> > VW vent to fairly long extremes in > > the old engines to route exhaust gasses up to warm up the intake manifolds. > > The warm manifolds really hurt performance and gas mileage, but without Actually it will improve gas mileage. It does affect perfomance, but warmer air temps will improve gas mileage. That's why auto manufacturers always have high-temp thermostats in their cars, even the performance ones. They get a higher MPG rating that way. An old trick to get more out of your car is to put in a low temp thermostat (usually 160 degrees). This is impossible on an air-cooled vehicle, but you water guys out ther might be able to try it. Craig ------------------------------------------------------------------ Craig Standley cstand@u.washington.edu University of Washington http://weber.u.washington.edu/~cstand Physics ------------------------------------------------------------------ |
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