Cooling the fuel...

Topic: Cooling the fuel... (Read 3105 times) previous topic - next topic

Cooling the fuel...

Reply #15 – August 01, 2006, 11:55:59 PM

This is true, but there's also the constant argument as to whether turbulence is a good or bad thing for the incoming air. Personally I don't think turbulence matters worth a dick until after it mixes with fuel.

Cooling the fuel...

Reply #16 – August 02, 2006, 12:00:58 AM

Lol. No point in debating it here, I'm no expert. In either case I can't afford to make that mod right now because I'd need a new air cleaner. As for the fuel I offer this quote from here http://www.roadandtrack.com/article.asp?section_id=20&article_id=3051

"The fuel cannot be at less than 10 degrees Celsius (i.e., around 18 degrees Fahrenheit) less than ambient; nor can any cooling be applied. A cooler fuel, of course, would be more dense and hence contain more energy per unit volume."

That's one of the guidelines for a race.

Cooling the fuel...

Reply #17 – August 02, 2006, 12:26:57 AM

The car is going to feel like durring the summer because of the heat. My car with SEFI does the same thing just not as bad. I notice a difference in performance on a humid 90* day vs. a cool 60* night. The car runs much better on the 60* night. The only thing that'll make it run better in 90* heat is to, uh, move to northern Canada

Cooling the fuel...

Reply #18 – August 02, 2006, 12:40:39 AM

I live in Canada, just not far north enough I guess

But to my way of thinking cold is cold no matter where you are. It may not be a mainstream topic but it seems to be established that colder fuel is beneficial. And even if my planned cooler won't take the fuel below zero it would certainly keep it from heating up too much. If all of you guys think I'm looking to make grand power increases with this mod you're mistaken I'm just trying to maintain a baseline for my air/fuel mixture so I don't have to adjust it as often for optimal efficiency.

Cooling the fuel...

Reply #19 – August 02, 2006, 10:35:51 AM

Quote from: sum_weirdo

It may not be a mainstream topic but it seems to be established that colder fuel is beneficial.

Beneficial? Yes.
Will you be able to tell any difference if you run a fuel cooler? NO
Is a fuel cooler useless in your case? Yes

Cooling the fuel...

Reply #20 – August 02, 2006, 12:01:32 PM

I noticed a difference just from re-routing the fuel line away from hot surfaces. I still think this is worth experimenting with. I'll probably rig up a small tranny cooler with a dedicated fan. Bear in mind I'm only trying to keep the fuel/air temp more consistant for more effective tuning.

Cooling the fuel...

Reply #21 – August 02, 2006, 12:43:17 PM

Quote from: sum_weirdo

Bear in mind I'm only trying to keep the fuel/air temp more consistant for more effective tuning.

Fuel injectionFuel injectionFuel injectionFuel injectionFuel injectionFuel injectionFuel injectionFuel injectionFuel injection
:D

Cooling the fuel...

Reply #22 – August 02, 2006, 12:52:01 PM

Fuel injection? What's that? :D Lol. I'm half tempted to go that way but I'm under the impression converting carbed to injected isn't as easy as going vice-versa. Unless the computer would be alright with a bunch of missing sensors

Cooling the fuel...

Reply #23 – August 02, 2006, 01:13:08 PM

Well unless the car was completely hacked up going from FI to carb..... oh wait....was the car originally carbed? (remembering you're a Canuck)

The engine-side of the swap would be easy, and if you're feeling froggy a MegaSquirt ECU will be more than sufficent to control it. The fuel system would require a bit more work though.

Anyway, all the trouble for cooling the fuel really isn't worth it IMO.

Cooling the fuel...

Reply #24 – August 02, 2006, 03:18:46 PM

The car came to me with a Motorcraft 2150 fed by mechanical pump. I tend to think it came from the factory that way. But then again the last owner removed a bunch of stuff and there's certainly a few orphaned wires and plugs around. Any certain way to know? The VIN maybe?
Setting up the fuel cooler wouldn't take much effort at all for my car, I'd probably be done in half an hour. Perhaps it won't accomplish anything but I've seen enough references to it on the net for me to think it's worth a shot. I'll let everyone know how it goes.

Cooling the fuel...

Reply #25 – August 02, 2006, 04:25:56 PM

What does the "Certification Label" on the driver's door pillar say?
If it says MFD in USA and it was sold in Canada, the "Type" would be: U.S. Cert. Void--Export.

Cooling the fuel...

Reply #26 – August 02, 2006, 04:34:30 PM

The door jam label is gone :flip: Why someone would remove it I have no idea.

Cooling the fuel...

Reply #27 – August 02, 2006, 04:43:46 PM

Back in the day (late '40's) people felt there cars ran better on rainy days. So putting water injectors on carbs. was a popular fad for a few years.

Cooling the fuel...

Reply #28 – August 02, 2006, 05:25:13 PM

I'm doing alot of research on this and opinions on whether it's worth it vary. Some spout the presumed fact that liquid doesn't change density the same way air will. Perhaps not. But the idea I've chosen to follow is that if the fuel is colder then the air it mixes with will likewise be cooler. I mean consider it like this, the cooler sends chilled fuel to the carburetor where it pools in the bowl. That would cool the carburetor and any air entering it. Sound plausible?

Cooling the fuel...

Reply #29 – August 02, 2006, 05:36:27 PM

Hey while we're on the subject of cooler air...some time ago I got rid of the vacuum PCV valve in the oil cap and replaced it with an old fashioned breather cap. But the other half of the system consists of a tube running from the back of the valve cover to the air cleaner. That has to be routing hot interior engine air and gases into the air supply. I should do away with that.