Engine temps.

[Jackpine]

Originally Posted by 408F150

I hit 235 on my TFT gauge towing my toy hauler (was dry and weighed around 6500#) home from LA when I first bought it. This was going up the grapevine in southern cali in 95* heat with 3.73s on 35" tires. I've since upgraded to 4.56s and haven't seen it go about 208 (and now when I tow it's loaded and closer to 8000#) . I purchased a Troyer trans cooler but I'm having a hard time figuring out how to mount and plumb it I'm sure it will help even more

I have the Troyer dual e-fan and they have kept my ECT to 208 max, so they seem to help a LOT when towing. If anyone is having engine temp problems I highly recommend them or a similar setup. The wiring is daunting which is the only downside to them. I build custom in-home movie theaters and it even gave me a few head scratching moments.

Also, if you're running a constant 200* TFT, that seems a little on the high side. Even with just my stock cooler I'm usually between 165 and 180 during average interstate towing.

I'm in the 150-170 TFT range on the interstate with my stock 3.73 gears and stock 32 inch tires too. With 35 inch tires, you were really "undergeared", probably an effective ratio of around 3.40! To get back the "stock" performance, you needed about 4.10 gears and going to 4.56 gears has really made it easy on your transmission. I'm pleased to see how much effect that had.

What are you doing for load leveling/equalizing?

I'm interested in all this because of another member's situation (his screenname is TXWolf), and he's pulling a similar load. You two may want to talk. I'm going to direct him to this thread, because I think he could use some help, and, I think you can give it to him.

I'm sorry I don't have any idea about having two coolers in series being bad. There WILL be a pressure head drop, but is it unsafe? I don't know. 06KingRanch seems ok with it. Any "Techs" out there who have an opinion? And, I'm sorry I don't know anything that would help you mount and plumb the new cooler, 408.

06KingRanch, please feel free to give TXWolf some thoughts too.

You two are the experts, by virtue of experience!

Maybe we need a "Towing" forum!

- Jack