Aero mods for chumps...

[dennyt]

Your splitter will effectively be an air dam. You want it as low as possible, without crunching it on the curbs. Add cooling and brake ducts at the high pressure region just above the splitter, and tape everything else off.





This sounds like way too much fun!

[Vanquizor]

I note the aston martin uses the hood as teh exhaust of the cooling system... I think this is a good idea, and certainly way better than trapping the air in the engine bay. I guess some pressure mapping above and below the hood could determine if this is feasable on teh neon...

[mcrews]

Originally Posted by dennyt

Your splitter will effectively be an air dam. You want it as low as possible, without crunching it on the curbs. Add cooling and brake ducts at the high pressure region just above the splitter, and tape everything else off.

If i may steal the thread for just one post.......OMG!!!!!!!! that is the NASTYEST (and I mean that in the best way possible) modded car I have ever seen!!!!

[Vanquizor]

Here is my latest pondering... as opposed to replacing the back class with lexan and trying to make things aero that way, I wonder if I would be better off loosing half the front windshield and tinning the car like an IMCA modified...
Here is a quick link to what I'm talking about:

2010 CMG Open Wheel (IMCA) Modified For Sale

I guess this effectively eliminates a good chunk of frontal area at the cost of a bunch of dirty air...

[dennyt]

You can reduce frontal area and windshield angle without creating a bunch of dirty air.

Click images for more info.

[DonR]

Venting cooling air out the hood means it doesn't have to exit from the bottom of the car, increasing lift.

If you don't have air coming out of the engine bay, you can build a set of venturi tunnels under the car. This should increase downforce with minimal increase in drag. A diffuser will help you here. Google ground effect cars for some ideas. There are drawbacks, such as porpoising.

Someone here used body shop sticky plastic to make a pseudo fastback for a Civic del Sol or an MR2. Pretty cheap & if the organisers make you take it off, it's easy.

Good luck.

[Vanquizor]

Can't easily lay back the windshield like dennyt suggested, the cage is allready built and it hugs both the a pillars and roof pretty tight.

[Otto]

Note also aero mirrors and stalks on the Aston Martin.

How stout do the stalks need to be?

My old Porsche has fat blunt stalks and "flag" mirror housings about as streamlined as a used brickbat. WW2 Spitfire fighter had outside mirror of about the same frontal area and glass size, yet had an aero housing and narrow stalk that flew at 400+ mph without falling off in the breeze, so I wonder why car designers mostly don't seem to grasp the concept of narrow stalks and low drag.

PS: As regards chin spoiler, somebody figured that ~4" protrusion is about optimum.

[Vanquizor]

I was planning on deleting the exterior mirrors and using a nascar style mirror inside the car

[botsapper]

Not haven't seen your vehicle with its FIA cage, it is difficult to gauge if the IMCA route would be more aero-advantageous. Even with just a half windshield and flat tonneau cover, your A, B, C pillars (non-airfoil profiles) & your padded roll tubes (cylindrical) present interference & higher induced drag instead of a larger but cleaner overall profile. The mono fighters flew circles around the opposition biplanes with their exposed struts, braces & wires, less vortices.