1st Tech pack With Trans Cooler!

[Syberspace]

Where is the transmission heat sensor in relationship to where the pump fills the transmission with cool fluid.

My question really is...is the sensor just read transmission temps of fluid that was just dumped into it? Can there still be parts of the trans getting hot and not really receiving cooled fluid, but the sensor thinks the trans is cool base on the sensor being close to where the fluid is coming in?

Does this make sense or am I just over thinking it?

If that were the case, then the temp would rise if it was hotter elsewhere in the transmission and the car was stopped and sitting. I never witnessed that when I would stop.
That said, I imagine you can have some temperature variations across the transmission, but it would not be a large variance.
My max temps were taken when I got back to the pit after the run and the car was idling. I did not see a fluctuation from the track to there.

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[rb92gt]

Transmission Temp Sensor

I learned today that the temp sensor on the tranny does not actually touch fluid, just threaded into a blind hole. I believe this is reassuring that the temp reading is accurate and not just from a "pocket" of cool fluid.

Disclaimer: I have not actually pulled my temp sensor to confirm.

 

[JD350]

For those who have added the transmission cooler ... has anyone had a problem with the differential overheating? Was out on the track a few months ago and there was a 2015 Mustang GT sitting next to me. I was limping because of transmission. He was limping because of differential. It seems like the transmission overheat is the first trigger in the GT350. Once you fix that, it might be a function of the particular track as to whether you have a differential overheat. Any experience out there?

 

[Syberspace]

Not on mine. But I don't think I have a temp sensor in my diff. I changed it after the weekend anyway.

 

[Hack]

For those who have added the transmission cooler ... has anyone had a problem with the differential overheating? Was out on the track a few months ago and there was a 2015 Mustang GT sitting next to me. I was limping because of transmission. He was limping because of differential. It seems like the transmission overheat is the first trigger in the GT350. Once you fix that, it might be a function of the particular track as to whether you have a differential overheat. Any experience out there?

The diff on tech/base cars doesn't have a sensor, so your first indication of a problem could be noise or a failure. You definitely won't get limp from a hot diff.

I only hope that if there's a vent on the diff for tech/base cars, any fluid coming out of it due to high temperatures can't end up under the tires.

 

[GT_Dave]

I have a temperature sensor in the differential on my Tech Pack and the diff temperature stays about 30 degrees lower than the transmission at highway speeds without a cooler installed. That's not much of a reference for track conditions, but it is an indicator that the transmission will put you in limp mode before the differential gets too hot. I am in the process of installing the differential cooler, once that is done I can report some reliable before and after data for a Tech Pack car. But I won't have any substantial data until I get on the track next year.

 

[TonyJ5150]

I learned today that the temp sensor on the tranny does not actually touch fluid, just threaded into a blind hole. I believe this is reassuring that the temp reading is accurate and not just from a "pocket" of cool fluid.

Disclaimer: I have not actually pulled my temp sensor to confirm.

That is correct. it is a blind hole.

 

[boss doc]

Nice job on the install, that is pretty much the way I plan to update mine. Do you plan to add a temperature gauge to monitor the oil temperature?
Also, I'm looking at using the side port on the bottom of the transmission so I can keep the hose off the bottom. I'll need to drill and tap the case, but I think it is a better spot.
Now for the differential.

Get an OBD MX reader from Amazon and sign up with forscan.org. You will be able to enable trans temp reading in the gauge display screen between tach and speedometer.
There is a thread in this forum with detailed how to. I did it and can now monitor trans temp just like track and R cars.

 

[GT_Dave]

Thanks for the tip, but . . . . I did that a long time ago. Now I also have an easy visual backup gauge for trans and diff temps, just like the 2 engine oil gauges on the dash.

 

[earlSpilner]

The pump was $189
Cooler $71
Air duct from track pack/R $80
$250 worth of an-hose, fittings, and adapters.:tsk:
About another $50 for miscellaneous aluminum, nuts, bolts, wire, and a switch.

Do you happen to have the part number for the Air Duct?

Also confirming this CX racing cooler was the one you used (part# OC-608-15-NPT3_4 link: https://www.cxracing.com/index.php?route=product/product&product_id=1031)

 

[earlSpilner]

Never-mind I just found it.

So to confirm the parts you used where:

Air duct: FR3Z8310F
Cooler: CX racing part: OC-608-15-NPT3_4 Overall Size (Includes Fitting Height): 9.75" x 9" x1.5" 15 row (link: https://www.cxracing.com/index.php?route=product/product&product_id=1031 )
Pump: MOC-17522HT or like
Bracket: home made
Wiring: misc. wire and switch for pump.
Hose: 15(ish) feet 8AN braided hose
Fitting: 3/4" to 8AN fitting (x2) to connect cooler to hoses
1/2" to 8AN fitting (x1) hose to trans
3/8" to 8AN fitting (x1) hose to trans

is there anything else I'm missing?

 

[SVTDSM]

Never-mind I just found it.

So to confirm the parts you used where:

Air duct: FR3Z8310F
Cooler: CX racing part: OC-608-15-NPT3_4 Overall Size (Includes Fitting Height): 9.75" x 9" x1.5" 15 row (link: https://www.cxracing.com/index.php?route=product/product&product_id=1031 )
Pump: MOC-17522HT or like
Bracket: home made
Wiring: misc. wire and switch for pump.
Hose: 15(ish) feet 8AN braided hose
Fitting: 3/4" to 8AN fitting (x2) to connect cooler to hoses
1/2" to 8AN fitting (x1) hose to trans
3/8" to 8AN fitting (x1) hose to trans

is there anything else I'm missing?

Your list looks good to me. Don't forget some nuts, bolts, and washers for your brackets. Be sure to use blue lock tight, or nylon lock nuts on all your brackets.

 

[Hack]

Never-mind I just found it.

So to confirm the parts you used where:

Air duct: FR3Z8310F
Cooler: CX racing part: OC-608-15-NPT3_4 Overall Size (Includes Fitting Height): 9.75" x 9" x1.5" 15 row (link: https://www.cxracing.com/index.php?route=product/product&product_id=1031 )
Pump: MOC-17522HT or like
Bracket: home made
Wiring: misc. wire and switch for pump.
Hose: 15(ish) feet 8AN braided hose
Fitting: 3/4" to 8AN fitting (x2) to connect cooler to hoses
1/2" to 8AN fitting (x1) hose to trans
3/8" to 8AN fitting (x1) hose to trans

is there anything else I'm missing?

Transmission fluid.

 

[rb92gt]

Great Info

Thanks for all the good info. Anyone care to share your external pump wiring technique, such as: Relay used with part number? Closest 12 volt source to your pump location? Fuse tap used or something else?

I think a simple switch will suffice, but may use a relay with connection to some sort of thermostatic switch. Wonder if something like this would work: Derale 16759 Adjustable Fan Controller ($52 on Amazon). Obviously this is meant for an electric fan and comes with a radiator probe, but think it would work as well in this application, just need a place on the transmission housing to put the probe, and set it to 150, done!

 

[earlSpilner]

Never-mind I just found it.

So to confirm the parts you used where:

Air duct: FR3Z8310F
Cooler: CX racing part: OC-608-15-NPT3_4 Overall Size (Includes Fitting Height): 9.75" x 9" x1.5" 15 row (link: https://www.cxracing.com/index.php?route=product/product&product_id=1031 )
Pump: MOC-17522HT or like
Bracket: home made
Wiring: misc. wire and switch for pump.
Hose: 15(ish) feet 8AN braided hose
Fitting: 3/4" to 8AN fitting (x2) to connect cooler to hoses
1/2" to 8AN fitting (x1) hose to trans
3/8" to 8AN fitting (x1) hose to trans

is there anything else I'm missing?

Apon further research of the fittings the fitting list should be:
4x 3/4" to 8AN for cooler and transmission
2x 3/8" to 8AN for pump fittings

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