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06-27-2004, 04:06 PM
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#1
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Regular User
Join Date: Dec 2003
Location: Philadelphia, PA
Posts: 177
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Saleen.... how much downforce?
hey guys...
i saw on msn Tv.. that the saleen has enuf downforce going at 165mph to go upside down... isnt that really like not true?
want ur comments..
i saying this becaue the max downforce enzo produces is about 950 kg, compared to its weight of 1395kg...
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06-27-2004, 04:19 PM
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#2
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Regular User
Join Date: Jun 2003
Location: Canada
Posts: 5,337
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This is an old argument. THere is a thread somewere on this forum. Make a search. I say its not possible.
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06-27-2004, 04:45 PM
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#3
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Regular User
Join Date: Nov 2003
Location: France
Posts: 5,373
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Yes, already seen something similar too here 
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06-27-2004, 11:46 PM
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#4
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Regular User
Join Date: Sep 2003
Location: Ann Arbor, Michigan, USA/ Bloomington, IN, USA
Posts: 2,624
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It's possible...just because the car doesn't look like it can produce the same kind of downforce the Enzo can, that doesnt' mean it can't. Underbody aerodynamics play an enormous role in the that, and I wouldn't be surprised if it produces as much if not more than it's own weight in downforce at 165mph. If so, then it could certainly run upside-down at that speed.
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me-- "Sometimes you feel like a nut, sometimes you don't. Sometimes I feel like the moon is made of cheese"
my Hindibonics-speaking Indian roommate--"Dawgs, do you have any idea how much bacteria that would take?"
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06-28-2004, 02:29 AM
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#5
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Regular User
Join Date: Dec 2003
Location: Toronto
Posts: 4,252
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alot of cars can do this (sticking to the road upside down) the problem is building a road that can do this, the switch has to be so fast (instantly) for it to work, so it would be very hard to prove so in the real world.
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06-28-2004, 12:56 PM
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#6
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Regular User
Join Date: Jan 2004
Location: Detroit
Posts: 9,929
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alot of cars can do this (sticking to the road upside down) the problem is building a road that can do this, the switch has to be so fast (instantly) for it to work, so it would be very hard to prove so in the real world.
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not at all, it could be as gradual as you wanted it to be. you would just have to be steering crazy to do it tho.
also, prudicing 50 pounds up vs 50 pounds wanting to fall means it would have no real control, since it has near 0 friction with the surface.
it would be safer to go faster then the minimum speed nessisary for net weight vs. downforce
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06-28-2004, 03:22 PM
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#7
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Regular User
Join Date: Sep 2003
Location: Ann Arbor, Michigan, USA/ Bloomington, IN, USA
Posts: 2,624
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You're right nthfinity, you can certainly have a road with a gradual switch to inverted, as once the car is producing enough downforce to outweigh the weight of the actual vehicle, then you could most certainly drive upside-down. The problem, as you said is that in order for the vehicle to be controllable, the amount of downforce must actually be significantly more than the weight of the vehicle at rest, whereas at the threshold, where the two forces would be equal and opposite, in essence you'd have "neutral bouyancy" and the car would not really be in touch with anything. My guess is that with the Saleen, you'd probably need to be going something in the neighborhood of 190-210mph in order to maintain contact with the surface of an inverted road and also be controllable.
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me-- "Sometimes you feel like a nut, sometimes you don't. Sometimes I feel like the moon is made of cheese"
my Hindibonics-speaking Indian roommate--"Dawgs, do you have any idea how much bacteria that would take?"
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07-05-2004, 03:54 PM
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#8
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Regular User
Join Date: Dec 2003
Location: Florida,USA
Posts: 594
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Well I know the Enzo only produces about 1709 lb of downforce at 185 mph, and the Saleen produces about its bodyweight at 160 mph. I am not sure how much the S7 weighs exactly, but if those figures are right, the Saleen's downforce is way more than the Enzo's.
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07-05-2004, 09:36 PM
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#9
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Regular User
Join Date: Jan 2004
Location: Michigan
Posts: 1,537
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Originally Posted by mit5005
Well I know the Enzo only produces about 1709 lb of downforce at 185 mph, and the Saleen produces about its bodyweight at 160 mph. I am not sure how much the S7 weighs exactly, but if those figures are right, the Saleen's downforce is way more than the Enzo's.
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the new 2004 version of the S7 weighs about 2750 lbs according to fast-autos.net
so ya, thats insane downforce :shock:
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07-05-2004, 10:02 PM
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#10
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Regular User
Join Date: Apr 2004
Location: Bellevue, Washington
Posts: 3,694
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wow that is A LOT of downforce
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07-06-2004, 12:07 AM
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#11
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Regular User
Join Date: Jun 2003
Location: Texas
Posts: 15,413
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What reputable journos have done a full road test of the S7?
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07-06-2004, 12:10 AM
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#12
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Regular User
Join Date: Jan 2004
Location: Detroit
Posts: 9,929
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What reputable journos have done a full road test of the S7?
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Road and Track, Car and Driver... those are the only two i have anyway
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07-06-2004, 12:14 AM
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#13
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Regular User
Join Date: Jun 2003
Location: Texas
Posts: 15,413
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Originally Posted by nthfinity
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What reputable journos have done a full road test of the S7?
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Road and Track, Car and Driver... those are the only two i have anyway |
LOL - I said reputable.. 
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07-06-2004, 09:24 AM
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#14
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Regular User
Join Date: Sep 2003
Location: Ann Arbor, Michigan, USA/ Bloomington, IN, USA
Posts: 2,624
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I can't remember but I seem to recall reading a little blurb about the S7 in either CAR or Autocar magazine, but whichever it was, it was not a full, instrumented road test unfortunately.
__________________
me-- "Sometimes you feel like a nut, sometimes you don't. Sometimes I feel like the moon is made of cheese"
my Hindibonics-speaking Indian roommate--"Dawgs, do you have any idea how much bacteria that would take?"
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07-06-2004, 04:27 PM
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#15
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Regular User
Join Date: Dec 2003
Location: Florida,USA
Posts: 594
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Originally Posted by RC45
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Originally Posted by nthfinity
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What reputable journos have done a full road test of the S7?
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Road and Track, Car and Driver... those are the only two i have anyway |
LOL - I said reputable.. |
You don't think Road and Track or Car and Driver are reputable? I always thought they were.
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