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THE ENGINE BRAKE: What is it and HOW does it work? Motorbikes and cars

THE ENGINE BRAKE: What is it and HOW does it work? Motorbikes and cars


71 comments on “THE ENGINE BRAKE: What is it and HOW does it work? Motorbikes and cars

  1. This answer of my question. Thanks Naska,
    But how you do it ? Need your percentage estimate betwen Front brake and Engine Brake

  2. Utente medio:non ricaricare i video già fatti dall'italiano all inglese li abbiamo già visti
    Utenti di questo canale: wtf

  3. The engine breaking can be set from 3,2,1 on the Ducati 1299. The highest setting is really strong… I don't understand why engine breaking is stronger on the V-twin motor compared to the inline 4 cylinder??

  4. My simple question is why some race drivers almoust turn off engine braking. Is it useful to bring more speed into corner?

  5. I’m having a problem of getting the engine break to rev match while actually using the front break can you show us how you do that

  6. For what I've read, F1 and possibly MotoGP are studying to switch to 2-stroke engines, saying that it would be less harmful to the environment and more efficient.

  7. I am sorry Naska, but engine break is nearly only due to the vacuum the throttle body creates when shut. Thats why you can adjust it with the electronics, because the throttle bodies are electronical controlled on your R1.

  8. I knew all of these things already, but I never really put it all together as to why it did that. Awesome video.

  9. Awesome explanation. Thank you for the graphics. Can you make a video on specific numbers for engine braking for throttle/rpm ?

  10. Hey Naska, do you have any videos about downshifting with a slipper clutch vs no slipper clutch? Thanks for all the great content!

  11. While it is correct that the engine braking increases with RPM, you missed the point that at lower gears the torque conversion allows for a stronger exchange between the engine and the wheels. Love your videos, keep it up! <3

  12. Great video. I don’t know it moterbikes are different but you also forgot to add that an engine brake uses the engine as well to slow itself down as the engine is just a big air pump. And it uses the engines as an air pump with a lack of spark and petrol to help it slow itself down.

  13. But it can block the wheels up or not if you doing it too hard? so why should we not use the normal rear brake until the limit?

  14. I love your videos bro. Keep it up, and I wish you more success. Pls I have an r1 yamaha 07 mdel, it gives me lots of issues with the starter motor, how best do you think I can fix it?. Tnx

  15. Awesome explaination 🙂 That explains why formula 1 cars drop their revs so quickly compared to a standard car because the gap between the pistons and the cylinders is much less. Hmm it also means that if the revs take to long to come down the cylinders may be kaput

  16. does it worth to mention that engine brake is also making ur engine life shorter? for example, on road and if i don t really need to use a lot of engine brake i would like to use wheels brakes instead, since they are cheaper and easier to maintain? what do you think?

  17. Excellent explanation Alberto, thank you! Tutorials on using this and other techniques on track would be good too. Keep up the great work!

  18. Why a flatplane crankshaft animation? Should've put a crossplane animation video instead 🙂 Kidding aside, cool video mate as always

  19. Engine braking is misleading. When you "engine" brake, you are essentially using the gearing of your transmission to slow down. Imagine going downhill on a bicycle with no brakes. It will accelerate. Now, imagine that you are changing to a lower gear ratio on your bicycle as you are going downhill. You will slow down. So, "engine" braking has nothing to do with the internal combustion engine. The Suzuki GSX750 SRAD has one of the best engine but the worst engine braking characteristic due to its gear box. This bike felt as if it has no engine braking. Engine braking should be called "transmission" braking.

  20. Hey Naska, thanks for the English channel. In Brazil it's very hard to find videos with a so great content like your productions.

  21. Proper engine brake can save your life
    To much sometime can very dangerous if the rider doesn't have enough experience and good technique to combine engine brake and front+rear brake

  22. Я смотрю с удовольствием твое видео и на английском языке ,а за русские титры огромное спасибо!

  23. Yep, the engine brake has a big effect on decreasing the speed pike, but u can in this way just if u don't care about money at all that u will have to spend to gearbox))

  24. Pushing on your bike in the circuit, that's okay! But wtf bro, 9,2 l/100 on your Citroen? You're realy fast at the street too hahahahahaha

  25. Another great video LOVE the advice (8:21) about changing the engine braking by raising the level of engine braking for better cornering you continue to bless us with these inside tricks really appreciate it!!!!!!!!

  26. I understand about engine braking now but what i need to no is in the street and on the track when should i engine brake and how safe is it fir me please

  27. "it helps in braking" – but only up to the point of maximum traction of the rear wheel tire, which is lowered significantly during braking due to load shift to the front. I think the same amount of braking can be achieved solely by the rear brake. So the question becomes: which kind of rear-wheel braking is preferred? Maybe engine braking is inherently smoother? On the track, I actually never use the rear wheel brake, the question there becomes (on modern track bikes): how/why to adjust the engine brake level? How does it actually work (I'm guessing: some fuel is still injected to lower the engine brake). And also: how is it linked to a slipper clutch. Maybe all stuff for a follow up video? In any case, I've been enjoying your video's enormously 🙂

  28. hi alberto.. one question, u said that we can gain more engine braking when downshifting in hi RPM.. but is the slipper clutch should reduce the engine braking ? currently im using suzuki k9

  29. Wish i own a bike, never own one but i still watched all of them moto vlogs and motorcycle videos…… it hurts …

  30. Alberto, you're not explaining engine braking in this video.

    As Jason Fenske explains on his YouTube video titled "Is It Bad To Engine Brake With A Manual Transmission?", it is not compressing the engine that causes engine braking, as that compression goes into the power stroke, which naturally more than compensates for any loss of power due to compression. That of course is not the case in your demonstration of pushing a motorcycle in gear with the engine off.

    At about the 4 minute mark you explained that when you let off of the throttle the inertia of the rear wheel would like to keep the vehicle at the same speed, keeping the engine's RPMs up. Then at 5:21 you state "Where does it take the energy to stay at 5,000 RPM? It takes it from the wheels. So, sucking energy from the wheels, the engine is actually braking them. So, it is acting like a brake, and this is why it's called engine braking." You are claiming that the rear wheel speed wanting to stay constant is slowing down the engine. That's not defining engine braking.

    Let's leave this one to an engineer to explain. I'll quote Jason verbatim from the video I mentioned above:

    "You let your foot off the throttle, and so that throttle valve closes and now you have a vacuum between that throttle valve and your engine. Your engine is trying to pull in air, but the throttle is closed so it's hard for it to pull in that air and that's what's slowing you down. A lot of people say it's the compression that's going to be slowing you down in these gasoline engines and that's not the case, because as that piston compresses up, it does pressurize that air, yes, and it does take work to do that, but that work immediately goes right back into pressing that piston back down. Very little of it is actually lost to heat in that transaction because engines are smooth running machines; they're not supposed to lose heat in that scenario. So a lot of the energy from compression just goes right back into pushing the piston back down. The real engine braking in gasoline engines comes from that throttle valve being closed and trying to pull that vacuum."

    To put it succinctly, engine braking is the engine slowing down due to the vacuum created by the almost completely closed throttle valves and the slower engine speed in turn slows down the rotational speed of the drive wheel; it is not the drive wheel slowing down the engine.

    I hope you consider re-doing this video as you don't seem like the type of guy that wants to propagate inaccurate information. It seems that you genuinely want to help others better understand how things work.

  31. You should do a english lesson with Valentino, and he a racing lesson with you.
    Win-Win for both. 😉
    And in spring i would like to see a another racing video with u.
    Good Video as allways Alberto.

  32. Coming from a 2stroke i was suprised on how much a 4 stroke engine breaks (my wr450f) it was absolutly crazy to me as how much the bike jerks when you cut the gas. On a 2 stroke its not half as bad…

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