Quote:
Originally Posted by jkv357
I wouldn't think that would work to get 477 MPG. For that, coasting had to be a major factor IMO.
In addition to a small, aero shape, Matsu had a neutral available from top gear so he could coast at cruising speeds with as little resistance as possible. Because accelerating is the opposite of coasting, I would expect he would reduce the time spent accelerating to an absolute minimum by running at wide-open throttle during acceleration then using the momentum, aero shape, and trans in neutral to coast as long as possible - maximum P&G.
It does seem counter-intuitive to accelerate at WOT during a mileage competition, but because the engine is so small, and the pumping losses are minimal at WOT, it may be the most efficient way to use fuel now in order to be able to coast more later.
Here's an interview with Matsu, but it doesn't give any specific info about the techniques he used - 1985 Matsu talks
Just a theory - what do you think?
Jay |
Yeah, I had read that interview earlier. It's really a shame they crushed the spud.
All I can say is I hope you're right. It's pulse and glide at the highest level.
I guess the initial acceleration from a complete stop had to only be done at the beginning and he could take his sweet time if he wanted, but over 200 miles (if I remember correctly) it's a drop in the bucket.
So while he could give himself really slow initial acceleration, it wouldn't be necessary. You could still have small lower gears to merge onto that highway and enjoy the fuel efficiency once you've got going.
No neutral is the biggest issue I have with my scooter, but you can't find manual scooters in the US. They still make 'em like that new in Asia (where neutral is at the bottom; below first gear)
Having neutral on the top is kind of the cherry on top, but as long as you can pull in the clutch, you're good; wears out your hand quicker though.