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What have you done today with your Austin Seven
I have always kept a note of how my Austins perform on long distance runs.  Most have been in the 31 saloon which has a 4.9 axle and a mildly tuned engine that has always run on a 1" or latterly 1 1/8"  SU with either AN or EB needle (ie Morris 1000 0r Mini 850)
My fuel consumption figures for the saloon are as follows:
Pennine Run 36.9 (first major run, carb not set up correctly), 43.9, 41.2, 44.6
Welsh Marches Trip 43.5
Lakeland/Cumbria Run 43.9, 41.4, 41.6
Borders/Scottish Trips 41.0, 46.6, 38.1, 36.6, 38.4, 39.9, 42.6, 39.8, 39.4,
Isle of Man Trips 45.5, 38.0, 43.3, 36.9
Coast to Coast 40.3

Looking at my notes, the single most important factor regarding fuel consumption appears to be how windy it is.
I always run on super unleaded.
The Ulster, with a similar spec engine to the saloon but with a 5.25 axle and somewhat lighter, returned 46.7mpg on a Cumbria Run including the return journey from Grange to Boltby in 2 hours.

I think this shows how a little bit of extra bhp pays dividends, especially with a 3 speed box and 4.9 axle.
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Messages In This Thread
RE: What have you done today with your Austin Seven - by Malcolm Parker - 11-07-2019, 01:09 PM
Peak District well dressing - by Tony Griffiths - 31-08-2019, 05:00 PM
Genuine old and imitation new - by Tony Griffiths - 01-07-2021, 03:37 PM
Crankcase machining - by Chris Garner - 29-08-2023, 08:59 PM
Massed ballon landing and A7 - by Tony Griffiths - 03-09-2023, 08:27 PM
Popping and not pulling well? - by Biddlecombe - 10-04-2019, 03:37 PM

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