Nov 9th, 03, 02:12 PM
This is my first post so pardon any mistakes.I recently fired up my 68 camaro after a hard 2 years of restoration.Anyway the problem is that after the car has been running i would say atleast 20 min.the temp.starts rising into the 230's while sitting in park.Of course once i start down the road the temp. drops.I havent seen how hot it will get while sitting at idle scared it will hurt the engine.the engine is a 93 5.7 lit. bored 40 over,stock everything except the cam the cam was in the engine when i bought it so i dont have any specs but it hits a good lick.the intake is a edlebrock performer with a 600cfm edel.carb.Oh yeah this engine is freshly rebuilt by myself.the T-stat is 180 deg.The radiator is a stock 3 row & i'm running an 16 inch electric fan.I'm wondering if i should go to a mechanical :confused: fan & shroud or a high flow water pump.I dont know, so any help or advise will be very much appreciated.
Nov 9th, 03, 02:56 PM
If it cools going down the road and not at idle or slow cruising it's airflow. How much current or what type of 16" fan do you have. They are as different as dogs!
If you do not have at least 20 amps being drawn by the fan it's not enough airflow. I recommend a Spal or Derale.
Mechanical fans are okay but are out performed by good quality electric fans all the time. You could try the stock shroud with a Derale heavy duty series flex fan 17XXX series only! My 400hp Camaro with air and lot's of traffic cools great with this combination.
Nov 9th, 03, 03:19 PM
Sounds like there is a lack of air flow thru the radiator when the car is not moving. If you have a box fan, set it in front of the car at idle and see if any temp changes occur.
I bought an aluminum "Northern" rad for my 68 from e-bay $170 buy now price and couldnt be any happier with the product. 2 row 1" cores.
I made an aluminum shroud and mounted 2 "11 fans in it. I didnt see 195 degrees all summer. I've built several others for some local guys and they as well, could not believe the results. I believe pulling air accross every square inch of the core of a radiator is a must! If you have your old shroud and fan its worth a shot and may be just enough air to keep it cool at idle.
How is your water flow in the rad at idle?
Nov 9th, 03, 04:42 PM
Thanks for the advise guy's. I'll have to check the litterature on the fan to see what kind of amperage it is pulling.Also i have not check the water flow at the rad yet either . I had the rad rodded and flushed before installing it.I guess i should still check the flow.Anyway thinks again ,i'llget back to you on what i find. smile.gif