10 MPG. Woohoo!
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Lead Driver
Joined: Apr 2001
Posts: 6,175
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From: Texas
10 MPG. Woohoo!
The FE446 posted 10+ MPG on a trip to the coast yesterday. I know it's nothing to get excited about. But, I really figured it was getting even worse mileage. Well, that was just on the section that I kept it between 60-65mph.
We also verified that the speedo and the odometer were pretty close to accurate. My speedo quits at 80mph. I tried to show my roadtrip buddy. I told him that it just stopped at 80mph. He said, "thats probably as fast as this big old truck goes" . I proceeded to floor it at 80mph. The secondaries opened up and threw us both back in our seats. He then acknowledged taht the speedo had a problem :-) If I could just get it to pull like that all the way down the track...It is impressive for a 4600lb brick
A good day in all. We sucked down a lot of gas. I definitely need another fuel cell. But the truck ran well and made 350-400 miles in a day without any issues. That's pretty impressive, considering I assembled, rebuilt or replaced most of the truck :-)
We also verified that the speedo and the odometer were pretty close to accurate. My speedo quits at 80mph. I tried to show my roadtrip buddy. I told him that it just stopped at 80mph. He said, "thats probably as fast as this big old truck goes" . I proceeded to floor it at 80mph. The secondaries opened up and threw us both back in our seats. He then acknowledged taht the speedo had a problem :-) If I could just get it to pull like that all the way down the track...It is impressive for a 4600lb brick
A good day in all. We sucked down a lot of gas. I definitely need another fuel cell. But the truck ran well and made 350-400 miles in a day without any issues. That's pretty impressive, considering I assembled, rebuilt or replaced most of the truck :-)
Lead Driver
Joined: Jan 2003
Posts: 9,893
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From: Ohio
Good job! Glad it made the whole trip without any mishaps.
Do you have 4.10's??
With the big 16" tires it probably really helped knock them down a bit.
Back in '90 when I put my 428 in my '69 it still had the 3.25 gears out back. It was getting 15+ mpg on the highway. Now with 4.56's, it averages about 6-7 mpg IF you can keep your foot out of it and stay under 3500 rpm on the highway. If I want to drive it to work one day....I have to plan on $15 for fuel minmum
Do you have 4.10's??
With the big 16" tires it probably really helped knock them down a bit.
Back in '90 when I put my 428 in my '69 it still had the 3.25 gears out back. It was getting 15+ mpg on the highway. Now with 4.56's, it averages about 6-7 mpg IF you can keep your foot out of it and stay under 3500 rpm on the highway. If I want to drive it to work one day....I have to plan on $15 for fuel minmum
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Lead Driver
Joined: Apr 2001
Posts: 6,175
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From: Texas
I run 255-70r16s. Not too tall. I think they comapre to stock size tires.
The A/F gauge is still showing slightly rich across the board. So, there might be some mileage improvements there as well. I'm very much considering an OD now. It might take a while to pay for itself in gas. But, just to get the RPMs down to the low 2000s on the highway would sure feel good. And who knows, I might be able to see 12mpg one day :-)
The A/F gauge is still showing slightly rich across the board. So, there might be some mileage improvements there as well. I'm very much considering an OD now. It might take a while to pay for itself in gas. But, just to get the RPMs down to the low 2000s on the highway would sure feel good. And who knows, I might be able to see 12mpg one day :-)
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Lead Driver
Joined: Apr 2001
Posts: 6,175
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From: Texas
Originally Posted by edsf100
You can't beat the feeling of the ride. My 390 takes a bite out of me $$. Gives me a chance to buy lotto tickets at different gas stations a long my trip. 
funny you mentiooned that. I bought lotto tickets in one of the small towns when we stopped for gas..I rarely buy lotto, but for some reasons on roadtrips I feel like I should...I guess it's because the winers are always from some other town :-)
Fleet Mechanic
Joined: Sep 2004
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From: Rowland Heights
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Posting Guru
Joined: Jul 2003
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From: Colville, Washington
gtex--what air/fuel ratio meter do you have? You might have already said, but please how about some info on the install,$ etc.?
10 mpg is very good, I'd say!!
10 mpg is very good, I'd say!!
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Lead Driver
Joined: Apr 2001
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From: Texas
Originally Posted by Putt
gtex--what air/fuel ratio meter do you have? You might have already said, but please how about some info on the install,$ etc.?
10 mpg is very good, I'd say!!
10 mpg is very good, I'd say!!
Summit part number for the gauge: SUM-G2986
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Lead Driver
Joined: Apr 2001
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From: Texas
Up until recently, a successful trip was one that the truck made it to and back from the destination under it's own power. But now, the project has graduated. Now, I consider comfort, mileage, performance etc. in the measurement of success.
Now, one of my biggest problems is wind noise...all the seals are shot :-(
I guess it's a sign of progress
Now, one of my biggest problems is wind noise...all the seals are shot :-(
I guess it's a sign of progress
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Sounds Great Greg!!! 10 miles to a gallon..is very good.. Thats what my mild built 390 gets...
And I have lighten the truck about as much as I can...and still keep it solid..I need it to tow the Stang to and from the Strip? In Feb. I'll take the Hotrod down to a buddies anf get the subframe connector's in and the 8Point Cage!!
And then come home and put the interior back in!! By the way Greg I should have had you fix and update my CPU on the desktop...This A hole has had it for 3 mos. know..and I dont know if there's any end in site??
It ****'s me of cause I cant post ant Pics!! But I will when I get the CPU back!! Sure Do Miss hanging out on the forum!! I have been doing alot of travel up & down the South...Getting parts....And buying Material's for remodeling the house!
I think I average about 5 Hrs. a night sleep!! Arby's oven Mit "Will it ever end" LOL!!
Happy Holidays From the Sanborn Family to one and All On the Forum!!!
Russ & Sandi, Sanette, and New Grandbaby LeAnna....God Bless!!
And I have lighten the truck about as much as I can...and still keep it solid..I need it to tow the Stang to and from the Strip? In Feb. I'll take the Hotrod down to a buddies anf get the subframe connector's in and the 8Point Cage!!
And then come home and put the interior back in!! By the way Greg I should have had you fix and update my CPU on the desktop...This A hole has had it for 3 mos. know..and I dont know if there's any end in site??
It ****'s me of cause I cant post ant Pics!! But I will when I get the CPU back!! Sure Do Miss hanging out on the forum!! I have been doing alot of travel up & down the South...Getting parts....And buying Material's for remodeling the house!
I think I average about 5 Hrs. a night sleep!! Arby's oven Mit "Will it ever end" LOL!!
Happy Holidays From the Sanborn Family to one and All On the Forum!!!
Russ & Sandi, Sanette, and New Grandbaby LeAnna....God Bless!!