For anyone that remembers I'm a tech official so get to see a lot of racings
cars and stuff. I was at Donnington yesterday for a race meeting that
included classic tourings cars - some of whom are racing today.
It was a good meeting and the Classic Touring Cars had a big grid including a
Mazda RX7 that went very well beating a lot of much bigger engined cars to
come second (inc a V12 Jag XJS).
I did tech on a lot of BMWs which were fairly stock, some Elises, Exiges etc.
However, the highlight was a Morris Minor - only the 2nd one I've
scrutineered (along with 2 A35s, 2 A40s a nice BMC Classic).
It was the same car from 2 weeks ago from Silverstone and I was pleased that
my guess that it ran a 948cc engine was correct. The owner knew almost
nothing about engines, cars or motorsport tuning! The carb was a Weber 48IDA
is really too big for the engine though clearly it had been set up correctly
as it had 36mm main venturi. Interestingly (for me at least) I never knew you
could choke down that small on an IDA. On a 48 DCOE you can only choke down
to 40mm and the 48 DCOE only chokes down to 42. The carb was a derrington
The website www.classictouringcars.com has some neat video clips including
one of the BMW races - same cars as I saw.
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