You really should invest in some vacuum bags and a vacuum pump, you can add a gel coat then and really make those parts smooth. You also need a bigger shop, you out grew that place a year ago! You need some bench space man ;)
I always enjoy watching someone handbuild performance components for a vehicle. Especially when the component being made has a functional purpose AND is pleasing to the eye. Great video. You need to make yourself a large mobile work surface from plywood supported by carpenters 'Saw horse'. This will give your knees and back a rest. Nice work.
It's a pity that exhaust rear box hangs so low. I see there's loads of space above it. I reckon it would have been worth the guy having the pipe work refabbed to make that box much higher if he wanted maximum effect - the diffuser throat could have been a lot earlier on the panel if the exhaust wasn't sat there like that - and that big cutout disturbing the airflow could have been avoided
AFAIK factory mufflers are designed to be cooled by passing airflow, hence why they shouldn't be covered by any panels. even on sports cars they tend to have a cutout like he did for those areas.
That hole in the front splitter for the diff would benefit from a naca duct…. I’m not sure air will flow smoothly through that square cut box but otherwise great work Bro. I’ll be doing something similar in abs plastic for the rear of my 997
I really like how ground effect works without drastically changing the lines of the car. I was always curious, does the splitter have much effect on the air that passes above it into the engine compartment? Does it not become a bit of an airdam from more effectively catching air and having nowhere to send it?
The diff cooling duct is probably not going to work. If the factory duct forced cool air onto the diff from underneath then the duct you have made probably won’t do that. It will either draw air from the top or have zero air flow.
Wanted to ask..always bugged me.. what happens to the air that's getting trapped behind-above the defuser ...i dont know CFD but i assume it would act as an parachute on higher speeds since there are no openings in the rear fender to release the trapped air..
Next time, you can insist the customer invest in NACA Ducts! They can be pricy but theyre engineered by NACA aka NASA pre 58'. Would be perfect for low drag cooling. That opening will potentially cause buffeting like when you roll down a single window on the highway. Most likely will be fine because it only fast air under the car. Ill digree, its far more effect cooling. Great work nonetheless. Ive seen you grow from your first chassis build in the garage at home!
Not sure thats gonna do alot other than him spending a lot of time. Its very basic shapes and hed have to use some 3d scanner spay on the whole underside of the car
@@D3nn1s I’m thinking more of the fact that once he scans an RS3, machines out some moulds for the carbon fibre he can reliably produce great quality carbon fibre diffusers and splitters to sell. More than just the single custom piece.
I know it’s functional either way but as im 100% sure you already know, a simple running of a Heat gun or torch would’ve helped with those big ugly air bubbles on the top sooo much haha
Great work. I've been thinking of doing something like this on my Mini Cooper. Is it possible to cover the exhaust too? Maybe including some cooling vents?
Not sure I understand... The underside of a wing produces lift, not downforce. The more air flows under the car, the less flows over producing lift like a wing which is the opposite of what you want...
Yes if by “Forged” carbon you mean super excessively thick epoxy coated (heavy af) ghetto chopped strand carbon fiber that’s not actual forged carbon lol
Love your work and the car, but the front licence plate holder is really throwing me off. Like i get it, he can remove it easily but it just looks dumb as fuck xD
There is no such thing as a Audi RS3 GT3 This car has the spoiler of the Audi RS3 LMS which drives in the TCR category, its like group 4 or 5 so miles away from group 3 😁
They section the air. Without them the air wants to pile up towards the centerline of the car. Adding too many fins also slows the air down due to boundary layer effect. Generally 3 or 4 sections is considered good enough but it really depends on the shape and size of the diffusers
![How to Make a Carbon Fiber Swan Neck Wing [DIY] (with 3D Printed Molds)](/img/n.gif)
Not sure if I missed it, but what material is that foam? It looks like a great lay up material... No reaction with the epoxy is awesome!
You really should invest in some vacuum bags and a vacuum pump, you can add a gel coat then and really make those parts smooth. You also need a bigger shop, you out grew that place a year ago! You need some bench space man ;)
Just in time, I was just about to start work on my uni's formula student diffuser!
Which team are you? Maybe we see each other in FSG
can you layup some carbon and epoxy on those stock plastic underside panels and do 2 channels per side directing it to the 4 rear diffuser channels.
Not a bad idea. Maybe for the next visit
I always enjoyed your work when manufacturing custom stuff especially carbon fiber bodyparts. Looks awesome.
I always enjoy watching someone handbuild performance components for a vehicle. Especially when the component being made has a functional purpose AND is pleasing to the eye. Great video.
You need to make yourself a large mobile work surface from plywood supported by carpenters 'Saw horse'. This will give your knees and back a rest.
Nice work.
Great functional diffuser. What is the name of the foam material you used to form the shape of the diffuser and where can I order those?
Very cool stuff. It would be great to post some track results with the diffuser in place.
It's a pity that exhaust rear box hangs so low. I see there's loads of space above it. I reckon it would have been worth the guy having the pipe work refabbed to make that box much higher if he wanted maximum effect - the diffuser throat could have been a lot earlier on the panel if the exhaust wasn't sat there like that - and that big cutout disturbing the airflow could have been avoided
What you've done is ace! So much better than the factory fake aero !
AFAIK factory mufflers are designed to be cooled by passing airflow, hence why they shouldn't be covered by any panels. even on sports cars they tend to have a cutout like he did for those areas.
What kind of foam is this? Does this have a special name or where this can be ordered? Thx
That hole in the front splitter for the diff would benefit from a naca duct…. I’m not sure air will flow smoothly through that square cut box but otherwise great work Bro. I’ll be doing something similar in abs plastic for the rear of my 997
What's the actual name of that foam core material?
What kind of foam were you using?
Wouldn't a NACA duct be the better solution to ensure the diff is cooled instead of the hole?
I like this guy ....he works on REAL cars
I really like how ground effect works without drastically changing the lines of the car. I was always curious, does the splitter have much effect on the air that passes above it into the engine compartment? Does it not become a bit of an airdam from more effectively catching air and having nowhere to send it?
Fully torqued!!!
The diff cooling duct is probably not going to work.
If the factory duct forced cool air onto the diff from underneath then the duct you have made probably won’t do that.
It will either draw air from the top or have zero air flow.
Where do you get those foam panels for the core?
Are you located in the US if so do you mind telling me where you source your foam core from
Wanted to ask..always bugged me.. what happens to the air that's getting trapped behind-above the defuser ...i dont know CFD but i assume it would act as an parachute on higher speeds since there are no openings in the rear fender to release the trapped air..
Next time, you can insist the customer invest in NACA Ducts! They can be pricy but theyre engineered by NACA aka NASA pre 58'.
Would be perfect for low drag cooling. That opening will potentially cause buffeting like when you roll down a single window on the highway. Most likely will be fine because it only fast air under the car. Ill digree, its far more effect cooling. Great work nonetheless. Ive seen you grow from your first chassis build in the garage at home!
Very helpful! I need to do this for a NEDRA car I am building.
Great video!!! Thanks for you’re hard work.
no respirator? love those organic gas vapors.
What material did you use for the core? I've been wanting to make a cf diffuser but I can't find something that'll work well enough.
Awesome work! Love it
Wish you could put out more videos.
I understand you can't film every though
🤔should we do one for my e93
where did you find that core material for the carbon?
People who sell carbon usually also sell core materials.
Anybody know how get the LMR spoiler?
Finally! We need more content broo
Well I spot an opportunity in your development as a builder and engineer: 3D scanning
and great work as usual
nice work! thanks for inspiration for my RX-8 ;)
With this carbon fiber treatment, is it more cosmetic or does it do anything for the structure of the floor? Maybe makes it more rigid?
I would say 0 structure, its supposed to make air go under the car faster which helps alot with down force
It is very strong, but the car wont be anymore rigid.
Good stuff.. you make it look so easy
Gloves?!
Also why not vacuum pack?
What about differential? No air flow?
Any way to test this at home, smoke machine and blower? Would it be beneficial to do a cover over the exhaust too?
Aero paint works pretty well for telling if the air is staying attached and direction of flow
I wish I knew what happened with the 560sec that for me was the most exciting build I've seen
It's coming alone. Just waiting for the turbo work to be complete and then we will post another video on it
@@xfmotorsports love your wideos man keep it up !
@@xfmotorsports We're is Stefan?
This is where the money is....Making cool carbon parts for RS and M cars
Great content and inspiration for my own project 👍
How much would that roughly cost ?
You almost at 100K subscribers.
If you’re going to get a bit of this type of work, I’d say start looking at a Creaform or Peel 3D scanner.
Came to say the same thing.
Not sure thats gonna do alot other than him spending a lot of time. Its very basic shapes and hed have to use some 3d scanner spay on the whole underside of the car
@@D3nn1s I’m thinking more of the fact that once he scans an RS3, machines out some moulds for the carbon fibre he can reliably produce great quality carbon fibre diffusers and splitters to sell. More than just the single custom piece.
@@sojevic ah yes thats obviously true! :)
I know it’s functional either way but as im 100% sure you already know, a simple running of a Heat gun or torch would’ve helped with those big ugly air bubbles on the top sooo much haha
Sick as always 🤙
That’s was an awesome watch !
How much is such kind of service?
Where do you buy the foam and carbon fibre from here in Ontario?
Online
My rx8 is the same at the back so I’m doing metal hangers
How much to make a small diffuser for a car? I will pay, whats your contact info?
Great work. I've been thinking of doing something like this on my Mini Cooper. Is it possible to cover the exhaust too? Maybe including some cooling vents?
Where is the f1 project?
Do what I do buy the parts then carbon fibre skinning them it’s hard but worth it
You know what these improvements did to his laptime?
Upload a new video will you.
Not sure I understand... The underside of a wing produces lift, not downforce. The more air flows under the car, the less flows over producing lift like a wing which is the opposite of what you want...
Underside of a car wing (an upside down airplane wing)
@@xfmotorsports Thanks for the reply! I love how you're not afraid to take on complex projects, keep it up! :)
I believe that's a TCR rear wing
Awesome content 🇬🇧
Fantastic
Could the scraps be used to make a forged carbon fiber piece?
Yes if by “Forged” carbon you mean super excessively thick epoxy coated (heavy af) ghetto chopped strand carbon fiber that’s not actual forged carbon lol
@@wvuvino21 you can’t deny it looks good
@@bl00dh4nd5 defeats the point of a carbon part though
No. But it would look cool tho. Karen did something similar with metal shavings.
I'm not so sure that a trunk lid mounted wing isn't a joke
Flexing the 50-50 weight distribution there are we?
That’s a TCR wing and trunk. Not GT3
Love your work and the car, but the front licence plate holder is really throwing me off. Like i get it, he can remove it easily but it just looks dumb as fuck xD
👏
Audi?!
it would be better to remove all oem nonfunctional crap.
Gloves are like 10$.....
There is no such thing as a Audi RS3 GT3
This car has the spoiler of the Audi RS3 LMS which drives in the TCR category, its like group 4 or 5 so miles away from group 3 😁
Only problem is: DSG farts.
They sound SO awful
First in 18 sec
why did you go with only 4 Splitters on the diffuser?. Would ther be a difference with more or less splitters?
They section the air. Without them the air wants to pile up towards the centerline of the car. Adding too many fins also slows the air down due to boundary layer effect. Generally 3 or 4 sections is considered good enough but it really depends on the shape and size of the diffusers