I live ten minutes away from the TATRA factory where both of my grandpas worked and now my unckle and dad are working. I'm sad that TATRA discontinued their cars that were the best you could get here, but now they make realy good trucks that are the best you can buy for terrain use and I'm so proud of that. The trucks even raced at Dakar and won several times with the driver Karel Loprais and his team, which included my uncle.
Cool! Yeah, everyone knows that Japanese and German engineering is some of the best in the world. Not enough people know about Czech engineering. They make really good stuff too. If I was a millionaire I'd import myself a T613 or T700 to the states. I've always loved Tatra.
I'm a little puzzled as embarrassing as that is to say. I just can't quite get my head around what is actually going on here? Do these big pipes encourage more air to be pulled through the engines combustion cycle? Or something different? I only ask as I have an air cooled suzuki gs500 powered buggy/ go kart and I'd love some extra free power.... cheers guys.
@@justin3131ify yeah,basically the big pipes allow the exhaust gas to efficiently pull ambient air from the front of the engine. Basically they adjusted the exhaust pipes so it creates a suction effect,which is increased with the surface area of the big pipes. (Fluid dynamic guys back me u p here,lol)
The Czech secret weapon.... I flew with some guys from the Czech Republic and one of them had one of the last Tatra's ever built. He said it was a great car and while you had to drive it the right way, it was nowhere near as dangerous as their earlier cars. Great video!
One of the most novel exhaust powered cooling systems that has never really caught on, was on the Wankel engined, Norton motorcycle. The venturi principle was used. A smaller diameter pipe was attached to the exhaust tail pipe and connected to the hollow centre of the rotor. As the gasses flowing past the venturi pipe were high velocity, this created a lower pressure in the venturi pipe thus drawing air through the very centre of the engine effectively cooling the innermost part of the engine. One of the most difficult parts of this particular engine design, to effectively cool without using elaborate oil coolers and high pressure cooling oil. Clever English engineering, don't you agree? The problem is, Wankel engines are very difficult to live with. They produce phenomenal horse power per unit capacity but guzzle fuel and require a rebuild after every use. However, Norton showed a clean pair if heels to pretty much anything, when they managed to keep it running for a whole race. Like our Czech friends, we Brits. do love quirky engineering.
@@jdoe9518 You ask the question knowing the answer, I am guessing. Measuring displacement as opposed to swept volume is perhaps the nearest comparison with a regular engine. It only serves to fit it into a capacity class. It doesn't account for the fact that a four cycle has one power stroke every other revolution, a two cycle has one every revolution but a rotary has three every revolution, and you can rev the nuts off it! The obvious downside of this is it burns more fuel and it preceded the materials technology to reliably build it! Both of which doomed it to commercial failure for all but the esoteric enthusiast. Plus the fact that the designer was a raving Nazi, didn't help much!
@@havanasyndrome3024 What would you know? Firstly, have you ever been here? Do you know what engineering means. Is there a particular field of engineering that you could display any technical knowledge of. Do please tell me what your dental qualifications are. You sound like you talk out of your arse most of the time!
Don’t forget that the rotors spin 1/3 the speed of the eccentric shaft. So in reality only one combustion event per rotor takes place for each revolution of the eccentric shaft. Cheeky perhaps, but not inaccurate. So your question is not rhetorical, since you don’t actually know the answer. Suzuki used a similar setup on the R5 rotary motorcycle.
I can't be the only one wondering how hard it would be to construct and exhaust-cooling setup like this for an air-cooled VW, Porsche, or Corvair engine... This is fascinating and a really good video!
@@justin3131ify make a Venturi duct for exhaust a ND connect it to some kind of a shell around the engine block and cooling fins. Out would probably be easier if those cooling fins are horizontal. See first how much air your Venturi can suck.
@@GrimFaceHunter First position thermocouples all over the engine to make sure you have a baseline to compare any "modified" cooling system to "open air"?
603s were overheating uphill in higher speeds though, like pushing 90km, i remember till today dad drove us somewhere to mountains, another one passed us and few minutes later we found him on side with engine hood opened, 613s dohc did not have that problem, i miss 603s ... i wish TFL would keep theirs
That technique was similar to the method used on the Lewis machine gun. The big tubular shroud on the ground type used gases from the muzzle to suck cool air forward over the barrel. (The aircraft version didn't need it, because it was in a cold breeze anyway.)
I am pleased to learn this, of which you studied and investigated. Deeply interesting with technical drawings, pictorial aid to description and the comments section is also rewarding reading. Very nice.
At 5:31 I think you've got a bad translation. I believe ricin should be castor oil. In English, ricin refers specifically to the poisonous compound found in castor oil. Great video, though
I wonder what kind of cars Tatra would have built if Chechoslovakia weren't a communist country. These cars are extremely cool nonetheless, but I imagine they'd been even more crazy/innovative if the company weren't bottlenecked by the regime.
You also have thrust mass contributing to forward force. But just to give a comparison my olds 3.3 liter v6 produced 185 hp as did my 283 about 195. And so 200 hp is a run of the mill number by the late 1950s. Certainly a aircooled engine has its advantages, head gaskets are far mor forgiving with aircooled engines, but there are limitation on cylinder size. For gasoline powere engines the optimum cylinder volume is half liter. So if you want to increase output you either need more cyclinders, a turbocharger (realistically 30% more with more strength in the head, head bolts and head gasket), multiover head cams and 3+ valves oer cylinder, electronic ignition and advance. Some losses occur in the peak force angle of the rod to the shaft, but decreasing these forces generally results in lower RPM, peak power and higher torgue and tends to be a feature if long lasting engines but not race cars. One can also increase the fuel to air ratio which lowers EGT and allows one to increase pressures in the manifold, again at the cost of efficiency. Theres a YT site Robot Cantina where a 3 cylinder 660 cc deisel engine is used to power a saturn coupe. He manages to get the car to 80 mph and gets 80 mpg at 50 to 60 miles per hour. He basically modified the engine to turbo the crap out of it, increase feul flow and maintain EGT and MAP just below its limit. In effect hes pushing a car with three typical lawnmower engines. For comparison a prius, a much heavier car, has a 1.5 l engine it also has a max just over 80 (you can drive faster, very unconfortable) and gets abot 60 mpg between 55 and 60. Of course a prius does not have diesel fumes blowing in your face, no A/C and the acceleration of a fully loaded dump truck.
Czechoslovakia was such a Soviet manufacturing mega state! Everything was "made in Czechoslovakia" and it was a mark which meant durability and quality.
yes, nazis did exactly the same, but soviets put hold on creativity of our engeneering for 30 years and ruined almost everything, we play catch up since then...
@@theoteddy9665maybe you Nazis should have stuck with your creativity and not try to play God. You killed 19 million Russia/Beloruaua and Ukrainian civilians, and are going to cry that they stunted your technological growth. You should be thanking them that they didn't wipe you off the planet completely.
🤯 wow I have watvhed that video many times but never caught on to the ejector cooling idea,I am surprised that Dr. Porsche did not try that in all of his engine designs back then.
Porsche did take what he wanted from Tatra for his KdF-Wagen (Volkswagen). VW later had to repay Tatra for the patent infringements. The exhaust cooling idea would be difficult to use in a road car,
I had the pleasure of seeing a turbocharged and ejector cooled engine at the drag strip some time ago. It apparently started life as a Volkswagen engine, but almost nothing was a VW part anymore.
2545 cc is 155 cubic inches. I wonder if the exhaust ejector system could have been used to also pull more air into the intake system fr combustion air as well as for cooling--it might have been able to exploit a loophole in the F1 rules to have supercharging without a supercharger. That could have made up for any power disparity otherwise. Even without the boost, a lightweight rear-engines car could have been quite effective on tight, twisty circuits, like the Coopers were, even with undersized Climax engines. Then Tatra might be remembered for instituting the rear-engines F1 revolution. But we'll never know.
Right now we are fitting a turbo to a Deutz F4L912 and will add this daft system to the exhaust just to see if it actually works for standard running (low RPM) air cooled motors
I live ten minutes away from the TATRA factory where both of my grandpas worked and now my unckle and dad are working. I'm sad that TATRA discontinued their cars that were the best you could get here, but now they make realy good trucks that are the best you can buy for terrain use and I'm so proud of that. The trucks even raced at Dakar and won several times with the driver Karel Loprais and his team, which included my uncle.
It was a great team with Bedřich Sklenovský and Martin Kahánek... and the famous 6x6 Bubcha.. I was the navigator without a word of Czech!!
Tatra is a cool company for sure!
Cool! Yeah, everyone knows that Japanese and German engineering is some of the best in the world. Not enough people know about Czech engineering. They make really good stuff too. If I was a millionaire I'd import myself a T613 or T700 to the states. I've always loved Tatra.
I'm in America and those Tatra trucks look like the best in the world.
@@jnordne2 you'd make some money selling those trucks here.
I've heard a lot of V8 cars in my life, from old american muscles to trucks, but this Tatra racecar is the best sounding V8 I've ever heard.
Those large exhaust pipes were also used on aircraft radial engines to encourage air flow over the cooling fins. This is called an "ejector" exhaust.
Yep I actually just watched a YT vid about it, can't remember where tho maybe 4:18
Plus… it’s badass.
That and it was running 50% methanol which has a significant cooling effect
I'm a little puzzled as embarrassing as that is to say. I just can't quite get my head around what is actually going on here? Do these big pipes encourage more air to be pulled through the engines combustion cycle? Or something different? I only ask as I have an air cooled suzuki gs500 powered buggy/ go kart and I'd love some extra free power.... cheers guys.
@@justin3131ify yeah,basically the big pipes allow the exhaust gas to efficiently pull ambient air from the front of the engine.
Basically they adjusted the exhaust pipes so it creates a suction effect,which is increased with the surface area of the big pipes.
(Fluid dynamic guys back me u p here,lol)
The function of these ludicrously large exhausts finally explained, and that sound gets never boring!
*LOVE* the sound of Tatra V8s! Such an AMAZING sound.
As a Czech I alway like to see people from other countries admiring Tatras.
The Czech secret weapon....
I flew with some guys from the Czech Republic and one of them had one of the last Tatra's ever built. He said it was a great car and while you had to drive it the right way, it was nowhere near as dangerous as their earlier cars.
Great video!
once again it's proven that tatra is really the most underrated auto manufaturer ever.
I learned about Tatra through VisioRacer! Thank you VisioRacer!
Those Tatra V8's sound so much more aggressive than their small displacement suggests. Could've mistaken them for healthy American big blocks.
It's the cross plane firing order they used. The other stuff was flat plane back then
Love cross plane. Sounds wonderful. My car has the jaguar 5 litre V8. Love it, but I think I might love the Tatra at 0:40 more!
2 words that cannot be used together in a sentence.....
Healthy American
Yeah, it's the combo of the flat plane crank & the total lack of muffling! 😄
Jednoduché, účinné a spolehlivé, prostě blbuvzdorné. Kdo umí, tak umí a kdo neumí tak čumí, páni inženýři.😮👍
Eastern Europe production are usually underrated, but you are showing nice examples of great technology. Thank you.
Czech republic is in Central Europe, not eastern
One of the most novel exhaust powered cooling systems that has never really caught on, was on the Wankel engined, Norton motorcycle. The venturi principle was used. A smaller diameter pipe was attached to the exhaust tail pipe and connected to the hollow centre of the rotor. As the gasses flowing past the venturi pipe were high velocity, this created a lower pressure in the venturi pipe thus drawing air through the very centre of the engine effectively cooling the innermost part of the engine. One of the most difficult parts of this particular engine design, to effectively cool without using elaborate oil coolers and high pressure cooling oil. Clever English engineering, don't you agree?
The problem is, Wankel engines are very difficult to live with. They produce phenomenal horse power per unit capacity but guzzle fuel and require a rebuild after every use. However, Norton showed a clean pair if heels to pretty much anything, when they managed to keep it running for a whole race. Like our Czech friends, we Brits. do love quirky engineering.
And how is the capacity of a rotary worked out? Incorrectly in reality.
@@jdoe9518 You ask the question knowing the answer, I am guessing. Measuring displacement as opposed to swept volume is perhaps the nearest comparison with a regular engine. It only serves to fit it into a capacity class.
It doesn't account for the fact that a four cycle has one power stroke every other revolution, a two cycle has one every revolution but a rotary has three every revolution, and you can rev the nuts off it!
The obvious downside of this is it burns more fuel and it preceded the materials technology to reliably build it! Both of which doomed it to commercial failure for all but the esoteric enthusiast. Plus the fact that the designer was a raving Nazi, didn't help much!
British engineering is about as appealing as British dental care. Hard pass 😂😂😂
@@havanasyndrome3024 What would you know? Firstly, have you ever been here? Do you know what engineering means. Is there a particular field of engineering that you could display any technical knowledge of. Do please tell me what your dental qualifications are. You sound like you talk out of your arse most of the time!
Don’t forget that the rotors spin 1/3 the speed of the eccentric shaft. So in reality only one combustion event per rotor takes place for each revolution of the eccentric shaft. Cheeky perhaps, but not inaccurate. So your question is not rhetorical, since you don’t actually know the answer. Suzuki used a similar setup on the R5 rotary motorcycle.
Daaaaamn that Tatra V8 sounds so GOOD!!!
I can't be the only one wondering how hard it would be to construct and exhaust-cooling setup like this for an air-cooled VW, Porsche, or Corvair engine... This is fascinating and a really good video!
Nope! I have an air cooled suzuki gs500 go kart and now I need to know how to achieve this properly on such a small displacement engine...
@@justin3131ify make a Venturi duct for exhaust a ND connect it to some kind of a shell around the engine block and cooling fins. Out would probably be easier if those cooling fins are horizontal. See first how much air your Venturi can suck.
@@GrimFaceHunter
First position thermocouples all over the engine to make sure you have a baseline to compare any "modified" cooling system to "open air"?
@@justin3131ify easy. Add an electric fan
It's like a carburetor but without the choke and throttle
This cooling sistem was used on soviet tanks as well, the PT-76 and T-10 being some exhamples
Tatras were amongst the most beautiful cars ever made.
7:50 wow.... too good.... Superb buddy 🤘🤘👍
603s were overheating uphill in higher speeds though, like pushing 90km, i remember till today dad drove us somewhere to mountains, another one passed us and few minutes later we found him on side with engine hood opened, 613s dohc did not have that problem, i miss 603s ... i wish TFL would keep theirs
Visio always brings the best vids😎😎
Fantastic video on a technology and engine that I had never thought was so ahead of its time.
The Norton RC588 rotary race bike also used an extractor exhaust designed by Brian Crichton. Awesome sound.
As far as I know, it was cooled by air before entering the intake system.
Thé french luxury car producer " Voisin " also have used this technologue before ww2
@@VisioRacerwhat's the difference with tatra?
I fallen in love with these tatra
Have always loved the "Pumpkin Orange" 603 racers! Their trucks are unbelievable. Many thanx 👍👍
Absolutely great video,the sound of Tatra remind a small block v8.
7:57 As someone who have seen this car racing live, the loud exhaust is definitely not a downside 😃
Great video Sam!
It sound great for such a small engine. I suppose 105 decibels would get just a bit tiring after a couple of hours in the driver's seat!
Most definitely. I've driven way too many miles on road trips after the muffler fell off.
Or from the neighbours garden.
Same ejector cooling system with no fans is used on soviet tanks like t10 , t64 , and soviet ifvs like the bmp-1 and bmp-2
Love the efforts you did put into the editing man !
Thank you, glad you love it!
I agree 100%.Brilliant videos.
That technique was similar to the method used on the Lewis machine gun. The big tubular shroud on the ground type used gases from the muzzle to suck cool air forward over the barrel. (The aircraft version didn't need it, because it was in a cold breeze anyway.)
I am pleased to learn this, of which you studied and investigated. Deeply interesting with technical drawings, pictorial aid to description and the comments section is also rewarding reading. Very nice.
Thank you, Jack, pleasing to read this!
That is pretty cool, great video. That V8 sounded great.
Jay lenos video on his tatra is pretty good also.
Great Video 👍
I litterally just bought one of those engines to put in my car yesterday.
sounds amazing, can't get enough of it
Basically works like a blastpipe on a steam locomotive to generate cooling air flow instead of exhaust draft.
Dang i love how the Tatra v8 sounds!!
Incredible creativity from Tatra, would love to see modern car makers apply this cooling system into modern vehicles, air-cooling in general!
Yeah, about that noise thing....
Thank you for sharing this information! How cool to improve power and efficiency by using the exhaust to cool the engine.
The Tatras were just magnificent.
I'd argue the incredibly loud noise was a feature, not a downside :D
It sounded great!!
@ 7:50 the sound of that engine taching out is absolutely crazy cool!!
That sounds way better than most modern V8s!
Id love to hear that number 20 car in person. That thing is cool. Its the East Block Hudson Hornet.
Such a great channel.
Thank you for so many interesting videos over the years like this one.
My pleasure!
Can we discuss the ricin in the fuel please?
7:57
There was 'no downside' for engine sound enjoyer XD
Thats a legit awesome engine m8. thx 4 the vid
Carbureted, air cooled, cross plane V8, and with that straight piped exhaust these were some of the best sounding engines ever!
Video always well detailed and interesting. 👍🏻
Thank you. Excellent video. Great clips and editing.
Thanks, Michael!
At 5:31 I think you've got a bad translation. I believe ricin should be castor oil. In English, ricin refers specifically to the poisonous compound found in castor oil. Great video, though
Well detailed, thanks Viso !
I really think this is the only V8 crossPlane
which I like the sound
I wonder what kind of cars Tatra would have built if Chechoslovakia weren't a communist country. These cars are extremely cool nonetheless, but I imagine they'd been even more crazy/innovative if the company weren't bottlenecked by the regime.
Yeah, I made this kind of fan-fic in the Automation car dev game.
If Moscow doesn't stop almost all development we will be driving Tatra and Beskid
Kudos again VR! 🙂
What a nice sound from those big exhaust pipes love it
Definitely cool!
Very interesting information, thanks for video. 👍
Great video, thank you for this very interesting content👍
Always good content..
That orange one sounds mean, I bet it's cool to drive. You have yourself a new subscriber, awesome review! 👍👏
Awesome Tatra!
Thanks VR - another fascinating video
Thanks!
Very interesting. Thank you.
Interesting stuff 👍😎
Fascinating, thanks.
A fantastic sound out of an unusual engine, from an unsuspecting country.
You also have thrust mass contributing to forward force.
But just to give a comparison my olds 3.3 liter v6 produced 185 hp as did my 283 about 195. And so 200 hp is a run of the mill number by the late 1950s.
Certainly a aircooled engine has its advantages, head gaskets are far mor forgiving with aircooled engines, but there are limitation on cylinder size. For gasoline powere engines the optimum cylinder volume is half liter. So if you want to increase output you either need more cyclinders, a turbocharger (realistically 30% more with more strength in the head, head bolts and head gasket), multiover head cams and 3+ valves oer cylinder, electronic ignition and advance.
Some losses occur in the peak force angle of the rod to the shaft, but decreasing these forces generally results in lower RPM, peak power and higher torgue and tends to be a feature if long lasting engines but not race cars. One can also increase the fuel to air ratio which lowers EGT and allows one to increase pressures in the manifold, again at the cost of efficiency.
Theres a YT site Robot Cantina where a 3 cylinder 660 cc deisel engine is used to power a saturn coupe. He manages to get the car to 80 mph and gets 80 mpg at 50 to 60 miles per hour. He basically modified the engine to turbo the crap out of it, increase feul flow and maintain EGT and MAP just below its limit. In effect hes pushing a car with three typical lawnmower engines. For comparison a prius, a much heavier car, has a 1.5 l engine it also has a max just over 80 (you can drive faster, very unconfortable) and gets abot 60 mpg between 55 and 60. Of course a prius does not have diesel fumes blowing in your face, no A/C and the acceleration of a fully loaded dump truck.
Czechoslovakia was such a Soviet manufacturing mega state! Everything was "made in Czechoslovakia" and it was a mark which meant durability and quality.
yes, nazis did exactly the same, but soviets put hold on creativity of our engeneering for 30 years and ruined almost everything, we play catch up since then...
@@theoteddy9665maybe you Nazis should have stuck with your creativity and not try to play God.
You killed 19 million Russia/Beloruaua and Ukrainian civilians, and are going to cry that they stunted your technological growth. You should be thanking them that they didn't wipe you off the planet completely.
7:53 sounds better than many american V8s of larger displacement
Great audio on that last clip. That person is in a hurry
can you do a video about the Furhmann 4 Cam Porsche engines. I think there isnt very good info out there
Hmm, it's was like a Porsche with a V8 motor. Kick ass, aerodynamics, traction but with the sound of a V8. Cool. I want one.
🤯 wow I have watvhed that video many times but never caught on to the ejector cooling idea,I am surprised that Dr. Porsche did not try that in all of his engine designs back then.
Porsche did take what he wanted from Tatra for his KdF-Wagen (Volkswagen). VW later had to repay Tatra for the patent infringements. The exhaust cooling idea would be difficult to use in a road car,
Tato koncepce chlazení byla použitelná jen u závodního automobilu.👍
Bring back the Tatra exhaust induced air and oil cooled engines again!
At that small size and light weight, I think I can fit one in my Corsa lol
Such amazing technology could only come from the Czech Republic
Video idea: Metalex and Varburk formula cars and soviet block formula racing
Great vid!
This cooling system sounds kinda familiar to the one used by the Lewis Gun’s barrel shroud.
Certified worlds coolest 95hp v8
Czech engineering at its best.
Sounds like a monster!
Damn never knew the Czechs had a bad ass engine. It's beautiful and sounds wicked
I had the pleasure of seeing a turbocharged and ejector cooled engine at the drag strip some time ago. It apparently started life as a Volkswagen engine, but almost nothing was a VW part anymore.
I guess you are going to produce a video on the Tatra 602 now? I did look but could not see one.
The other advantage of the ejector exhaust is that it sounded absolutely sick-nasty.
Nice note!
Queastion, at 7:49, what is the white car on the right with the license plate "3Z2 3662"?
Tatra 613
@@martingono4256 thank you!
2545 cc is 155 cubic inches. I wonder if the exhaust ejector system could have been used to also pull more air into the intake system fr combustion air as well as for cooling--it might have been able to exploit a loophole in the F1 rules to have supercharging without a supercharger. That could have made up for any power disparity otherwise. Even without the boost, a lightweight rear-engines car could have been quite effective on tight, twisty circuits, like the Coopers were, even with undersized Climax engines. Then Tatra might be remembered for instituting the rear-engines F1 revolution. But we'll never know.
thats a briliant idea
Right now we are fitting a turbo to a Deutz F4L912 and will add this daft system to the exhaust just to see if it actually works for standard running (low RPM) air cooled motors
If you have sufficient turbo air pressure use some of it in an "ejector jet" to create additional venturi effect for that exhaust?
sounds magnificent!
VERY INTERESTING - thank you...!
Incredible sound!
One man's noise is another man's music.
*ears ringing*
"Sounds GREAT!"
Wicked exhaust tone 🔥
🤔 I wonder how well it would do on a quarter mile?
Are we sure the "incredibly loud noise" was a donwside? 😁😁
It seems directly outta hell ❤❤
And this is exactly where the Bosozoku car culture started 😁
Ford had a turbo that ran off the rear differential back in the 60s. Wpuld be a good video
and an American put large cooling fins on the flywheel of a race car..channeling the resulting pressurised air into the intake system....oh wait....
Sounds awesome , I wouldn't mind a 613