Quote:
Originally Posted by slowprop
At age 20 I had a Triumph GT6. That had a 2L straight 6 engine. I remember it was quite good on fuel considering the size of the engine and the heavy foot of a 20 year old. Happy days. I couldn't see me climbing in and out of a GT6 now.
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Big engine, light car, engine doesn't have to work too hard so economy is generally better.
Smaller engine generally has to work harder so uses as much, if not more fuel, for similar performance levels. Maybe the carbs needed balancing on the TC Sptifire powered Herald - i remember one of my V* SD1s dropped to about 18mpg because the carbs neeeded balancing.
Balanced them and 28mpg was restored - even when i gave it a severe thrashing and covered 35 miles in 23 minutes - do the maths!
