

COMPLETE UPPER & LOWER UNIT
Replaces MerCruiser's? Gen II stern drive (1991-present)

Upper Units are available in your choice of 1.47, 1.62, 1.81 & 1.94, 2.0 & 2.4 gear ratios. As with all SEI products, upper and lower units feature all new parts throughout. Lower units available with counter-rotation."

all the final ratios are just a combination of the upper and lower unit ratios, with the ever present itterative changes made to make "better" new product ranges...

 

[betayv]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

the outdrive is a 1.62.

 

[avimgod]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

the outdrive is a 1.62.

A 1.62 drive with a 17 inch 4 blade should get you low to mid 40s top speed at 4200 RPM... but the 4 blade prop will give you much better cruising handling and speed...not to mention a drop in the slippage..

The above numbers are theoretical based on a 1.62 drive and 8% slip... a lower speed will be the result of increased slip common with bigger boats, but the 4 blade prop should help.. 17 should get you the RPM you need, but you might end up needing to goto a 15 to get the RPMs up... try the 4 blade 17 and see...

FWIW, your current setup is showing over 30% slip... WAY inefficient...

 

[betayv]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

ok I will go that way 4 blade 14 inch 17 pitch thanks for all your help thanks.

 

[Cptkid570]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

When I got my SEI drive, they recommended the 1.47 for my 24' boat with a 5.7 260hp mercruiser.

Anyway, do realize that with 8 people on board, you were pretty loaded up. A lot of prop shops will sometimes let you test out different props to determine what is best for you... but, if it were a 3 blade, probably something around a 14.5 or 15 by 17 pitch.

 

[vegasphotoman]

Re: WELLCRAFT 232 eclipse repower and restoration!!!

awsome Job Betayv!

love the pic that shows all the NECCESSARY STUFF (bottles of booze etc) lol
awsome water you got in your area....must be like living a dream! Now you can have a fun summer on the water!

that chartplotter seems like one of the smartest items to install for an ocean goer like yours....great idea! hope it is working out well...

CHEERS and congrats!