Quote Originally Posted by ScarabEpic22 View Post
Very true, but I want make sure I can tow 6600lbs up the mountains in the NW in the summer with 0 problems. Maybe Im just paranoid, but even with the stock mechanical fan clutch on my 02 it starts to overheat in 100F weather towing 4000lbs up a 10mi grade of about 3-5% grade. Its a hill that all the RVs always overheat on and cars have cooling issues in the summer.

Also, GM did extensive testing on the TrailBlazer platform and found they could not get an efan setup to cool all the time so they were forced to revert back to a mechanical clutch setup. Fullsize trucks have larger radiators which helps alleviate this problem and GM couldnt shove a big enough one in our trucks to make it work.
I understand there Erik and agree , on certain applications , maybe e-fans are not the best , but to generalize that all e-fans are not good for towing is a incorrect assumption . When dealing with e-fans CFM is key , there are a lot of e-fans that produce more CFMs than their mechanical counterparts , so a e-fan with greater or equal to CFMs can replace a mechanical fan with out any degradation to performance . So I hear !