Quote:
Originally Posted by leddzepp
There might be some truth to it. My fil used to get 35 mpg in his 78 civic.
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Quote:
Originally Posted by GOPAPA
I think that might be due to what we used to use "Real Gas Made From All  Oil,,no corn added.. |
My '64 VW gets 36.25 highway mileage (60-65 mph) running around 16.5:1 air/fuel ratio, and that's with E10 gas/ethanol blend. Engines won't won't run any leaner than that and still be driveable. No way any engine can run lean enough to get 100+ mpg on a normal car from just changing the carb; the spark won't ignite, or burn fast enough if it does ignite. It gets difficult to ignite over 17:1 AFR. Leaner mixes burn slower, you have to add timing advance to even run 16-17:1.