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-   -   427so overheating (http://www.clubcobra.com/forums/fe-talk/73266-427so-overheating.html)

houston snake 09-30-2006 05:47 PM
427so overheating
 
I have a 427SO. Its in a Lone Star kit car. It heats up in traffic. It has a fluidyne radiator that tilts back at an angle. I have a 1800 pusher fan on the front and a shrouded 2300 puller fan on the back. The engine has two fours (600s), a tunnel wedge manifold, and port and polished aluminum heads. It idles in the driveway at about 200+ degrees...indefinitely. When I take it out in traffic the temp gradually rises. I bring it back home at about 220. I raise the hood and it drops back to 200+. I need to get the temp under control, I can't enjoy the car. Any suggestion on what to do?

brettco 09-30-2006 06:48 PM
check the gauge- mine was way off.

Excaliber 09-30-2006 07:35 PM
My guage is (remains) off about 7 degrees celsius on the high side, that quite a lot. It's worth verifying your actual temp.

392cobra 09-30-2006 07:50 PM
The VDO guage in my LSC runs 12-15* high.Even with new sender.

Lew Ledyard 09-30-2006 08:15 PM
Check your pulley sizes. Don't use underdrive pulleys. They don't move the water fast enough.

mr0077 09-30-2006 08:17 PM
Make sure the lower hose isn't collapsing when the engine revs...otherwise it sounds like an airflow or shrouding problem.

vettestr 09-30-2006 09:57 PM
Do not forget the oil. Do you have an oil cooler and is it controled by a T-stat? Engine oil runs about 40 to 60 degrees hotter than coolant temp so if at 220* coolant and oil can be 40 plus degrees hotter then the recomended max of 260 * may be an issue. You want oil to reach 210 so contaminates are vaporized.
I bet you have a 200* coolant T-stat I would drop to a 180* unit and folllow the other good ideas already mentioned here on this thread.


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