.2GT3 mechanical LSD info - 6MT
06-21-2017, 11:42 AM
#31
Rennlist Member
I don't understand why they are making this retrograde move other than if the firmware for the e-diff is imbedded in the PDK controller. In which case it is hard to justify a stand alone controller development for a car that will not account for more than 30% of global sales of a very limited model. In any case what this really says is Porsche doesn't expect and will not equip the manual GT3 to challenge the PDK variant on the track, no matter how skillful the driver with a manual.
Yeah, so the e-diff reduces the locking in order to brake the inside rear wheel on corner entry (without reducing the locking of the LSD, the braking would also be transferred to the outside rear wheel).
There's some info here:
http://www.porsche.com/usa/models/91...-ptv-ptv-plus/
There's some info here:
http://www.porsche.com/usa/models/91...-ptv-ptv-plus/
Yep. Diff material might as well have been made of paper towels. Anyone tracking seriously upgraded, like myself, to a gaurds diff.
(I quoted myself because you are all lazy bastards and don't read the whole thread- LOL!)
07-02-2019, 06:34 PM
#33
Rennlist Member
Thread Starter
Time to bump this thread. After starting to dial in my setup with stiffer suspension, and full monoballs everywhere, I feel like the car could use a tad more LSD lock on decel (and a bit more on power).
The car does seem to have some slight "tail wag" now under some heavy braking conditions, especially on stickier tires. Anybody else starting to notice this?
I had stopped by the Holinger booth at PRI to see if they or Drexler has anything in the works, similar to how Holinger released their gearsets for the GT4 a few years back. They told me this 6-spd is a brand new design that won't work with any existing products, so it would be a development project, but they were supposedly going to look at it.
Guard told me they have no current plans to offer anything. Bummer, since 50% of the GT3's in the USA are 6spd, and will eventually need an upgrade similar to the told tried-and-true 40/60 Guard setups for the 997's. Upgrading the ramps and/or friction rings in the stock housing would be most ideal, just like we used to do on 997's. Its was very cost effective and easy to re-install, as it didn't require any shimming, or measurements. No need to buy an entire housing, as the stock one should be just fine.
Hopefully somebody will get their hands on a 6spd box soon to see what can be "upgraded". Definitely an untapped market!
The car does seem to have some slight "tail wag" now under some heavy braking conditions, especially on stickier tires. Anybody else starting to notice this?
I had stopped by the Holinger booth at PRI to see if they or Drexler has anything in the works, similar to how Holinger released their gearsets for the GT4 a few years back. They told me this 6-spd is a brand new design that won't work with any existing products, so it would be a development project, but they were supposedly going to look at it.
Guard told me they have no current plans to offer anything. Bummer, since 50% of the GT3's in the USA are 6spd, and will eventually need an upgrade similar to the told tried-and-true 40/60 Guard setups for the 997's. Upgrading the ramps and/or friction rings in the stock housing would be most ideal, just like we used to do on 997's. Its was very cost effective and easy to re-install, as it didn't require any shimming, or measurements. No need to buy an entire housing, as the stock one should be just fine.
Hopefully somebody will get their hands on a 6spd box soon to see what can be "upgraded". Definitely an untapped market!
Last edited by Mvez; 07-02-2019 at 07:05 PM.
07-02-2019, 06:38 PM
#34
Nordschleife Master
07-02-2019, 10:09 PM
#35
07-03-2019, 08:54 AM
#37
Rennlist Member
Thread Starter
The LSD upgrade for the GT4 was easy because it utilized an already known unit, so Guard was able to offer one quickly. For the GT3 it will require one of these manufacturers to get their hands on a 6-spd LSD/gearbox and develop something, either new or from existing parts.
Nobody knows for sure until somebody cracks one open. It will come, the question is when?