High-class downforce
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Lexus Test Driver
Joined: Jul 2001
Posts: 936
Likes: 0
From: California
High-class downforce
Like many of the people on this forum, I drive pretty fast. My nickname amongst my friends is Andretti... ok, I drive way over the limit just about everywhere, and when my turbo system is done I want to make sure I stay planted on the ground. But, I don't want a GT wing because I'll get picked out by the cops and labeled a ricer by everyone else. So, what do you guys think I can pull off without looking conspicuous? My friend suggested a 911-turbo style (maybe using some of their stuff) moving wing assembly that moves up a bit at high speed. Anyone ever done anything like that before?
Pole Position
Joined: Apr 2002
Posts: 217
Likes: 0
From: Florida
Haven’t done it but like the concept! Sure would take a lot of research to make it effective. Junkyard 911 might help. Under body -great idea but Mercedes LeMans -flipper! It seems that you’ll have to weigh the down force on the rear with aerodynamics effect on the front, at speed. It’s going to take a lot of math and an in with someone that knows his stuff.
Keep up the thinking...
Keep up the thinking...
Pole Position
Joined: Aug 2002
Posts: 232
Likes: 0
From: PA
Just an idea. I am not a fan of alot of rear downforce (oversteer) but instead love alot of front downforce (understeer). If you put about 4 inches of CF in a front plane and use the metal eyescrews and adjustable screws, you could adjust the amount of downforce. I like the feeling of his and really plants the turns. TOo much downforce will be ineffective and slow you down. Ill try and find a pic of what I mean and if you know anyone who is good with CF let me know because I want one as well.
Pole Position
Joined: Aug 2002
Posts: 232
Likes: 0
From: PA
Yeah thanks Clint. I was in a rush to drive to class and was thinking off the top of my head quickly. If I can find a scanner Ill try to get a pick up. Tried as I might, I couldn't find a pic on the net.
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Lead Lap
Joined: May 2001
Posts: 780
Likes: 2
From: Arkansas
the car is plenty heavy enough. stiffer everything. wider tires. battery relocation. get less chassis movement from torque and get more to the ground. limited slip. trd supra engine mounts. urethane bushings, etc.
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Virtually all factory cars have lift. One way to reduce it is lower the amount of air flow under the car. Lower the car and it will stick better. A good front air dam will also help. Possibly a partial belly pan in the rear (a full pan is best but I am trying to be reasonable 
) could help depending on how the air flows through that area.
) could help depending on how the air flows through that area.
Good to see some interest here in aerodynamics and downforce.
Some people seem to love FWD. Same thing, right?
Originally posted by sc300tt
I can't think of anyone that loves understeer.
I can't think of anyone that loves understeer.
Last edited by Shellhouse; Oct 16, 2002 at 06:52 PM.
Instructor
Joined: Jun 2001
Posts: 1,135
Likes: 1
From: Seattle
How about a Fiero wing?
I know a guy who uses one to great advantage at Bonneville at,uh,higher speeds.The key is to extend the wing rearward a bunch to promote stability.
A big wind-stopper is the firewall on front engined cars,but we're in pretty good shape there,maybe a belly pan like previously mentioned,that extends past the front axle.
To get the air out,and around the fat tires efficiently is good as well.Maybe some vents rearward of the front wheel-arches to get rid of air trapped in there.
I know a guy who uses one to great advantage at Bonneville at,uh,higher speeds.The key is to extend the wing rearward a bunch to promote stability.
A big wind-stopper is the firewall on front engined cars,but we're in pretty good shape there,maybe a belly pan like previously mentioned,that extends past the front axle.
To get the air out,and around the fat tires efficiently is good as well.Maybe some vents rearward of the front wheel-arches to get rid of air trapped in there.
Lead Lap
Joined: May 2001
Posts: 780
Likes: 2
From: Arkansas
You could put a wide wing under the nose, bolted down tight. Put at the right angle, it would just suck the nose down. Would not be obvious, if painted black, but would catch all kinds of bumps. You can make them pretty thin and place them close to the body. I think that is used in various racing circles that have standard body heights.
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