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Old 03-07-2012, 06:29 AM   #6 (permalink)
yostumpy
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Join Date: Feb 2012
Location: gravesend, uk
Posts: 47

wallace - '98 landrover 300tdi defender 110 hard top
90 day: 24.56 mpg (US)
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Quote:
Originally Posted by mort View Post
Hi yostumpy,
A vacuum gauge probably won't help you, especially in a VW van.
Imagine that every driver can be described on a spectrum from aggressive to economical. Aggressive: jack rabbit starts, goes as fast as road conditions allow, short stops, no coasting. Economical: follows the advice given here.
It turns out that the average driver is aggressive most of the time. What a vacuum gauge does is shows those aggresive-ish drivers how to drive more economically. Moderate accelerations, low power cruising, coasting between stops.
But if you are reading ecomodder.com you are likely beyond using a vacuum gauge. You will know about bsfc maps, pulse and glide and more. Things that a vacuum gauge probably is more misleading than helpful.
The VW is under powered so you'd be frustrated trying to not get rear-ended while keeping the gauge in the economy range.
-mort
Thanks Mort! thats kinda what I was thinking, but being a novice wasn't sure. The bus ,even the 2000cc, is underpowered, but when tuned right has a very nice and definate 'sweet spot' and because of its mahoosive flywheel, once rolling you can feather off the throttle quite a lot for no loss of momentum. It also, from memory, rolls quite freely, compared the the landrover anyway,so coasting should be good, can't wait to try the eco thing with 'Pamplemousse', got a few trips planned for the better weather.
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