Since the last post, my cooling system upgrades only took about a weekend. Still in the midst of the 3.73 swap which turned into a disaster. But I'll post up the cooling stuff anyway!
To start, let's compare sizes and remind ourselves why I'm doing this! Towing my trailer into the Sierras with all my gear in 95 degrees ambient has pushed engine temps into the 230's. Not what I like to call fun.
I knew that I was going to bypass the oil cooler that built into the aftermarket radiator. I don't trust this design even from the factory, let alone in the aftermarket. So I will be fitting an auxiliary oil cooler run with AN lines. First step is to lay out positioning and trim the fan shroud to work. I'm being conservative with shroud trimming, since after all, the more holes I put into the shroud, the more paths air can escape around the radiator where I don't want it. (I want air to pass through
the radiator not around it)
Unfortunately I don't have any pics of the trans cooler, but that will be set up in the same way as the oil cooler. Instead of AN lines, they will be soft hoses with barb/clamp fittings.
The next step is to adapt the OEM hard oil cooler lines to AN. OEM hard oil cooler lines are 1/2" OD, which adapt to -8 AN. These adapter pieces are all standard off the shelf on Summit Racing or your local speed shop.
Last step was to mount the radiator, which uses the same mounting locations as OEM. The new oil cooler mounts to the radiator with E-fan ties. Then, the braided AN lines can be routed to the OEM hard lines, which tie into the oil filter plate per factory. Take great care to route lines clear of the fan and pulleys!
Apologies for blurry photos.
My only worry is how close my AN lines come to the main crank pulley. They're firmly positioned, so they won't vibrate or otherwise find their way to contacting the pulley. But if I have a belt failure, it will likely take out the oil lines. However, belt maintenance is a pretty standard thing, so that kind of failure should be avoided anyways.
And finally, test drive! Took the rig out to an old campsite in the Sierras that I used to hit that got burned out in a recent wildfire. Even in a barren landscape, there is beauty.
Towing in 95 ambient, engine temps struggled to reach 210 degrees. I think it's running too cold
now, I would like to see 210 regularly. So I may change up to a hotter thermostat.