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I was looking through an automotive performance catalog and started thinking about fuel coolers (typically a container with a coil inside that you fill with ice or dry ice or something) to try to reduce the temperature of incoming fuel. So the end result is a cooler fuel, which will increase the mass flow rate through your jets or fuel injectors. You have not increased the energy of the fuel at all, actually decreased the energy content of the fuel due to lower entropy. It seems like you would want to do the opposite, increase the energy of the fuel (add heat) and simply compensate the lower mass flow rate with larger jets or increased duration of the fuel injection pulse. Anyway it just seems like an inconsistent and difficult way to add more fuel. I would appreciate any good input from a scientific point of view.

2007-09-10 05:16:11 · 7 answers · asked by Ryan K 2 in Cars & Transportation Other - Cars & Transportation

I think the answers so far have not reinforced what I already stated. Cooler fuel is denser fuel is more fuel is more power. Great, I understand that. But if you need more fuel, why don't you just re-jet your carb? Maybe the guy who said it also cools the intake air was on to something, since its a lot harder to add air than it is to add fuel. I'm looking for an answer about the energy of the fuel, not the quantity.

2007-09-10 06:03:18 · update #1

7 answers

The cool fuel would also cool the air and make it more dense. With the denser air and the denser fuel, you can pack more into the cylinder. This will give more energy when ignited.

2007-09-10 05:23:59 · answer #1 · answered by Fordman 7 · 1 0

Fuel Cooler

2016-10-02 09:52:54 · answer #2 · answered by francene 4 · 0 0

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RE:
Why do fuel coolers work?
I was looking through an automotive performance catalog and started thinking about fuel coolers (typically a container with a coil inside that you fill with ice or dry ice or something) to try to reduce the temperature of incoming fuel. So the end result is a cooler fuel, which will increase the...

2015-08-06 08:19:34 · answer #3 · answered by Silvanus 1 · 0 0

cooling the fuel compresses the molecular structure, such that the hydrocarbon molecules are closer together. The result is that more molecules are contained withing the same volume of fuel. More molecules = larger combustion. The big question is whether your ECU will add air to the fuel mixture based on the temperature of the fuel, or the temperature of the air? I believe mose ECU's add air based on the ambient temperature of the air entering the intake. So, as a result, cooling the fuel will not increase performance, but will in-fact hurt performance, since the engine will be actually running rich. However, if you had a fuel tuner, you could adjust the A/F mixture manually to compensate for this.

2007-09-10 05:25:29 · answer #4 · answered by This is SPARTAAAA! 5 · 0 0

When a given substance is cooled the molecules "settle down" and more molecules will fit into a given space.

Put ice in a glass and fill it with water to the brim. Set it down and come back an hour later. The glass will have overflowed when the ice melted; a graphic representation that when cooled more molecules can fill a given space.

So what you're doing is sending more fuel to the engine without increasing anything else.

2007-09-10 05:22:26 · answer #5 · answered by Anonymous · 0 0

the reason is that in forced air induction cars (turbo and super charged ) the incoming air temperature gets really high, and this is really bad to give your engine 300F air in the intake. because the big limiting factor in your output power is when your pistons melt, the higher the temperature difference you can run, the more power out you get, after an intercooler (the thing that cools the air down after your turbo) the fuel does lots of the cooling of the air. that is one reason to use methanol instead of gas, is because it cools your air way more than gas and usually to the point of not needing an intercooler. cars like the WRX have an exhaust temprature sensor in them and when your pistons are at the melting point, the computer starts to dump more fuel than it would need otherwise because the extra fuel cools off things. your fuel cooler would do the same thing without messing up your fuel air ratio. please message me if this is not clear enough

2016-03-22 17:50:43 · answer #6 · answered by ? 4 · 0 0

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2015-08-04 08:53:47 · answer #7 · answered by Anonymous · 0 0

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