Prospective 981 GT4 Owners Discussion Forum.

[Zyp]

E

Mermaid said:

I think we need to start a new thread " Searching for Mr Demon's perfect car & roads".

I'm pretty certain neither of those exist ;-)
it'd be a long, boring thread....

[av185]

isaldiri said:

av185 said:

Re the Mac 12c, personally I find it 'detached' as a driving experience.....similar to a 911 TTs. 458 and not necessarily a Speciale would get my vote.

As detached as every other modern highly electronically heavy car.... as the 991 gt3 is.

Most cars in this performance category can feel detached due to electronics. But my comparison with the TTs was clearly down to both not benefitting from n.a. ......unlike the 458 and GT3.

[Trotmant]

PorscheGT4 said:

is "1st world problems" a forum saying these days, it meaningless and annoying when so many people post it.

[ChrisW.]

Though the 12c in particular has very very little turbo lag.

It is ferociously fast --- but much less "in your face" than equivalent F cars ---

And so clever, in all weathers.

Some would say it's a shame that the Iris 1 system is so poor, --- others would say that the driver should never notice

And all for the price of a 997 GT3RS !

[PorscheGT4]

Mermaid said:

I think we need to start a new thread " Searching for Mr Demon's perfect car & roads".

I own the perfect car , I just need a run about ;-)

[ChrisW.]

BMW i3 ??

[itsybitsy]

what about a dacia sandero!

[ChrisW.]

I was being serious

The "unexceptional" petrol-head would be amazed at how much fun an i3 can be at mere mortal speeds !!

[jackwood]

So much BS in this thread...

Can anyone confirm if the diff in the GT4 is electronically controlled or if it's just a regular plated/clutched LSD?

[PorscheGT4]

I already have the class winning mini hot hatch :-)

[fioran0]

It's the same mechanical LSD setup as per the previous cars. It's designed to sit in behind the electronics of the PTV which amongst other things apply the rear brakes to mimic the behaviour of a traditional LSD.

[jackwood]

fioran0 said:

It's the same mechanical LSD setup as per the previous cars. It's designed to sit in behind the electronics of the PTV which amongst other things apply the rear brakes to mimic the behaviour of a traditional LSD.

Thanks Neil. I assumed that was the case as the lockup figures are so low. But the wording make it sound like a true e-diff.

I guess this is going to eat through rear brakes on track then

[PorscheGT4]

you turn PSM off, it will be fine on track

[paralla]

Some interesting technical info on the PCA Video here.

https://www.pca.org/news/2015-08-11/video-pca-spot...

[R1nur]

paralla said:

Some interesting technical info on the PCA Video here.

https://www.pca.org/news/2015-08-11/video-pca-spot...

Wow - even more info than the first Evo video. Thanks for the link and good to get back on topic!

[jackwood]

PorscheGT4 said:

you turn PSM off, it will be fine on track

Even with PSM off the Torque Vectoring and braking assistance for the diff will still be active. Both of those will be eating brake pads. Turning off the PSM may help a little but it's not going to help the car using the brakes while you're trying to accelerate and corner.

[acey81]

jackwood said:

PorscheGT4 said:

you turn PSM off, it will be fine on track

Even with PSM off the Torque Vectoring and braking assistance for the diff will still be active. Both of those will be eating brake pads. Turning off the PSM may help a little but it's not going to help the car using the brakes while you're trying to accelerate and corner.

The GT4 is over-tired, so I doubt it will be much trouble for most drivers.

[iantr]

jackwood said:

Even with PSM off the Torque Vectoring and braking assistance for the diff will still be active. Both of those will be eating brake pads. Turning off the PSM may help a little but it's not going to help the car using the brakes while you're trying to accelerate and corner.

Sounds like you've identified a critical flaw. You'd better let the guys at Weissach know.

[PorscheGT4]

jackwood said:

Even with PSM off the Torque Vectoring and braking assistance for the diff will still be active. Both of those will be eating brake pads. Turning off the PSM may help a little but it's not going to help the car using the brakes while you're trying to accelerate and corner.

keep your 996 GT3 then !

[EricE]

acey81 said:

The GT4 is over-tired, so I doubt it will be much trouble for most drivers.

Torque vectoring has nothing to do with traction loss. It brakes the inside rear wheel on corner entry to help turn the car in. Obviously it does affect brake longevity, just one more reason why I wouldn't choose PCCB for a track car.