NSD991

Sorry but I’ve searched to no avail. I’ve read before on this forum about removing some of the aero elements under the car to assist with increase downforce. I’ve angled the rear wing with the leading edge lower than the rear (see attached pictures ). Also for those that have made these adjustments any real world feedback? Thanks in advance.

Stock setting

Adjusted for increased downforce

NSD991

If I recall removing the screw on aero elements by the wheel under the car is the answer. Didn’t know if made a noticeable difference.

Hams955

The 991.2 3RS has four levels of adjustment for downforce. The factory sets the wing at the 2nd lowest position or 2nd most rear downforce.

The front undertray has the lower blocks in place similar to that on GT4. You should remove them if you go the higher angle of attack to balance the car.

I have my car set on the highest angle of attack on the rear and the aero blocks removed.

So far I find the car is well balanced. I am also running canards/gurney on my car. I am going to dial out some camber out of my car; I am running a little more than my 991.1 RS and I don't think it needs that much based on they way my tires are reading and stiffer springs. I am going to back off to around -2.8 rear and -2.6 front.

- Chris.

NSD991

Awesome, thanks so much.

KREUL

Which parts of the front undergrad do u remove? The front center, two sides in front of the wheels, or all three?
Thanks.

KREUL

I think I just found the small blocks u referred to.

Z06

what do the blocks look like. Any pictures.

awew911

The blocks in front of the wheels. Two screws. It affects the airflow going into the wheel well. Also remove the screens for the fender vents. two screws.

Clearly for. both instances, be sure to put the screws back to their originsl holes.

Kobalt

My 991.1 wing, modified by Manthey.

Wind911

Is it possible to remove these parts without jacking the car up? My car has FAL.

And what size are the screws?

Thanks, (Going to Spa tomorrow)

Izzone

It might take 30 seconds a side

It's a torx screw

wareaglescott

Did they actually modify it by making more adjustable positions or do you mean they just changed the setting to one of the factory provided options?

Kobalt

Modified for more angle.

Hams955

I doubt you would have enough clearance to get to the lower blocks. The screens cannot be removed without the wheels off.

C.J. Ichiban

If you really want more downforce you have to lower the front of the car so less air gets underneath it