[V8Vairs] Successful Rear Radiator

[Doug]

After driving from Modesto, CA to Palm Springs then on to Phoenix and back ( some 2000+ mile trip-18mpg average), my only issues is ambient temperatures over 75 degree to maintain freeway speed of 75-80 through the Nevada roads. Never have a problem at temperatures over a 100 degree at 55-60mph on summer days. Cooling air was always supplied by fans.
Through my real world testing I was not able to prove that there is any natural air flow to the radiator with an unmodified Corvair body. Never tested scoping air from under the car and exiting out to rear of the car.
I am on my third modification of my rear radiator. This includes the large radiator that fills the engine compartment from Radiator Classic 3 Row Performance Racing All Aluminum Radiator For 7.3 Ford cargo van V8 DIESEL , 23-5/8 x 30-3/4 x 2-1/4, core size 23-5/8 x 30-3/4 x 2-1/4. I'm also change the fans (2) to a higher CFM with a total specified 4000CFM from Derale.
Interesting article,
14 rules on engine cooling;
http://www.arrowheadradiator.com/14_rules_for_improving_engine_cooling_system_capability_in_high-performance_automobiles.htm

Doug


-----Original Message-----
From: moonpie8n <moonpie8n at comcast.net>
To: dave <dave at rcaz.com>; discussion of non-stock engines in Corvairs <v8vairs at corvair.org>
Sent: Mon, Dec 30, 2013 10:17 am
Subject: Re: [V8Vairs] Successful Rear Radiator


   Interesting......................  I  would  be  interested  in  seeing  your 
"Paperwork".  Most  people  don't  wanna  do  the  R&D  necessary  to  make  it  
work.  But ," if  we  can  put  a  man  on  the  moon,  we  can......................." 


----- Original Message -----
From: "Dave Wenzlick" <davidwenzlick at cox.net> 
To: "discussion of non-stock engines in Corvairs" <v8vairs at corvair.org> 
Sent: Monday, December 30, 2013 10:56:31 AM 
Subject: Re: [V8Vairs] Successful Rear Radiator 

For a strong V8 (large amounts of heat to deal with) I'm convinced a rear 
position radiator will always leave you wanting. I've experimented with ducting, 
air dams, spoilers and channels while driving miles and miles with tattle tale 
yarn afixed all over my LM coupe. I've shot video of the yarn tests and the 
airflow paths and even have instrumented the car with several differential air 
pressure sensors. 
I know it is a lot harder to do than most people can imagine until you have 
tried it. If I ever move my mid-mounted radiator to a better spot I want it to 
work better than what I have now and not be another compromise. 

Dave W. 


---- moonpie8n at comcast.net wrote: 

============= 
   I  am  sure  it  can  be  made  to  work [but,you  just  can't,"PLOP" it  in  
there]....  Because  you  are  working  at  the  rear  of  the  car, "aero"  is  
not  on  your  side. Contact  me  directly , and  I  will  give  you  my  
thinking  [if  U  are  interested ]. 

----- Original Message ----- 
From: "Ryan Counterman" <vairking at hotmail.com> 
To: "discussion of non-stock engines in Corvairs" <v8vairs at corvair.org> 
Sent: Saturday, December 28, 2013 4:31:40 PM 
Subject: [V8Vairs] Successful Rear Radiator 

I know this has been discussed but I don't remember any definite solution.   
Has anybody had any real success with a rear radiator?  And when I say success, 
IMO electric fans are NOT needed while the car is in motion.  If you have such 
an engineering marvel, could you please post specifically what you have done to 
get air to flow through the rad while it is moving?   
As I contemplate what to do with my GTP powered Corsa, looking into the trunk 
area, a rear rad would be really easy.  The success of my front mounted rad 
Kelmark car tells me to stick with what I know and put it in the front.   
Ryan Counterman65 Corsa Coupe Kelmark66 Corsa Convertible S/C 3.8 and F40 6 
Speedhttp://corvaircenter.com/phorum/read.php?1,440936,page=1 
                                                
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