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The VIPER Garage  |  Viper Racing Discussions  |  Viper Road Racing Discussions  |  Stamper car video
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Author Topic: Stamper car video  (Read 3036 times)
RTTTTed
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Viper Nation - ezine
« Reply #15 on: July 16, 2013, 01:48:24 PM »

I was looking at the gurney flap on the ACR and the ACRX.  The flap is about opposite between the two.  More flap on outside with one and more flap across middle on the other.  ...
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1999 1200rwhp TT GTS - ART, 2001 Roe sc GTS- (4 sale), 440 Duster restomod (sold), 3x Stealth TTs, 92 Daytona IROC with T3, 580whp/1080wtq Cummins pickup.
shooter_t1
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« Reply #16 on: July 16, 2013, 08:46:52 PM »

According to dodge the acr makes 1000 lbs downforce at 150.
the equation is
df= v² x .04444

Dodge did the hard part in the wind tunnel, i would imagine the ring video is calculated in the same manner that i did.
Since dodge tells us what the car makes at given speeds you can just adjust the equation.
Coupe Viper 100lbs @ 150
df=v² x .00444

My car hasnt been to a  wind tunnel but the wing and splitter are replicas of the 2010 acr design, which probably produce a lil more downforce on the rear. The angle of attack changed the margin as well but i think is less than 6 percent across the whole range of adjustments. Obviously the windows being down and the air pressure will effect the total df. But who is counting.

Thank you for the explanation.
Vipers were meant for the track. Good to see people having fun with their cars :2thumbsup:
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L8TApex
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« Reply #17 on: July 17, 2013, 06:48:39 AM »

Wow kewl Luke!

 You are smart AND fast!!!
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Yeh, this is Leslie, like my new screen name? :)
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