Re: 440 MPG?
[Re: serano]
#1401948
03/13/13 09:33 PM
03/13/13 09:33 PM
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Joined: Jan 2003
Posts: 12,043 State of Confusion
hp383
Just a normal tag again
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Just a normal tag again
Joined: Jan 2003
Posts: 12,043
State of Confusion
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My 93 Ramcharger with the rebuilt mild 440 was getting 8-10 mpg on average.
This was with a 727, 34" tires, 4.10 gears. 95% highway use. Never drove it over 60mph.
It now waiting for the remainder of a 518 OD swap.
Join the Penguin Liberation Front!! Stop the Hippo Occupation!
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Re: 440 MPG?
[Re: mopartruckguy]
#1401950
03/14/13 09:30 AM
03/14/13 09:30 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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all though not a 4x4,my 88-440/727/3.91sg with 29x15x15 M/Ts got a flat 10 mpg. swaped in 3.23 with a new q-jet/performer RPM intake and picked it up to 13 mpg. hoping a 2.76 gear will net me a couple more for 15-16 mpg. then I could drive to the next town over for more gas. I gave up on mpg in a 4x4 muself.
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Re: 440 MPG?
[Re: dOc !]
#1401952
03/14/13 02:16 PM
03/14/13 02:16 PM
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Joined: Jan 2003
Posts: 5,949 British Columbia
chrisf
master
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master
Joined: Jan 2003
Posts: 5,949
British Columbia
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Quote:
My "truck" (motorhome) .... was getting 12 or so ....with a TQ and Streetmaster intake(way better UPgrade from the OEM garbage) .... but later on - with a new-tech cam, head work, exh work, going from a 4.56 to a 3.73 gear and more compression(flat top pistons) it will get 16 ....and I have been challenged on that .... two people have bet me it can not be done .... so I have two bets - a total of 3500$ !
doc can you give us some more info. i'd like to hear how you get that big whale to nail that mileage down.
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Re: 440 MPG?
[Re: chrisf]
#1401953
03/14/13 08:41 PM
03/14/13 08:41 PM
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Joined: Jul 2008
Posts: 30,474 Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,474
Florida STAYcation
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NO real trick there cf ... just keeping the MPH around 60(the MH is a pretty AERO piece) ..... and putting on a better fuel delivery combo .... that being a TQ and a StreetMaster intake. THEN playing with the metering rods Now my 16 mpg mark is NOT going to be an average of say a trip from MI to FL ... it will be with a measured 1 gallon container ...and will be run on-the-flat. HONESTLY .... I think that it will be closer to 18 ...with the new cam, compression, SP2P intake and the gear change.
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Re: 440 MPG?
[Re: dOc !]
#1401955
03/16/13 01:32 AM
03/16/13 01:32 AM
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Joined: Feb 2011
Posts: 440 Marysville, WA
77ProStreet
mopar
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mopar
Joined: Feb 2011
Posts: 440
Marysville, WA
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Quote:
just keeping the MPH around 60(the MH is a pretty AERO piece)
What kind of motorhome are talking about? The 24' over cab style or the raised roof extended van style? BIG DIFFERENCE in weight! I do believe you can get 18-20 out of a 440, I did it back in the 90's with my 79. For 2 weeks I drove it to work and made sure I stayed away from the floorboards with the gas pedal. I did average 20 MPG! I just don't know about an over the cab style MH!? But I'm all ears.
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Re: 440 MPG?
[Re: 500ciDuster]
#2912984
04/21/21 03:47 PM
04/21/21 03:47 PM
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Joined: Jul 2008
Posts: 30,474 Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,474
Florida STAYcation
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What are the driving conditions? 8 mpg ? ... only a from the least coast of Florida could continue dealing with those conditions!
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