[Fot] Radiator

[Scott Janzen]

Is it overheating when you are running on the track, or just waiting to get on the track/when you get off and come to a halt?
I have an aluminum radiator, so I can't say for sure that a stock one would work in the conditions you describe, but I'm a little surprised it didn't, if well ducted.  
You might take out the thermostat and put it in boiling water, see if it opens fully.
  
If you want to see photos of my short, wide radiator, go to  http://www.britishracecar.com/ScottJanzen-Triumph-GT6.htm  .  This was custom made for the car, less than $500, I think. I can get you some better photos of mounting and ducting. It's actually more cooling than is needed, keeps temp at 180 on the hottest days even with the smallest restrictor I can find in place of the thermostat.

I think most GT6 racers are running a stock shape aluminum rad with success - I just went this way because that was the shape/size of the rad in my car when I bought it.

On Jul 17, 2015, at 10:50 PM, McKearn McKearn wrote:

Hi All.
 I just finished an awesome track day at Blackhawk with my gt6 and almost everything worked great. It was a nice day of about 78 degrees and low humidity but I couldn't keep the car from getting hot. Not sure exactly how hot but I can tell you that I have a dual oil pressure / water temp gauge and the water temp was all the way up to the 80 psi mark on the oil pressure gauge. Also boiled out of my overflow tank and made a fine mess. I know this has been a subject of debate with these cars in the past and I have actually lobbied in favor of the stock radiators but now I just can't think of any way to keep it.  Just to head off questions regarding cooling system condition. I believe everything is in fine shape. New coolant. 195 thermostat. Hoses are fine. Good fitting shroud with electric fan and a 1 liter overflow tank. Radiator cap  is 7 lbs. The radiator was cleaned and tested by a radiator shop and the guy told me it was in excellent condition.  So I guess I'm looking for an aluminum replacement radiator .I think I want a shorter. wider radiator. Any suggestions?
           Thanks.  P.J.
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