I have the Caravaggio winglet on my car and I think it helps generate down force. However I don't think it really does anything except look nice at speeds below 120mph. I also have the canards on the front which I think are more helpfull than the winglet.
My car on the left and earlier incarnation of Tony3331's car
__________________
Ed Gibson 2001 Black Z06 64 & 68 Corvette verts
1985 BMW K100 m/c
Be careful, this car already has too much lift in the front, so you don't want to "push" down on the rear without some downforce on the front.
I ran small Kinard (sp) front and rear - created about 100#'s of downforce (ea) at 100 MPH, just about perfect - car was a LOT more stable at 150+ - on the track.
LGM or MTI Racing in Marietta can hook you up.
Les
__________________ [sold] 02 QS Z06 383 c.i.
441 RWHP 445 RWTQ, FLP Long Tubes & GHL Quads, 42# Injectors, LS1 Edit Tuning, Vararam w/T1 C. F. Bridge, Vinci 170 Stat, Ripper Shifter, Lowered and Tinted
Balancing rear with front downforce is crucial. In addition, you may need to change spring rates due to the additional downforce. Topspeed may also decrease due to the added drag. You also need to determine what wing angle works best for a given setup, track and track conditions. This is further influenced by tire choice and numerous other variables.
These are just a few examples of what needs to be taken into account. It isn't simply a matter of adding a rear wing and calling it good.
I have received lots of flak about my adjustable boxwing, but I have balanced its downforce with a DIY Lexan splitter (see other posts re: DIY Lexan Splitter).
The boxwing is supported with: Lexan sheet to strengthen the hatchlid, and removable aluminum supports within the trunk bay that transmit the downforce directly to the frame.
What I have found is that on short twisty track courses, I can use both vanes of the wing and adjust them more agressively. But on longer tracks, say Road America, I remove the upper vane altogether as the bottom one smooths out the car just fine.
The only answer is:
IT DEPENDS...
What speeds are you achieving?
At 150mph, there is approx. 50# of frontend lift on a stock Z06; put a wing on the back and create MORE rear downforce, you also INCREASE front lift by changing the attitude of the car, unless you run mega-rated springs, and even THOSE will settle some...
And aero changes can happen exponentially with MORE speed...
If you're gonna do the "wing thing", better think about the front as well. THAT was why we went with the full ACP front splitter/ rear wing(with adjustable height wickerbill) package, as it was developed with Corvette Racing's assistance and then wind tunnel-verified, and is a SYSTEM, not just random pieces...
Ricer be damned, it's ALL about "control"...or, lack of it...
With 600 rwhp, ours in capable of serious speed...best achieved with all four tires firmly planted...
__________________ PowerPro01 sez "STAY TUNED"................ GarettO's the SigGod! "NOTHING Matters...until you CARE..." Bob Gibson If RACING was EASY, they'd call it WINNING ! Anonymous
agree with power pro, I am in the middle of the wing install on my car, (same wing Lou is running on his C6 GT car). I am just learning about the delicate balance that has to be made for everything to work in harmony.
I already have the front splitter from ACP and the side skirts, have to go back out to Kerry to get a custom under pannel built for the car because of the supercharger and radiator set up. Then I fine tune the LG coilovers I am running make sure I am at the best ride height to do some high speed driving. Doing the Bull Run rally this year as well as a few pocono events and the texas mile.
Lots of test and tune in my future though I am sure.
One of the critical factors, here, is the aero of the car is best kept with the 1/2" or so rake built into the standard body/suspension. That's why when lowering, you need to maintain that 1/2" or so tail-up attitude.
IF you add downforce to the car, it NEEDS to be equally distributed, front-to-rear-to-front, to maintain that ideal 1/2" REGARDLESS of speeds and their attendant changes to the car caused by speed-induced downforce (Or, if you mess up, the dreaded lift). And the greater the speed, the more importance this issue merits...
It's ALWAYS a good thing to have four tires well connected to the ground...
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Yeah Mike...one of the design criteria is that the wing has to be strong enough to support the weight of a pony keg of beer and its tap...
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