- Location
- Roanoke VA
I have fought with this problem long enough. 1996 AW4/NP231, 4.88 gearing
My engine runs cool, never overheats. The tranny runs cool on the road but as soon as I get in stop and go or I'm crawling along a trail it gets too hot.
I have tried both the tube and fin Hayden(30,000GVWR RV cooler) and the stacked plate Hayden(30,000GVWR RV cooler) both were run 2/3rds to the pass side. I have a ZJ fan clutch and factory electric fan.
I think its just not getting enough flow across it. I'm looking at a Derale cooler, 26" long, that I can mount on the front of the cross member and behind/protected by my Logans winch bumper.
I have a B&M tranny temp gauge with senders on the inlet/outlet of the cooler to check its efficiency. The past coolers have worked okay but 220* on the downstream side is unacceptable to me. If its reading 220* on the downstream I'm usually getting 260* at the inlet of the cooler. This is in moderate weather, mid-high 80's.
This is the cooler I'm looking at;http://www.summitracing.com/parts/der-13266/overview/
It will get flow from the fans pulling and the wind off the road surface.
Thoughts?
Short of finding room for a cooler/fan combo(good luck there huh!) I really do not know how to get this thing to cool any better than what I have tried.
My engine runs cool, never overheats. The tranny runs cool on the road but as soon as I get in stop and go or I'm crawling along a trail it gets too hot.
I have tried both the tube and fin Hayden(30,000GVWR RV cooler) and the stacked plate Hayden(30,000GVWR RV cooler) both were run 2/3rds to the pass side. I have a ZJ fan clutch and factory electric fan.
I think its just not getting enough flow across it. I'm looking at a Derale cooler, 26" long, that I can mount on the front of the cross member and behind/protected by my Logans winch bumper.
I have a B&M tranny temp gauge with senders on the inlet/outlet of the cooler to check its efficiency. The past coolers have worked okay but 220* on the downstream side is unacceptable to me. If its reading 220* on the downstream I'm usually getting 260* at the inlet of the cooler. This is in moderate weather, mid-high 80's.
This is the cooler I'm looking at;http://www.summitracing.com/parts/der-13266/overview/
It will get flow from the fans pulling and the wind off the road surface.
Thoughts?
Short of finding room for a cooler/fan combo(good luck there huh!) I really do not know how to get this thing to cool any better than what I have tried.
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