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Old 02-02-2008, 10:14 PM   #15
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1973 31' Sovereign
Bertram , Texas
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I thought the MH would do better than a large trailer truck combo, but I get 12 with my old rig. True, it is diesel so that is more like ten when ya factor in differece between gas/diesel, but people still stare
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Old 02-03-2008, 04:24 PM   #16
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1984 28' Funeral Coach
Belleview , Florida
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Interesting ..... I could handle doubling my mpg. One of the testimonials was ...
“My mechanic installed the HAFC Kit on my 1998 Airstream Motor Home and it went from 6.8 mpg highway to 22 mpg. My friend was with me on the test drive, and we couldn’t believe our eyes.
Roger M., Houston, TX

Roger, are you out there???

We'll see.
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Old 02-04-2008, 05:11 PM   #17
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1986 34.5' Airstream 345
choctaw , Oklahoma
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I've had my 'Silver Bullet' for about 55,000 miles now. In '96 it got 4mpg. Has the hole Banks sit up and got 4mpg. Has 4 speed Allison 545 trany, got 4mpg. All the old thing could do, in 1st gear, to climb a mountain, but got 4mpg.
Put EFI on it and I get 5.9 to 6.9mpg. Run the dash air, same thing. Go 75 mph, same thing. Go 55mph, something. Pull the car, same thing. Would love to get 15mpg, but someone would have to fill it up three or four times when I wasn't looking for that to happen.
I've had three gas motor home and they all got from 3.5(that was a 413cid dodge) to 6.9mpg.
If I could get the wife to ride in the toad and keep it floored I'd still get 5.9-6.9mpg.
Before I put the EFI on I tried to find a way to remotely run the toad engine, but that's above my pay bracket.
Maybe GM will offer a package deal someday and we can slide a new Duramax/Allison under our doghouses and just plug it in
mel
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Old 02-06-2008, 06:43 AM   #18
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The quote from the folks selling the snake oil....er HFAC Kit came in at just over $1k and I think I'll wait until someone else trys it first.
They guarantee double your milage or your money back.
They don't tell you what the supplimental additives cost though.
I smell snake oil....
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Old 02-06-2008, 06:21 PM   #19
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1986 34.5' Airstream 345
choctaw , Oklahoma
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I installed the 'Turbo City' TBI setup in '04 and all total it cost $1721.42. I did it all myself.
With the toad in tow, I'm right a 19,000 pounds, so 5.9-6.9 is good for a 454. If I had a new Commins and the right gears I would believe 12-15mpg. But a 454? Getting 22? That's snake oil.
Mel
note: I am a produce of a government school, so I may know less then I think.
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Old 02-12-2008, 07:53 PM   #20
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1989 34.5' Airstream 345
Silverton , Colorado
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We have an '89 354, and get right at 5.5, towing a Geo...doesn't seem to make a difference if the tanks are full or dumped...have a carbed 454 and a gear-vendors overdrive that I'm still learning to use...we use the generator a whole lot less since we added 2 kyocera 130 solar panels...doesn't help the mpg though....mike
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