The diff is not overheating but the ITCC, this air duct will do nothing.

 

I concur.

 

Hmmmm, what is your specific qualifications to make this comment. I'll admit I only have 19 issued US patents but they are in medical devices, not automotive engineering. I assume you are an automotive engineer or a race engineer?

 

Hmmmm, what is your specific qualifications to make this comment. I'll admit I only have 19 issued US patents (William C Benavitz), but they are in medical devices, not automotive engineering. I assume you are an automotive engineer or a race engineer?

I can vouch for qeinfinity. The itcc is what engages to send power to the rear differential, when it reaches a certain temp (can't remember the number) it disengages completely and limits the car to two wheel (front) drive mode. I also don't believe the rear diff temps are monitored, while the itcc housing temp is monitored by a sensor that bolts to the housing.

My qualifications are having had the 2wd mode warning appear multiple times at the track as well as having read some basic information about the itcc that explained what was happening. I do not have any patents.

 

Mine include having watched thousands of hours of Scotty Kilmer content 🧐 how long was shipping??

 

Got it from Royal Body Kits. I believe they are in Spain. I ordered it on line and used PayPal just in case. Took three weeks from the order date and cost about $165 with $40 of that shipping costs.

 

The diff may get hot, but I haven't heard of it "overheating." Additional cooling is certainly a good idea, regardless.

The ITCC unit, however, is documented and data logged to have repeatable overheating issues that trigger a FWD-only mode. There's still debate over what exactly causes it, friction of the clutch plates, heat from the electromagnetic coil, radiant heat from the exhaust, or radiant heat on the sensor body itself. Probably a combination of these. Any mitigation will help. Also, turning VSC off has also shown to help reduce overheating, but I can't remember where I saw that.

 

All slipping clutches generate heat, it's just simple conservation of energy. You transmit the same amount of torque through the coupling (pretty much) and the power input and output has to be lower if you have nonzero slip.
It's just that Toyota didn't engineer a good heat rejection solution. There's basically no heat rejection going on.

 

Someone is trying to get doxxed. All those medical patents and still does not understand how the internet works.

 

We can be civil and petty. I'd like to think this community wouldn't stoop that low.

 

Google "Dunning Kruger Effect". It sums this guy up perfectly.