47 davis......question

[perfectscore]

arent they historically a boat that burns alot of fuel??? anyone have first hand knowledge

[plyand glass]

Hey Perfectscore,
As a former employ of Buddy,its not so much that the 47' was a fuel hog, alot of the problem comes from the weight and the engines pushing it.
The 47' was a ocean going beast in it's day ,and still is really, but the old technology (8v92's) are not up to the task , partly due to engine weight vs. horsepower output.I think it's refered to as power density in diesel speak.
If you are looking to buy a 47' you ought to consider a re-power with a set of new or remanufactered CATS as they weigh less than the old 2 strokes and have a better fuel burn rate with higher output . I recall Buddy started a repower program when Cat came out with the 3406E's and it was pretty succesful,don't know how many he did though.
The 47' Davis is and was a awesome head-to sea boat, some of the latter model ones with lots of forward amenities did suffer a little stern walking in following sea conditions when light on fuel but what can you do but just hang on and enjoy the ride.godd luck and let me know how you make out!

[scattered_grass]

Hey Perfectscore,
As a former employ of Buddy,its not so much that the 47' was a fuel hog, alot of the problem comes from the weight and the engines pushing it.
The 47' was a ocean going beast in it's day ,and still is really, but the old technology (8v92's) are not up to the task , partly due to engine weight vs. horsepower output.I think it's refered to as power density in diesel speak.
If you are looking to buy a 47' you ought to consider a re-power with a set of new or remanufactered CATS as they weigh less than the old 2 strokes and have a better fuel burn rate with higher output . I recall Buddy started a repower program when Cat came out with the 3406E's and it was pretty succesful,don't know how many he did though.
The 47' Davis is and was a awesome head-to sea boat, some of the latter model ones with lots of forward amenities did suffer a little stern walking in following sea conditions when light on fuel but what can you do but just hang on and enjoy the ride.godd luck and let me know how you make out!

It's responses like these that make this site priceless. Great information here.

[triniswordfish]

we had some 8v92's in an old 50 hatt that we repowered with some yanmar 8sy's those engines were awesome
i think these would be awesome in a 47 buddy

[tribute]

I'm a previous owner of Davis 47 Hull #4/#13 (which I'll explain if anyone asks) with J & T 8V92 735 HP dry turbos.

I did a lot of prop and running gear tuning as well as adding Merritt lifting rails and transom wedges.

My cruise was 22 23 kts @ 50 GPM. It seems that anything over 20 kts was always 50 GPM.

There was a thread a year or so ago re: the construction of Davis's. My boat was kevlar on the bottom and hull sides, so it was a little lighter than the others, 44,000 lbs in the slings with full load fuel, water, and loaded for two months fishing in the Bahamas.

My family and I loved the 47 Davis, even getting used to the "keel walking".

Anyone interested in more Davis info, PM me.

[whtltg47]

I had a 1988 47 with 820 hp 10 cyl. Mans She would burn 2-2.5 gpm @ cruise. I could cruise 26-30 knts top out 33 knts.

[Fortunate One]

Twinswordfish makes a good point. The Yanmar 8sy stp's are a good fit for the old 892's. I believe they are almost a direct bolt in so little modifications would be necessary.

I'd live to see someone stick a set of those in a 47 Davis and see what it does.

Plus after that swap it would be a great time to update the salon.

[bruce31]

I have a 1986 47' with 800HP Cats, Navnet, Upgrades, for sale. Located in Virginia Beach, VA Call Bruce 571 237-3409

[gameover]

I have a 1986 47' with 800HP Cats, Navnet, Upgrades, for sale. Located in Virginia Beach, VA Call Bruce 571 237-3409

you got a pretty boat Bruce, would love to pull the trigger on that one. Looking to move the center console route? I got a seavee for ya... and shes got a Diesel too!

Taylor

[captnemo]

I'm a previous owner of Davis 47 Hull #4/#13 (which I'll explain if anyone asks) with J & T 8V92 735 HP dry turbos.

I did a lot of prop and running gear tuning as well as adding Merritt lifting rails and transom wedges.

My cruise was 22 23 kts @ 50 GPM. It seems that anything over 20 kts was always 50 GPM.

There was a thread a year or so ago re: the construction of Davis's. My boat was kevlar on the bottom and hull sides, so it was a little lighter than the others, 44,000 lbs in the slings with full load fuel, water, and loaded for two months fishing in the Bahamas.

My family and I loved the 47 Davis, even getting used to the "keel walking".

Anyone interested in more Davis info, PM me.

50 GPM Jesus how in the F*** did you afford to run that thing!