[Vman455]

Originally Posted by Cd

I took a screengrab of the data sheet.
I will try and make some sense of it - but if I can't, can you please give a breakdown of the increases you saw with each aeromod ?

And since I assume the aero horsepower sheet in the Tools section of the forum is for ICE cars, how can we see a spreadsheet for EVs ?

There are a lot of variables, but just as a rough guess, how much of a range increase would you see if you dropped the cD from .28 to .18 on a Volt that has a stock 30 miles of EV range ?
The Volts' frontal area is 23.7

The only aero dirty place I see on the Volt is the underside.
It looks like they hit all the right areas - grille block, extremely flush wheel to fender trasitions, and rear quarter trip strips.
- Yet the car has a poor .281 cD
There is not much else a person could do to improve the car besides the bellypan, and airdam delete, so it seems like a very hard car to modify drag on.

A 10 count reduction in drag is close to impossible, but I'm just curious.

Also, @ conor v : did you ever get around to taking off the front spoiler and adding a bellypan ?

The only thing I can think of that might help besides that is a boattail.

At best, ( an educated guess ) what might that do for the range ?

- Thanks

Careful of jumping to conclusions; there is an SAE paper on the aerodynamic development of the Volt, available here (paywall).