After reading a recent article on a Corvette it caused me to do some
thinking. How is it that a 3500lb.(approx.) Corvette with 400 HP can get 32
mpg on
the highway and a 2500 lb. Tiger with 164 HP can only manage 22mpg?
I realize that the Vet will have a fuel management system which should be
much better than a carb. and the cleaner front lines of the Vet will be much
better for drag than a Tiger, but.......
When a few people have switched a fairly modern Ford 5.0 (fuel injected)
engine into their Tiger, I've never heard them brag of 30 mpg.
And sure, the Tiger is like a brick wall as far as design goes, but it's not
like a van or a big truck. The aerodynamics might be terrible, but this is
still a pretty small car and the frontal area is not huge.
Also, I think the Vet is 6 speed with double overdrive. I imagine that at
road speed this thing isn't much above idle...maybe 1,400 rpm? By today's
standards our Tiger is really winding at 3,000 rpm at 70mph.
So, what is the Vet's secret? Is it just a combination of many small things
adding up to create efficiency?
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