Dif. coolers for TT?

[MachUno]

I noticed quite a few of the TT guys running the IRS are installing rear diff. pumps and coolers. Is that really necessary since a typical TT session is 15 minutes long?

 

[bob]

Mandatory! Overheat warning 3 laps

 

[MachUno]

Mandatory! Overheat warning 3 laps

Alrighty then! wow.

 

[1 old racer]

the 1st session maybe I can get a full session. but 2nd and so on, a diff cooler is a must. Check out my install vid.

 

[MachUno]

the 1st session maybe I can get a full session. but 2nd and so on, a diff cooler is a must. Check out my install vid.

EXCELLENT WORK! Thanks so much for posting this. Absolutely a great way to go.
slightly disappointing though. with a handle like “1 old racer” I was expecting to see a walker, a sun visor and the same old race story 3 times! lol

 

[flyhalf]

Here is my experience.
I run TT with my mustang with the 10speed.
For some reason 10speed protect better the diff. But this is the truth abouth rear diff cooler. I mean for the TORSEN.
1. Overheating Is track related. Some track are harder on the diff than other.
2. Sessions. If you have 2 hrs between sessions. You DO NOT NEED A COOLER.
3. For 3 laps you DO NOT need a diff cooler.
4. Tip :after your session. Bring with you a leaf blower. Lay behind the car. Poor some water in front of the blower while activating it. And spray the diff. This will drop easily up to 100f. You can also increase efficacy of the method pairing it with a little fan.
5. If ypu plan to build PACE and go longer you DO NEED A cooler. FTB builds a nice kit.
Hope this help
Ale

 

[MachUno]

Here is my experience.
I run TT with my mustang with the 10speed.
For some reason 10speed protect better the diff. But this is the truth abouth rear diff cooler. I mean for the TORSEN.
1. Overheating Is track related. Some track are harder on the diff than other.
2. Sessions. If you have 2 hrs between sessions. You DO NOT NEED A COOLER.
3. For 3 laps you DO NOT need a diff cooler.
4. Tip :after your session. Bring with you a leaf blower. Lay behind the car. Poor some water in front of the blower while activating it. And spray the diff. This will drop easily up to 100f. You can also increase efficacy of the method pairing it with a little fan.
5. If ypu plan to build PACE and go longer you DO NEED A cooler. FTB builds a nice kit.
Hope this help
Ale

Absolutely. Thanks so much.

 

[trackdao]

Here is my experience.
I run TT with my mustang with the 10speed.
For some reason 10speed protect better the diff. But this is the truth abouth rear diff cooler. I mean for the TORSEN.
1. Overheating Is track related. Some track are harder on the diff than other.
2. Sessions. If you have 2 hrs between sessions. You DO NOT NEED A COOLER.
3. For 3 laps you DO NOT need a diff cooler.
4. Tip :after your session. Bring with you a leaf blower. Lay behind the car. Poor some water in front of the blower while activating it. And spray the diff. This will drop easily up to 100f. You can also increase efficacy of the method pairing it with a little fan.
5. If ypu plan to build PACE and go longer you DO NEED A cooler. FTB builds a nice kit.
Hope this help
Ale

Well taken, Ale, thanks! I do track days (4 x 20min sessions) with yes 1-2hr breaks here locally in So CA. I'm really interested to jump into a GT PP2 and will get the FTB or MMR very soon, but what about exhaust wrap in the meantime, how much does that help?

 

[MachUno]

Great question. I was wondering that too. I put my Iphone with Harrys Lap timer in the center console once during a session and it got so hot it shut down!

 

[flyhalf]

It doesnt do much. The leaf blower technique (poor cold water in front of the blower and spray the diff for 1-2min) helps dramatically.
I feel u may start to suffer before with engine oil temps especially in the hot days. Pp1 and pp2 dont really change a lot. A tought.
Not sure pp2 extra cost is worth it IMO. Is just a slighty different magnaride calibration amd bigger tires.
Wheels and tires that u would buy anyway to run a pure square set up to be able to rotate them. (Pp2 has same tire size but different offset so no option of rotating wheels)
Magnaride is nice but in the future with more exo u may upgrade to coilovers anyway..
Just food for thoughts.

Well taken, Ale, thanks! I do track days (4 x 20min sessions) with yes 1-2hr breaks here locally in So CA. I'm really interested to jump into a GT PP2 and will get the FTB or MMR very soon, but what about exhaust wrap in the meantime, how much does that help?

 

[trackdao]

It doesnt do much. The leaf blower technique (poor cold water in front of the blower and spray the diff for 1-2min) helps dramatically.
I feel u may start to suffer before with engine oil temps especially in the hot days. Pp1 and pp2 dont really change a lot. A tought.
Not sure pp2 extra cost is worth it IMO. Is just a slighty different magnaride calibration amd bigger tires.
Wheels and tires that u would buy anyway to run a pure square set up to be able to rotate them. (Pp2 has same tire size but different offset so no option of rotating wheels)
Magnaride is nice but in the future with more exo u may upgrade to coilovers anyway..
Just food for thoughts.

And you guys use 75w140, does it matter which brand is best, Redline, Ford MS, Motul?? Anything to help before my first ACS day in Jan Feb although nice it will be cooler temps!

 

[flyhalf]

I use oem fluid.
U will be fine especially the first times. Speed will not be the fastest also autoclub with the ling straight kimd of cool dowm things.
Ps. We are at buttonwillow tomorrow if you want to come.

 

[trackdao]

I use oem fluid.
U will be fine especially the first times. Speed will not be the fastest also autoclub with the ling straight kimd of cool dowm things.
Ps. We are at buttonwillow tomorrow if you want to come.

I will be at ACS first event 2022, might run Button on 18th on wait list, in my RB 240Z. Will look for you in Jan..

 

[flyhalf]

I will be at ACS first even 2022, might run Button on 18th on wait list, in my RB 240Z. Will look for you in Jan..

Join us with ONGRID. This is where we run SUPERGTCUP too. Great dynamic group.