performancelaw
Full Access Member
If i run a big tranny cooler with the e4od with a fan. Will I be able to used over drive when pulling a load or am I still asking for trouble ? 45 mph at 2500 rpm hurts bad at the gogo pump.
You must have really small tires or mucho torque converter slip... 2500 is closer to 55mph with 4.11's
Maybe you have 4.56's?
Is your tranmission stock? What about your torque converter?
a few things you should understand.
1. towing in OD is just as safe as towing in 3rd gear.
the clutches are not weaker,and she will kick down WAY before she'll think about lugging.even if you tweak your TPS.
you don't want to let it "hunt" back and forth between 3rd and 4th is all.
anything other than that,is an E40D myth.
2. when the TC locks up after the 3rd gear shift,your trans temps fall,not rise.
3. you should only need a fan on your cooler if;
you drive slow while towing.or you plow.
otherwise you'll find it will never turn on anyway and be wasted $.
4. it's all in the temp gauge.this will let you know what is required for your application.listen to the gauge.pull over and stop if it gets high.resume once cool,then purchase whats required to keep your trans cool (but above 150) at all times,so you won't need to stop and let the trans cool anymore.
since i only plow out the family,i simply just stop when my trans fluid temp reaches 200 degrees.5 mins latter when its around 180,i'll resume.
if i was plowing for money,id still stop and wait for it to cool,OR id get an e-fan for it,so i didn't have to.
either way,the same objective.a trans not allowed to overheat,just as importantly as the engine isn't allowed.
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so I should just install a temp gauge and watch it close ? But say I put the cooler with a fan on it and it got warm. I could control the temp without loosing time on the side of the road right ? What about these bigger tranny pans that claim to help the temp stay lower ? I just don't want to burn the tranny up. I'll be pulling the 5er about 200 miles round trip soon and don't want to do it at 45 but also don't want to burn her up pulling 13k pounds.