DeTomaso Mailing List: July 99, Message #386

Good idea, and it sounds like an easy one to do.

John #5616

> -----Original Message-----
> From: detomaso@realbig.com [mailto:detomaso@realbig.com]On Behalf Of Asa
> Jay Laughton
> Sent: Friday, July 09, 1999 2:50 PM
> To: Multiple recipients of list
> Subject: Re: Engine Cooling mod
> 
> 
> Write it up for a tech article.
> 
> Asa Jay
> 
> 
> At 05:14 PM 7/9/99 -0400, Jack Tunnell wrote:
> >Hello All,
> >
> >After seeing Dennis Quella's cooling mod on his race car, I
> >decided to try it on my warm running street car.
> >
> >The mod is to drill a small hole in the back of each head in
> >the upper portion of the water jacket.  Tap to accept a pipe
> >thread to a 3/16 flare fitting.  Using hard lines with
> >expansion loops or flex lines, connect the two head bleed
> >ports together and run to the boss on the swirl tank that
> >used to hold the temp sensor.  If you have aftermarket tanks
> >you will have to weld a fitting into the hard line that goes
> >out of the swirl tank.
> >
> >The concept is that on a std Cleveland a small amount of
> >steam is always generated in the heads due to poor flow.
> >This adds to system pressure and drives small amounts of
> >coolant out the overflow even in the best of conditions.
> >
> >The results on my car have been dramatic. No overheats and I
> >haven't had to add coolant since I did the mod.  That
> >includes 2 track days at Parump.
> >
> >Keith Verges just had the heads off of his Blown Corvette
> >and reports that they have a similar system.
> >
> >More later,
> >Jack Tunnell  #3583
> >Dallas  972-248-3992  xt 21
> > 
> 
>