Guys I posted a day or two ago about my tranny cooler. I was wondering how to install it.

Well I did not get too many if any replies.

So tonight I decided to get it done.

I pulled the fan shroud and pulled the condensor radiator up out. Took me about 15 minutes to get to that point.

I took some measurements and decided to mount it right on the condensor radiator in front of the aux fan.

I carefully slid a allen wrench through the condensor radiator to spread the fins enough to allow the plastic ties to go through.

Everything went perfect. Had all the ties and the cooler secured in about another 15 minutes. Lower the condensor back into position and then redrilled the Aux fans mounting holes about 2 inches further out.

Secured the Aux fan through the new holes and just zip tied the lower mount to a braket that afforded itself very nicely.

I did not run the lines yet, but once I get it on the lift it should be a piece of cake.

I still have to reassemble the shroud, but it wasn't hard at all. I though I would have to fab up braket and stuff.

The unit is held on very tight with the ties I bought from summit.

Now I have to return and see what I need to do with the temp guage.

Also what line is what. I think the directions I got say the lower tranny line is the supply to the radiator. The top if the return from the radiator. What are your thoughts. I was gonna let it run to the existing cooler. Out to the new cooler, then back to the tranny. I will put the temp guage on the first return to the radiator. That should give a good reading of tranny temp. Right?

Thanks guys!

 

Those are high-temp, severe-duty ties, I take it? Lord knows those cooler fins are sharp little things...

Good job, good post.

 

I don't know which line is the supply and which is the return but somebody on here knows for sure and will probably answer this. I want a tranny cooler and am curious about this as well. TTT. :cheers:

 

Well the last time I did not get a reply when I asked.

Shhhhhh! I will use reverse psychology.

boy kyvette90. hope noone answers our request for the information.....

Sorry all...In a weird mood tonight, maybe that is what happens when you have to wait 6 days for your freakin company to make up its mind as to whether you have a job or not. unreal. Maybe it the first signs of going postal! No vette, no job, getting married in a week, could be some trend forming!

Thanks all. I'm sure someone will let us know too. :smash:

 

[What are your thoughts. I was gonna let it run to the existing cooler.]

I am runnung my existing cooler as well. It works great with both coolers. I think the lower line is the inlet line, so I ran my aux cooler in-line from the bottom of the radiator.


[I will put the temp guage on the first return to the radiator. That should give a good reading of tranny temp. Right?]

That sounds correct.

:cheers:

P.S. You can see pictires of the oil/tranny cooling system in an earlier post: http://forums.corvetteforum.com/zerothread?id=335660


[Modified by mj_duell, 7:55 AM 7/16/2002]

 

If you goal is to lower trans temps as much as possible, then take the fluid after it has been through the radiator and run it through the cooler. If you are trying to take the load off the radiator to keep engine temps down, do the opposite. To find out which line is which, disconnect both lines and turn the engine over. You'll see which line is pressurized and which is not.

Temp gauge needs to measure the highest trans temp. So put it in the high pressure line coming out of the trans. It won't be as accurate if you mount it near the cooler.

 

Guys, maybe I was not clear on the question. Thanks for the comments so far. I want to come out of the tranny, into the existing radiator, then to the cooler. Which line is it that is the *hot* line coming from the tranny. The top or bottom?

Tranny is not in the car so turning it over is not possible. Want to get everything set up so I can just install tranny.

Thanks all.

 

Bottom line is output from tranny.

 

:cheers:

 

On my 86 the top line will pump out trans fluid if you disconnect it. That's the way I changed my trans fluid.

 

Strange, I just pumped my 96 out using the bottom line.

 

I think the bottom is the out to cooler (off the tranny). So I will leave that one as is. Disconnect the top line off radiator. Insert new adapter in rad. Run that line to new cooler then off other side of new cooler to old *top* line.

I will then have the normal cooler, bring temp down some, then Aux cooler really chill it up. Then back to the power mill.

Does anyone know what size the fittings are on the radiator. Think I remember them being around 1/4 NPT. Does that sound right?

Thanks.

 

Another good reason to plumb both the radiator and the new tranny cooler together is that in cold weather, it helps the tranny fluid get up to temp quicker. You know that beautiful day in Feb. no snow or ice, dry roads, but 10 below.......

 

Thermodynamics 101 Please :D

Actually just looked it up in the 1995 Redbook.

The upper driver side radiator coolant hose is the (hot) inlet from the engine, the lower passenger side hose is the (cooled) coolant return to the engine.

Likewise the upper passenger side transmission cooler fitting is the (hot) inlet from the tranny, and the lower passenger side fitting is the (cooled) return line to the tranny.

They design it this way so the cooler return coolant is in contact with what goes back to the tranny. :D

 

Will it be set up the same on the L98s?