[Red Badger]

I prefer superchargers over turbos..............

[RC one]

Waste gates, intercoolers, and design improvements have put the turbocharger far above the blower IMO. Blowers use to be the way but I think turbos have proven themselves to be the superior forced air induction system. I can't afford to put either on my hot rod though. :{

I think the trick to fuel economy is in aerodynamics and weight reduction. Thermocouples are interesting and i definitely approve of the R&D but when it gets right down to it, if you build a lighter more aerodynamic car, you will get better gas mileage. Much better. Case in point, my 400 hp corvette gets 28-30 MPG on the highway because it is light weight and extremely aerodynamic. If that big old V8 were replaced by a 150 hp inline four cylinder that weighed a hundred + pounds less, and the ginormous tires were replaced by standard economy car tires that weigh half as much, and the transmission were downgraded by another hundred pounds, I imagine I would be getting around 40+ mpg at 60 mph.