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Liquid Cooling - advantage ?

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dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Fri Jan 19, 2007 4:14 pm Post subject: Liquid Cooling - advantage ?

John,



What can one expect with the addition of a rad fairing  that you sell ?

Speed Gain ?

Better cooling ?

Dave

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jdmcbean(at)cableone.net
Guest

Posted: Fri Jan 19, 2007 4:31 pm Post subject: Liquid Cooling - advantage ?

Yes on both accounts..  I think it's better looking as well...



Fly Safe !!

John & Debra McBean

208.337.5111

www.kitfoxaircraft.com

"It's not how Fast... It's how Fun!"



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dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Fri Jan 19, 2007 4:42 pm Post subject: Liquid Cooling - advantage ?

Any idea on a 582 KF IV  whatd kind of speed gain could be had ?



And what is price ?

Dave



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dosmythe(at)cox.net
Guest

Posted: Fri Jan 19, 2007 4:49 pm Post subject: Liquid Cooling - advantage ?

Dave,

    I'll jump in on this one if I may.  Lets see, SPEED SPEED. first.  It's 

sort of like those gadgets you used to could buy for your car that would 

give you a boost of X% per gadget.  If you bought all of them and installed 

then in your car you would have to remove gasoline from your tank daily 

because of the savings. Now, if you put every single speed improvement on a 

given Kitfox it will go faster.  However, the gain will probably be about as 

fast as you can walk.  What's that, 5- 6 MPH....A given Kitfox only goes so 

fast...

    BETTER COOLING.  Now, we are getting to the real issue. To add a simple 

fairing around the radiator is going to improve the cooling.  How much, 

maybe 5 degrees or tops 10.  To fully control coolant temps (especially 582) 

can get to be complex.  Been there and done that.



Don Smythe



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dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Sat Jan 20, 2007 4:53 am Post subject: Liquid Cooling - advantage ?

Hey Don and John , Thanks for the info on the Scoops.



I really Like Don's  prediction is 5 mph  gain.   I think I lost 1 or 2 mph 

from those King fox tires I put  on but really cannot confirn till I get to 

go 5 minutes one way.   It been far too much fun landing everywhere, 

mud,slop ,snow, ice , water. etc     I will have to go get some speed 

tests done.  We under heavy snow squall right now,but hopefully  later today 

I will see if the King fox an handle 6 inches of snow or not.



Heating - Well I really have not had any issues with heating. I have read 

others have lowered rad etc.   Mine rad I will  guess is about 6 inches 

forward of the Tube gear.  How does that compare to others ?  Mine is 4 x 20 

by about 2 inches thick. I think it is the same as a 912 rad. Gary Walsh's 

Rad on his 912S looks the same to me.



Airdrag-  I think the rad fairing scoop might help a bit but I think the 

large opening in the round cowl could actually be a bit more airdrag. ( is 

that the correct term ? )   I  might close mine up a bit by making a winter 

front out of alum and screw it on to try.



My 582  IV runs at best about 90 mph with the old tires   15 tall and about 

6 inch wide  golf cart style.  I think the 582 just runs out of torque 

there.  I can go WOT to 102  103 mph  . New tires are about 20 ot 21 incjes 

tall and about 9+  " wide. but more of a rounded tire and not a flat tread. 

( the braking is really non- existant now)



I have 3 fuel tanks and that big clunky cap on the dash tank must add a 

little drag as well but I ma certainly no expert on streamlining.

Dave



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dosmythe(at)cox.net
Guest

Posted: Sat Jan 20, 2007 9:20 am Post subject: Liquid Cooling - advantage ?

Dave,

    You might have misunderstood what I meant.  I used 5 MPH as an example 

not saying at all you will get that much increase if any.  I didn't really 

notice any change in speed after installing mine.  Just out of curiosity, 

how do you measure 1 MPH.



Don Smythe

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dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Sat Jan 20, 2007 9:36 am Post subject: Liquid Cooling - advantage ?

GPS,



easieest way to calculate.

ASI just a indication of  airspeed, not always to scale but fairly 

consistant.

eg  -- My ASI reads 105 when my calculated airspeed is about 88 to 90 mph

It seems that my airpseed has slowed 1 or 2 mph with hte larger tires on.



btw i was out a few hour ago and those King Fox tires will get you flying in 

8 " of snow

Dave

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Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Sat Jan 20, 2007 1:33 pm Post subject: Liquid Cooling - advantage ?

Veddy Calefully??? 



Noel



[quote] --

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Kitfox III-A
Aerocet 1100 Floats

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Sat Jan 20, 2007 1:34 pm Post subject: Liquid Cooling - advantage ?

What's snow??  Rain and 10 (C) here today



Noel



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