travelnutz wrote:
Only a race fanatik gearhead living in a knowledge vacuum would mention methanol and nitromethane fuel in a tow vehicle thread. The fuel used is "gasoline" or "diesel" in any production tow vehicle. Tow vehicle's engines do NOT have 8,000 to 10,000 plus revving engines that work best with a very quick instant burn fuel being used due to having such a short time duration of piston downtravel. Only a quick instant flash would be useful or unburned fuel and flames would exit the cylinder and that's wasted energy. A very quick instant flash burn time has low BTU content as it's an instant very short "bang" and it's all done/consumed.
However, gasoline has a much longer burn time and higher BTU's released and is suitable for a lower RPM engine with enough time for the fuel to burn fully and expand the hot gasses which is increased energy driving the piston downward. Diesel has even a longer burn time to utilize it's higher contained BTU's for even more thermal expansion of the gasses during the piston downward travel in the slow revving engine. The longer the burn time, the higher BTU's released as thermal expansion energy.
Again, this thread is about the production engines used in vehicles for towing or load carrying vehicles, NOT racing engines.
Have it your way:
Lets talk about E85 and gasoline then.
Gasoline= around 116,000 BTU's / gallon.
E85= Around 82,000 BTU's / gallon.
You said wrote:
The biggie is that gasoline has an 11%-12% lower btu content per measure than diesel fuel so your gas engine starts out with a big disadvantage and it increases from there as the RPM's increase.
So what is going to put out more power? E85 or gasoline? According to your above post the gasoline should because it has more BTU's. If so, it should be easy to put up a dyno run proving it. Have at it. :B
Or are you going to now tell me that nobody uses E85 for towing? LOL