Professional Awesome Racing
Professional Awesome Racing
Here at Professional Awesome Racing, we specialize in race car development and are the architects behind some of the fastest time attack cars in North America. Follow along with our series as we give you in-depth look at how we design and build some of the fastest cars around.
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Not a insight anymore
Starting my splitter build. So glad I found your channel. You can thank gears & gasoline 🙏🏾
They're the best!
Check out www.professionalawesome.com/diy-downforce/ for more info as well.
Does the inlet of the splitter difuser face the front of the vehicle? Or is the diffuser supposed to look like a ramp, and have the opening to the back or the splitter?
If you imagine it like a triangle, the pointy end goes towards the front of the car and the big end points towards the back.
it would be helpful to also show how the drawing relates to the actual implementation on the vehicle but the rest I loved so thank you very much for the explain
like just because he opened with part 2 MF'ers
Fuck yeah!
Wouldn't a slightly high concave front of the splitter not force more air under the splitter and thus speeding the air up further decreasing the pressure and adding downforce?
This is a very common practice in higher levels of motorsports, but a little difficult to perfect. It's one I'd recommend testing, but with an understanding that it might be hard to dial in exactly to your expectations. Additionally, it will have greater downstream effects. So any rear aero may or may not work as intended. Sorry for not being able to give more detail, but ever car starts to get more case specific the more complicated the aero structures.
I know this video is 3 years old but have a question about side skirts. I have a 19 c7z06 with nine lives wing, custom made large front splitter with diffusers. Looking to do more so now moving to rear diffuser and side skirts. I have the factory side skirts and a little trick I don't share to often which dropped lap time consistently over 5 tenths in back to back testing over 2 year. I take rubber from a company called all fit and run about 3 to 5 inches in from the edge of side skirts and go close to the ground as I can get so creating a rubber side sealed tunnel. Now to may question. Can extended side skirts improve downforce or reduce drag. So in a sense a splitter for the sides of the car. I've seen companies sale this and people install typically flat abs but don't see how it would help. Even more so with my tunnel under the car. Let me know if you have any thoughts or any testing for this idea. I know it's an old concept put not much information out there about it and I've never tested it.
Thanks for the info on the rubber seals. To your question, yes, extended side skirts can help in a few ways. First, remember when you are in turns there is a yaw moment to the car so air is hitting it at an angle. This slight angle can help produce higher loads on top of a side skirt than the bottom, creating downforce. Additionally, it can keep airflow from the top surface of the car interacting with the bottom, which can help downforce and drag. Exactly how much is very dependent though. Testing would need to be done and the gains are much smaller than a front splitter. That being said, the same principles apply, closer to the ground the better. The longer the extension, the gains will drop off.
How does solid core aluminum composite, compare to corrugated?
Stronger with more weight. Personally, the longer we do this racing stuff, the more I sacrifice weight for strength and reliability. So I feel it's a good choice!
Revisited. Braking mid cotton corners is BIG.
I love comparing these type lasts to the STI. Fucking final corner always sucks!!!
best part is the Tomo cam
He's so dreamy!
good lord that thing is fast
Viewing from work... Did I miss the lap time?
1:38.382, sorry, didn't add that into the description originally!
@@ProAwesomeRace that's crazy fast! But, hey. I'm only 18 seconds behind ... 😂😂😂😂
That speed around the kink approaching phil hill, and also exiting esses….WILD.
Not to be an armchair aerodynamicist, but the placement of those diffusers doesn't totally make sense to me. Any air coming out of there would head right into tire squirt and get all turbulent. Wouldn't you want them more central and ducted to an oil cooler or something if you're going to use them at all?
Monty, often our intuition gets us in trouble with aero. A decade ago, I'd agree with you completely, but the CFD and wind tunnel data I've seen suggests firing the diffusers at the tire actually does the opposite. It lowers the pressure zone where the tire meets the tarmac. You get a double benefit of lower air pressure at the leading edge of the diffuser and where the tire squirt occurs. Certainly each car will react differently when trying this so I'm not saying this solution will work on all cars and all situations, but from what I've seen, it's safe to utilize this method for most applications.
cool thanks man
Thank you for taking the time to explain this in detail. It's got me pumped and excited to try my hand at making a 3D splitter!
Follow up to my last post: I received my Splitter Support Rods from Professional Awesome Racing and I can now tell you with product in hand they are absolutely beautiful. I got the Fancy Aluminium Clevises and they are beautifully black anodized with silk screened lettering. The rest of the metal hardware, collets etc., is beautifully CNC machined stainless steel. The photos on their website don't do them justice. These rods would not look out of place on any Ferrari, Mclaren, Lambo, Bugatti.... on and on. I'll add, I have no affiliation with Professional Awesome Racing. Just a very picky retired Aerospace Engineer who will only put the finest aftermarket parts on my toys. With all the crap you can wade through on the internet when looking for something, these guys are the real deal. ~ Dave in California
Thanks so much for the kind words, truly means a lot!
So.....what happened to this s2k? Sold, built, wrecked in snow? Super curious
Long story short, but I found another S2K locally that was nearly perfect, for cheaper than I bought this one! I ended up fixing a lot of little things on the S2K in the video, but sold it soon after. Then I sold the really nice S2000 and bought an Evo X MR. I still have a lot of video I took while I fixed up the S2000, so theoretically, a video could be produced and released, but I wouldn't hold my breath.
That's the closure I was looking for. Any s2k tips to make it faster?
Opinions on steel splitters?
I just love how honest he is. So refreshing! Now, on to make a splitter!!!
That’s dope! What actuators did you use for your set up? Trying to figure out something for my lambo lp640.
Good job, I would have liked to make more videos. We will be watching from Spain. Regards.
The ‘Golden Years’ of Time Attack for me
This video is exactly what I was looking for. Straightforward, to the point, informative and funny
I'm a retired Aerospace Engineer who just bought a new C8 Corvette. I bought a lot of genuine Carbon Fiber for my C8, splitter, side skirts, High wing, etc. and was researching ( because that what retired Aerospace Engineer's do ) and I came across these Splitter Support Rods. I can tell from the build quality that these are exactly what I need for my car. You can look on Amazon and see Splitter Support Rods for $15.00 on up. Chinese junk. You should not buy a $100k car and put $15.00 Chinese parts on it. That said, when I'm finish this post and I will order a set of these beautifully engineered support rods. And I won't be disappointed. The quality will match the quality of my C8 Corvette. Thank you Professional Awesome Racing for making these very high quality parts that I will be proud to attach to my new car ! ~ Dave in California
Thanks for the kind words!
starting to get into this for my cobra. I just want to smooth the airflow under the front part of the car mainly.
MOAR!
Can you share any resources on how to calculate front end downforce based on splitter size? Looking to build an appropriate sized front splitter to balance the rear air foil accordingly.
Unfortunately, there's no great resource or universal answer, but a cool and easy to understand article was written by Verus Engineering that I like. www.verus-engineering.com/blog/cfd-cases-4/air-dam-or-splitter-a-closer-look-12 Additionally, Simon McBeath's book, Competition Car Aerodynamics, has some great case studies with CFD and wind tunnel data that have info on front splitters. He also has some great articles in the magazine Racecar Engineering that are very useful, but you have to do a lot of digging to find the best ones unfortunately.
One more thing, make sure to match aero balance with weight balance. If you car is 50/50 weight distribution, try to keep aero balance close to that. If it's 60% front / 40% rear, you need to have ~60% front aero / ~40% rear.
@@ProAwesomeRace I roughly knew this from the beginning but it was actually your aero balance blog post that has sent me down the rabbit hole trying to learn/calculate. So, thanks for putting out good material.
THIS!!!!!!! This is what I've been looking for! Excellent video!
Surprised to not see more videos on this
I call dibs when you will sell this!
Holy shit what porche is that. Its movin out
Endplates!! I'd love a video explaining the different types of splitter endplates
John Burk of splitter design...great content =-D
Fantastic information here! Thank you.
Thank you for saving that video, wish more StreetFire videos could be restored.
Ply wood isn't cheap anymore 🤣
BECAUSE: If it's good enough for Carol Shelby it's good enough for you! 😁👍
thanks for your poor drawing and your awsome explanations :)
Omg I was there that year!
The infamous "Booya" button lol.
nice ducting eh. i see uve been makin similar tunnels to your large ones since at least 09. mine are working well.
16:35 that headshake...
Super Informative video on splitter design. Got a lot of good stuff to check out and think about when designing.
Liked for the first 5 seconds
Where is part 3 ?