tow rig fuel economy/ EFI - Pirate4x4.Com : 4x4 and Off-Road Forum

fivetenben · 08-28-2002, 03:53 PM

My dad was just given a 82 3/4 ford that needs a motor. The old guy he got it from says the thing gets 10mpg whether its towing or not. How can we get better fuel econmy out of this thing? Id definatly like to convert to EFI somehow. Either buying a low mile factory efi moter out of a wreck, or rebuilding the old motor and adding aftermarket efi... Thoughts?

thanks

tail_lite · 08-28-2002, 08:38 PM

actually ya' can't.... the technology just wasn't there for 1982.
To rectify that problem will just put you in the poor house.
If you buy a new truck, you will get the better milage but then you have payments.... so just bite the bullet and replace the old fords motor and whatnot. You will get at least 5 mpg less milage (probably) than a new truck, but you have alot of $$$ left for gas..... my .02 worth

dog walker · 08-28-2002, 10:44 PM

Does that truck have a 460? If so, 10mpg is prety good for that guzzler! Even if it were Fuel injected it would'nt get much better.

I have never known anyone that has a 454 or a 460 to get better than 12mpg, and even then I think the actual milage is more like 10mpg.

My 97 Chevy 1 ton 4x4 dually gets maybe 12mpg unloaded without the AC on, but 10mpg is the norm. My 87 Chevy dually 2wd got the same. And everyone I know that has older carburated big blocks gets close to the same.

I know a few people who have older 460's that claim to only get like 7mpg!

RE:Todd · 08-29-2002, 07:53 AM

10 ain't bad. I've got an 97 CC Dually Chevy with the 454. 10-12 MPG flat towing my runner.

GRMhick · 08-29-2002, 08:26 AM

I still dont see what EFI does for gas milage.. my old truck with a 360 got between 9-13.. my 96 with a 318 gets between 10-14. Not a big difference, and if i tuned up the 360, i bet i could have gotten 15 out of it easily, but never cared enough. Oh, and the 318 truck has an overdrive too

Norm · 08-29-2002, 08:29 AM

My 460 EFI got 10-12 empty, 6 loaded. I don't think thats far from the carbed models. The 351W will only get another 1MPG better or so. Swap in a 302 or 300 6cyl if you want milage.

08-28-2002, 03:53 PM	#1 (permalink)
fivetenben Registered User Join Date: Sep 2000 Member # 1710 Location: paradise, ca Posts: 473	tow rig fuel economy/ EFI My dad was just given a 82 3/4 ford that needs a motor. The old guy he got it from says the thing gets 10mpg whether its towing or not. How can we get better fuel econmy out of this thing? Id definatly like to convert to EFI somehow. Either buying a low mile factory efi moter out of a wreck, or rebuilding the old motor and adding aftermarket efi... Thoughts? thanks

08-28-2002, 08:38 PM	#2 (permalink)
tail_lite Registered User Join Date: Jan 2002 Member # 9404 Location: Ridgecrest,CA. Posts: 3,768	actually ya' can't.... the technology just wasn't there for 1982. To rectify that problem will just put you in the poor house. If you buy a new truck, you will get the better milage but then you have payments.... so just bite the bullet and replace the old fords motor and whatnot. You will get at least 5 mpg less milage (probably) than a new truck, but you have alot of $$$ left for gas..... my .02 worth __________________ My new 4x4 ----- Honda Rincon 650 fourtrax

08-28-2002, 10:44 PM	#3 (permalink)
dog walker Discount! Join Date: Feb 2000 Member # 156 Location: Orangevale, CA Posts: 6,788	Does that truck have a 460? If so, 10mpg is prety good for that guzzler! Even if it were Fuel injected it would'nt get much better. I have never known anyone that has a 454 or a 460 to get better than 12mpg, and even then I think the actual milage is more like 10mpg. My 97 Chevy 1 ton 4x4 dually gets maybe 12mpg unloaded without the AC on, but 10mpg is the norm. My 87 Chevy dually 2wd got the same. And everyone I know that has older carburated big blocks gets close to the same. I know a few people who have older 460's that claim to only get like 7mpg! __________________ Jeff Fretwell 72 FJ40 67 FJ45 83 Toyota 4x4 LB

08-29-2002, 07:53 AM	#4 (permalink)
RE:Todd Registered User Join Date: Mar 2000 Member # 422 Location: Roswell NM Posts: 6,374	10 ain't bad. I've got an 97 CC Dually Chevy with the 454. 10-12 MPG flat towing my runner. __________________ Todd Steele TINBENDERS Formula Toy #006; Thanks to Deaver Spring, High Angle Driveline, Longfields, Rock Buggy Supply, PRP Seats, Marlin Crawler, Coast Motor Supply and RockStomper. [url=http://www.tinbenders.org]TinBenders.org[/url]

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-29-2002, 08:26 AM	#5 (permalink)
GRMhick Pirate4x4 Addict! Join Date: Feb 2000 Member # 87 Location: I live in hotels tear out the walls I have accountants pay for it all Posts: 7,203	I still dont see what EFI does for gas milage.. my old truck with a 360 got between 9-13.. my 96 with a 318 gets between 10-14. Not a big difference, and if i tuned up the 360, i bet i could have gotten 15 out of it easily, but never cared enough. Oh, and the 318 truck has an overdrive too

08-29-2002, 08:29 AM	#6 (permalink)
Norm Poor White Trash Join Date: Apr 2001 Member # 4387 Location: Kalispell, MT Posts: 1,875	My 460 EFI got 10-12 empty, 6 loaded. I don't think thats far from the carbed models. The 351W will only get another 1MPG better or so. Swap in a 302 or 300 6cyl if you want milage.