75sv1 Posted October 2, 2020 Share Posted October 2, 2020 There is a MOPAR Extreme Duty radiator for the XJ. It is made for ME export. I have run the Evans coolant. The temps will be higher. Evans told me that more heat is being removed. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted October 3, 2020 Author Share Posted October 3, 2020 15 hours ago, 75sv1 said: There is a MOPAR Extreme Duty radiator for the XJ. It is made for ME export. I have run the Evans coolant. The temps will be higher. Evans told me that more heat is being removed. Even the Mopar Middle East radiator was only a 2 core 1.5” thick (2x3/4” cores). The Novak is 3” core with no tranny cooler provision. I’m just not sure you could get the condenser in place. Interesting info on the Evans. So basically if you runs Evans coolant you need more radiator capacity it sounds like. Link to comment Share on other sites More sharing options...
75sv1 Posted October 5, 2020 Share Posted October 5, 2020 On 10/2/2020 at 11:03 PM, ghetdjc320 said: Even the Mopar Middle East radiator was only a 2 core 1.5” thick (2x3/4” cores). The Novak is 3” core with no tranny cooler provision. I’m just not sure you could get the condenser in place. Interesting info on the Evans. So basically if you runs Evans coolant you need more radiator capacity it sounds like. Not to my knowledge. The coolant just transfers the heat better. In my application, a '75 Bricklin, I noticed temps went up when going over 55 mph. Yes, back in them days. Then went down after 1/2 hour at 55 mph. I use ZO-5 coolant in my XJs. Supposedly you can mix it at 75% for extreme heat. I have not tired it. I run about 208 F and might peak to 215 F. I'm in the Mid West so not an extreme environment. Link to comment Share on other sites More sharing options...
boxyjeep Posted October 5, 2020 Share Posted October 5, 2020 I'm running a Mishimoto all aluminum radiator. It's massive. Can't see anything doing better than that. Link to comment Share on other sites More sharing options...
75sv1 Posted October 5, 2020 Share Posted October 5, 2020 4 minutes ago, Chargum85 said: I'm running a Mishimoto all aluminum radiator. It's massive. Can't see anything doing better than that. A thread I was involved in, the guy was in AZ. I remember he had one of the early Mishimoto's. It reduced his temps a lot. I asked what his previous rad was. It was a HD MOPAR. Link to comment Share on other sites More sharing options...
PIKE Posted October 6, 2020 Share Posted October 6, 2020 5 hours ago, Chargum85 said: I'm running a Mishimoto all aluminum radiator. It's massive. Can't see anything doing better than that. I would like to hear more about this radiator. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted October 6, 2020 Author Share Posted October 6, 2020 The old Griffin Jeep Speed radiator was a 3” core. The only thing similar nowadays that I’ve come across is the Novak. The Jeep speed crowd would probably have more info on options. Link to comment Share on other sites More sharing options...
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