Originally Posted by /\/_|_\/\
Most of the time diesel makes more powers with better fuel efficiency. 250tq while getting 40mpg vs 160tq getting 32mpg. I guess look at what diesel is doing for VW and there's your answer.
It has to do with burning temperatures. pv=knt, as temperature goes up pressure does as well. Since diesel burns hotter, you get higher temperatures per volume. This raises the pressure, causing (effectively) more force per unit burned. This allows diesel to have more power behind it, unfortunately due to how it burns it isn't as easy to deal with as gasoline would be. You require stronger engines as well as a different ignition method. Diesel cannot burn at the same temps as gas. A fun trick is to get some diesel and put out a match in it, most people would be afraid to do that however properly refined diesel won't burn at the temperatures a match does.
So essentially diesel has more potentional energy, the problem is getting at it. VW has put a lot of time and effort creating amazing diesel engines. BMW apparently does the same thing, some of these cars are pretty good on the torque. They have pros and cons but I won't get into that, mainly it's easier to get the power from a gas engine as apposed to a diesel.
 ARRRR if I had waited!
Originally Posted by andrews2547
You know the Ferrari LaFerrari and Porsche 918 are hybrids right?
People also seem to forget about the Fiska Karma, Tesla Roadster and Tesla Model S
With diesel you get all the power in one big lump, usually within 500 rpm. Petrol/gas is always going to be better for more power.
inb4 Audi winning Le Mans with a diesel.
That might be true, but the Audi got far more MPG than the petrol/gas cars which is why it won. If Audi put a petrol/gas engine in the R10, the petrol/gas R10 would be a lot quicker in shorter races.
I wouldn't say gas has more power, it is just quicker. Various reasons, I don't think either of us want to get into the why so... lol I do agree though, essentially diesel is more upfront although I think that is changing. Will it change enough to make a difference? Doubt it, other technologies are moving just as fast although a diesel hybrid would (IMO) be better than a gas one.Edited by mushroomboy - 3/18/13 at 2:30pm