[TR] MPG for TR2, TR3 & TR4

[Randall]

> It stated that the gas milage for both TR2-3's were 34 mpg; 
> while it was 24 mpg for the TR4.  I'm guessing that some of 
> the decrease in mpg were due to the change of SU to Stromberg 
> carbuerators. 

I doubt it.  My first thought is "Where did those numbers come from?" and
particularly, what size gallons were they using?  Recall that the UK at that
time was using Imperial gallons, which are some 20% larger than US gallons.
If the first number was Imperial gallons while the second was US gallons,
that would explain a lot of the difference right there.

In 'Super Profile', Bill Piggott gives 32 mpg for the TR2 and 28 for the
TR3, which makes sense to me as the TR3 had larger carburetors and other
changes for more power.  The fact that your source didn't bother to
differentiate likely indicates that they weren't too careful in other ways
as well.

Then I would guess that the majority of the drop for the TR4 would be due to
it's larger engine, larger body and higher weight.

Worth noting as well that not all TR4s had Stromberg carbs; roughly half of
them still had SU carbs, and later TR4As also had a different model of SU.
Lots of intake, exhaust, camshaft and cylinder head changes going on as
well.

Randall