I have a day with a wind tunnel, what should I test?

"cletus44 aka Clayton Seams" (cletus44) 02/26/2018 at 11:01 • Filed to: None

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I get to play around with a wind tunnel for a day but what should I test? My first reaction is to find out if tailgate up is better than tailgate down on a pickup-truck at speed.

The wind tunnel is capable of super high speeds and they can do any temperature between -60 and +50 C.

I’ll post up the results when complete, will likely happen early March.

Nibby > cletus44 aka Clayton Seams 02/26/2018 at 11:07

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put a human in there and set it to -60C

duurtlang > cletus44 aka Clayton Seams 02/26/2018 at 11:07

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The difference between windows up and down?

BeaterGT > cletus44 aka Clayton Seams 02/26/2018 at 11:09

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Popup headlights before/after? Closed hood/released hood/improperly latched hood. Can you close a gas tank door with wind from a wind tunnel? The time I would waste in there...

For Sweden > cletus44 aka Clayton Seams 02/26/2018 at 11:10

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Does this wind tunnel have a rolling road?

Herr Quattro - Has a 4-motion > cletus44 aka Clayton Seams 02/26/2018 at 11:10

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high speed at high temperature vs low temperature.

LOREM IPSUM > cletus44 aka Clayton Seams 02/26/2018 at 11:11

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The tailgate test has already been done. Tailgate up won.

...but no one has ever tried the test with the pickup facing backwards to simulate high speed reversing. Try a tailgate up/down pickup reversing simulation and break some new ground!

cletus44 aka Clayton Seams > BeaterGT 02/26/2018 at 11:11

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Oh man the gas cap one has me wondering

cletus44 aka Clayton Seams > Nibby 02/26/2018 at 11:11

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pass!

cletus44 aka Clayton Seams > duurtlang 02/26/2018 at 11:11

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Could do that...

sony1492 > cletus44 aka Clayton Seams 02/26/2018 at 11:12

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Stick on vortex generators

Mercedes Streeter > cletus44 aka Clayton Seams 02/26/2018 at 11:12

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Stick...stick a smart in it and see what happens?

TheRealBicycleBuck > cletus44 aka Clayton Seams 02/26/2018 at 11:13

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Tailgate up/down has already been done .

My first inclination would be to test whether funky aerodynamics cause that floating feeling in old cars at high speed. Seems to me that a lack of downforce is a primary suspect. Does the wind tunnel have the equipment to test downforce at each wheel at +130 mph wind speeds?

Spanfeller is a twat > cletus44 aka Clayton Seams 02/26/2018 at 11:16

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Take a dog on the ride of their life.

BvdV - The Dutch Engineer > cletus44 aka Clayton Seams 02/26/2018 at 11:16

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Didn’t Mythbusters already test the pickup-truck tailgate?

Maybe roof up vs down on a convertible?

Urambo Tauro > cletus44 aka Clayton Seams 02/26/2018 at 11:17

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Does the wind tunnel have the ability to measure downforce?

cletus44 aka Clayton Seams > For Sweden 02/26/2018 at 11:18

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It has the option to, yes.

ttyymmnn > cletus44 aka Clayton Seams 02/26/2018 at 11:18

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How about a P-38?

cletus44 aka Clayton Seams > sony1492 02/26/2018 at 11:19

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Yes!! Always wondered if they do a dam thing.

OpposResidentLexusGuy - USE20, XF20, XU30 and Press Cars > cletus44 aka Clayton Seams 02/26/2018 at 11:20

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I need the drag coeffcient of my greyhound.

themanwithsauce - has as many vehicles as job titles > cletus44 aka Clayton Seams 02/26/2018 at 11:21

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How do camry dents affect aerodynamics?

In general, how do fender benders affect airflow?

Oh, and autozone chrome!

Sweet Trav > cletus44 aka Clayton Seams 02/26/2018 at 11:22

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That’s just your average Canadian winter no?

Azrek > cletus44 aka Clayton Seams 02/26/2018 at 11:27

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Oh man...Find the best whistle that you can attach to your car that makes awesome noises at high speed/winds!!

OPPOsaurus WRX > cletus44 aka Clayton Seams 02/26/2018 at 11:28

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in a 15 mph wind how far away can people smell your farts

CarsofFortLangley - Oppo Forever > cletus44 aka Clayton Seams 02/26/2018 at 11:32

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The affects of Moob size/belly width of Harley riders on performance and fuel economy.

Future next gen S2000 owner > cletus44 aka Clayton Seams 02/26/2018 at 11:45

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Yourself in a luge position and skeleton position. Also, in a tuck on a motorcycle and upright.

GLiddy > cletus44 aka Clayton Seams 02/26/2018 at 11:46

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What does one of those ridiculous ‘combat wings’ actually do to a car’s aerodynamics?

If you are set on testing a truck, try gate up, gate down, gate off, baha mesh gate and tonneau. Compare and contrast.

If only EssExTee could be so grossly incandescent > cletus44 aka Clayton Seams 02/26/2018 at 11:52

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Put on a grille block and tape up the panel gaps and see just how much of a difference it makes.

The Crazy Kanuck; RIP Oppositelock > cletus44 aka Clayton Seams 02/26/2018 at 12:10

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Pop up head lights up Vs. them being down.

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > cletus44 aka Clayton Seams 02/26/2018 at 12:57

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Mythbusters did the tailgate so don’t bother. It’s better up, it creates a pillow of circulating air in the bed that oncoming air bounces off. A lowered gate created a drop in air over the cab that made more drag bouncing off the bottom of the bed.

Bman76 (hates WS6 hoods, is on his phone and has 4 burners now) > BeaterGT 02/26/2018 at 14:09

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You can close a gas cap door, I’ve seen that irl.

Bman76 (hates WS6 hoods, is on his phone and has 4 burners now) > cletus44 aka Clayton Seams 02/26/2018 at 14:15

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Tailgate up vs down has been done to death. I’d suggest doing some DIY aero mods and seeing how efficient you can make something. DIY fender skirts, slick wheel covers, taped panel gaps, pro stock style spoiler/wing, undertray, but all done on the cheap.

The Compromiser > cletus44 aka Clayton Seams 02/26/2018 at 18:26

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What hair style is the most wind resistant, aerodynamic, convertible friendly, Canadian.

CaptDale - is secretly British > cletus44 aka Clayton Seams 02/26/2018 at 19:09

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I have always wanted to take my car and take all the aftermarket “aero” parts and see what really works and what doesn’t