If you read my install of the gm cooler above, I installed it just as GM instructions were
I then was doing a 90-mile Open Road Race in Nevada where weather was 90 F degrees at speeds from 160-180 MPH
About half way distance I noticed out the back solid white smoke blowing like hell
All the gauges reported correctly, but I was pissed and refused to give it up until I crossed the finish line
2 time Indy 500 driver Rodger Ward would put this race on came to me at the awards dinner laughing his ass off saying
2 counties want to thank me as saying I killed every bug in both counties :-(
When I got home I debugged the problem
The pump is a pusher, not puller type
Instructions showed where to mount the pump and there was the problem as the pump was higher than the drain side of the tranny
Thus, the fluid was not getting to the pump, and it's still running caused all the Mobil I Synthetic tranny fluid in front of pump all
the way to the front were cooler was and then pushed back inside the fill side of MN6 manual 6 speed tranny
This caused the tranny to be fluid overfilled, heat and blow out the vent plug that faces up to the underside of the floor and splash than
onto both super hot exhaust pipes and fluid burned becoming white smoke
Here is what the vent looked like, nice and melted
So I did not trust the GM design and found a dual split cooler that can be used as one whole cooler or split so half for tranny and other half for transaxle
I ripped out all GM's cooler, hosing ,etc
I mounted this cooler at the back
Installed a 12-inch fan above it and controlled when it and the pump functioned with a thermal switch set to trip on at 180 F degrees
and also installed a gauge on a pod up front for a temp gauge, so I always know what the tranny temp is
This meant then the tranny cooler lines were very short, where drain of tranny to inflow to cooler and its output then went to the fill plug of tranny as the return
Been like this for like 20 years and works great with no issues
