Radiator upgrade help.
CF Veteran
Joined: Jun 2016
Posts: 2,138
Likes: 278
From: Santa Clarita California
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
Did you try the Champion with the stock fans ?
Then tell me what you would do,many friends I know have had good luck with stock ,This radiator and cooling fan setup was not installed by me,the guy I got it from said he was cooling just fine when he had a stock radiator and fan setup,he felt like dropping coin and bought this radiator and fan combo and had cooling issues ever since,I dont think going back to atleast a factory radiator is such a bad idea but I’ll listen to advice and take it into consideration
Last edited by Dzldust; Aug 17, 2020 at 08:44 AM.
Then tell me what you would do,many friends I know have had good luck with stock ,This radiator and cooling fan setup was not installed by me,the guy I got it from said he was cooling just fine when he had a stock radiator and fan setup,he felt like dropping coin and bought this radiator and fan combo and had cooling issues ever since,I dont think going back to atleast a factory radiator is such a bad idea but I’ll listen to advice and take it into consideration
The diagram shows the amps and cfm of each 10” fan,No leaks like some claim to have ,trying to get info on amps that the fans run ,like I said ,I would have researched more before I bough something like this but it’s what’s in the Jeep now and figuring out where to go now with getting this rascal cool,Drove into work this morning about 10 miles without ac on and it stayed at 210,fans come on at 165 and immediately with ac on
Last edited by Dzldust; Aug 17, 2020 at 01:28 PM.
From what I've learned you can expect around 100cfm per 1 Amp free flow rate so those numbers don't look overly exaggerated like some of the ebay junk that's says 1200cfm at 5-6 amps. If that was possible SPAL and the like would already be doing it.
210 is the correct operating temp so when does it overheat?
210 is the correct operating temp so when does it overheat?
I have a 1996 classic 4.0L Automatic on 33s. I Recently installed a new bumper and winch before the winch there was no cooling problems. Now any driving of 55+ for extended time puts the heat to the third notch and on highways for 20 min today it tipped the red. But as soon as I slow down it sits just above 210 again. I am choosing to upgrade the cooling system since it's still the original radiator I will be putting the ZJ fan clutch in as well as good vents. As far as a radiator should I stick with a OEM replacement and of not then what should I upgrade too?
Well I flushed the system a few times ,added distilled water and Radiator fluid and drive about 120miles today With the ac on max and never got over 210,must have been junk fluid or too much anti freeze and not enough water,dunno but it worked .Still have same champion radiator/triple fan combo and 180 thermostat,just changed coolant .we will see .


