[cdb95z28]

Originally Posted by sr71bb

OK CORRECTION!!! It appears that my A10 uses ONLY the parallel cooler and DOES not have a line that goes to the radiator. This is more efficient since the AT line doesnt have to go thru a radiator that is being pre-heated by hot water.

The SAFE temp levels for BOTH AT Fluid and Water are about the same or around 220 degrees. The HIGHEST I have since water temp even on a VERY HOT track day is around 212 degrees and that is PRIOR to me installing my hood vents. ON day to day driving, the hood vents appear to make about a 5 degree REDUCTION in water temps.

The hottest I have seen though with tranny temps is around 250 degrees and that SPECIFICALLY is the reason for the change to the ZL1 tranny cooler.

I will post up the MAX temps that I see on both after this weekends blazing hot SCCA Time trials on Saturday.

My '22 SS 1LE A10 does have two ATF coolers, one of which is in the radiator. The cooler you replaced is considered the auxiliary cooler. See pic below on the GM diagram for the A10 cooling components.

But, nice upgrade to the ZL1 cooler!

[lt4camaro]

Originally Posted by Dynamical

Interesting! I'll be looking at my A10 in a few wks. I'll see if mine came with it. I would rather it NOT have

Take a good look, there are no lines from the cooler to the radiator.

[cdb95z28]

Originally Posted by lt4camaro

Take a good look, there are no lines from the cooler to the radiator.

Defining my pic from the above post, it most certainly does.

Within the blue box, pipe #13 connects the aux (plate) cooler, component #12, to the bottom of the radiator. This connection is not shown in "View A" but it is clear in the upper view. GM does this on their diagrams to not muddy the waters.

Within the red box we see that the other end of the piping system, component #1, connects to the radiator at the top.

I studied my '22's piping system to look for a way to do a full fluid exchange. My notes of the fluid flow are at home but all of the components on the diagram match my car.

[Joshinator99]

Originally Posted by cdb95z28

Defining my pic from the above post, it most certainly does.

Within the blue box, pipe 13 connects the aux (plate) cooler to the bottom of the radiator. This connection is not shown in "View A" but it is clear in the upper view. GM does this on their diagrams to not muddy the waters.

Within the red box we see that the other end of the piping system connects to the radiator at the top.

I studied my '22's piping system to look for a way to do a full fluid exchange. My notes of the fluid flow are at home but all of the components on the diagram match my car.

I’m 99% sure my ‘17 A8 is the same way. Radiator first, then to the lay down aux trans cooler.