Porsche 911 GT3 RS

[IRONICK]

https://youtu.be/EDm58UgBUxk?t=245

[aerohead]

The red-headed stepchild of the ecomodding community.

[Otto]

Originally Posted by aerohead

The red-headed stepchild of the ecomodding community.

Speaking of which, I'm considering mods on my Porsche 944 Turbo, which left the factory in the mid-'80s with a drag coefficient of 0.29. With an undertray, aero mirrors, aero cleanup of the nose with proper venting of the intercooler, air curtains, cold air intake, and maybe rear diffuser strakes, could be lowered to, say, 0.25.

[freebeard]

Is it red?

It sounds like a reasonable goal. I don't see a mention of Moon disks or wheel spats.

I was reading about the slant-four on Wikipedia and they have this picture:



The box cavity without the extra wide body width would give a Fschenfeld tearing edge.

[some_other_dave]

That was not done for aerodynamic purposes. That was done because the wheels had to be covered by the fenders, and they wanted to put wider wheels and tires on the car. So they could take corners faster.

Remember that almost any race car would gladly give up a few tenths Cd in order to gain a 10% greater cornering speed.

[freebeard]

I hear that NPC always say the most obvious thing.

Of course.

That's why I said "The box cavity without the extra wide body width". One could carry the conversation forward by saying "But what about visibility of the taillights from the side".

[Piotrsko]

Is there a requirements for side visibility? I know there is one for clearance lights but that solves a different issue. Afaik the only reason the taillights wrap around was so they didn't have to add the clearance markers.

[serialk11r]

The roof fins caught my attention. I wonder what they do. The standard 911 body should have fully attached airflow and minimal trailing vortices over the rear.

[IRONICK]

Originally Posted by some_other_dave

That was not done for aerodynamic purposes. That was done because the wheels had to be covered by the fenders, and they wanted to put wider wheels and tires on the car. So they could take corners faster.

Remember that almost any race car would gladly give up a few tenths Cd in order to gain a 10% greater cornering speed.

Going over downforce, there are plenty of solutions that help. If they weren't made for aerodynamics, then they shouldn't have put them on.

[freebeard]

As per some_other_dave, wide-bodies are a solution to component packaging.

The example at Permalink #4 offeres a modernTime Attack quasi-box cavity. As opposed to an aggressive taper.

Aerodynamics is more than down force.