68 Camaro Cooling Issue

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  #1  
Old 08-19-2017, 02:10 PM
mattnday's Avatar
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Default 68 Camaro Cooling Issue

After 2 years fo work I am finally driving the car a lot and my only real issue is I am running pretty warm.

Normal driving even when hot outside I am averaging 185 on the highway and closer to 205 driving city stop and go. With real heavy stop and go it creeps up even further.

I did a parade recently that wasn't moving and I even overheated.

My setup is a cheap 3 core radiator with 2 fans from EBAY during the resto and it is not cutting it.

I know I need a shroud at the minimum and probably a pusher fan. Unfortunately the radiator I bought online does not have a matched shrowd.

I have a 350 manual transmission and vintage air.


Any suggestions on how to proceed as I want to fix this issue once and for all.

68 Camaro Cooling Issue-img_2664.jpg
 
  #2  
Old 08-19-2017, 03:07 PM
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I'd ditch the electric fan for a clutch fan and shroud.
 
  #3  
Old 08-20-2017, 06:56 AM
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I agree with Y2K. I bought electric fans and a shroud to match my radiator. first time I took it out I made it 6-7 miles the temp went to 235
brought it home junked the fans and shroud, went with a derale 6 blade heavy duty stainless flex fan and stock shroud. I also added a top and bottom filler panel. had it out last weekend going up a 9% grade for 8 miles with the ambient temperature at 90*.
the engine got to almost 180*
just my 2 cents
 
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Old 08-23-2017, 09:10 PM
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Originally Posted by flat tire
I agree with Y2K. I bought electric fans and a shroud to match my radiator. first time I took it out I made it 6-7 miles the temp went to 235
brought it home junked the fans and shroud, went with a derale 6 blade heavy duty stainless flex fan and stock shroud. I also added a top and bottom filler panel. had it out last weekend going up a 9% grade for 8 miles with the ambient temperature at 90*.
the engine got to almost 180*
just my 2 cents

What size fan did you use ??
 
  #5  
Old 08-24-2017, 05:18 AM
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Originally Posted by sptrucksbyed
What size fan did you use ??

Derale 18" Heavy-Duty, Stainless Steel Flex Fan, Black Hub - Belt Driven - 10,000 RPM

Item # D17018

 
  #6  
Old 08-27-2017, 11:41 AM
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I really like the look without it but don't want the headache

Any suggestions on improved Radiator as I think that is part of the problem also.
 
  #7  
Old 09-04-2017, 09:04 PM
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I had the same issue overheating in traffic. Couldnt find a shroud to fit my radiator so I made my own. It made a world of difference. Temp in traffic never goes above 190F.


 

Last edited by Milan; 09-04-2017 at 09:22 PM.
  #8  
Old 09-05-2017, 09:38 AM
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I don’t know your situations but I have fixed a lot of overheating cars just by installing a shroud. Electric fans don’t not move a bunch of CFM so it is important that the air that is flowing is in the right direction.

Overheating at idle or near idle can be a symptom of a miss adjusted idle circuit or too much base timing. I would make sure everything is right before adding larger cooling system or more fans.
 
  #9  
Old 09-12-2017, 10:02 AM
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I also would look into fabing up a custom shroud, even a little help would be a step in the right direction. What temp thermostat are you running?
 
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