Maxi_z

I think I saw somewhere the porsche document with the actual downforce number in oem configuratio or track configuration can anyone let me know the link for that document?

A/S

I have a Porsche GT2RS document with lots of technical information.

The picture below is for the GT2RS at 211mph, the .2GT3RS produces even higher downforce numbers, this is what Porsche published:

.2 GT3RS:
Standard Aero Setting: 750 lbs
Race Aero Setting: 992 lbs (max rear wing and removed front tabs). I also removed the inner fender grill for a little extra downforce, a trick from race teams, and only documented for street cars by SRT on the Gen5 Viper ACR.

These numbers are for the GT3RS are at 186mph.

The .2 GT3 produces 342 lbs at 196mph (a little over 300 lbs at 186mph).

The 991 Touring produces just 110 lbs at a higher 199mph (under 100 lbs at 186mph).

DaveGordon

I was talking to a couple of guys from Manthey and asked them about this. They said they don’t remove them for 3RS. Not beneficial they said..

Spyder75

Yes thats exactly what they did to my car. They take the grill out of the front arch and leave the insert in. On the 2RS they take it out though..

EST

"Not beneficial to remove them" Question is, what are the benefits of keeping them ?

DaveGordon

It sounded like yes, removing them would give more downforce at the front, but there wasn’t a way to balance it with more downforce at the rear.

EST

This is weird because Manthey is turning the rear wing to max and even more. They drill an extra "hole" in the rear wing attachment for an even larger angle.
So the rear downforce is like "max + 1"

miky360

Do you have more documents for other cars? Maybe something for the 991 Turbo? It’d be a good comparison to finally see some actual figures