irishtom29 wrote:
The future of high performence gasoline engines more likely belongs to smaller turbo motors than to large normally aspirated ones. My 1 liter 3 cylinder Ecoboost Fiesta makers 123 HP and 148 torque. Scale those numbers up to 5 liters and you've a great deal of power. Note that GM has jumped on the turbo 6 train with a very powerful 3.6 dual turbo V6 used in a hot version of the Cadillac CTS.
Of course turbo charged big displacement gasoline motors would be useful too.
The Ford V-10 and probably GM's offerings in big block engines have been fuel-injected for years. There hasn't been a "normally aspirated" for quite awhile. You are probably using that phrase to refer to non turbo or supercharged engines.
I definitely agree with your premise, that injecting air is a better and more efficient way to get the most out of an engine (at least the most horsepower to weight ratio).
I'm thinking this thread was initiated by someone that pines for the days of the big block, when they were an excellent power plant for towing. They had gobs of power and ran without problems, for the most part.
I find it hopeful that, in today's market, there is more advancement in motive engineering than in the days of just making year-over-year cosmetic changes to haulers.
