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Fuel cooling system

Old 12-13-2008, 01:28 PM
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SW / 36 Ireland
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Default Fuel cooling system

Hi Guy's I'm busy making a Fuel Cooling system like they use in the Drag Race Car's.
I will connect this between the tank and the Carb.
Just you have to fill some crush Ice in to cool up the fuel, will this work?
What will be the effect on the Fuel and the Engine'?
Did anybody try this before'?
Is made of a little can with Top and foam isolation inside, inside you have a Spiral Tube Pipe with Intake on the Top and Outlet on the Bottom to the Carb.
Also will be a Bigger Air Scoop on the deck connected to a Air Duct to bring fresh Air straight in to the Carb and a new X445 Prop.
I did some modification already with some scoop and Vent ports to get the heat out,you can see on my Gallery.
I will check the top speed before i install all this so i can see if there is any Improvement and also Pictures and Video's.
Please let me know what you think and if you have any suggestions.
Tanks
Robert.
Ireland.
Old 12-13-2008, 03:49 PM
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toesupwa
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Default RE: Fuel cooling system


ORIGINAL: SW / 36 Ireland


Just you have to fill some crush Ice in to cool up the fuel, will this work?
What will be the effect on the Fuel and the Engine'?
Did anybody try this before'?

Ice will turn to water.. and be less efficient. Dry ice will be a better bet.
Yes it will work...

As the fuel becomes colder, it gets more dense, the same thing that happens with air. So if with a more denser air, the engines gets better power, it´s expected that with more density, the fuel would burn more efficiently and consequently will generate more power... at least thats the theory.

The effect on the fuel is known.. quite what effect it would have on the engine is anyone's guess....

Its been used on drag cars and also F1 cars... although the FIA banned its use on F1 cars.
Old 12-13-2008, 04:03 PM
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SW / 36 Ireland
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Default RE: Fuel cooling system

Thank for your soon reply,the idea is to use dry ice your right,but due to the compartment is not so big i want to try first with some ice on one Fuel Tank and see wat result i get.
when i finish it i will put some pictures and Video of the result.
Tanks mate'.
Old 01-31-2009, 11:33 AM
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Default RE: Fuel cooling system

Well my Friends,here i will present you the new look of my Shockwave 36 all done by my self.
This boat now have Extra:

1) Water Intake
2) Water Outlet
3) Heavy Duty Flex Cable
4) Propeller 445
5) Three Functional Air Scoop In The Back
6) Auto Bailer
7) Functional Side Vents
8) Longer Exhaust Outlet
9) Header Cooling System
10) Fuel Cooling System
11) Main Deck Functional Air Scoop
12)Own Design.

GO TO MY GALLERY.AND THANKS FOR YOU VOTE.
Old 02-01-2009, 07:30 PM
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Default RE: Fuel cooling system


Post back on the difference in power / speed with the fuel cooler working.
Old 02-02-2009, 05:12 AM
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SW / 36 Ireland
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Default RE: Fuel cooling system

I will, is abit cold now here,and i'm waiting for the GPS to come.
As soon i have i have the first Video i put this on YouTube.
Thanks Mate'
Cheers.
Old 02-02-2009, 11:05 AM
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Default RE: Fuel cooling system

The problem I see isn't with the fuel, it's with the lubricating oil. As we all know, oil gets thicker as it gets colder, so will the thicker oil still let the engine spin up? I think that is going to be the issue more than anything else. Since dragsters and funny cars run straight methanol, they don't have this to deal with. Also, how will the cold affect the nitro in the fuel? You may want to contact the manufacturer of your fuel before you get too far in this project
Old 02-02-2009, 11:17 AM
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SW / 36 Ireland
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Default RE: Fuel cooling system

Hey Hi.
Thanks for your coment,
This i like,yes we are on the same page.
Old 02-02-2009, 11:45 AM
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SW / 36 Ireland
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Default RE: Fuel cooling system

What about use a low Oil Fuel?
I'm on 20% now fromO'Donnel's i have 16% Racing to'
I whas thinkin the same as you and i did exatly wat you say.
The fuel run in to the spiral for maybe 3sc ,you can start the Engine first and than fill the can with Ice or dry Ice after.
i will run the engine tomorrow and see.[sm=thumbs_up.gif]
Old 02-02-2009, 06:03 PM
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Default RE: Fuel cooling system


Be extremely carefull of reducing oil percentage. Cold air has more oxygen than warmer air. You will have to start carefully so you do not warm up and run on a LEAN mixture. Retune as it warms up. Then put the throttle to WOT. You may need to keep the battery on till it warms up pretty good. Do not rev it up with the battery on. It can overheat the coil in the plug and cause turns to short out. Really cold starting & running is a different game with some engines.
Try not to get sucked into a endless time of hard starts & steady running. If it gets troublesome at all, stop. Wait for a warm day.

Rich
Old 02-02-2009, 06:12 PM
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Default RE: Fuel cooling system

I totally agree, Rich. There are several problems involved with this experiment and it needs to be done with EXTREME CAUTION. Last thing I want to read is someone killed by an engine blowing up or CO2 poisoning, since that is what dry ice is made from
Old 02-02-2009, 06:16 PM
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Default RE: Fuel cooling system

I gone start the Engine tomorrow on 20% O'Donnel connected to a water hose for few Minutes and check the temperature.
Today we have snow here and is very cold otherwise i do a run test tomorrow.
I still have to take one of the ring out of the Cylinder head. But i gone start first and see wat' the story.
Old 02-02-2009, 06:23 PM
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SW / 36 Ireland
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Default RE: Fuel cooling system

I gone use just crush ice for now,cos other wise i have to instal a release valve for the gas create by dry Ice.
And wat you think on the new look? and other job's done?
Old 02-02-2009, 06:36 PM
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Default RE: Fuel cooling system


Hold everything.
Are we talking about a MODEL engine ?.........Or a real, full sized car engine.????????

Rich
Old 02-02-2009, 06:43 PM
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Default RE: Fuel cooling system

a model I think. I myself had a conrod blow through the bottom of an engine, putting aluminum through the bottom of the boat it was in. Just looking at worse case scenarios here
Old 02-02-2009, 06:50 PM
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Default RE: Fuel cooling system


If we are on a model boat engine. Why not just make a very simple water cooled fuel line cooler ?
It only needs to be a 6" to " long piece of brass in a larger piece of engine INLET coolant line. That keeps the fuel temp cool & CONSTANT so the adjusted fuel needles do not need to be redone as the CO2 or ice are used up.

You have to maintain a constant temperature of the fuel, for a constant power increase.
Remember as you run out of CO2 & ice, Your fuel becomes less dense. LESS DENSE fuel is a lean mixture. It will ruin the motor VERY quickly at full power.
SW.
You have grabbed a Tiger by the tail. Good luck.
Old 02-02-2009, 08:33 PM
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Default RE: Fuel cooling system

Wel mates on the basic wat i have ask about the reaction of thr fuel no body know cos nobody have try this befor.
They have made the Super Charge and also the Co2 Nitro gas for this Engines,now i have made this FCS ( Fuel Cooling System) to see wat will happen.
If it's work we have a next level and still more to go'.
i have to look for a Electric Fan to produce a wind stream from the front like the boat is running to adjust the Maindeck Air Scoop from inside
so the tream go's straight to the Carb.
That is also part of the game.
honestly i like to see my self wat gone happen.
Old 02-02-2009, 08:38 PM
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SW / 36 Ireland
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Default RE: Fuel cooling system

what kind of Boat are you running guy's ?
Old 02-04-2009, 02:25 PM
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Default RE: Fuel cooling system

Well Today is a Historic Day in the Nitro Boat and Cars World.
I have start the Engine On Ice and with a longer Tail Pipe to day and run it for about 15 Min and you can feel de deferens.
You can hear the Pressure it's like telling you let me Go'!!
I have check the Temp with a Lazer Temp Gun and it whas Minimum 97F and Max 98F.
I have vidoe of this historic Day.
Now we will go for the Judgement Day!.
I have to wait for the GPS to come and a Dog Drive then i can go and see wat;s about.
Cheers,
And thanks for all your Coment and advise and support.
Lets go the next leve.
Old 02-04-2009, 04:34 PM
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Default RE: Fuel cooling system

97F......was that the engine temperature?

if it is, it's running too cold, the engine will lose its fit very early.

Dan.
Old 02-04-2009, 05:06 PM
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SW / 36 Ireland
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Default RE: Fuel cooling system

Yes, jut on Idle ,
I have 2 Videos on youtube,
it will reach higher when you run.
But is work very wel and you can feel the power and the noise with the longer tail pipe make it more powerfull.
the sound coming out is like a real Power Boat.
Old 02-04-2009, 06:30 PM
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Default RE: Fuel cooling system

ok thanks.

when you get the boat actually running, let us know how long you went on the pipe compared to where it was before.

Dan.
Old 02-04-2009, 06:34 PM
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SW / 36 Ireland
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Default RE: Fuel cooling system

Ok,I will put videos on Youtube'.
Bay the way what you think about the look?
Cheers
Old 02-11-2009, 12:24 PM
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Default RE: Fuel cooling system

i think the dry ice would freeze the fuel. i think regular ice mixed with water and a tad of salt will work very well. just make a coil out of brass tubing in have it inside a small tank with the mixture. this is probably your best bet
Old 02-11-2009, 02:03 PM
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Default RE: Fuel cooling system

I eagerly await the result on this test.

I don't think that cold nitro would work that great and the reason I say this taking in consideration the Country and Province I live in, we run our boats as late in the year as possible and the one thing we noticed is that nitro does not start too good when its cold.

it also tends to run very lean (of course we change our needle setting), another thing we also do when running our 1/8 buggies and other nitro vehicles (I know they are not boats) is that we make the fuel line coming from the tank longer so that it wraps around the engines head.

we have found that warmer nitro actually runs better.

Dan.

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