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My 1991 Talon TSi Compound Turbo AWD It would almost be easier to list what hasn't been done engine wise to this car. Suffice to say that he gets mid 40 mpg with an auto, and is pretty darn fast. Check out this extensive build here. By pgfpro - 432 replies
In forum: EcoModding Central
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Why no more lean burn?? If the Honda Insight, Civic VX and HX were so good at achieving high mileage with lean burn, why is it not in all current Hondas and other economy cars? This thread looks at reasons for its demise & possible return in new cars. By Mad Adder - 130 replies
In forum: General Efficiency Discussion
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Dam, It works! (Air dam on Smart Fortwo: 3-4% MPG improvement) In addition to a clear lower grille block and smooth, black wheel covers, Chumly added and tested a simple air dam: "I just made an air dam out of some lawn edging. A-B-A testing shows 3.16% - 4.2% (avg 3.73%) better mileage. It took a whole half hour to make and install it, I should have done this a long time ago!" By chumly - 50 replies
In forum: Success Stories
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1997 Civic CX to HX engine/VX trans swap! 63 MPG @ 62 MPH When his 1997 Civic CX engine needed a lot of work, turbovr41991 decided to spend his repair time doing something different: he picked up a rusty Civic HX and swapped over the more efficient lean burn engine instead, and went with the more efficient gearing of the Civic VX. With a few other modifications in place, the car is returning seriously impressive highway fuel economy. By turbovr41991 - 187 replies
In forum: EcoModding Central
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2005 Prius engine into 1986 MR2: mk1 1nzfxe Prius swap (gas only) Mr220v informs us that used Prius engines are dirt cheap, and therefore fun to experiment with! He swapped one into an MR2, and using the Prius variable cam timing/Atkinson design, he now has variable compression on demand, via a push-button. He's still working out tuning, but fuel economy has gone up a healthy amount, from ~30 to 37 mpg (US). By mr220v - 114 replies
In forum: Success Stories
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Old square sedan kammback Joris documents the construction and testing of a nicely made aluminum-skinned Kammback on his (very squared off) notchback Euro Volvo sedan. The addition is cleverly attached at the drip rails and hinged to preserve access to the factory trunk/boot. By Joris - 74 replies
In forum: Aerodynamics
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