| Author | Message | ||
| Rob Schermerhorn (Rexrcr)
Member Username: Rexrcr Post Number: 763 Registered: 11-2002 |
3M clear tape.  | ||
| William H (Countachxx)
Advanced Member Username: Countachxx Post Number: 2855 Registered: 2-2001 |
Cool, wonder if I can get some time at the Sikorsky wind tunnel The Sikorsky's are good friends of my family | ||
| Mitch Alsup (Mitch_alsup)
Member Username: Mitch_alsup Post Number: 936 Registered: 4-2002 |
Extending the front tray under the passenger compartment and under the engine as best as you can will help air flow under the car and remove positive pressure from the underside (trimming lift). Having an air channel under the car (with rear diffusers) will create actual downforce, but you NEED to know where you want the center of pressure for best effect, and you will want to trim the aero with a wing anyway (unless you have access to a) wind tunnel or b) Fluid dynamics simulator.) If you want to readup on race car aero sutff: "Race car aerodynamics: designing for speed" Joseph Katz. | ||
| William H (Countachxx)
Advanced Member Username: Countachxx Post Number: 2852 Registered: 2-2001 |
Thanks, Rob, I asked the painter about venting the wheelwells & he said the pebbles would mess up the paint Will speak to my crew chief about your ideas | ||
| Rob Schermerhorn (Rexrcr)
Member Username: Rexrcr Post Number: 761 Registered: 11-2002 |
William, you can make huge gains with aero, especially without a rule book to follow. For front downforce, a splitter combined with a nose undertray which either slopes upwards from front to back, or is a bit concave, can produce upwards of 500 lb. of downforce at 100 mph. A smooth undertray both under the passenger compartment and engine/trans is important. A smooth but smart kick upwards to the rear bumper will yield benefits. A single element rear wing will be perfect to aid in trimming the aero balance. Venting the wheelwells like the F40 front integrated with the F40 rocker panel is good too. You can take cues from DTM cars for the most advanced sedan aero work, or BTCC for a bit more conservative ideas. Rob | ||
| William H (Countachxx)
Advanced Member Username: Countachxx Post Number: 2849 Registered: 2-2001 |
Phil, are you in the UK ? I spoke to the guys at Zest a few years ago but they never got back to me. Are they selling Alan Cosby's 512M or a Testarossa racer? Thanks | ||
| Phil Hughes (Ferrarifixer)
New member Username: Ferrarifixer Post Number: 35 Registered: 7-2003 |
You should speak to Zest performance in the UK about TR racing. They have a hugely developed car that was for sale just recently I think. | ||
| William H (Countachxx)
Advanced Member Username: Countachxx Post Number: 2848 Registered: 2-2001 |
Now that my 512TR racer is running we have a lot of work ahead of us perfecting it. Currently the car has no wheelwells and we have a floor from the front spoiler back under the fuel cell which is in the front trunk & under the cockpit of course but nothing in the engine compartment. I have been told that wheelwells significantly reduce aero drag and a nice floor would probably help a lot too. I havent been fast enough to notice if the rear gets light at speed but I'm sure we'll get there at Pocono this weekend Thanks |