Iroc wing V 3.3 Turbo Wing

[slow car]

Hi has anyone got real life facts on which REAR wing reduces the most lift ?
Iroc V 3.3 turbo wings
Thanks John

[Bill Verburg]

Originally Posted by slow car

Hi has anyone got real life facts on which REAR wing reduces the most lift ?
Iroc V 3.3 turbo wings
Thanks John

I have the data for the 2 versions or the 3.0RS wings, short and long IROC version but not for a '78 up 930 tail

if allowed, a high mounted wing is a much better way to go, these can actually generate very useable down force.

[slow car]

Hi Bill can you please share this.
Thanks

[slow car]

Originally Posted by Bill Verburg

I have the data for the 2 versions or the 3.0RS wings, short and long IROC version but not for a '78 up 930 tail

if allowed, a high mounted wing is a much better way to go, these can actually generate very useable down force.

The car has had lots of aero running in open class, now I'm running in classic class.

[slow car]

Im needing to run wings in keeping with the classic class now.
.ie Iroc, 3.3 turbo etc. what ever gets the best result at 100mph to 120 mph

[Bill Verburg]

The Cl for the short 3.0m RS tail is .025

for the long in Lemans trim it's -.276 which goes to .74 depending on how the car is set up for other circuits

@@125mph rear lift for the short is 20#
long in Lemans trim is -227# but that could go to 35# in other set up configurations

for a off the production line 3.0 RS set up it could vary from ~20# to ~60#

wheels, tires, ride height etc all change the #s

even a 2.8RSR w/ ducktail in race trim has ~ -14#s f and -~50#s rear

of the 3 non turbo tails my gut syas that the long IROC /30.E+RS would be the way to go

[stownsen914]

The IROC has the largest plan area. One advantage of the 930 is the vertical lip around the edge. You can put a vertical lip on an IROC (many racers do this) to get the best of both worlds. No data to support though.