DJWorm said:ACP, a Forum Supporting Vendor,
has the best selection. LG Motorsports also has kits. Others that have aero body parts & kits are Specter Werks & Mallett.
The best improvements are WC front fascia, an evacuator hood such as Metro Mold or ACP's louvered hood and rear fascia with spoiler or spoiler extension. IS THERE ONE CONFIGUATION AND ANGLE THAT IS SUPERIOR AS A COMPROMISE BETWEEN DRAG AND DOWNFORCE?
There is an approved GM kit but it is not sold by GM and is similar to the WC kit with a spoiler that attatches to the rear OEM fascia.
Both ACP and Specter Werks have wide body kits as well.
Other small things that can be done to aid Aero are:
- keep or add the Body Side Moldings (many remove them unknowingly)
- Carravaggio front strakes OR
- Add Gurney Lips to front fender well leading edge. I experimented with these and used the mounts for my Speed Lingerie Bra, inverted so they stick out. These will now appear on the C6 Z06 since they work so well.
- Remove side vent interior close out to evacuate air I DO NOT FOLLOW THIS ONE--YOU DO NOT WANT THE AIR TO EVACUATE?
- Front hood seal YOU WANT TO REMOVE THIS SEAL?
- C5R lights IF YOU RUN WITH HIDDEN LIGHTS IN THE DOWN POSITION, THAT SHOULD BE BETTER THAN C5R LIGHTS, CORRECT?-I DO NOT RUN AT NIGHT ON THE TRACK.
- improve rear fascia venting by opening up new vents WHERE WOULD YOU PUT THEM?
- lowering car with proper rake will also aid Aero
DJWorm said:No, the width, length, angle and wehther or not a wicker bill is needed and what size it should be are all dependant on top speed. General rule is the slower you want the down force to be effective the larger the spoiler and greater the angle of attack needs to be. For example low speed Modifidied AutoX cars need to carry a large rear spoiler with high angle of attack and drag is not that great...however that type of spoiler would generate too much drag on a high speed car where a low angle of attack, short chord wing produces just as much downforce.
The interior close out panel in front of the side air vent makes it almost non functional. By removing it you can make it functional, evacuate air, reduce under hood lift and improve cooling. The aim is to vent the under hood engine bay...not the fender well.
I recommend adding a front hood seal. The car doesn't have one...only on the sides and rear. This aids in improving cold air into the OEM airbox and airflow over the hood.
Some remove the rear hood seal for low speed events but I do not recommend it for high speed as this area becomes a high pressure area.
With C5R lights you can actually seal the lights with thin rubber sheeting, thus improving hood air flow.
I first saw the rear fascia vents on '64 grand sports and Can Am cars. You can effectively vent a C5 rear fascia by drilling holes high on the rear panel between the headlights and then screening them. You can also relieve pressure by opening up the license plate area and screening it off....the C6R uses this technique.