for you guys with 3rd gens

triton

triton

Scarlet Fever
Joined
May 30, 2007
Messages
5,497
just a FYI if you didn't already know.

I haven't hooked to a sled many time but, before this last pull I was at my water temp gauge would bury in the red ! Wasn't real sure why. Was it cylinder psi, cavitation ??? wasn't sure.

Well, I had been having issue with the auxiliary trans cooler ( pictured below #4 ) leaking because of a boggered up fitting where the trans line connects.

translines2-1.jpg


I decided to removed it completely and install a remote cooler w/fan.....

tcooler2.jpg


anyway.... once I did this, my water temp stayed right where it should ( just under the half mark ) this weekend while pulling. The auxiliary cooler flows coolant and trans fluid in it and as someone mention, maybe my water temp went through the roof because the trans fluid was helping to heat it up in the aux cooler. I'm sure the psi's in the head are pretty higher anyway but, because of this mod I seem to not have the high temp issue anymore. I surely don't have trans fluid all over the under side of the truck anymore either ( I hated that )

I thought this might help others have similar issues :Cheer:
 
good info. i have noticed during a sled pull my water temp goes through the roof. what kind of cooler did you use and what all fittings and line would be needed to do this? thanks
 
I have a six speed and my water temperature usually gets pretty high. Usually though if i let the truck idle up to temperature and turn the heat on when I am pulling I usually don't see above 215 degrees but occasionaly on a hard biting track it will go a bit higher.
 
Good lookin setup Ty.

Not sure if it's the right thing to do, but that is why I chose not to run coolant to the block mounted unit.
 
have heard of this stuff called ice its to help keep your engine cooler it says it would help up to like 40 deg, never used it but it might be worth a try for yall pulling
 
I need to run a extra cooler like that for my trans, after three hard passes down the track, the solenoids start to malfunction
 
Not sure why the trans would make the coolant hot :confused: I've had the block mounted cooler disconnected for the last 60k - I'm only using the front mounted oem cooler with trans pan temps at 170* F. or less - My original problem was heat from the coolant transferring to the trans fluid as it passed through the block mounted cooler.
 
i tried that royal purple purple ice in my radiator last year and it ran about 20 degrees cooler during normal operating conditions but it didnt do chit during a sled pull there has beenmultiple times i have seen 240 degree water temp the good thing is it doent take but a few minutes on high idle and the heater on for it to cool down afterwords
 
Have you ever tried running the heat while you are pulling? Seems to keep my temperatures down a bit.
 
personally, since this removal/install I've not had a temp issue. I can see where turning on the heat would help but, typically it's already hot as hell at the event and that would suck ! I'll try it though if I see the need too next time
 
Yeah your right it is usaully hot as hell but I usually crank the heat right after I get hooked up. Seems to keep the temps down a bit and I can sweat it out for those few seconds if it helps my motor. Also heard running the heater decreases some pressure in the cooling system therefore less chance of blowing a freeze plug but didn't know if there was any truth to this or not??
 
that blocked mounted "cooler" is actually not a cooler at all it is a heater. It is actually meant to pass the warm coolant from the engine and heat up the transmission fluid so that the transmission will shift properly otherwise it would shift like it does when you first drive it in the morning all the time in cold climates. Now dont get me wrong i know yall are gonna say that this is a bad design and that the fluid would eventually heat up on its own and all it does after that is unneedingly heat the fluid and i agree completely. but in climates where it doesnt get over 10 degrees all day everyday they are a must because the tranny would shift like crap all the time cause the fluid would never get to an appropriate operating temp. $.02 :blahblah1:
 
grncummins said:
that blocked mounted "cooler" is actually not a cooler at all it is a heater. It is actually meant to pass the warm coolant from the engine and heat up the transmission fluid so that the transmission will shift properly otherwise it would shift like it does when you first drive it in the morning all the time in cold climates. Now dont get me wrong i know yall are gonna say that this is a bad design and that the fluid would eventually heat up on its own and all it does after that is unneedingly heat the fluid and i agree completely. but in climates where it doesnt get over 10 degrees all day everyday they are a must because the tranny would shift like crap all the time cause the fluid would never get to an appropriate operating temp. $.02 :blahblah1:
Click to expand...


You're correct but, it works both ways.......

The transmission oil is routed through the main cooler first, then the auxiliary cooler where additional heat is
removed from the transmission oil before returning to the transmission. The auxiliary cooler has an internal thermostat that controls fluid flow through the cooler. When the transmission fluid is cold (less then operating temperature), the fluid is routed through the cooler bypass. When the transmission fluid reaches operating temperatures and above, the thermostat closes off the bypass allowing fluid flow through the cooler.
 
SKYNYRD said:
do you have more pictures of how you ran the lines?
Click to expand...

no but, I eliminated all the factory lines and replaced them with 3 -8AN SS lines. Out of the trans to the front cooler, out of that cooler to the remote cooler and back to the trans from there.

The factory cooler on the front of the truck already has a -8 disconnect on one of the lines. The other I cut off and pressed on a AN fitting on to it. The lines are just routed up over the trans
 
Looks like the Derale trans coolers I buy from Garrett at PuredieselPower.com
 
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