Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Random Aerodynamic Oddity of the Day Thread

kach22i · 12-02-2020, 12:02 PM

Porsche 550 Spyder factory drawings | SMCars.Net - Car Blueprints Forum

Can anyone translate the German above?

What is Cw, is that like Cd but in German?

Cw = Cd ?

CwF = CdA ?

ST-Classic
https://www.st-classic.com/

ST-Classic
https://www.st-classic.com/

Not shown is the fuel pump and brake pedal line junction cover plate (deflection plate) between the ST-Classic skid plate and floor pan. Would make for a fairly flat surface minus the chaos of the air being passed over the cylinders at the rear (right side of image).

My deflection plate had several dents in it that I flattened out with a 3lb hammer. It's there for a reason, you don't want to lose your fuel pump to a Michigan pot hole.

NOTE: I'm not sure why ST-Classic chose images of a 550 and 356 for a 911 spare tire hold down strap. If it looks confusing, it is clarified at the site with other images - I trust.

I have not taken the very top image to the aerodynamic template AST-II or otherwise. Could prove to be interesting, but looks to fall way short. If the Cd is 0.233 that would be awesome.

12-02-2020, 12:02 PM	#547 (permalink)
kach22i Master EcoModder Join Date: Jul 2011 Location: Ann Arbor, Michigan Posts: 4,158 Thanks: 120 Thanked 2,790 Times in 1,959 Posts	Porsche 550 Spyder factory drawings \| SMCars.Net - Car Blueprints Forum Can anyone translate the German above? What is Cw, is that like Cd but in German? Cw = Cd ? CwF = CdA ? ST-Classic https://www.st-classic.com/ ST-Classic https://www.st-classic.com/ Not shown is the fuel pump and brake pedal line junction cover plate (deflection plate) between the ST-Classic skid plate and floor pan. Would make for a fairly flat surface minus the chaos of the air being passed over the cylinders at the rear (right side of image). My deflection plate had several dents in it that I flattened out with a 3lb hammer. It's there for a reason, you don't want to lose your fuel pump to a Michigan pot hole. NOTE: I'm not sure why ST-Classic chose images of a 550 and 356 for a 911 spare tire hold down strap. If it looks confusing, it is clarified at the site with other images - I trust. I have not taken the very top image to the aerodynamic template AST-II or otherwise. Could prove to be interesting, but looks to fall way short. If the Cd is 0.233 that would be awesome. __________________ George Architect, Artist and Designer of Objects 1977 Porsche 911s Targa 1998 Chevy S-10 Pick-Up truck 1989 Scat II HP Hovercraft Chin Spoiler: http://forums.pelicanparts.com/off-t...effective.html Rear Spoiler Pick Up Truck http://forums.pelicanparts.com/off-t...xperiment.html Roof Wing http://ecomodder.com/forum/showthrea...1-a-19525.html Last edited by kach22i; 12-02-2020 at 12:15 PM..