Splitter CFD- Small Changes, 4x the Downforce (Almost)

Рет қаралды 40,379

Күн бұрын

CFD done by JKF Aero- www.jkfaero.com/
GT350 Wind Tunnel Video- • We Take Our GT350 to t...
GT350 Splitter Mounting- • Mounting our Carbon Fi...
To purchase parts or contact us: ajhartmanaero....
Facebook: / ajhartmanaero
Instagram: @ajhartmanaero
Recorded on GoPro 7 Black: amzn.to/2YW7B5N
Edited with Pinnacle Studio: amzn.to/30NWm11

Пікірлер: 59

@rolandotillit2867 2 жыл бұрын

Your new splitter also creates more outwash on the front tires, which in turn cleans up the airflow going through the middle of the car. Good upgrade, well done.

@MakingforMotorsport 2 жыл бұрын

Fantastic to see the amount of science going into the designs, as we say over this side of the pond… “proper job!”

@ajhartmanaero 2 жыл бұрын

Thank you!

@LochyP Жыл бұрын

Sound as a pound

@craigcotton4978 11 ай бұрын

Thank you for sharing will be adding profile to my splitter on the back of this video 🙏

@halofuzion2853 2 жыл бұрын

Excellent work again as usual!

@jamesshaw89 9 ай бұрын

Very cool, I like the attention to every little detail, they all add up.

@RLCPLUMBINGLLC 2 жыл бұрын

I like the tech information can't wait to start testing my parts

@lostunder12 Жыл бұрын

I have a front splitter chassis mounted with a front square. I've been looking at other aero car channels, and only you (so far into my rabbit hole of watching others) have brought up the shaping of the front splitter. Since mine is made of marine ply wood, im gonna have to sand it down to mimic an upside-down wing. Good video dude

@JETZcorp Жыл бұрын

I've always been impressed at how mickey-mouse most car aero devices are in terms of shape and understanding. Square edges on a so-called airfoil is madness. That's like using 90-degree plumbing fixtures for headers. It's nice to see some proper analysis without there being an airplane or an F1 car involved. Now if only you were doing Miata parts...

@datadrivenmqb 2 жыл бұрын

Love the channel! I'm not there yet, but definitely want to work with you at some point for MK7.5 GTI aero work. It's frustrating how terrible most of the aero stuff is designed for this platform. All "track inspired" with poor CFD models and no wind tunnel testing. These cars desperately need help with cooling (engine/brakes in particular) especially due to such a dense engine bay.

@TrackDayVideo 2 жыл бұрын

ill be buying soon thanks AJ

@hunterj2253 2 жыл бұрын

The front splitter shape is genius! I did something similar with mine but only tapered it into the factory tunnels, wish I would of thought of this!

@sepg5084 2 жыл бұрын

Of what?

@hunterj2253 2 жыл бұрын

@@sepg5084 my splitter

@lamesamelame 9 ай бұрын

8:55 Kyle would have angled the splitter in the opposite direction.I've seen him explain it better in one of his videos. The rake of the vehicle was correctly stated and Most research studies show it has this effect, except for Wagons/ SUV. If Kyle designed your splitter and canards, it's working great. 👍

@ProfessorOzone 3 ай бұрын

Looks like you need to get rid of the hood scoop and maybe the wheels. LOL. That picture looks badass.

@MickOBrien-MOB 4 ай бұрын

I like the concept and wind tunnel proof to show how it "guides" the airflow. Just wondering if one was to do the same with plywood to start as a prototype, how thin did you go at the rear of the splitter and did you cast in an eyelet of some sort being so thin so it doesn't break? TIA

@Drunken_Hamster Ай бұрын

At what height does underbody aero do basically nothing except drag reduction? I have a street/weekend car that I'd like to keep close to stock height for practical purposes, but I'd like a little downforce for stiction and general fun, I just don't want it to be either a complete waste of time or inefficient enough to increase total drag and worsen fuel economy.

@tanichiro 11 ай бұрын

first time ive heard a chamfered edge be referred to as radiused.. but that splitter is still cool non the less

$@kingwolfracing7170$

@kingwolfracing7170 11 ай бұрын

That is actually a radiused edge a chamfer is usually an edge taken down at some specified degree but a chamfer always has sharp edges where it meets the other faces

@ajhartmanaero 11 ай бұрын

what kingwolfracing said is correct. There is a difference between a radius and a chamfer. My verbiage is correct here but I have misspoke in the past.

@TD-047 2 жыл бұрын

Have you considered altering the exhaust from the wheel arches? With your carbon knowledge I bet you could improve that area significantly. Doing something similar to what the 992 GT3RS to lower the wheel arch over pressure. As for the splitter do you find extending the front surface area is needed as apposed to changing the stock profile by scalloping out the undertray to create to negative pressure eliminating leading edge extension and also reducing ground contact. Which as you know unloads the tires. Is there a solution without adding on but instead reducing high drag areas?

@ajhartmanaero 2 жыл бұрын

Wait for our next wind tunnel video.

@TD-047 2 жыл бұрын

@@ajhartmanaero Will do!

@georgedreisch2662 2 жыл бұрын

Way interesting, intuitive. Has the incorporation of wheel turbo fans been modeled for effect / augmentation of splitter function?

@ajhartmanaero 2 жыл бұрын

No. Just rotating tire and moving ground plane.

@jeanfrancoispoivre4438 2 жыл бұрын

C'est très intéressant

@beezball Жыл бұрын

What simulation program do you use? Looking to do some 3d modeling and virtual wind tunnel testing.

@JagerRacing 2 жыл бұрын

Verus engineering has their splitter in the same manner using the stock under tray which is why it wasn’t perfect for me with a GT.

@ajhartmanaero 2 жыл бұрын

I’m not quite following. Same manner as?

@JagerRacing 2 жыл бұрын

@@ajhartmanaero as you stated in the video, with the splitter bolting to the stock undertray. It doesn’t have the same wing shape which is quite innovative though. I also was curious what’s the furthest it sticks out from the oem components

@uses0ap 2 жыл бұрын

How much would the outcome vary if the degree of the tapered front edge changed? For example, a smoothed 45 degree edge vs almost a knife shaped profile

@TitusGarage 2 жыл бұрын

Do you have any tips for those looking to design/ create their own splitter blade?

@colinvanful Жыл бұрын

it might be benifical to look for airoplane wing profiles / lift . then upturn the profile

@GlicerioTomas 6 ай бұрын

What kind of material diD YOU use on that..if you answer my question I will give you 2 pesos

@ajhartmanaero 6 ай бұрын

@@GlicerioTomas the good kind

@ModernCobra 2 жыл бұрын

I need to get my car scanned. What did you use to scan the vehicle and what format is the file you sent to Kyle?

@ajhartmanaero 2 жыл бұрын

Got the car scan from a friend. Then we scanned all the under body detail and stitched it in. We sent him an stl of it all but pretty sure obj would work too.

@bendoherty7721 10 ай бұрын

What speed would that be at

@BuiltNotBought317 2 жыл бұрын

Whatcha doin with that 135i trunk lid? :)

@ajhartmanaero 2 жыл бұрын

Wing kits

@sepg5084 2 жыл бұрын

Does blue mean low pressure while red means high pressure? What color is neutral?

@ajhartmanaero 2 жыл бұрын

Yes

@alex.toader Жыл бұрын

Is there an optimal downforce? I imagine there is a point where we can say - we have too much downforce - right? The downforce ultimately decreases the forward vector by taking the car energy and creating a down vector. So what is the ideal downforce pls? (anyone?)

@ajhartmanaero Жыл бұрын

No one really knows cause there are no many factors for one optimal level.

@jacevincent2574 Жыл бұрын

Basically, more downforce means you can go through a corner at a higher speed, and there's effectively no limit to this. However, the aero will slow you down in the straights, which is the compromise. The reason you don't see huge massive aero on all racecars is usually just because the rules don't allow it. Also, more downforce does not always mean more drag, but they tend to come together.

@mrb6144 2 жыл бұрын

You working on something for the gt500?

@ajhartmanaero 2 жыл бұрын

There’s a chance this may cross over. I’d have to get a GT500 in my shop to confirm tho.

@mrb6144 2 жыл бұрын

Well I did just buy one, I gotta bunch of great ideas maybe I could contact you?

@ajhartmanaero 2 жыл бұрын

@@mrb6144 ajhartmanaero.com/contact-us/

@m4rvinmartian 9 ай бұрын

*I fortunately didn't waste much time on 3d scanners.* _They are junk._ Learn how to do photogrammetry. Much better for almost any project. But ESPECIALLY cars. This vid is a year old, I'll see if you've figured this out yet, or still are messing with scanners.

@ajhartmanaero 9 ай бұрын

Like anything, there is a learning curve. I've since picked up Revopoints Range and its much more suited what what I was trying to get the POP2 to do in this vide and can handle scanning much larger areas way better.