yes it does change.
You think just because it's out of the pump it no longer has to abide by the laws of physics?
That fuel still has density and is constantly changing in your truck too.
Anyone Install a Fuel Cooler?
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Cowpie1, Aug 3, 2012.
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Again you're looking at things very one dimensionally. The weight and total BTU of the fuel doesn't change as it's heated up. The density and volume does. If I double the density, automatically that means the volume is half. Simple physics.
How does that get you ahead?
Please explain.
Again you guys are only looking at the one half of the equation that benefits you. The other half cancels out those benefits equally. You cannot create BTU's out of thin air. -
Nobody is saying you are changing the number of BTUs in the tank. The key here is when the fuel is warm, the computer injects more. I think we all understand that. Lets now trick the engine into always thinking fuel temp is warm. OK. Still all on board here. By injecting more, denser fuel, you get more POWER from the motor, which leads to more MPG. I don't know how what part is so difficult to understand here. I am not saying that more power always puts mpg up with it to no end, but the stock motors sure benefit from doing what I just said. The sweet spot seems to be around 700 hp, exactly in the zone where many ECMs are tuned to. More power, used correctly, will net higher mpg. Plain and simple.
You know how the fuel wire works, right? What do you have to say about everyone that uses it and it is a consistent, everyone gets a mpg and power boost?Grey Dodge Thanks this. -
So you're saying because the computer injects more fuel, you get an increase in MPG?
That's like ####### for virginity.
Or going to war for peace.
More power does not automatically mean more MPG. Only people with things to sell will try to convince you of this. -
You missed the second half of what I said. But you know what you are doing. I won't offer anything else here.
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Newton's Law of conservation of energy.
Energy cannot be created or destroyed.
As fuel is heated up it expands. Therefor, you have less dense fuel. Your BTU's are taking up more space and the injectors are actually injecting less fuel BTU's than you think.
As you cool the fuel, your fuel becomes more dense. Your BTU's take up less space and you inject more fuel BTU's than you think.
Pretty easy concept to wrap your head around really.
But you HAVE to control your fuel temperature to do it.Grey Dodge and Dice1 Thank this. -
Wow how many times do I have to repeat myself? I already addressed all of that. You are only grasping one point of the whole conversation I'm making. You guys seem "stuck" on fuel density.
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and you are discounting it and saying it has no value in the equation.
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One injection cycle is important, but remember this, regardless of how dense the fuel is, the amount of BTU required to keep the truck at a constant speed is the same. -
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