Carver 4207 with 454's fuel consumption
- BoatinBob
- Scurvy Dog

- Posts: 3
- Joined: August 4th, 2020, 5:49 pm
- Vessel Info: Looking at 4207's
- Location: Lower Lake Huron
- Has thanked: 1 time
- Been thanked: 1 time
Carver 4207 with 454's fuel consumption
Would anyone have fuel consumption specs for a 4207? i.e. mpg at different rpm's and speeds?
Thanks in advance, I've searched everywhere with little luck, so I thought I would ask!
Thank you!
Thanks in advance, I've searched everywhere with little luck, so I thought I would ask!
Thank you!
- waybomb
- CYO Moderator

- Posts: 2745
- Joined: February 5th, 2013, 9:24 pm
- Vessel Info: 1995 Boston Whaler Rage15
1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glasspar / 1967 Johnson Electromatic 85 - Location: Saint Joseph,Mi
- Has thanked: 69 times
- Been thanked: 492 times
Re: Carver 4207 with 454's fuel consumption
I don't remember what our 4207 burned, but let me tell you that you should buy a trim tab indicator and a very good fuel flow meter. You'd be surprised how a couple degrees of tab and sight changes in throttle can increase your fuel efficiency..
I was very surprised.
I was very surprised.
Thanks
Fred
1969 Glaspar Avalon /1967 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
Fred
1969 Glaspar Avalon /1967 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
- Johnnykey
- Scurvy Dog

- Posts: 42
- Joined: July 5th, 2020, 10:22 am
- Vessel Info: 98' Carver 405
- Location: LaCrosse WI
- Has thanked: 27 times
- Been thanked: 19 times
Re: Carver 4207 with 454's fuel consumption
https://www.boat-fuel-economy.com/mercu ... us-gallons
Very accurate. Your MPG will depend on your speed for given RPM. I'm guessing that your 4207 has quadrajets. You can tune a quadrajet to get better GPH than an MPI motor. But You wont have the advantage of knock sensors.
Very accurate. Your MPG will depend on your speed for given RPM. I'm guessing that your 4207 has quadrajets. You can tune a quadrajet to get better GPH than an MPI motor. But You wont have the advantage of knock sensors.
- tomschauer
- Admiral

- Posts: 2323
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
- Has thanked: 326 times
- Been thanked: 602 times
Re: Carver 4207 with 454's fuel consumption
Just to clarify, you wont get miles to gallon with gas engines in that boat. Its gallons to the mile 

- RGrew176
- Admiral

- Posts: 6652
- Joined: August 17th, 2015, 4:07 am
- Vessel Info: 2023 SunTracker Party Barge 22 DLX
- Location: Southgate, MI.
- Has thanked: 72 times
- Been thanked: 470 times
Re: Carver 4207 with 454's fuel consumption
Or as I get on my 81 3007 an average of .86 miles per gallon.
Rick Grew
2025 Godfrey Xperience 2286 SFLX
2004 Past Commodore
West River Yacht & Cruising Club
2025 Godfrey Xperience 2286 SFLX
2004 Past Commodore
West River Yacht & Cruising Club
- tomschauer
- Admiral

- Posts: 2323
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
- Has thanked: 326 times
- Been thanked: 602 times
- buster53
- Admiral

- Posts: 1170
- Joined: May 12th, 2017, 10:41 am
- Vessel Info: 2001, Carver 356
- Location: Gwynn’s Island, VA
- Has thanked: 10 times
- Been thanked: 285 times
Re: Carver 4207 with 454's fuel consumption
I used to have a 3807 with Merc 454's. What a gas hog. I can't imagine a 4207 with gas engines.
At plane, we got less than 1/2 mpg. That's why we almost always ran at hull speed, about 7.5 knots. At that speed, we got about a mile per gallon. Big difference. Unless you want a permanent spot at the fuel dock, run hull speed. Your wallet will thank you.
At plane, we got less than 1/2 mpg. That's why we almost always ran at hull speed, about 7.5 knots. At that speed, we got about a mile per gallon. Big difference. Unless you want a permanent spot at the fuel dock, run hull speed. Your wallet will thank you.
- tomschauer
- Admiral

- Posts: 2323
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
- Has thanked: 326 times
- Been thanked: 602 times
Re: Carver 4207 with 454's fuel consumption
Yep, that's a lot of boat for 7.4's. They will push it ok, but don't be in a hurry.
- BoatinBob
- Scurvy Dog

- Posts: 3
- Joined: August 4th, 2020, 5:49 pm
- Vessel Info: Looking at 4207's
- Location: Lower Lake Huron
- Has thanked: 1 time
- Been thanked: 1 time
Re: Carver 4207 with 454's fuel consumption
Thanks for all the input, cruising at hull speed sounds like the way to go, and only open it up when the beer cooler runs empty lol.
Just trying to get a rough idea, and I think I got it!!
I appreciate all the input!
Just trying to get a rough idea, and I think I got it!!
I appreciate all the input!
- kamakazerc
- Scurvy Dog

- Posts: 24
- Joined: December 7th, 2017, 7:14 am
- Vessel Info: proud new owners of a 1988 3607 aft cabin,as of august 2018, and still have at this time our 1980 mariner 2896
- Location: au gres mi
- Has thanked: 3 times
- Been thanked: 8 times
Re: Carver 4207 with 454's fuel consumption
Hi, I have an 88 , 3607. I haven't bought these yet, but there on my list to perchase soon. I had fuel flow meters on my last boat ( Carver 2897) and loved them.
Saved me a lot of fuel!
These are even better with the app supplied.
https://www.interactio.co/?gclid=Cj0KCQ ... TfEALw_wcB
And , no, I'm not affiliated with interactio in any way.
Just did my research, and want them on my boat soon!
Regards.... Mike from , Au Gres MI
Saved me a lot of fuel!
These are even better with the app supplied.
https://www.interactio.co/?gclid=Cj0KCQ ... TfEALw_wcB
And , no, I'm not affiliated with interactio in any way.
Just did my research, and want them on my boat soon!
Regards.... Mike from , Au Gres MI
