Berra

These spoilers aint got sh*t on Veyrons

"02996ttx50

maybe but dont you need two keys to get them properly up and running

Berra

Actually, second key makes the spoiler go down to "topspeed-mode". Handling-mode is when the wing is fully up

"02996ttx50

didn't know that! and not sure i'll ever need to.. but thx for that

911 Rod

The question is .....if the hydraulics are broken.
Do you choose all the way up or down?

DaveCarrera4

If the hydraulic fluid (Pentosin) can leak out (into your engine bay or down your back bumper), the individual ram will fail down due to a VERY STRONG spring inside. Then the wing is cocked and not straight. Ask me how I know...

911 Rod

That is what has happened, but no fluid leak at all. You can push the side that did not go down with a little force.

Macster

When the spoiler in my 2003 Turbo started acting up and showing signs of fluid leakage I elected to leave the spoiler down.

For one thing the spoiler wouldn't go up right, it wouldn't go up evenly. For another thing with the spoiler up the spoiler hydraulic system is under considerable pressure which would just continue to force fluid out. The Pentosin fluid used in the spoiler is not nice fluid to have leaking out.

So I rinsed the spoiler hardware and engine compartment to remove any leaked fluid then pulled the fuse that controls the spoiler operation.

At speed the spoiler would not deploy, But if I did reach deployment speed a warning light and message would appear.

Also, the fuse also was for the engine compartment latch so with the fuse removed I was unable to open the engine compartment.

I drove the car this way for a while, a few weeks, then booked the car in to have the spoiler system replaced when I decided this was for me the best way to go compared to the other options.

996tnz

I have looked around pretty hard and only found the same net figures for 996T downforce, with that 9kg rear gross. I wanted to know the actual downwards pressure the wing produces so that I could work out whether shelling out for a gurneyflap/wickerbill would be worthwhile (about 20% extra downforce for minimal drag). That was years ago and I'm still to find the actual figure. Maybe there's an engineering student out there who can test it with a load cell?

Even when up, our low mounted wing is actually dual acting and is probably best described as a wing-spoiler. The first aero component is the downforce of the wing itself with its angle of attack (it looks shallow but air is dropping at an angle off the rear screen). The second is its interaction with the rear of the car and how much it helps air break away cleanly (the spoiler effect).

FWIW, I noticed the handling difference once at 70 MPH when I raced the car with the wing removed (hydraulics problem, since repaired). Wasn't subtle either - a 100 yard 4 wheel drift through a long fast sweeper, followed by a 420 degree spin . I'm pretty certain that going in too fast by the best part of 10 MPH had a lot more to do with it (was distracted by a following Cup car), but I almost saved it and still can't help wondering if a working wing would have helped me pull it off...

If anyone does know how much the pure wing component of the downforce is (or has done a before and after total downforce reading while adding a gurney flap), please do let me know.