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[Z06] functional real spoiler?
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
functional real spoiler?
are there any tested to be functional rear spoilers? I know carvaggio has a small rear lip/wing but does it actually provide any downforce?
thanks in advance.
thanks in advance.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
Melting Slicks
Joined: Jan 2007
Posts: 3,106
Likes: 7
From: Sandy Ego Ca.
Sorry...I was being a ********...
I have never seen any reports on this...it would be intresting to find out what measuarable effects the current avaliable body bods have on car stability and traction
I have never seen any reports on this...it would be intresting to find out what measuarable effects the current avaliable body bods have on car stability and traction
Advanced
Joined: Jan 2004
Posts: 87
Likes: 0
From: Newport Beach Ca
Melting Slicks
Joined: Oct 2001
Posts: 2,786
Likes: 22
From: Cary NC
Kerry Hit makes functional hardware that is wind tunnel tested.
http://www.corvetteracebodies.com/
The Lingenfelter stuff is supposed to be aerodynamic.
This has been discussed quit a bit in the track section. Go over there and do a search.
http://www.corvetteracebodies.com/
The Lingenfelter stuff is supposed to be aerodynamic.
This has been discussed quit a bit in the track section. Go over there and do a search.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
YES and NO. For a rear spoiler to be functional, it should stick up at a 45*- 50* angle from the deck lidand no taller then 1.5" to provided down force over 80 mph.
The rear spoiler is to 'spoil' the air flow.
Chevy found that the small rear spoiler on the C6Z was just as functional as the full deck width spoiler that is the after market part
The rear spoiler is to 'spoil' the air flow.
Chevy found that the small rear spoiler on the C6Z was just as functional as the full deck width spoiler that is the after market part
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
with my 2" front spilter, 1" rear spoiler and 3/4" wider rear fenders I can take a particular corner at 85 mph vs 70 mph with the same tires.
Now the down side is my TOP speed on a particular road ( track) has gone from 150 mph to 145 mph at the same red line.
The spoilers and splitters provide more down force, but also more aerodynamic drag and limits top speed.
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Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
The info on Kerry Hitts ( ACP ) web site is very good.
Pro
Joined: Jan 2007
Posts: 626
Likes: 2
Close.
with my 2" front spilter, 1" rear spoiler and 3/4" wider rear fenders I can take a particular corner at 85 mph vs 70 mph with the same tires.
Now the down side is my TOP speed on a particular road ( track) has gone from 150 mph to 145 mph at the same red line.
The spoilers and splitters provide more down force, but also more aerodynamic drag and limits top speed.
with my 2" front spilter, 1" rear spoiler and 3/4" wider rear fenders I can take a particular corner at 85 mph vs 70 mph with the same tires.
Now the down side is my TOP speed on a particular road ( track) has gone from 150 mph to 145 mph at the same red line.
The spoilers and splitters provide more down force, but also more aerodynamic drag and limits top speed.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
The car is faster on straight WITHOUT the spoiler and splitter. but slower in corners.
the car is much faster in corners WITH the splitter and spoiler. Overall lap times are quicker as most road course are high speed turns and corners, not long straights.
My next aero aid would be an extractor hood.
Melting Slicks
Joined: Feb 2005
Posts: 2,087
Likes: 4
From: granville mass
[QUOTE=AU N EGL;1563498582]DRAG. Aerodynamic drag from the front splitter and the rear spoiler.
The car is faster on straight WITHOUT the spoiler and splitter. but slower in corners.
QUOTE]
as noted above, your RPM would have to be less assuming you're in the same gear.
yes, aerodynamic drag will reduce speed, as you stated.
mk
The car is faster on straight WITHOUT the spoiler and splitter. but slower in corners.
QUOTE]
as noted above, your RPM would have to be less assuming you're in the same gear.
yes, aerodynamic drag will reduce speed, as you stated.
mk
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
DRAG. Aerodynamic drag from the front splitter and the rear spoiler.
The car is faster on straight WITHOUT the spoiler and splitter. but slower in corners.
the car is much faster in corners WITH the splitter and spoiler. Overall lap times are quicker as most road course are high speed turns and corners, not long straights.
My next aero aid would be an extractor hood.
The car is faster on straight WITHOUT the spoiler and splitter. but slower in corners.
the car is much faster in corners WITH the splitter and spoiler. Overall lap times are quicker as most road course are high speed turns and corners, not long straights.
My next aero aid would be an extractor hood.
You can't be going a slower MPH at the same RPM..... Drag will cause your car to not be able to power to a higher RPM at top speed.
What gives, dude?
Melting Slicks
Joined: Sep 2005
Posts: 2,307
Likes: 32
From: Trabuco Canyon CA
Uh, the only thing that can change an RPM:MPH relationship is gearing. Are you running a track wheel/tire setup that is a different diameter than before? That would change your gearing.....
You can't be going a slower MPH at the same RPM..... Drag will cause your car to not be able to power to a higher RPM at top speed.
What gives, dude?
You can't be going a slower MPH at the same RPM..... Drag will cause your car to not be able to power to a higher RPM at top speed.
What gives, dude?
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
The Caravaggio spoiler might actually provide some downforce without creating too much drag. The reason I say possibly is because originally these spoilers, front and rear, were designed by John Cafaro, who designed the C5 Corvette, while he was working on the car itself. He decided to take the designs private, I guess GM wasn't going to market them. He then sold all the molds to his "skunkwerkes" pieces to John Caravaggio, who now sells them under his own name. I followed the progress of these parts since the time when Autoweek first featured John Cafaro's customized cars while he was on the Vette project. I have both the rear spoiler and the front canards on my Z06.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Uh, the only thing that can change an RPM:MPH relationship is gearing. Are you running a track wheel/tire setup that is a different diameter than before? That would change your gearing.....
You can't be going a slower MPH at the same RPM..... Drag will cause your car to not be able to power to a higher RPM at top speed.
What gives, dude?
You can't be going a slower MPH at the same RPM..... Drag will cause your car to not be able to power to a higher RPM at top speed.
What gives, dude?
Tires were the same. Too busy at that point to look at the tach.
Burning Brakes
Joined: Oct 2001
Posts: 983
Likes: 23
From: Northeast Ohio
Just a note on rpm/mph with downforce.
If you make enough force to compress your tires you'll go a little slower at the same rpm.
Now it might be so little it's hard to measure, but the circumference of your tire will actually be based on the distance from the axle centerline to the ground, which can change some.
If you make enough force to compress your tires you'll go a little slower at the same rpm.
Now it might be so little it's hard to measure, but the circumference of your tire will actually be based on the distance from the axle centerline to the ground, which can change some.