any updates DR MOAB. Cant wait to see pics
ron davis also makes an XJ radiator...hmmm
I did a full upgrade to the cooling system as I read a lot of people had issues with this. First I picked up a 3 row all metal from outlawradiator.com and then I picked up a flowkooler water pump from Summit Racing. I also picked up a new thermostat housing from napa. Then all new hoses and a 180 degree thermostat. I took the thermostat housing and opened the inside up with a die grinder to make a custom high flow. I then flushed the cooling system that was going to be replace. Then started the tear down. I got all tore down and then read about the exhaust. So I picked up a new header that I wrapped with copper high heat resistant wrap from Summit Racing. I then installed all the parts and put a new gator back belt in and fired it up. Man so worth the money I now run about 180-185 and around 205-210 slow crawling and all with just the mechanical fan running. If I kick the electric fan on I run back down to about 200 crawling along. The exhaust wrap got rid of a ton of heat under the intake and made a huge change in the fuel economy. I went from 15-17 mpg to now about 17-24 mpg. I did all of this for not to much cash.:yelclap:
Operating temp on an XJ is 210 degrees, put a 195 thermostat in it. I don't believe for a minute that upgrading your cooling system gave you 7 mpg.
If you got a 7mpg increase than you must have had issues and fixed them...which is possible. Like Flexed said, put a warmer thermostat in it. Anything below 195 or so and your computer is not running in a closed loop. This means your computer is telling the engine to run rich and you are burning more fuel than you should.
I got my champion installed along with two factory 97+ electric fans. So far, so good. The only time I've had to turn the second electric fan on is pulling hard while going slow with the ac on full blast. On the hwy I can leave it off.
I got my champion installed along with two factory 97+ electric fans. So far, so good. The only time I've had to turn the second electric fan on is pulling hard while going slow with the ac on full blast. On the hwy I can leave it off.
here ya go...
http://www.naxja.org/forum/showthread.php?t=1025399&highlight=fan+ride+switch
"Anything below 195 or so and your computer is not running in a closed loop. This means your computer is telling the engine to run rich and you are burning more fuel than you should."
that's not a true statement.
the ecm will go in closed loop, reading the o2 sensors for fuel mixture, looking at the engine temp, as well as intake air temp, throttle postion...ect to make the needed adjustments, before 195* is reached.
How did you wire the second fan? I want to get rid of the mech. fan on mine. You happen to have a link to the thread for wiring an e-fan to a switch. I can't seem to find it.
The 2 row unit is $144 compared to the 3 row which is $199. I am thinking I should just get the 2 row since it is still all aluminum, a little cheaper, and I am in urgent need of a radiator. What do ya'll think?
Anything below 195 or so and your computer is not running in a closed loop.