Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

galahs · 08-08-2011, 11:21 AM

Aerodynamic improvements on the VE Series 2 include:
· Addition of panels under the vehicle floor to reduce airflow drag (sedan and Sportwagon, excluding Omega)
· Reduced trim height on Omega and Berlina sedan
· Air deflectors fitted to the front of sedan rear wheels (Omega, Berlina Calais)
· Rear decklid re-design to include aero lip detailing (sedans)
· Front undertray modified to reduce drag

Note the additional lip on the VE Series 2 bootlid to improve aerodynmics by promoting a cleaner air seperation.

The VE Series 2 SS and SV6 front bar has been redesigned to promote smoother air flow around the front wheels (the wheel arch flares introduced in the VE were a bad source of turbulence)

Air deflectors fitted to the front of sedan rear wheels (Omega, Berlina Calais) on the VE Series 2 Commodore

Change to front bumper helps to smooth the airflow around the cars front wheels on the VE Series 2 Commodore

Aero improvements

New under-body aero=smoothers.

Fascia and rear changes, with the more rounded nose and under-car trays combine to produce significantly lower drag. The undercar trays weigh almost nothing. Small rear wheel deflectors on the sedans channel air away from the wheelwells which reduces parasitic underbody drag. The small lip on the sedan bootlid is a minor but functional addition to smoothing the flow of air over the car. The new shape was wind-tunnel test-validated at the GM Windtunnel, Warren Michigan, and the Monash University windtunnel in Australia, as well as simulated in virtual reality.

Wind deflector - 'looks like some dummy fitted the mudflap wrong!"

VE Series II Commodore Tech - GM Inside News Forum

This is from Wheels Magazine October 2010

Drag Co-Efficients
VE Commodore Omega = 0.354
VE Commodore Omega Series II = 0.330
VE Commodore SS Series II = 0.35+ (extra drag due to cars rear wing)

The VE Commodores flared wheel arches add 0.02 to the drag co-efficient
Lowering the VE Series 2 by 10mm had improved the cars aerodynamics by forcing air up and over the smoother top surface of the car. It also helped fill in the wheel arch space.

08-08-2011, 11:21 AM	#7 (permalink)
galahs EcoModding Lurker Join Date: Jan 2011 Location: nsw australia Posts: 34 Thanks: 0 Thanked 14 Times in 12 Posts	Aerodynamic improvements on the VE Series 2 include: · Addition of panels under the vehicle floor to reduce airflow drag (sedan and Sportwagon, excluding Omega) · Reduced trim height on Omega and Berlina sedan · Air deflectors fitted to the front of sedan rear wheels (Omega, Berlina Calais) · Rear decklid re-design to include aero lip detailing (sedans) · Front undertray modified to reduce drag Note the additional lip on the VE Series 2 bootlid to improve aerodynmics by promoting a cleaner air seperation. The VE Series 2 SS and SV6 front bar has been redesigned to promote smoother air flow around the front wheels (the wheel arch flares introduced in the VE were a bad source of turbulence) Air deflectors fitted to the front of sedan rear wheels (Omega, Berlina Calais) on the VE Series 2 Commodore Change to front bumper helps to smooth the airflow around the cars front wheels on the VE Series 2 Commodore Aero improvements New under-body aero=smoothers. Fascia and rear changes, with the more rounded nose and under-car trays combine to produce significantly lower drag. The undercar trays weigh almost nothing. Small rear wheel deflectors on the sedans channel air away from the wheelwells which reduces parasitic underbody drag. The small lip on the sedan bootlid is a minor but functional addition to smoothing the flow of air over the car. The new shape was wind-tunnel test-validated at the GM Windtunnel, Warren Michigan, and the Monash University windtunnel in Australia, as well as simulated in virtual reality. Wind deflector - 'looks like some dummy fitted the mudflap wrong!" VE Series II Commodore Tech - GM Inside News Forum This is from Wheels Magazine October 2010 Drag Co-Efficients VE Commodore Omega = 0.354 VE Commodore Omega Series II = 0.330 VE Commodore SS Series II = 0.35+ (extra drag due to cars rear wing) The VE Commodores flared wheel arches add 0.02 to the drag co-efficient Lowering the VE Series 2 by 10mm had improved the cars aerodynamics by forcing air up and over the smoother top surface of the car. It also helped fill in the wheel arch space.