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Old 11-01-2013, 01:05 PM   #1
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So I have a 1992 porsche 968 with an ls2 conversion. It's a fun car that will soon be a track day car. I'm running a porsche 944 turbo radiator. It appears it's just a bit too small. Has anyone run a second radiator off the heater core ?
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Old 11-01-2013, 05:31 PM   #2
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I ran the 944 turbo radiator without any issues with a ls1 in a 944. might check your pcm fan temps, and or other issues before you go to changing radiators. just my .02
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Old 11-01-2013, 07:35 PM   #3
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Funny you ask this... Today I went to my local radiator shop to talk with them about this same subject. I have a Lamborghini Diablo replica with a LS4/4t65ehd and run two rear radiators and it seems that my setup just quite isnt not enough in the 100+ degree summer months. I about to add a turbo and finish the a/c so I need to possibly add a 3rd radiator.

The answer I got was yes, depending on the location/size of the extra radiator the guy said I could expect to gain additional cooling. I have about 3 different locations/setups on my car that I could do, I just need to figure out what would be most effective....
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Old 11-02-2013, 12:22 AM   #4
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incidentally my heater core in my lsx powered 911 is a small radiator, so yes it can be done. but again I would check your pcm cooling temps. was the 944 turbo radiator new or used? what size fan or fans, temp switch operating properly, air in the line, kinks in the hoses, so on so on.. ls engines are not that hard to cool. just check all your perimeters. just trying to be helpful
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1993, 968, conversion, ls, ls1, porsche, swap

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