Why did you run that one up?
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Got this all done today. Ended up going with hydraulic hose. Had to do a little bit of thinking to utilize what NAPA had and what I needed, had to utilize some of the old hardline to use the original bushings at the trans. Wanted to do the braided stainless or clamped on hose but I just don’t like not being able to hold onto the parts before I buy them. Turned out pretty good I though. Took a lot more fluid than I expected.
Here in texas, in my shop at least.... i remove the trans fluid "warmer" on the block. Down here its already 100* at startup and that junk just heats up the trans temp to coolant temp.
I run all Hydraulic lines, no trans fluid warmer on the block and the thermostat in the trans cooler gets bypassed. my trans runs 100-120 in the winter and 120-160 in the summer, just the way i like it.
a trans rarely fails from being too cold.... overheating is a different story. Anything over 180* is too hot for me. IMO
I also control the trans temp with tow haul and the A/C system to max out the fan clutch.
That looks very OEM. I like it.
You should share the part names you used. Did you crimp them yourself, or buy specific lengths, and then used compression fittings (sorry if you can see them better on a computer, I'm on my cell)
I'm not saying you're wrong, but lots of people have had really good luck using the heat exchanger ('warmer' as you call it) to keep the trans fluid temps in check. I ran without one for a bit and my temps got kinda high, tossed it back on and don't ever seem to have issues now.
I use a lower stall TC, but especially if I was running a 2200rpm or higher TC, I'd really want that feature.
Mine runs a little hotter than I'd like to see, and I'm not quite sure why. It runs about between 172 deg and 186 deg cursing around town and down the highway (according to my Edge anyway). My though with eliminating the cooler behind the block, is that it would run cooler. But I suppose the fluid is coming out of the trans, though the cooler behind the block, essentially cooling it to 190 deg (water temp) and the front cooler is cooling the fluid down ever further. The trans fluid temp sensor is in the cooler behind block, so it would make sense that the fluid is only slightly cooler than operating temperature.
I measure at the pan and when I didn't have the heat exchanger, I went up to 190-200F, tossed it back in there and it's usually around 160-180. I'm a big believer.
The Derale trans coolers are pretty popular too.
https://www.summitracing.com/parts/der-15820?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-derale-cooling-products&gclid=CjwKCAjwj8bPBRBiEiwASlFLFecyJHLnJFzWbp8WTZt6cRihE2-LyIVD-jlFGf3zj_yWZOzSsOlnkRoCsGsQAvD_BwE
The double with fan an tstat is really nice, but pricey.