Hey guys, I’m putting together an aero project and need some real-world data. I’ve been watching the heavy S197 and S550 cars trap huge speeds, but I keep hearing guys complain about the rear bumper acting like a parachute and the front end getting floaty past 140mph.
I recently gained access to an aerospace-grade CFD (Computational Fluid Dynamics) server for a limited time, and I want to actually map the air under these cars to see exactly where the lift and drag are happening before my access window closes.
Does anyone here have a clean 3D scan or CAD file or a video or photo walk around of there Mustang? I'm looking for one or two cars to use as the test subjects. If you shoot me the file, I’ll run it through the digital wind tunnel and post the 3D pressure map images right here in the thread so we can all see what the air is actually doing at 150mph.

Following this - this is such a cool project. Hoping someone has the model!

Slow3v said:

Following this - this is such a cool project. Hoping someone has the model!

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Have you tried calling Watson or Multimatic,maybe Ford Motorsports?

Given @AJ Hartman probably has the most wind tunnel time and is a smart guy, he may have something tucked away.

I haven't contacted them.

I have a decent model from when we did all our CFD stuff but it sounds like the level of detail you want to find what you want, you're gonna need your own very detailed scan. A lot of a cars drag comes from random underneath, hidden, or unscannable areas of a car. Like when it goes through the radiator, how/where does air go around the engine, how much goes under the car, how much out the sides, etc.

Generally speaking for any car I've every worked on, cooling drag is a big deal.

AJ Hartman said:

I have a decent model from when we did all our CFD stuff but it sounds like the level of detail you want to find what you want, you're gonna need your own very detailed scan. A lot of a cars drag comes from random underneath, hidden, or unscannable areas of a car. Like when it goes through the radiator, how/where does air go around the engine, how much goes under the car, how much out the sides, etc. View attachment 110019

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Yeah that makes sense — especially with engine bay and undercar flow, there’s definitely a lot going on there most people don’t see.
What I’ve been focusing on is mapping the external airflow side — pressure zones, rider position, and how efficiently the car/bike is moving through the air at speed.
That’s where I’ve been seeing a lot of MPH differences show up between similar setups.
I’m working on pushing it further into more detailed modeling like you’re talking about though.

Aerotunes said:

What I’ve been focusing on is mapping the external airflow side — pressure zones, rider position, and how efficiently the car/bike is moving through the air at speed.

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Nice video showing superman, supertuck variants, and puppy paws riding positions banned by the UCI (international bicycle racing rules org). He cites precentage drag reduction for a few.