Welcome to Carver Yachts Owners Forum
We are a boating forum for owners of Carver Yachts to enthusiastically discuss all aspects of Carver Boat ownership. Whether you are looking for your first Carver or currently own one, you are sure to feel at home on CarverYachtOwners.com
You are currently viewing our board as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to searching the forum topics, post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
Most economical cruising speed
- MyPleasure
- Deck Hand
- Posts: 68
- Joined: October 18th, 2022, 7:08 pm
- Vessel Info: 1992 Carver 36 aft cabin with Volvo 740b engines. Westerbeke 5kw generator. Bought the boat in Portland Oregon in June, and a friend and I brought it up to Sidney, BC. Great trip!
- Location: Victoria
- Has thanked: 2 times
- Been thanked: 8 times
Re: Most economical cruising speed
As far as the Carver 36 aft cabin we currently have, with the big blocks, I guess that it’s going to be cruising at hull speed for us. At almost $10 for a US gallon of gas here in BC, slower is better!
Has anyone ever installed the Holley fuel injection on their engines? Just wondering what the difference would be in fuel consumption over the Edelbrock carburetors on the engines now?
Thanks again fellas!
1st Carver 1987 32 Aft Cabin
2nd Carver 1989 4207 Aft Cabin
3rd Carver 1995 350 Voyager
4th (current) 1992 36 Carver Aft Cabin
- MyPleasure
- Deck Hand
- Posts: 68
- Joined: October 18th, 2022, 7:08 pm
- Vessel Info: 1992 Carver 36 aft cabin with Volvo 740b engines. Westerbeke 5kw generator. Bought the boat in Portland Oregon in June, and a friend and I brought it up to Sidney, BC. Great trip!
- Location: Victoria
- Has thanked: 2 times
- Been thanked: 8 times
Re: Most economical cruising speed
As far as the Carver 36 aft cabin we currently have, with the big blocks, I guess that it’s going to be cruising at hull speed for us. At almost $10 for a US gallon of gas here in BC, slower is better!
Has anyone ever installed the Holley fuel injection on their engines? Just wondering what the difference would be in fuel consumption over the Edelbrock carburetors on the engines now?
Thanks again fellas!
1st Carver 1987 32 Aft Cabin
2nd Carver 1989 4207 Aft Cabin
3rd Carver 1995 350 Voyager
4th (current) 1992 36 Carver Aft Cabin
- Rocketman
- Deck Hand
- Posts: 67
- Joined: October 26th, 2020, 8:07 am
- Vessel Info: 2009 44 Sojourn w/ Volvo Diesel D6-500 engines and IPS drive system.
- Location: Huntsville, AL
- Been thanked: 17 times
Re: Most economical cruising speed
If you want to run on - my experience is that you need to get up on plane a little more so your not dragging as much.
Typically this ends up being about 3/4 throttle to get the boat really up on plane and running efficiently.
With your fuel flow meters you should be able to do some trials and find your sweet spot for hull speed and on plane.
- km1125
- Admiral
- Posts: 3347
- Joined: February 28th, 2017, 6:04 pm
- Has thanked: 59 times
- Been thanked: 969 times
Re: Most economical cruising speed
MyPleasure wrote:Source of the post
.... Has anyone ever installed the Holley fuel injection on their engines? Just wondering what the difference would be in fuel consumption over the Edelbrock carburetors on the engines now?
Thanks again fellas!
Going to fuel injection won't really make the engines more efficient over a carb, unless your carb is having issues and not operating correctly. It's much easier and cheaper just to fix the carbs.
Fuel injection can be more efficient, but you need to add a lot of other features to do that other than just injecting the fuel. You need to add a closed-loop mechanism (air/fuel ratio sensors in the exhaust, normally O2 sensors) and need to optimize the timing and the fuel amounts for all speed/load ratios more accurately. Normally on marine engines they run a little richer and with a little less spark advance so they are more tolerant of all kinds of issues (like non-optimum fuel) so they don't destroy themselves under load.
- Cooler
- Admiral
- Posts: 1567
- Joined: May 22nd, 2018, 12:09 pm
- Vessel Info: 1995 Carver 330 Mariner
Twin 350XL Crusaders
Home port: Menominee, MI - Location: Green Bay, WI
- Has thanked: 66 times
- Been thanked: 371 times
Re: Most economical cruising speed
( All weather people have to say this on air, near lakes )
- MyPleasure
- Deck Hand
- Posts: 68
- Joined: October 18th, 2022, 7:08 pm
- Vessel Info: 1992 Carver 36 aft cabin with Volvo 740b engines. Westerbeke 5kw generator. Bought the boat in Portland Oregon in June, and a friend and I brought it up to Sidney, BC. Great trip!
- Location: Victoria
- Has thanked: 2 times
- Been thanked: 8 times
Re: Most economical cruising speed
1st Carver 1987 32 Aft Cabin
2nd Carver 1989 4207 Aft Cabin
3rd Carver 1995 350 Voyager
4th (current) 1992 36 Carver Aft Cabin
- bud37
- Admiral
- Posts: 4682
- Joined: April 23rd, 2015, 10:22 pm
- Has thanked: 548 times
- Been thanked: 1145 times
Re: Most economical cruising speed
Hopefully those carbs you have are the marine versions.
- Seaplane Steve
- Scurvy Dog
- Posts: 7
- Joined: August 2nd, 2023, 11:40 am
- Vessel Info: 1990 Carver 3608
- Location: St. Paul, MN
- Has thanked: 3 times
- Been thanked: 2 times
Re: Most economical cruising speed
We just did our first fueling. We were not keeping great track of run times for the first part of these tanks, but we are now. We typically cruise around 1500-1900RPM, guesstimate we used about 150gal in 15-18 hours of cruising. Seems to match the flow numbers provided earlier.
It has been fun when we get new people out on the boat to show them what planning looks like. Wide open we hit about 22kts at just over 4,000RPM. Come back to about 2800RPM where I have been told the extra two bbls close and we are down to about 14kts and start to need some bow down trim to keep the ride comfortable.
- kgarguilo
- First Mate
- Posts: 107
- Joined: December 5th, 2022, 2:41 pm
- Vessel Info: 1999 Carver 406
- Location: Sugar Hill, GA.
- Has thanked: 112 times
- Been thanked: 38 times
Re: Most economical cruising speed
- Gallons per hour obtained underway on Diacom software
RPM / GPH per Engine /Total GPH / MPH GPS
1050 - /1.57 /3.14 /7.26
2000 - /4.54 /9.08 /10.00
2776 - /9.46 /18.92 /12.5
3449 - /14.95 /29.90 /20.7
3950 - /21.14 /42.28 /22.5
Lake Lanier GA
1999 Carver 406
- km1125
- Admiral
- Posts: 3347
- Joined: February 28th, 2017, 6:04 pm
- Has thanked: 59 times
- Been thanked: 969 times
Re: Most economical cruising speed
kgarguilo wrote:Source of the post I almost forgot to post the MPH until I just saw your post.Gallons per hour obtained underway on Diacom software
RPM / GPH per Engine /Total GPH / MPH GPS
1050 - /1.57 /3.14 /7.26
2000 - /4.54 /9.08 /10.00
2776 - /9.46 /18.92 /12.5
3449 - /14.95 /29.90 /20.7
3950 - /21.14 /42.28 /22.5
There was probably a spot between 2776 and 3449 RPM where the fuel economy would have popped up a little higher. It doesn't look like you were all the way on plane at 2776, or needed a little tab there to help. The fuel economy is lower than it was at 3449.
Return to “Gas Engines/Transmissions”
Who is online
Users browsing this forum: No registered users and 21 guests