Pressure in trans cooler lines

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Apr 5, 2006 | 02:36 PM

Sliding

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Drifting

Joined: Jun 2001

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From: Zagreb, Croatia

Pressure in trans cooler lines

What is max pressure in trans cooler lines?
I'm planning to install additional trans cooler so while I'm at it
I'd like to install new lines to heve everything neat and tidy.

Apr 5, 2006 | 04:35 PM

JoBy

Melting Slicks

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From: Timra, Sweden

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Last edited by JoBy; Apr 6, 2006 at 03:16 AM.

Apr 5, 2006 | 04:51 PM

Ramanstud

Melting Slicks

Joined: Oct 2002

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From: Cincinnati Oh

I know the internal valve bodies get up into the 200PSI ranges, but I would guess the coolant line would be low - around maybe 10-20psi? Just enough to circulate fluid. I think I ran the tranny with an open line to pump out fluid (briefly) and it was not that quick.

You want to use the high-end (300psi rated) hoses though so they'll put up with the heat and last.

Apr 5, 2006 | 06:25 PM

Mr6spd

Burning Brakes

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Quote:

Originally Posted by Sliding

What is max pressure in trans cooler lines?
I'm planning to install additional trans cooler so while I'm at it
I'd like to install new lines to heve everything neat and tidy.

After it goes through the cooler, the fluid returning to the transmission then is fed into the trans bearing lube circuit. So the pressure certainally is not near zero, but I don't know how high it is.

Apr 5, 2006 | 10:02 PM

Da Mail Man

Safety Car

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greetings,

on an 88 auto, which line would be the input to the radiator cooler from the trannie and, which is the return to the trannie?...thanks!

Apr 5, 2006 | 10:33 PM

Ramanstud

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From: Cincinnati Oh

when looking at the trans, the bottom line is "out" or to the bottom of the cooler.

The top line is thus "IN" to the transmission (ie the return) and would come out of the top of the radiator also.

Apr 5, 2006 | 10:39 PM

Da Mail Man

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Quote:

Originally Posted by Ramanstud

when looking at the trans, the bottom line is "out" or to the bottom of the cooler.

The top line is thus "IN" to the transmission (ie the return) and would come out of the top of the radiator also.

thanks for the reply...that is what i thought. i run a 185 t-stat so, this summer i may put in a cooler as i had in my 81 before the radiator which may "stabilize" my h2o temps by running a bit cooler (not that they are far out of line or any trash around the radiator).

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