'37 five window coupe mpg


Old 03-18-11, 10:54 PM
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'37 five window coupe mpg

I have a 1937 Ford coupe running a sbc 350 and TH350 trans. The rear end gears are 3.08 and the tire size is 235-70R-15. The coupe weighs approx 2800 lbs. Runs smooth but has poor gas mileage of 13-14 mpg. The carb is edelbrock 500cfm with mechanical choke. Motor and trans have 13,000 + miles on them. Shouldn't I be getting closer to 20 mpg?
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Old 03-19-11, 02:48 AM
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Welcome to the forums! Believe me, it isn't the engine nor the tranny. It is called aerodynamics and overall weight. Gee. You are pushing a 2500# "box" through the air. I don't think the car was designed with MPG in mind.
Old 03-19-11, 04:00 AM
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Ya, that's part of the price of driving a cool car.

My 1951 Ford F1 has a 90 hp flathead V8. It's sitting in the barn now patiently awaiting needed repairs but if I remember correctly, it got about 16-17 mpg in the city and 14-15 mpg on the highway. Those old trucks just weren't built to run over 50 mph much.
Old 03-19-11, 09:46 AM
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Thanks, Mark. My 1941 pickup has the late flathead in it and I get about what you say yours gets in town and on the highway. Great old trucks!
Old 03-19-11, 09:53 AM
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Thanks, Chandler. I was afraid that might be the case, but I hear guys talking about getting much better mpg with muscle cars equipped the same as mine. They are more aerodynamic, but still longer, wider, and heavier, so I will keep tinkering to see what I can do to improve matters if possible. I bought the coupe last summer with the idea to drive the wheels off of it this summer, but the price of gas may limit where I go unless the mpg can be improved or the price of gas comes down. Thanks again.
Old 03-19-11, 09:59 AM
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My cousin had a car that got good milage but the body was shot so he but the entire driveline in a pickup. The milage dropped about a third. When you could buy gas at $1.00 for 5 gal it wasnt such a problem.

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