[V8Vairs] cooling

[GnKHOFFMAN at aol.com]

My 16" shrouded electric fan doesn't have a footprint big enough to cover  
the entire backside of the 31"wide 19" tall radiator, but still pulls 
enought  air thru to cool nicely.  Checking for full voltage at the fan (as  
mentioned by others) is important too.  AND, I found I had initially wired  to 
the wrong wire on my electric fan (it was the slower speed). 
 
I changed my exit air from the fender wells to the bottom of the trunk, and 
 put a Camero front spoiler on to help force air in.  I was on the road  
racing track last April when the fuse blew on my electric fan.  And at  speed 
I had plenty of air to keep the water temp at 190 degrees even without the  
fan.  Shrouding on the front of the radiator (to force all the air thru the  
radiator) is important too.
 
Having enough timing advance helps (but not TOO much our you will have  
detonation).  Higher octane fuel helps too.
 
Water wetter helps (but is more effective in lowering temperature if run  
with straight water than if run with an antifreeze/water mix).
 
I am running antifreeze/water mix, and I am able to have a temp of 170  
degrees (and I fought cooling problems for a long time, ultimatly finding that  
corrosion from the engine water jacket had plugged up my then new aluminum  
radiator).  Figuring out what is the problem with any particular setup can  
be a real bugger, but keep after it; you can solve the problem.
 
Gary
 
 
In a message dated 8/22/2012 2:30:12 PM Pacific Daylight Time,  
patiomatt at aol.com writes:



eng comp heat exits out the body panel directly under the  rear window. 
opening 
is 10" x  40". sorry for pic's i don't know how  to load pi's , and my was 
not to 
be  found.

denny


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Engine  compartment heat is not  a cooling problem...  only has to do  with 
 your comfort....




Airflow  thru the radiator  is the killer!   Underside of the LM  is a high 
pressure  area!    It has to be forced!


Matt Nall
Charleston,  Oregon
http://tinyurl.com/The-Patio
http://tinyurl.com/Matts-Tech-Pages