"Should I buy the GTS or GT4?" "The question is simple: Why are you thinking what car is better for you if you dont even have money to buy a Dacia Sandero?"
Every time I read about this in engineering textbooks, I always wondered why it wasn't implemented on more race cars. Glad to see this dimple phenomenon being used in new applications.
My high school science fair project was on the application of golf ball dimples to vehicles based upon Bernoulli equations and wind tunnel experiments back in 2006 and I got 2nd in the state of GA. Showed that applications in certain areas provided fuel economy benefits.
That's super interesting, do you have anywhere that I could read about it? If not would you mind explaining it in further detail, like which parts of the car benefit from a dimpled surface?
but yet so many people still wont believe something even after evidence is provided...prime example being all the people who still say that a plane can't take off from a conveyor belt. But flat-earthers also still exist.
Jason, can you do a video on why engines over the years have had an even number of cylinders. Why Audi failed at their five cylinder (90’s?) but now we’re seeing three cylinders - what has changed and are they a good idea
Should be a fairly simple answer I think. If it's an inline engine then an even amount of cylinders is not too important, but when it's a V or flat engine then symmetry is very important for eliminating vibrations. Even with an inline engine I think up and down vibrations could exist but combustion timings could minimize this while unnecessarily complicating the development.
Came expecting a reference to the Mythbusters episode, was not disappointed. I've seen a lot of people mention they prefer to see you in front of a whiteboard, but I like seeing these change of scenery vids as well. Great video!
Everything you said at the end of the video about which car to buy is so true. “I guess buy the GT 4” LMAO. Exactly what I was thinking. Great content, thank you.
This is reminding me that I've always wanted to experiment with covering the bottom of my Miata near completely with panels to see if there can be any mpg gains.
Nice explanation! You forgot to mention that the inventor of the Golf ball dimples was William Taylor. William Taylor, a britain, was one of the founders of Taylor & Taylor, later with the admission of Hobson it became Taylor Hobson. Taylor Hobson produced the world famous cooke lenses for cinematography and interestingly later they have invented the first surface texture and also the first roundness measurement equipment which became standard in engineering, construction and also in engine engineering. Today this company is still producing the most accurate measuring equipment with their headquartes in Leicester/UK. They were aquired by the american Ametek group years ago. I have mentioned this because most of the times you are lecturing about engines and my intention was to build a brigde -> From Golf balls to Engines...
Airplanes tend to use stall strips and vortex generators instead of dimples, but the goal of energizing the boundary layer by creating turbulent flow is the same.
Airplanes just make use of the deadspace at the back instead of trying to minimize it. That's why they are so long and slender (teardrop shaped). There are limits and practicality reasons why you don't want to make a car long and slender, and obviously for a golf ball you can't orient it since it's a sphere, so in those cases minimizing the vacuum at the back is helpful.
airplanes use this principle a lot actually, look at a wing and the entire body, you see those exposed rivets? they cause the same slight turbulence and are left there for that reason, a better airfoil than a perfectly smooth surface. I'm no aerospace engineer but I did study aerospace engineering and take a few classes on it before I decided I liked what I was doing more than engineering
Cost effective production for the dimpled surface on an airplane is just not possible. Also maintenance cost would skyrocket, as seen with the attempt on using shark skin like texture on airplanes.
Ah yes, finally a car that I can transport bananas in. :3 A good high-potassium snack that I can eat after doing hot laps. Also love the Mythbusters and Donut shoutouts. I love this community. 😊
It's crazy how easy it would be to press some alumimum plates to cover your entire underbelly with. Slow process if you do it by hand, but it would bolt right into existing bellypan holes.
The 2021 GT4 with PDK is my dream car. Gotta work hard to make that happen. There's also a company that modifies the Cayman 4.0 engine to be 4.5L and makes nearly 100hp more than stock. It's wild.
Love the show, feeling like going to learn something when I hear"hello and welcome".Will we talk about how the wheel faring on a F1 car 2009 in the future?I‘m looking forward to understand it. Also interested in the gill radiator of earlier formula 1 cars.
Am I the only one who only just found out that normal cars don't generate downforce, but lift instead?! A GTS generating lift almost broke my brain. Thanks for the enlightenment Jason!
My flight instructor heart can actually get on board when Jason talks about aerodynamics except on cars you want the opposite of what we want on planes haha
@@yayayayya4731 Cars try and reduce lift and create downforce which is the same principle as lift just downward instead of upward like on a plane. Which is why calling a spoiler a wing is kinda ironic ;)
@@TechLovinDude as James May pointed out, the diffetence between a spoiler and a wing on s car is, whether or not you can put your head through underneath it. The airfoil shape is the same for a wing on a car any an airplane, just rewersed. Though there have been airplanes with reverse airfoil wings. I think, it was for air shows though.
@@CerberusTenshi That's valid. I just think it's funny. Most aerobatic plane's wings are symmetrical in shape so the air actually travels the same distance whether it is traveling on the upper or lower boundary lower which doesn't invoke bernoullis principle and instead utilizes angle of attack manipulation with pitch to increase or decrease lift. Makes the aircraft more maneuverable for aerobatic purposes. Asymmetrical wings are better for stability and worse for maneuverability. In plane applications of course, not saying this part has anything to do with cars just responding to your point haha.
In the early 90'ies I read an article about how the dimpled texture of shark skin produces less drag and that surfboard manufactures were trying to incorporate this to their boards. Never heard more of this but I have always wanted me a board with "shark skin" surface, because I felt it was a good idea.
In some supersonic fighters, the wing surface has laser drilled pinholes to allow air to be sucked into the wing by a vacuum system. This reduces drag. Maintains super laminar flow and allows for super sonic cruise without afterburners. I’m waiting for this system to surface in a hyper car.🤔
The Voice. The explanations. The Visuals! Bonkers! Nekkid girls can button up and go home while i keep watching Engineering Explained. Thumbs up and subbed! And the bell as well.
Hail damage then: „hail damage?! Oh No! Let’s call car insurance and hope they cover it...“ Hail damage now: „Good! Finally! Now the car is both faster and more economical, thanks to drag reducing dimples“
That was really well done!- and I'm a 911 and a Taycan guy. BTW you haven't done a show showing how fast a Taycan can do a cross country compared to your Model 3.
@@EngineeringExplained I think most of it is the Porsche NA app. The Electrify America app works good (but does cost more than the $0 that the NA app costs to charge. I used the EVgateway 200 KW chargers the other day and they work great also.
The exhaust thru the wheel well is a good idea I might have to use that on my mk1 rabbit racecar. Due to the fact that I have swapped in a haldex AWD system and a 1.8t that will make over 300hp I have very limited space in the back for the exhaust and it is 4 inches wider per side than stock so I might have enough room there it's at least something to look into.
As always, very interesting video. I am going to investigate now how exactly a rear diffuser generates downforce, which is something I've never known despite being a mech engineer lol.
I was wondering when I was going to see dimples on cars. I'm surprised they don't place them strategically on body panels that are most exposed to wind. No need to put them on the whole car, that would look corny. Another great video! Thank you
i dont understand the problem with the gearing, a family member of mine recently bought a 718 spyder. He has driven a lot of porsches and told me that the long 2nd gear actually made the car perfect for swift back roads because you don't have to shift all the time, also the car has a lot of power troughout the whole rev range so downshifting isn't necessary at low speeds but ig its just personal preference (love ur vids)
In an Episode of Tested Adam Savage (Mythbusters) said that a car manufacturer tried that golfball-dimple things soley on their results in the show. Yet they could not replicate those findings.
Took manufacturers long enough, I remember being in Hawaii in the early 90’s seeing body boards with dimpled bottoms and they flew across the water surface.
Considering dimples help reduce drag an increase efficiency, it would be amazing to see clean slate concept cars designed with components to attain maximum efficiency given each vehicle’s drivetrain and performance goals.
Trivia: Boundary layer air on the wing of a typical Boeing airliner works out on average to be 0.06 inches thick. That's all it takes. The way it works is that this air "clings" to the surface, allowing the air just above it to slide past with near zero drag. This drastically reduces the Cd and induced drag, if the wing is designed properly. I have a '14 Cayman S and it does not have the center radiator [the cars in this video had three radiators each] because the cooling system is sufficient for track days. For extreme situations, a third [center] radiator is available and the retrofit is not that expensive to do. Jason, I am certain that all the cars in this video use variations of Porsche's 9A1 engine. So the GT3 and the GT4 actually do have the same basic flat six. My car's 97 mm X 77.5 mm results in 3436 cc's, but the block of all these engines is the same. GREAT video! NOTHING drives quite like a 981 Porsche Cayman. I'd take the GTS simply because it doesn't have the silly scoops over the side air intakes, which I HATE the look of!
if i remember right the increase the mythbusters got on the dimpled car was insane, something like 25mpg up to 30 with just dimples on the back half of the car.
I remember reading some people in the hyper-mile community have put dimpled plastic on the outside of their honda for better aero. This was some time ago.
Great answer to "which should I buy". I'll buy both, put a tow bar and road tyres on the gts, then fully race prep my gt4 and trailer it to the track since it won't be road legal any more. Before then, I just need to win the lottery.
Great video. I can't, however, agree with your conclusion. The GT3 derived front suspension and bespoke rear suspension in the GT4 completely change the handling characteristics of the car, whether it's road or track. They are both great cars but with its upgraded suspension, the GT4 is the better driver's car, track or street.
the dimples remind me of the thermodynamic principles that regulate the beautiful vineyards of lanzarote, in the canary islands, that seen from a plane (or drone) look just like the cayman's floor. A little off topic, I am aware.
Do you think a combustion chamber with golf balls for increased surface area would work? If so, would your theoretical piston also have dimples or matching lumps?
Inside the combustion chamber you actually want as little surface area as possible, to minimise transfer of heat that could otherwise contribute to creating pressure. And I'm not sure if it would be a good idea at all on the sleeves/piston sides (they need _very_ tight tolerances). That being said, it's always a matter of compromise. Perhaps it's a possible avenue of investigation if you wanted to optimise something like swirling airflow.
A golfball with dimples mostly flies further because it's more stable and not flopping around as much. The stability has a way bigger effect than the decrease in drag.
Great video, Jason! I love the results of the work you out into your channel.👌 Congratulations on surpassing the 3 million subscribers milestone! Well done, sir.👏 Unrelated fun fact: Women with dimples are a little bit faster, too.😜
2:54 okay so there was an update to that story that I think you will find interesting. So in one of Adam Savages "tested" Q&A videos, at the end he says ford took one of their clay models and recreated the experiment in a wind tunnel. apparently they replied with a letter that stated "we don't agree with your results". so considering Ford couldn't recreate the results that could indicate why.
"it's not hail damage. it's an aerodynamic feature."
haha yeah
All hail aero
That’s a great user name.
SOLD!!!
Time to head for an auction!
"Should I buy the GTS or GT4?"
"The question is simple: Why are you thinking what car is better for you if you dont even have money to buy a Dacia Sandero?"
It's like the age old question of "Ginger or Mary Ann", to which I always reply "Both!!!".
You had mention the Sandero :))))
Great news!
Oh yeah, the cheap but not crap british car James May rode in, right?
The only person I know that gets two cars from the same manufacturer at once
@Sabūr Ali Khan wow, amazing 🤩 😯
It's like comparing the hardback and paperback versions of the same book.
It often happens to Jayemm on cars with Porsche and audi
Stradman has 2 Aventadors...
@@underseer “gets”, not “owns”
Thank you for the bananas. I wouldn’t have known how big the frunk is.
I don't always measure my trunk space
But when I do
I use bananas
I love the way americans measure things everything but the metric system
banana for scale
@@thecorsentino Someone gets it :)
@@JM-pg8qv I don't get it
Every time I read about this in engineering textbooks, I always wondered why it wasn't implemented on more race cars. Glad to see this dimple phenomenon being used in new applications.
My high school science fair project was on the application of golf ball dimples to vehicles based upon Bernoulli equations and wind tunnel experiments back in 2006 and I got 2nd in the state of GA. Showed that applications in certain areas provided fuel economy benefits.
That's super interesting, do you have anywhere that I could read about it? If not would you mind explaining it in further detail, like which parts of the car benefit from a dimpled surface?
I'd like to know too, if you have aby material that you went through or created yourself. Thanks in advance
I know it’s a good day when I hear “Hello everyone and welcome.”
And it is also a good day if you feel free to leave your questions or comments down below.
Hello everyone *_aaaannd_* welcome
What about the whiteboard??
ehehhe indeed
MythBusters was a great show to watch back in the day!
Yes they did and proved the concept
but yet so many people still wont believe something even after evidence is provided...prime example being all the people who still say that a plane can't take off from a conveyor belt. But flat-earthers also still exist.
Nothing like using Jetta tech to make your P car faster. HAHA
I came here to say basically same thing. 😁
"Makes PP goes faster"
No wonder Porsche tried to buy Volkswagen pre-GFC.
For the dimple IP.
Technically both vag lol
Yup, my 11 year old Golf has these.
this is one of the best and most detail review on GT4 i have ever seen, good work man
Jason, can you do a video on why engines over the years have had an even number of cylinders. Why Audi failed at their five cylinder (90’s?) but now we’re seeing three cylinders - what has changed and are they a good idea
Should be a fairly simple answer I think. If it's an inline engine then an even amount of cylinders is not too important, but when it's a V or flat engine then symmetry is very important for eliminating vibrations. Even with an inline engine I think up and down vibrations could exist but combustion timings could minimize this while unnecessarily complicating the development.
Congratulations for 3 Million!
Thank you!! 🙏
Well deserved
This is the comparison I’ve needed since I learned about the GTS! My realistic dream car just became more attainable! Thank you!
It's awesome, thanks for watching!
Yes I have seen the mtthbusters episode and have been waiting for a car with that tech ever since ! About bloody time someone took notice.
Same here! Finally done, I hope many other vehicles of all kind will follow.
VW been doing it for years as he have said though.
Came expecting a reference to the Mythbusters episode, was not disappointed. I've seen a lot of people mention they prefer to see you in front of a whiteboard, but I like seeing these change of scenery vids as well. Great video!
agreed, both are great!
After living in the DFW... all my cars now have dimples like golf balls due to the hail.
Great idea, live where your car naturally gets more aerodynamic!
I live in DFW and my windshield has dimples too!
Sounds like you two should consider getting Cybertrucks.
@@rubidot I would be fine with that but my budget is about 10% of the cheapest cybertruck.
@@johnhunter7244 in that case, I suppose you'll have to stick with nature-assisted performance modifications.
This new cayman looks so good!!!
Would love to see a EE + NileRed collab on the fluids that go in a car.
NileRed - "See this Lambo here? We are going to reduce it to it's chemical components."
Jason - "Hello and welc... Wait what?
“Today we are making engine oil from this pile of Geo Metro fenders I picked up at the junkyard”
I had a panic attack when that golf ball fell off the bench towards the cars.
Same here!
Me too!
The 2005 Ford GT had the dimples on a large area on the under body. It is very cool to see this technology used on vehicles.
Enjoyed the video.
Everything you said at the end of the video about which car to buy is so true. “I guess buy the GT 4” LMAO. Exactly what I was thinking. Great content, thank you.
I think of it like the age old question "Ginger or Mary Ann?".
I've always said "Both!!!".
This is reminding me that I've always wanted to experiment with covering the bottom of my Miata near completely with panels to see if there can be any mpg gains.
Nice explanation! You forgot to mention that the inventor of the Golf ball dimples was William Taylor. William Taylor, a britain, was one of the founders of Taylor & Taylor, later with the admission of Hobson it became Taylor Hobson. Taylor Hobson produced the world famous cooke lenses for cinematography and interestingly later they have invented the first surface texture and also the first roundness measurement equipment which became standard in engineering, construction and also in engine engineering. Today this company is still producing the most accurate measuring equipment with their headquartes in Leicester/UK. They were aquired by the american Ametek group years ago.
I have mentioned this because most of the times you are lecturing about engines and my intention was to build a brigde -> From Golf balls to Engines...
Looks way better than the Mythbuster's iteration of a golf ball dimpled car.
After I saw the MythBusters episode, I thought of the same thing, only regarding airplanes.
Same, excluding airplanes :P
Airplanes tend to use stall strips and vortex generators instead of dimples, but the goal of energizing the boundary layer by creating turbulent flow is the same.
Airplanes just make use of the deadspace at the back instead of trying to minimize it. That's why they are so long and slender (teardrop shaped). There are limits and practicality reasons why you don't want to make a car long and slender, and obviously for a golf ball you can't orient it since it's a sphere, so in those cases minimizing the vacuum at the back is helpful.
airplanes use this principle a lot actually, look at a wing and the entire body, you see those exposed rivets? they cause the same slight turbulence and are left there for that reason, a better airfoil than a perfectly smooth surface. I'm no aerospace engineer but I did study aerospace engineering and take a few classes on it before I decided I liked what I was doing more than engineering
Cost effective production for the dimpled surface on an airplane is just not possible. Also maintenance cost would skyrocket, as seen with the attempt on using shark skin like texture on airplanes.
OK that was one of your best videos ever. Never stop doing what you’re doing!
Thank you!!
Ah yes, finally a car that I can transport bananas in. :3 A good high-potassium snack that I can eat after doing hot laps.
Also love the Mythbusters and Donut shoutouts. I love this community. 😊
Ahh yes, the banana for scale method
It's crazy how easy it would be to press some alumimum plates to cover your entire underbelly with.
Slow process if you do it by hand, but it would bolt right into existing bellypan holes.
One of the best car videos ever. The dynamics are all about the basics.
I noticed this on my dad's GT4 a couple weeks ago, and remembered EE's video on the inflatable reverse dimples lol
"The ... Golf !"
Mindblown and cracked me up at the same time
Driving in our beautiful backyard! Bonneville dam and along the old Columbia Hwy. You put together some great segments here. Thank you.
I feel like the Corvette should do this just for the golf aesthetic. 😂
Way to parse the details! .. even though I'll never be able to afford either... it's interesting none the less..
It's Been awhile.. Good to be back
This is so satisfying to watch! Thanks you EE
WOW! This may be the best car video I have ever seen. Great job!
The 2021 GT4 with PDK is my dream car. Gotta work hard to make that happen.
There's also a company that modifies the Cayman 4.0 engine to be 4.5L and makes nearly 100hp more than stock. It's wild.
Nice vid as always! You beat me to an aerodynamics episode on the GT4 though, was planning on it! You do a better job explaining though.
Love the show, feeling like going to learn something when I hear"hello and welcome".Will we talk about how the wheel faring on a F1 car 2009 in the future?I‘m looking forward to understand it. Also interested in the gill radiator of earlier formula 1 cars.
Congratulations on reaching 3 million subscribers!
12:22 Banana for scale! That catched me off guard :D
When the ball rolled off the table I was so concerned about it bouncing into one of the cars 😂
If it can’t take the impact of a slow-moving golfball it’s time to go home
If it had hit a car, it would have just improved its aerodynamics.
@@jamesbeaman6337 hah! That made me laugh.
@@arzemagic only car id feel comfortable with a golf ball hitting is that Tesla cyber truck 😭
Am I the only one who only just found out that normal cars don't generate downforce, but lift instead?! A GTS generating lift almost broke my brain. Thanks for the enlightenment Jason!
America's Cup yachts used a similar concept 'shark skin' applique on the hull back in the 80s.
718 GT4 is probably my favorite new porsche, btw what was that road you were driving on
it looks like the historic columbia river highway
Love videos about the cayman GT4 and GTS 4.0. My dream cars
My flight instructor heart can actually get on board when Jason talks about aerodynamics except on cars you want the opposite of what we want on planes haha
And what is that?
@@yayayayya4731 Cars try and reduce lift and create downforce which is the same principle as lift just downward instead of upward like on a plane. Which is why calling a spoiler a wing is kinda ironic ;)
@@TechLovinDude as James May pointed out, the diffetence between a spoiler and a wing on s car is, whether or not you can put your head through underneath it.
The airfoil shape is the same for a wing on a car any an airplane, just rewersed. Though there have been airplanes with reverse airfoil wings. I think, it was for air shows though.
@@CerberusTenshi That's valid. I just think it's funny.
Most aerobatic plane's wings are symmetrical in shape so the air actually travels the same distance whether it is traveling on the upper or lower boundary lower which doesn't invoke bernoullis principle and instead utilizes angle of attack manipulation with pitch to increase or decrease lift. Makes the aircraft more maneuverable for aerobatic purposes. Asymmetrical wings are better for stability and worse for maneuverability. In plane applications of course, not saying this part has anything to do with cars just responding to your point haha.
In the early 90'ies I read an article about how the dimpled texture of shark skin produces less drag and that surfboard manufactures were trying to incorporate this to their boards. Never heard more of this but I have always wanted me a board with "shark skin" surface, because I felt it was a good idea.
Excellent material, thanks for uploading.
In some supersonic fighters, the wing surface has laser drilled pinholes to allow air to be sucked into the wing by a vacuum system. This reduces drag. Maintains super laminar flow and allows for super sonic cruise without afterburners. I’m waiting for this system to surface in a hyper car.🤔
The Voice. The explanations. The Visuals!
Bonkers!
Nekkid girls can button up and go home while i keep watching Engineering Explained.
Thumbs up and subbed! And the bell as well.
I had a 1986 Oldsmobile 3.8 litre with hail damage suffered in Deadwood, SD. My ANNUAL mpg was 30+ for all driving.
Hail damage then: „hail damage?! Oh No! Let’s call car insurance and hope they cover it...“
Hail damage now: „Good! Finally! Now the car is both faster and more economical, thanks to drag reducing dimples“
Bowers & Wilkins uses that on their speaker ports
That was really well done!- and I'm a 911 and a Taycan guy. BTW you haven't done a show showing how fast a Taycan can do a cross country compared to your Model 3.
Seems a lot of folks have had bad experiences with Electrify America. Hope they get their fast charging sorted soon!
@@EngineeringExplained I think most of it is the Porsche NA app. The Electrify America app works good (but does cost more than the $0 that the NA app costs to charge. I used the EVgateway 200 KW chargers the other day and they work great also.
@@EngineeringExplained Still would like you to do an evaluation of how fast the Taycan can do a cross country compared to your Model 3.
The exhaust thru the wheel well is a good idea I might have to use that on my mk1 rabbit racecar. Due to the fact that I have swapped in a haldex AWD system and a 1.8t that will make over 300hp I have very limited space in the back for the exhaust and it is 4 inches wider per side than stock so I might have enough room there it's at least something to look into.
BEAUTIFUL automotive examples of art! GIMME-GIMME-PLEASE!!!
As always, very interesting video. I am going to investigate now how exactly a rear diffuser generates downforce, which is something I've never known despite being a mech engineer lol.
Thank you Mobil 1 for sponsoring a Porschen of this video.
I was wondering when I was going to see dimples on cars. I'm surprised they don't place them strategically on body panels that are most exposed to wind. No need to put them on the whole car, that would look corny. Another great video! Thank you
i dont understand the problem with the gearing, a family member of mine recently bought a 718 spyder. He has driven a lot of porsches and told me that the long 2nd gear actually made the car perfect for swift back roads because you don't have to shift all the time, also the car has a lot of power troughout the whole rev range so downshifting isn't necessary at low speeds but ig its just personal preference (love ur vids)
Car company: Lets test a car completely covered in dimples
Me: Trypophobia intensifies
In an Episode of Tested Adam Savage (Mythbusters) said that a car manufacturer tried that golfball-dimple things soley on their results in the show. Yet they could not replicate those findings.
Took manufacturers long enough, I remember being in Hawaii in the early 90’s seeing body boards with dimpled bottoms and they flew across the water surface.
Zipp introduced a dimpled (bike) wheelset a couple of years ago. No-one else followed suit.... including themselves.
No idea what that means
Man, I forgot about those. Nice reminder.
Considering dimples help reduce drag an increase efficiency, it would be amazing to see clean slate concept cars designed with components to attain maximum efficiency given each vehicle’s drivetrain and performance goals.
Trivia: Boundary layer air on the wing of a typical Boeing airliner works out on average to be 0.06 inches thick. That's all it takes. The way it works is that this air "clings" to the surface, allowing the air just above it to slide past with near zero drag. This drastically reduces the Cd and induced drag, if the wing is designed properly.
I have a '14 Cayman S and it does not have the center radiator [the cars in this video had three radiators each] because the cooling system is sufficient for track days. For extreme situations, a third [center] radiator is available and the retrofit is not that expensive to do.
Jason, I am certain that all the cars in this video use variations of Porsche's 9A1 engine. So the GT3 and the GT4 actually do have the same basic flat six. My car's 97 mm X 77.5 mm results in 3436 cc's, but the block of all these engines is the same.
GREAT video! NOTHING drives quite like a 981 Porsche Cayman. I'd take the GTS simply because it doesn't have the silly scoops over the side air intakes, which I HATE the look of!
PS: I have a Quick Jack too and it RULES!
In the gt4, what’s the temps like coming off the backside of the radiator?
Does Porsche run those diverter fins on the gt3rs with vented fenders
Congrats on 3 million subscribers! 😃
if i remember right the increase the mythbusters got on the dimpled car was insane, something like 25mpg up to 30 with just dimples on the back half of the car.
The underbody of early 2000' Opel Astra also had a dimple pattern.
Where was this filmed? It looks so beautiful I need to go here I'm tired of desert.
I remember reading some people in the hyper-mile community have put dimpled plastic on the outside of their honda for better aero. This was some time ago.
Great answer to "which should I buy".
I'll buy both, put a tow bar and road tyres on the gts, then fully race prep my gt4 and trailer it to the track since it won't be road legal any more.
Before then, I just need to win the lottery.
For comparison purposes, Nürburgring Nordschleife lap times: McLaren F1 (stock non-LM, non-GTR): 7:20, Porsche 718 Cayman GT4: 7:28, Porsche Carrera GT: 7:40, Porsche 718 Cayman GTS 4.0: 7:40.
as always!! Great video J!!
I need a 3 pedal gt4 in my life. Peak modern car
Great video. I can't, however, agree with your conclusion. The GT3 derived front suspension and bespoke rear suspension in the GT4 completely change the handling characteristics of the car, whether it's road or track. They are both great cars but with its upgraded suspension, the GT4 is the better driver's car, track or street.
Those engineers are geniuses. Thx for sharing.
the dimples remind me of the thermodynamic principles that regulate the beautiful vineyards of lanzarote, in the canary islands, that seen from a plane (or drone) look just like the cayman's floor.
A little off topic, I am aware.
Do you think a combustion chamber with golf balls for increased surface area would work? If so, would your theoretical piston also have dimples or matching lumps?
Inside the combustion chamber you actually want as little surface area as possible, to minimise transfer of heat that could otherwise contribute to creating pressure. And I'm not sure if it would be a good idea at all on the sleeves/piston sides (they need _very_ tight tolerances).
That being said, it's always a matter of compromise. Perhaps it's a possible avenue of investigation if you wanted to optimise something like swirling airflow.
It would be interesting to include the 718 Spyder in the comparison, especially in regard with the drag and downforce
A golfball with dimples mostly flies further because it's more stable and not flopping around as much.
The stability has a way bigger effect than the decrease in drag.
Porsche is awesome! Every project has its amazing details and well-thought engineering
I've recently seen race shops use the dimple idea inside intakes and heads to maximize airflow
That integrated lunch box at the front of car is very innovative! 🤣
Exceptional. Superb content.
Great video, Jason! I love the results of the work you out into your channel.👌 Congratulations on surpassing the 3 million subscribers milestone! Well done, sir.👏
Unrelated fun fact: Women with dimples are a little bit faster, too.😜
These cars are amazing. More capability than purpose built racers of not so many years ago. And it's not just Porsche.
Some one needs to connect Jason up with the DeMan 4.5L Cayman. Grins from the short gearing solution alone would be worth it. 🏁
EE + Porsche = like even before the video has started.
This video makes me remembered that my wife's glc300 also has those dimples on the underbody
So it acts like a vortex generator without actual vortex, and for the boundary layer only. That's nice.
This was an awesome video !!
When I seen that Mythbusters episode I as well could not wait to see dimpled cars.
2:54 okay so there was an update to that story that I think you will find interesting.
So in one of Adam Savages "tested" Q&A videos, at the end he says ford took one of their clay models and recreated the experiment in a wind tunnel. apparently they replied with a letter that stated "we don't agree with your results". so considering Ford couldn't recreate the results that could indicate why.
The older I get the more I realize how much of an influence Mythbusters had on my now methodical and logical mind.
Sometimes it's not just specs or numbers sometimes it's just about getting the best one and not getting something that wasn't done up all the way
I'd love to see more of these kinda videos!!!!!