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Old 09-06-2019, 01:33 PM   #22 (permalink)
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sbestca's Avatar
Join Date: Sep 2012
Location: Nova Scotia
Posts: 43

Big Blue Caravan - '12 Dodge Grand Caravan
90 day: 21.72 mpg (US)
Thanks: 6
Thanked 8 Times in 7 Posts
40 years ago I started at a trade school 20 miles from home. I needed to save money where ever I could. I was driving a 1969 Half Ton Ford with the 302 and 3 on the tree Manual, 3.25 gears.

I was getting 16mpg(imp) out of it. Like yours, the bed was rusty. I ripped it off and built a spruce flatbed. I installed long tube headers and high flow mufflers and a taller paper element in the air cleaner. I pulled the heads and planed them (I was studying machinist) for 9.5:1 compression. Recurved the ignition and used my daily trips to experiment with jetting on the stock 2bbl.

I ran a 2 blade fan with large pulley clutch drive and a shroud to reduce cooling losses. No problems with overheating here, cool weather and country driving.

Also changed my driving style, didn't know about pulse and glide, used a coast down hills and barely make it up style. Keeping in high gear with speed down was a big savings too. I also ran tall but skinny radial tires instead of the fat bias meats so popular back then. End result was 24mpg(imp) over the week consistently.

For winter I had to go back to smaller filter and supply intake heat. I kept it year 'round after that.

Last edited by sbestca; 09-06-2019 at 01:38 PM..
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