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-   -   Best radiator & why ? (http://www.clubcobra.com/forums/fe-talk/104005-best-radiator-why.html)

FUNFER2 04-17-2010 07:42 AM
Best radiator & why ?
 
What type, brand and radiator on the market do you like best and why ?
I have a older (2001) Griffin 600 hp rated radiator, and some say their not that good.

Jerry Clayton 04-17-2010 10:11 AM
Griffins are very good rads---they have 2 or 3 rows of 1 inch or 1 1/4 tubes--most problems are from wrong choice for application or---and this is big---UNDERDRIVE pulleys that UNDERDRIVE the waterpump and alternator(which runs the fan) causing overheating.

I have C & R nascar type double pass crossflow with oil heat exchanger(which also heads oil, cools oil, maintains desired temp of oil) in left side tank--and a Lincoln MK VIII fan.

Also excellent fans are Ford Taurus and Viper---if fans don't hover off the bench when you hook a battery to them they aren't strong enough

1985 CCX 04-17-2010 10:19 AM
I like Fluidyne...... Because it works.....

FUNFER2 04-17-2010 01:53 PM
When I bought the Spal fan that includes the shroud and adjustable fan, it made a big difference. The radiator I believe is fine, but I'm sure it needs cleaning inside, (I may take it to a shop) before I run the new engine. We have hard water, especially the high amount of calcium. I want everyting,.......to figure out and done before the install of the motor. ;)

patrickt 04-17-2010 04:03 PM
I thought my ERA supplied radiator was Griffin made, and it is: http://www.erareplicas.com/fia/radiator.htm

sllib 04-17-2010 04:39 PM
When you refill your coolant use ONLY distilled water to mix.
Bill Stradtner

FUNFER2 04-17-2010 05:36 PM
I usually use R.O water that's for our salt water reef tank but, a few times on the road I had no choice to use crappy water.

Other than needed height for a big radiator, why did the originals slant back, or even today's cobras ?

Rick Parker 04-17-2010 05:46 PM
Carrol Smith who was one of Shelbys team engineers determined that by tilting any radiator at about a 15 degree angle increased the efficiency by presenting the cooling fins differently to the incoming air. This is discusssed at length in Carroll Smiths excellent book "Prepare to Win". Think about it; that is how all the radiators are packaged in open wheel cars ruch as Indy, F-1 etc.

patrickt 04-17-2010 05:52 PM
Yep, and I remember a thread where an aeronautical engineer gave a short lesson on how that was learned back in the 30's or 40's with fighter planes, or the like. It was a little more complicated for planes, as I recall, because there was a propeller in front of them as well -- but it was a good thread. Really, a slanted radiator in a Cobra just looks cooler.:cool:

patrickt 04-17-2010 05:58 PM
This is Close...
 
Here, this page is kind of like that thread: http://www.ch601.org/resources/cooling_systems2.htm It talks about slanting radiators in WWII fighter planes and how it's still done in modern racers.

undy 04-17-2010 06:54 PM
I'm running a dual 1 1/2" core Griffin with a Taurus 2 speed fan.

dcdoug 04-17-2010 08:13 PM
Quote:
Originally Posted by sllib (Post 1044882)
When you refill your coolant use ONLY distilled water to mix.
Bill Stradtner
Any reason not to use the pre-mixed 50/50 coolant?

patrickt 04-17-2010 08:15 PM
Quote:
Originally Posted by dcdoug (Post 1044940)
Any reason not to use the pre-mixed 50/50 coolant?
That's exactly what I do. The only downside is that you're pissing away a little bit of dough, but frankly, I find it easier than mixing distilled water in with the coolant.

dcdoug 04-17-2010 08:22 PM
Quote:
Originally Posted by patrickt (Post 1044942)
downside is that you're pissing away a little bit of dough
A bit more for coolant is just a bit more water over the dam...:LOL:

patrickt 04-17-2010 08:24 PM
Quote:
Originally Posted by dcdoug (Post 1044944)
A bit more for coolant is just a bit more water over the dam...:LOL:
If a few bucks makes my life a little easier it's a few bucks well spent.;)

scottj 04-17-2010 09:47 PM
Quote:
Originally Posted by dcdoug (Post 1044940)
Any reason not to use the pre-mixed 50/50 coolant?
Yes, the same reason I don't mix my own; water transfers heat best.

undy 04-18-2010 04:54 AM
I like a 30% coolant mix with distilled water. With 50/50 you lose a bit more heat rejection capability that our cooling challenged Cobra's so do need. The 30% gives adequate freeze protection, rust inhibitors as well as pump lubricants.


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