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RAV4 - a girly 'truck'?
On Nov 21, 10:31*pm, Tim wrote:
On Nov 21, 7:00*pm, Wayne.B wrote: On Mon, 21 Nov 2011 19:10:55 -0500, John H wrote: It is a wonder how a 6.6 liter diesel can get better mileage than a 5.6 liter gasser, but they do. === There's no magic to it, just the laws of physics. * Diesel fuel has more BTUs per gallon and diesel engines operate at a much higher compression ratio. * In addition a diesel engine does not operate against the constriction of a throttle plate. * The rule of thumb is that a diesel engine will burn about 1 gallon per hour for every 17 or 18 horsepower. * A gas engine burns 1 gallon per hour for every 10 hp.. Then when you start turbo-ing the engine, the power flies. As long as you can keep the engine cool, the power is phenomenal. Take the lowly detroit '4-53' a 212 cubic engine, but with porting, turbo's and inner/after cooling, that little engine is capable of well over 450 *reliable hp. Trouble is, you need ear plugs with that 4-53. |
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