Guest zfan Posted April 13, 2002 Share Posted April 13, 2002 Hey Guys, I got a question re: 3 large holes on either sides of the radiator. What are they for. They are pretty large and would seem to defeat the purpose of sealing your radiator off from airflow leaks around edges? Anyway has anyone blocked them off? If so did you notice cooling temp changes? Did under hood temp go up? Sorry for so many questions but I am very curious as to their usefulness! Thanks, Mike Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 13, 2002 Share Posted April 13, 2002 Sorry forgot to mention this is a 1971 240 Z. Mike Quote Link to comment Share on other sites More sharing options...
johnc Posted April 14, 2002 Share Posted April 14, 2002 Are you talking about the 3" diameter holes on the sides of the core support? Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 14, 2002 Share Posted April 14, 2002 The area on each side near the fender has a duct for interior air. There is also some down from those and in further. I'm assuming there were to reduce the pressure build up once its going down the road, it would probably build up some pressure if all the air had to come through the radiator, who knows, buffeting,lightening, weird noises, any of them could be the reason they were designed in there. That of course is a guess, they seem to make nice holes for intercooling although I doubt that was they're original plan. Of course I didn't think the designers plan was to asphixiate the occupents of the early Z car either, but they seemed to have designed it that way. (aw, what we go through to for a good looking body style)... Regards, Lone Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted April 14, 2002 Share Posted April 14, 2002 Zfan, Use a good shroud and you won't need to worry about those holes. Many people discount the importance of the shroud. It is as vital a part of your cooling system as the radiator and fan are. Quote Link to comment Share on other sites More sharing options...
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