so with the newer and larger oil cooler installed.it's July and as hot as it gets.i had chip truck loaded with white pine wood and brush rakings along with the dump trailer full of white pine.i decided to turn my fans off (i have an adjustment in cab) to see if my engine would get too warm.
i drove about 40 miles home today in upper 90F temps without a need for engine fans.the highest the temps got was 220F and i saw a quick spike of 225F on the steepest and longest grade.
though i was watching the temps like a hawk nervously while running this test,i didn't need to be.i was surprised as all get out.all it took was airflow.grabbing a cup of coffee the truck heated up just as high as when i was hauling.
so......if you ever need more engine cooling for your idi,aim for the heart.attack her oil.she'll run much,much lower coolant temps if you do.the larger the aux air, oil cooler,the more impressive the results of course.with a t-stat in the oil lines i don't have to worry about over cooling in cold temps.
just wanted to share the results of the new,larger cxracing oil cooler.
caution! i do not recommend trying to run your idi truck without engine cooling fans in high heat,even running empty!!!!
i have electric cooling fans,and indicator of their speed,and full control of them on the fly for testing.this was a very controlled test.
Had her loaded up now in July again.This time with fresh cut red oak.Very,very dense and heavy wood.Had the bed and dump trailer full.
E-fans worked on high speed for a minute or two on the hills! I don't see this happen much anymore.Max coolant temps 230F......That can still be under oem
mechanical clutch engagement.Max trans temps 210F.
I dunno what I was grossing and probably wouldn't want to know lol but it had to be near max GCVWR of the truck.
With an intercooled banks and bull moose,I actually had to let off her on the grades.She would climb them.......we'll just say "fast"
but according to the EGT's I had to back out and even fed her manual 2nd gear w/ 3k+ rpms to drop the temps.
If I had to haul this heavy very often with this truck,then I would of course ditch the 3.55's and go with 4.10's not for more power but to help aid in reduced exhaust temps but I've got an F450 to use too.I just need to install a good reliable trans in that truck now so I can take her anywhere worry free again.
Anywho,this large aux oil cooler,though expensive to setup has been worth it's weight in gold in this truck.
OK it looks like gross was likely around 19k here boys.She took that in stride considering.Most of the time she's just around 14-16k with chips and the chipper and takes that like a boss.
Reman trans going in the big truck this week.
airflow is free energy as im going down the road anyway.im just putting that airflow to good use by keeping the oil cooler,thus keeping coolant cooler,thereby requiring much less alternator power to run e-fans.even while at 15k gross,pulling grades,it really has drastically taken a load off my radiator.it's just about being able to work the engine hard and require less effort to keep it running cool.
