Electric Fans

[charlieh]

Sorry to raise again, what is a common subject - When sitting in traffic my engine tends to warm up. I have twin electric fans which cut in OK and I can/do select manually when the temp needle starts going up, but the cooling effect is insufficient and I end up in a sweat worrying that the engine will one day cook itself. I have read several articles on cooling and one important aspect that came up was that fans should be enclosed in a shroud for maximum efficiency. My own twin fans are not and I think this is the reason that my temp climbs (slowly) in summer. In winter, I do not have a problem and the fans work fine. Can anybody share similar experiences ? My feeling is that I need to get a shroud on the fans, or maybe consider replacing with one large fan (shrouded of course). Are there preferences for 1 fan verses 2 etc. My car has a 351-4V engine and the fans are mounted inside ie pulling through the rad. I have no suspicion that the rad is choked etc as when moving, then cooling is perfect. I just think that my fan set up is not pulling air efficiently through the rad. Thanks in advance to everyone for your comments and thoughts. This forum is just the best!!
Charlieh
Cape Town