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Y-block Gas Mileage

Posted By 55blacktie 4 Years Ago
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55blacktie
Posted 4 Years Ago
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There is a recent post on one of the Thunderbird forums, regarding the gas mileage of 55-57 Thunderbirds with 292-312 Y-block engines. Some owners reported 7-10 mpg, others getting 9-12, another getting between 13-14, and another claimed 20 mpg on the highway, in overdrive. Having inherited my 55 T-bird, I drove it just a couple of times before beginning restoration, so I have no idea what kind of gas mileage I should expect. 7-13 mpg is nothing to brag about. Are these numbers typical? They are awfully low for a small v8 in a 3,000-lb. car. Is there an explanation, other than the given examples are parade cars that are seldom driven on the highway? 
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Just Brian
Posted 4 Years Ago
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1954 Ranchwagon, 292 600cfm 4 barrel, don't know about cam oversize etc, 4 speed, don't know diff ratio, 15" tires doing around 2800rpm at 65-70 miles per smile. Wouldn't know and don't care what mpg I'm getting. It's the smiles per mile that matter. I run 95 octane which is around $2.36ltr or $8.50 US gallon here in New Zealand. That's why I run smiles per mile.
Brian
Florida_Phil
Posted 4 Years Ago
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I'm 74.  The cheapest gas I can remember was 18 cents a gallon during a gas war. When we were in high school, regular gas averaged about a quarter a gallon.  I have no idea what my TBird's gas mileage is.  When I need gas, I always put the same $20 worth in the tank.  When someone asks me the price of gas?  I tell them it's $20.  Rolleyes


http://forums.y-blocksforever.com/uploads/images/82ad85c1-6def-4eb4-a085-3dd2.jpg

57RancheroJim
Posted 4 Years Ago
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I had to laugh at the people on the east coast that were crying about gas reaching $3 a gallon when the pipe line shut down. Come to California and we will give you something to really cry about. Filled the Ranchero the other day and it wasn't completely empty and still cost $65.
DANIEL TINDER
Posted 4 Years Ago
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57RancheroJim (6/5/2021)
I had to laugh at the people on the east coast that were crying about gas reaching $3 a gallon when the pipe line shut down. Come to California and we will give you something to really cry about. Filled the Ranchero the other day and it wasn't completely empty and still cost $65.


Yes, rather galling when filling the tank of my ‘grocery-getter’ SUV costs more than I paid for my first car (‘53 Merc HT)!

6 VOLTS/POS. GRD. NW INDIANA
pintoplumber
Posted 4 Years Ago
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Back when we were racing in Ohio at National Trail, and gas was around $4.00 a gallon, I filled up to come home. The pump shut off at $75.00. I put the card in for another $75.00. It was almost full so I didn’t try again. Gotta love those old suburbans with the 42 gallon tank.

http://forums.y-blocksforever.com/uploads/images/3047f5ac-add1-4e79-a3ed-14ea.jpg  Dennis in Lititz PA

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Forum Post Y-block Gas Mileage By 55blacktie ( 4 Years Ago )
Forum Post There are lies, damned lies, and fuel mileage claims, er Statistics.... By Tedster ( 4 Years Ago )
Forum Post When I first got my ‘55, mileage was over 20mpg on the highway (in... By DANIEL TINDER ( 4 Years Ago )
Forum Post What has really surprised me, with any carbureted engine if it isn't... By Tedster ( 4 Years Ago )
Forum Post I don't think my dad drove my 55 far enough/often enough to calculate... By 55blacktie ( 4 Years Ago )
Forum Post [quote][b]55blacktie (6/1/2021)[/b][hr] Upon learning that the 57... By Tedster ( 4 Years Ago )
Forum Post For what it's worth, mine averaged a little over 16 on the highway the... By charliemccraney ( 4 Years Ago )
Forum Post I'll have an O2 bung installed in the Sanderson reducer during... By 55blacktie ( 4 Years Ago )
Forum Post Several years ago I drove my '57 (312 and overdrive) between LA and... By Joe 5bird7 ( 4 Years Ago )
Forum Post 55Blacktie. A Thunderbird might be different than the full size car... By DryLakesRacer ( 4 Years Ago )
Forum Post The last trip I made coast to coast in my 56 Bird, I got an average of... By paul2748 ( 4 Years Ago )
Forum Post At one time I was regularly checking mileage on mine. 3.1 rear, G78x14... By ian57tbird ( 4 Years Ago )
Forum Post Drylakesracer, there's a lesson to be learned, here: Keep moving!... By 55blacktie ( 4 Years Ago )
Forum Post When my van broke down I drove my 56 Vicky, 325 cubic inch, 4-71 blown... By MoonShadow ( 4 Years Ago )
Forum Post Thanks to all. I will recommend that the members of the T-bird forum... By 55blacktie ( 4 Years Ago )
Forum Post The issues with the "Loadomatic", pre 1957 distributors, which don't... By PF Arcand ( 4 Years Ago )
Forum Post [quote][b]PF Arcand (6/2/2021)[/b][hr] Nor will an original stock... By Tedster ( 4 Years Ago )
Forum Post My two cents worth. Like most engines, the Y likes an... By Ted ( 4 Years Ago )
Forum Post I have a "57 T-Bird " C " car with a 292 engine, 2 bbl. carb with a 3... By tbirddragracer ( 4 Years Ago )
Forum Post My speedometer was about 15% fast, which seems to be common, original... By 55blacktie ( 4 Years Ago )
Forum Post I have a Dodge 3500 maxi van. One of several I have owned over the... By MoonShadow ( 4 Years Ago )
Forum Post Let us not forget gas was 20 cents a gallon back than and most people... By Town Vicky ( 4 Years Ago )
Forum Post And the average working man wage was prolly around 10 to 15... By Dobie ( 4 Years Ago )
Forum Post More like 5-7 grand. 10-15 would have been extraordinary. I'm 66, and... By 55blacktie ( 4 Years Ago )
Forum Post [quote]Let us not forget gas was 20 cents a gallon back then[/quote]... By KULTULZ ( 4 Years Ago )
Forum Post To get better fuel mileage, there are several common sense things to... By Joe-JDC ( 4 Years Ago )
Forum Post My 57bird has an .80 over 312 with the Isky 300 series cam and an E... By famdoc3 ( 4 Years Ago )
Forum Post Isn't that cam too big for 2.73 gears? What is its RPM range? I chose... By 55blacktie ( 4 Years Ago )
Forum Post While we’re on the subject of gas, just filling my 55’s tank is a crap... By 312YBlock ( 4 Years Ago )
Forum Post [quote][b]312YBlock (6/4/2021)[/b][hr] While we’re on the subject... By DANIEL TINDER ( 4 Years Ago )
Forum Post I've found that most of the time if I stick the nozzle in the filler... By Dobie ( 4 Years Ago )
Forum Post I will no longer set the pump handle or leave any vehicle unattended... By 55blacktie ( 4 Years Ago )
Forum Post 1954 Ranchwagon, 292 600cfm 4 barrel, don't know about cam oversize... By Just Brian ( 4 Years Ago )
Forum Post I'm 74. The cheapest gas I can remember was 18 cents a gallon during... By Florida_Phil ( 4 Years Ago )
Forum Post I had to laugh at the people on the east coast that were crying about... By 57RancheroJim ( 4 Years Ago )
Forum Post [quote][b]57RancheroJim (6/5/2021)[/b][hr] I had to laugh at the... By DANIEL TINDER ( 4 Years Ago )
Forum Post Back when we were racing in Ohio at National Trail, and gas was around... By pintoplumber ( 4 Years Ago )
Forum Post Our 56 gets 11 with all in town stop to stop driving, basic 292 with... By DryLakesRacer ( 4 Years Ago )


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