[OahuBrew]

Just wondering if this is a such a big issue and is this why I am seeing more available? I'm in the desert and it gets roasting out here may have to pass :-(

 

[TurboGT]

It only happens on certain track scenarios. Some people have reported certain open courses not causing the issue, but are speculating that tracks with more/tighter corners where you are accelerating out of at lower speeds are causing the issue to happen.

It'll probably never happen if you daily drive or canyon cruise it.

 

[NolaPoizn]

Several companies already have ducts that funnel air onto the clutch packs and rear diff. Could be an easy solution to that problem.

 

[racer01]

Not a street driven car issue.
Seems to happen when driven aggressively on a road course track by a decent driver who can push the car hard and seems highly related (aggravated?) to using 30:70 mode which of course makes sense as it clamps those rear clutches tighter for more rear bias.

Seems the sensor is quite conservative to trigger fwd mode as well as the sensor possibly seeing elevated temps contributed by the hot exhaust nearby which is why wrapping the exhaust or adding some airflow seems to help. A fix to address fluid capacity or external fluid cooling seem to be difficult to implement which makes the issue appear (to me) to be fundamental to the design and without a proper engineering fix (yet).

Again, not an issue in any kind of street driving I can imagine save for repeated hooligan doughnuts in 30:70 mode or something in that category of hooniganism.

 

[noogie]

Overblown like everything you read on the internet.

It’s a street car, not a hardcore track car, as much as Toyota would like to advertise it as such.

 

[GR_Johnny777]

If your looking for a great track car, a car that's easy on the consumables get yourself an ND Miata, or the new Civic Type-R for that matter.
Remember the old saying.... Miata is always the answer.
Plus, living in the desert do you really need an all-wheel drive car?
I don't think you get much rain or snow.
Whenever you're thinking about purchasing an all-wheel drive vehicle, think about the World Rally Championship and the conditions the cars drive in.
They're primarily on wet, snowy, gravel slippery conditions where an all-wheel Drive drivetrain comes in handy.
Living in the desert you're mostly going to have a clear dry warm race track, and city streets, so all wheel drive in my opinion would not be necessary.

 

[izaglo]

I recently posted this elsewhere but have any members had there clutchpacks overheat from normal street driving.?

 

[Jeonsa]

I recently posted this elsewhere but have any members had there clutchpacks overheat from normal street driving.?

Not so far on here.

 

[GRavel]

think about the World Rally Championship and the conditions the cars drive in.
They're primarily on wet, snowy, gravel slippery conditions where an all-wheel Drive drivetrain comes in handy.

This weekend’s Rally Mexico begs to differ, and Kenya, and Greece, and Portugal, and Sardenga, and Chile…

 

[almazing]

The more rear biased the torque distribution is, the more slipping the clutch pack does. The more slipping, the more heat is generated. On track, keep it at 50/50. On the street, it doesn't matter because if you're going fast enough to overheat the clutch pack on public roads, you'll either lose your license and/or wreck the car eventually.

 

[Jeonsa]

This weekend’s Rally Mexico begs to differ, and Kenya, and Greece, and Portugal, and Sardenga, and Chile…

Yeah but then again Toyota doesn’t use this AWD system when they rally. Lol.

 

[almazing]

Yeah but then again Toyota doesn’t use this AWD system when they rally. Lol.

Not for WRC. Everything is bespoke for that class. It's like the F1 of dirt driving. But if the GRY can get homologated for Rally2 where the rally cars are based on production cars, Toyota may use it. I'm curious to know if the GR Four as we know it will be used in Rally2 guise. It certainly won't be a stock one. Very likely a beefed up, more controllable, and cooled version of what we get on our production cars. Or maybe something else entirely if the rules allow it.

 

[GRavel]

Yeah but then again Toyota doesn’t use this AWD system when they rally. Lol.

Nope, but AWD (and FWD) cars are a blast on dry gravel roads at much safer speeds than they are on tarmac. AWD is definitely not just good in the snow and wet. ;-)

 

[Raaaaay]

I have a feeling there will be a tsb if enough people continue to have the problem. It'll just be a flash to expand the temp to when the warning comes on. The car is just too scarce

 

[Jeonsa]

Not for WRC. Everything is bespoke for that class. It's like the F1 of dirt driving. But if the GRY can get homologated for Rally2 where the rally cars are based on production cars, Toyota may use it. I'm curious to know if the GR Four as we know it will be used in Rally2 guise. It certainly won't be a stock one. Very likely a beefed up, more controllable, and cooled version of what we get on our production cars. Or maybe something else entirely if the rules allow it.

They just use a different variation of the engine for rally 2. The AWD is different.

after doing research on the whole homologation rule thing before the Rally1 rule change, it’s basically the structure that’s the important piece, rally2 they asked special permission for the 3 banger.

Now the GR Corolla has the same AWD and engine for the most part in super Taikyu with no real issues.

 

[Jeonsa]

Nope, but AWD (and FWD) cars are a blast on dry gravel roads at much safer speeds than they are on tarmac. AWD is definitely not just good in the snow and wet. ;-)

Can’t argue with that!