whats your opinion on lightweight vs stock weight. i think stock weight adds a better kick whereas light weight will spin faster but lose energy while disengaging the clutch
hello thanks for your video. here's my question. since flywheel store inertia force and make power distribution evenly. why we still trying to reduce crankshaft weight？ what's the disadvantage that build flywheel weight into crankshaft ？ thank you for your answer.
Nice job on explaining this. I learned about flywheels when I was in college. I had an old Mustang with a tooth missing on the flywheel and if the starter engaged in the wrong place, it stuck. I'm not much of a mechanic and after paying to have it towed and fixed once, I learned to fix it myself. After that, I kept a set of coveralls in the car and when it got stuck, I crawled under there, took off the starter, disengaged the little gear that popped out, hooked it back on and went on my merry way. My girlfriend (now wife) didn't like it too much but I thought it was pretty nifty....
@@ImNotADeeJay Henry Ford could have done nothing if the farmer didn't produce his food or the factory worker didn't make his shoes or the construction worker didn't build his shelter so that he could sleep peacefully
Thanks for watching so many! I'd like to get into dual mass flywheels eventualy - Porsche uses both types, depending on the car. Definitely an interesting topic - can't promise it'll be anytime soon though. Cheers!
Thanks. For a lighter flywheel you can basically reverse the pros/cons I have listed. You'll get better throttle response, but you'll lose the smoothness. But for some engines, and small engines, this could be ideal.
I believe balancing a flywheel is done to remove some of the scratches that occur on the surface, making the contact better between the clutch disc and the flywheel.
its the smart thing to do because youtube only gives the poster credit if people watch the video to the end. Too many videos have long drawn out endings which people don't watch so they stop before the end.
So the flywheel is simply a plate mainly to add weight to keep inertia on the crankshaft? This had me thinking, so I want a flywheel not too heavy so its easier to accelerate, but heavy enough to have a good inertia. Am I right?
YUP! You literally nailed it. I'd imagine that your suggestion is exactly what most auto manufacturers are aiming for. The way I picture the function of a flywheel in my head is like pushing someone on a playground swing. You're continually adding more and more energy to the system, but because your additions are not constant, steps would happen. But, because you've already added so much energy, the inertia alone is enough to drive the system, with obvious slight loss over a period of time. Obviously when you stop pushing someone, they don't come to a sudden stop from a full swing. They're using up the energy "reserved" in the inertia of the system.
Hi, your explanations are very great and very colorful and useful! I just want to mention, that in compression state, the cylinder doesn't produce any torque, as you said correctly, but it consumes torque to compress the air. Keep on!
Yes, that's the "requires more energy to rotate" part. More energy goes into rotating a flywheel, meaning less energy goes to the tires. You've got it right.
I know this video is super old but as someone who is a new service writer at a Mack/Volvo dealer (tons of experience in the trucking industry just not on the mechanical side), this is super helpful and well explained. Thank you.
It's nearly analogous to a capacitor in electronics, which also store power and even out the voltage fluctuations, and a larger capacitor will smooth the voltage even more and store more power.
I think it's the opposite. A capacitor continuously slowly takes up charge, and then releases it all in a quick burst. A flywheel, on the other hand, takes quick bursts of power and maintains a constant flow of the power outwards.
***** Wait. You were actually right initially. Capacitors are used to regulate the flow of current. However, they're also used for quick bursts as well. So, yes, a flywheel is similar to a capacitor, but a capacitor has some uses that a flywheel doesn't.
I see your point, perhaps then not like a capacitor acting on it's own, but rather synonymous with the effect a capacitor can have on an output function when placed in parallel. I, too, couldn't help but bring the similarities between the flywheel and capacitors 'smoothing/filtering' effect on the output function.
Eiad Hamwi flywheels are pretty much exactly synonymous with capacitors in electronics and water towers in plumbing/fluid dynamics. When the engine is running but the clutch is open the flywheel stores energy, which can then be transferred to the tires either quickly or slowly by releasing the clutch either quickly or slowly.
I was not sure at all, I went in as a biological/agricultural engineer, changed over to ME after my freshman year. Many universities will have courses and open houses going over the various engineering fields.
Now I thought that having four pistons where each combustion stage is offset (not occurring at the same time) was what produced the equal distribution of torque. Could someone explain why that isn't enough and you still need a flywheel?
Any rotational mass will add to how smooth the engine runs. The greater the mass, the more smoothly it will run, but it will also waste more energy, so you have to balance it. Also, the flywheel serves another purpose in manual cars, as something that engages with the clutch disc to connect the engine to the transmission.
Isn’t the fact that you have multiple cylinders, each with a differently timed power stroke, timed to continuously power the drive shaft even a bigger factor in smoothing out the energy spikes? This example is more for a single cylinder engine.
Hey basically I’m just trying to figure out how big of a deal it is that I have my cams finally lined up correctly, but my flywheel isn’t top dead center. Also, how do I fix that?
I believe that some 12 cylinder engines can work without a flywheel (or with a very small flywheel) due to power stroke overlap and the desire to make it free revving?
I've got a video on KERS coming up, but I explain the method used by the GT-3 R Hybrid. Formula one uses ultracapacitors (I believe) and I briefly discuss this in the video I have coming up. The general idea remains the same though. Patience my friend! I get 5+ requests per day. :)
Search my channel for "cylinder deactivation." I have a video on it, that should be helpful. Also, I believe you can message me on the right column on my channel, it should say "send message" somewhere.
If you're in an automatic, it keeps on rolling. If you're in a manual, and in neutral, it keeps on rolling. If you're in a manual, and in gear, it will eventually stop, and consequently shut off your engine.
You can get back to me with them, if you check out my video on rotational inertia I have a link to a useful site which breaks down the math for flywheels. I also prefer engineering over physics, though the discussion of theoretical physics is fascinating.
Your logic is sound; a heavy flywheel would keep the engine RPMs up longer than a lower weight flywheel, as it would take more energy to slow it down. Also (not really applicable to racing games) I've noticed that on my gf's car (a Mazda 3) the electronic throttle keeps the revs up, it takes longer to close the throttle valve when you let go of the gas pedal.
Umm, I guess it depends on how it's broken. If the teeth are gone then you won't be able to start, since the starter motor needs something to rotate. Flywheels don't seem to be a common failure point though, so I'd be cautious. If your car starts and feels fine, then your flywheel is likely fine.
What questions do you still have? It's a metal disk, there isn't much else to it other than its inertia is used to smoothen out the pulses of force applied to the crank.
Interesting suggestion. I'd have a difficult time without any visuals though. What would you suggest talking about? I certainly couldn't explain how cars work haha.
Great explanation! I always have trouble wrapping my head around these technical and physics--related things, but now at least I understand the purpose of a flywheel! Thanks!
Heavier flywheels take more time to rotate as they have greater inertia. A ligher flywheel will allow the engine to accelerate more quickly, which will appear as a perceived increase in power. The engine makes the same power, but you have access more of it as less is lost in energy to rotate the flywheel.
Since you're new I would suggest starting with my videos "engines - explained" and "car gears - explained" which should help clear some things up. Lower gears will have higher torque but lower top speeds. The flywheel rotates at a steady speed due to its mass, but the speed is certainly not constant. Any forces that act on it will slow it down or speed it up.
It would be correct to assume that a larger flywheel would reduce engine braking, as it has more inertia and would attempt to keep the car rolling. A lighter flywheel would be easier to stop, hence it would increase engine braking. The design is important also, where the mass is relative to the center of rotation.
Thank you! If you watch my older videos the camera quality isn't so hot. But yes, it does come down to money. My girlfriend was kind enough to buy me an excellent camera about a year ago.
Having a lightweight flywheel will increase engine response, and also because the engine comes down in RPM quicker, it means one can shift faster, and will increase acceleration, as well as have the benefit of obvious weight loss. Having a light flywheel will increase the roughness of the engine, and it will make a manual transmission car easier to stall, thus requiring more slip in the clutch to get the car to go, and it will also be damaged easier if its lighter, as their is usually less metal overall to work with (if it's too thin/weak, the flywheel may explode from a bad shift, causing a bad day, or worse).
Hi there! Torque is basically a turning force. A great analogy is where you apply force on a rench connected to a bolt at a certian distance. Let say 100lbs of force apllied to a rench which is a foot long connected to a bolt. Times both of the values and units together to give a Torque of 100 ft lbs. higher the value, the higher the torque. Another e.g Gears, the radius (distance) of the gear times the force applied to the teeth.
I don't think cost is really the issue, but more of the reliability with each. A dual-mass flywheel will be smoother, and works fine if the engine isn't going all out as far as torque transfer, but it can have slipping between the masses, and this will create a lot of heat and can cause problems if abused. A single mass flywheel will be rougher, a noticeable difference in feel of the torque transfer, but can handle the abuse better.
I am going to take the marine officer examination, this video helps me a lot in studying the flywheel, which is part of ship's propulsion system, and not so much textbook describe it . Thank you so much for sharing . Favoured and subscribed.
Not necessarily, but it could potentially aid. If you are rev matching a downshift, it shouldn't matter. If you're upshifting, the revs should drop a bit quicker, but not a huge difference.
Yes, reducing weight on the flywheel would help you rev quicker in neutral (and in gear, but it would be less noticeable in gear). It's still a worthy modification, if you're looking to reduce rotational inertia, thus increase your useable power. On the flip side, if you plan on dragging your STI (dunno, some people), then a heavier flywheel may be a better option as it allows for more stored energy at launch. ("Free" energy, that doesn't use your 1/4 mile seconds to produce).
I don't know. Have you actually measured the g-force while engine braking to know it's reduced? Also, it could be any number of things - more friction anywhere along your driveline from any number of reasons. First I'd wonder though if there actually is a difference, I expect regardless it would be incredibly minimal.
Well, it's a bit complicated. A larger flywheel may make it easier to do a burn-out, as when you dump the clutch you would have more energy stored in the flywheel. However, since it takes more energy to accelerate a heavier flywheel, a lighter flywheel would allow for better acceleration (a greater force at the wheels). The engine torque remains the same, but the useable torque at the wheels will increase with a lighter flywheel.
4 Stages of any Internal Combustion Engine are: Suck - Squeeze - Bang - Blow In that order. I have no idea what this "compression, intake" nonsense you speak of is.
Yes sir, you are correct. Basically the dual mass will allow for a little more driver error without feeling so harsh, the single mass is less forgiving.
Hello, just wanted to point one thing out. From a physiscs and engineering standpoint (this was layman approach), there are a few misconceptions maybe.. torque of the engine doesn't smooth out.. it stays the same with or without flywheel. The thing that changes is that angular rate acceleration and jerk (rate of change of acceleration) are smoothed out. More inertia for same torque means less acceleration, or smaller change in angular rate. Even power distribution is theoretically the same if we are picky about it- energy input in time is the same. Details that are pretty important to note.
Think of the flywheel as a uniform rotating mass. It doesn't have timing, like the cams do geared to the crankshaft. Blue smoke means you're burning some oil. For older engines with worn piston rings, this is pretty typical.
I just want to add on a very important thing you forget to mention on your video. Car manufacturers solving problems with the flywheels. For example, they trying to make it descent size, because of keeping engine smooth, but it has to be very light, because engine have to be sharp in revving. It has to be light to keep revving faster, and when you changing gears, if it will be to heavy, it can slip the clutch, or damage gearbox. The perfect example, that I want to talk about, is a Lexus LF-A, because that V10 engine can rev from idle to max rpm, in 0.6 seconds ! Lexus engineers did it because of the flywheel, that's what I am assuming :)
+Kęstutis Karneckas The size of the flywheel and its weight do not directly concern what you're talking about. The only important characteristic of the flywheel that has to do deal with either the smoothness and the quick revving is the inertia, as explained in this video. In case of the LFA, I'm pretty sure the flywheel is very light, it's a necessary condition for quick changes in the rotational speed. What could help to have a smooth engine (but since I've never been in that car, I don't really know how smooth is it) is the V10 displacement: you have a combustion stroke every 72°. At least I would say that 552 hp helps a lot to rev pretty quickly a regular flywheel.
this might be a dumb question dos that mean that it is easier to power shift with a lighter flywheel. 2 is there a balance that should be had with lets say a performance car if a slightly heavier flywheel keeps the rpms up longer wouldn't that be a good thing or am i missing something. i know that a light flywheel is better for acceleration but it seems to also drop the revs during shifting how off am i?
Dont the pistons fire separately, so that they are at different points of the 4-stroke cycle? Wouldn't that balance out the jerkiness, or does the flywheel just make it even smoother?
AND in the flywheels case, I'm sorry that I can't work out the Torsion mathematically. But in the wheels case. The higher the torque on the drivetrain such as gears, flywheel, diffs and etc, the higher the torque (the turning force on a pivot) on the wheel. Hope that helps :)
Is it me or is it your looking very happy on that video. You had this unusual smile on the beginning of the video. On the previous videos I watched you hardly smile and look very serious :P I haven't watched all of the videos, I'm trying to LOL.
A question about flywheels, would an engine with smoother power strokes or heavier crank (say a v8, v10, or a v12) be able to get by without using a flywheel? Or maybe a lighter flywheel?
I just really like flywheels...
Engineering Explained you're not alone
whats your opinion on lightweight vs stock weight. i think stock weight adds a better kick whereas light weight will spin faster but lose energy while disengaging the clutch
hello thanks for your video. here's my question. since flywheel store inertia force and make power distribution evenly. why we still trying to reduce crankshaft weight？ what's the disadvantage that build flywheel weight into crankshaft ？ thank you for your answer.
Engineering Explained I like turtles
@@tylerdavid462 imagine saying 'thank you' for your answer and you don't get one lol
It's almost unbelievable what 5 or 6 years of practice can do. Love ya Jason!
I need to know the cost for a flywheel for a 1975 ?gmc truck please.
@@gailsmith5035 3.50
Nice job on explaining this. I learned about flywheels when I was in college. I had an old Mustang with a tooth missing on the flywheel and if the starter engaged in the wrong place, it stuck. I'm not much of a mechanic and after paying to have it towed and fixed once, I learned to fix it myself. After that, I kept a set of coveralls in the car and when it got stuck, I crawled under there, took off the starter, disengaged the little gear that popped out, hooked it back on and went on my merry way. My girlfriend (now wife) didn't like it too much but I thought it was pretty nifty....
Great and cool story!
Joel Gaslin You couldn't just stick a socket on the crank and rotate it? Easier than taking off the starter.
@@JesusTorres-zu8wz that's exactly what I was thinking 😂😂🤣🤣
@@JesusTorres-zu8wz let him be bro, let him feel good about himself 😂😂
That's actually pretty cool
humans are amazing creatures.
we still pollute the earth .....but we try to fix it???
Like the catalyst converter
a minimum percentage of humans. Most humans are mediocre (and that including me)
@@ImNotADeeJay Henry Ford could have done nothing if the farmer didn't produce his food or the factory worker didn't make his shoes or the construction worker didn't build his shelter so that he could sleep peacefully
Says the turd
Thanks for watching so many! I'd like to get into dual mass flywheels eventualy - Porsche uses both types, depending on the car. Definitely an interesting topic - can't promise it'll be anytime soon though. Cheers!
Thanks. For a lighter flywheel you can basically reverse the pros/cons I have listed. You'll get better throttle response, but you'll lose the smoothness. But for some engines, and small engines, this could be ideal.
will a lighter flywheel affect engine breaking?
I believe balancing a flywheel is done to remove some of the scratches that occur on the surface, making the contact better between the clutch disc and the flywheel.
Ending of the video is so abrupt. :/
its the smart thing to do because youtube only gives the poster credit if people watch the video to the end. Too many videos have long drawn out endings which people don't watch so they stop before the end.
At the end soon he said that’s what your starter motor attaches too a car started lol
@@ryans413 Not at all. "The flywheel is gonna be spinning in here and that's actually what the starter motor will attach to, to start the engine"
@@MsTiagosk8 shut up
@@cjonh808 cry me a river
Check out my videos on "rotational inertia" for more details. A search on my channel will pop them both up.
So the flywheel is simply a plate mainly to add weight to keep inertia on the crankshaft? This had me thinking, so I want a flywheel not too heavy so its easier to accelerate, but heavy enough to have a good inertia. Am I right?
Ricardo Rivero Exactly
Just buy a aftermarket one you cant go wrong with those there better than stock
Yes, that is what he was trying to explain
Why don't they make the flywheel with Moving mass? Like the mass can move from the centre to the edge of the wheel to increase or decrease inertia?
YUP! You literally nailed it. I'd imagine that your suggestion is exactly what most auto manufacturers are aiming for.
The way I picture the function of a flywheel in my head is like pushing someone on a playground swing. You're continually adding more and more energy to the system, but because your additions are not constant, steps would happen. But, because you've already added so much energy, the inertia alone is enough to drive the system, with obvious slight loss over a period of time. Obviously when you stop pushing someone, they don't come to a sudden stop from a full swing. They're using up the energy "reserved" in the inertia of the system.
Hi, your explanations are very great and very colorful and useful!
I just want to mention, that in compression state, the cylinder doesn't produce any torque, as you said correctly, but it consumes torque to compress the air.
Keep on!
Yes, that's the "requires more energy to rotate" part. More energy goes into rotating a flywheel, meaning less energy goes to the tires. You've got it right.
Ahh, you must have had the volume muted. Double check next time! :)
I know this video is super old but as someone who is a new service writer at a Mack/Volvo dealer (tons of experience in the trucking industry just not on the mechanical side), this is super helpful and well explained. Thank you.
Fresh fade at local black barbershop for you Mr 1970's
Great video!
i have to thank you because this is my 150th video i have watched and i learn so much from you and from other videos i think i can build a car now :P
Go for it
built ??
Built or not? Or let's unite to build it together...
Yes, several. Check out my website howdoesacarwork(dot)com and go to the FAQs.
Cheers
Umm, not really sure. Make sure it's good on transmission fluid, that would make it almost incapable of transferring any torque.
It's nearly analogous to a capacitor in electronics, which also store power and even out the voltage fluctuations, and a larger capacitor will smooth the voltage even more and store more power.
so it is a bit like a capacitor in electronics. nice video
I think it's the opposite. A capacitor continuously slowly takes up charge, and then releases it all in a quick burst. A flywheel, on the other hand, takes quick bursts of power and maintains a constant flow of the power outwards.
Eiad Hamwi I see, ty, so more like an Electromagnetic coil. trying to relate to what i already know ! :) ty again
***** Wait. You were actually right initially. Capacitors are used to regulate the flow of current. However, they're also used for quick bursts as well. So, yes, a flywheel is similar to a capacitor, but a capacitor has some uses that a flywheel doesn't.
I see your point, perhaps then not like a capacitor acting on it's own, but rather synonymous with the effect a capacitor can have on an output function when placed in parallel. I, too, couldn't help but bring the similarities between the flywheel and capacitors 'smoothing/filtering' effect on the output function.
Eiad Hamwi flywheels are pretty much exactly synonymous with capacitors in electronics and water towers in plumbing/fluid dynamics.
When the engine is running but the clutch is open the flywheel stores energy, which can then be transferred to the tires either quickly or slowly by releasing the clutch either quickly or slowly.
Engineering Emo
Money is unfortunately not an unlimited resource. Care to donate some upgrades?
The larger your flywheel, the smoother your power delivery. That's the trade off.
I was not sure at all, I went in as a biological/agricultural engineer, changed over to ME after my freshman year. Many universities will have courses and open houses going over the various engineering fields.
How did you change
It's the clutches/bands of the transmission switching gears.
Now I thought that having four pistons where each combustion stage is offset (not occurring at the same time) was what produced the equal distribution of torque. Could someone explain why that isn't enough and you still need a flywheel?
Because most of my related videos are me, and I'm pretty white (in complexion)!
When you say use a larger flywheel, does a heavier flywheel do the job without needing a large volume ?
The inercia of a body is dependent on both mass and geometry, so both would have an effect. However in the context mass is more significant.
Any rotational mass will add to how smooth the engine runs. The greater the mass, the more smoothly it will run, but it will also waste more energy, so you have to balance it. Also, the flywheel serves another purpose in manual cars, as something that engages with the clutch disc to connect the engine to the transmission.
Check out my videos on rotational inertia for more details. (It reduces rotational inertia = more power available).
Isn’t the fact that you have multiple cylinders, each with a differently timed power stroke, timed to continuously power the drive shaft even a bigger factor in smoothing out the energy spikes? This example is more for a single cylinder engine.
Hey basically I’m just trying to figure out how big of a deal it is that I have my cams finally lined up correctly, but my flywheel isn’t top dead center. Also, how do I fix that?
Not sure what you're asking?
I suppose it could be, yes.
I believe that some 12 cylinder engines can work without a flywheel (or with a very small flywheel) due to power stroke overlap and the desire to make it free revving?
I've got a video on KERS coming up, but I explain the method used by the GT-3 R Hybrid. Formula one uses ultracapacitors (I believe) and I briefly discuss this in the video I have coming up. The general idea remains the same though. Patience my friend! I get 5+ requests per day. :)
Slightly. If you were in neutral, it may be noticeable. If you were in gear you would probably not notice anything.
Search my channel for "cylinder deactivation." I have a video on it, that should be helpful. Also, I believe you can message me on the right column on my channel, it should say "send message" somewhere.
If you're in an automatic, it keeps on rolling. If you're in a manual, and in neutral, it keeps on rolling. If you're in a manual, and in gear, it will eventually stop, and consequently shut off your engine.
Haha I'm just messing anyways. I should be getting into upgrades (with videos) within a year or two.
Engine dyno.
You can get back to me with them, if you check out my video on rotational inertia I have a link to a useful site which breaks down the math for flywheels. I also prefer engineering over physics, though the discussion of theoretical physics is fascinating.
Not yet! And the word "yet" doesn't hold an incredible amount of weight coming from me, as my suggestions list is rather large. Thanks! :)
Yep.
How do you get a mini flywheel tractor running that has two flywheels on the tractor Bristol Pearso
I would like to hear your explanation of single and dual mass flywheels.
Your logic is sound; a heavy flywheel would keep the engine RPMs up longer than a lower weight flywheel, as it would take more energy to slow it down. Also (not really applicable to racing games) I've noticed that on my gf's car (a Mazda 3) the electronic throttle keeps the revs up, it takes longer to close the throttle valve when you let go of the gas pedal.
Umm, I guess it depends on how it's broken. If the teeth are gone then you won't be able to start, since the starter motor needs something to rotate. Flywheels don't seem to be a common failure point though, so I'd be cautious. If your car starts and feels fine, then your flywheel is likely fine.
What questions do you still have? It's a metal disk, there isn't much else to it other than its inertia is used to smoothen out the pulses of force applied to the crank.
how is this still the only video on youtube that explains what the hell a flywheel does
Interesting suggestion. I'd have a difficult time without any visuals though. What would you suggest talking about? I certainly couldn't explain how cars work haha.
Great explanation! I always have trouble wrapping my head around these technical and physics--related things, but now at least I understand the purpose of a flywheel! Thanks!
Heavier flywheels take more time to rotate as they have greater inertia. A ligher flywheel will allow the engine to accelerate more quickly, which will appear as a perceived increase in power. The engine makes the same power, but you have access more of it as less is lost in energy to rotate the flywheel.
He's my uncle, so I understand why you'd get this image in your head.
Since you're new I would suggest starting with my videos "engines - explained" and "car gears - explained" which should help clear some things up. Lower gears will have higher torque but lower top speeds. The flywheel rotates at a steady speed due to its mass, but the speed is certainly not constant. Any forces that act on it will slow it down or speed it up.
It would be correct to assume that a larger flywheel would reduce engine braking, as it has more inertia and would attempt to keep the car rolling. A lighter flywheel would be easier to stop, hence it would increase engine braking. The design is important also, where the mass is relative to the center of rotation.
Thank you! If you watch my older videos the camera quality isn't so hot. But yes, it does come down to money. My girlfriend was kind enough to buy me an excellent camera about a year ago.
It would probably stall more easily, yes. Fuel economy would be better because you no longer have to accelerate as much spinning mass.
Right, my example is using a single cylinder engine to explain the idea.
Yes, the do fire at separate points, but it still wouldn't run very smooth. The flywheel takes care of this problem.
Having a lightweight flywheel will increase engine response, and also because the engine comes down in RPM quicker, it means one can shift faster, and will increase acceleration, as well as have the benefit of obvious weight loss.
Having a light flywheel will increase the roughness of the engine, and it will make a manual transmission car easier to stall, thus requiring more slip in the clutch to get the car to go, and it will also be damaged easier if its lighter, as their is usually less metal overall to work with (if it's too thin/weak, the flywheel may explode from a bad shift, causing a bad day, or worse).
Hi there! Torque is basically a turning force. A great analogy is where you apply force on a rench connected to a bolt at a certian distance. Let say 100lbs of force apllied to a rench which is a foot long connected to a bolt. Times both of the values and units together to give a Torque of 100 ft lbs. higher the value, the higher the torque. Another e.g Gears, the radius (distance) of the gear times the force applied to the teeth.
You look like howard wolowitz with same field of interest
I don't think cost is really the issue, but more of the reliability with each. A dual-mass flywheel will be smoother, and works fine if the engine isn't going all out as far as torque transfer, but it can have slipping between the masses, and this will create a lot of heat and can cause problems if abused. A single mass flywheel will be rougher, a noticeable difference in feel of the torque transfer, but can handle the abuse better.
But my videos are from the US of A? You're welcome :)
As serious as Jeremy when he says "Powerrr!"
I am going to take the marine officer examination, this video helps me a lot in studying the flywheel, which is part of ship's propulsion system, and not so much textbook describe it .
Thank you so much for sharing . Favoured and subscribed.
Wow didn't know justin bieber knew about cars!
Not necessarily, but it could potentially aid. If you are rev matching a downshift, it shouldn't matter. If you're upshifting, the revs should drop a bit quicker, but not a huge difference.
Perhaps try topping off the fluid and see what happens. Might help.
...
How am I here?
Do you ever think of why we're here?
Yes, check out my videos on rotational inertia. :)
Yes, reducing weight on the flywheel would help you rev quicker in neutral (and in gear, but it would be less noticeable in gear). It's still a worthy modification, if you're looking to reduce rotational inertia, thus increase your useable power. On the flip side, if you plan on dragging your STI (dunno, some people), then a heavier flywheel may be a better option as it allows for more stored energy at launch. ("Free" energy, that doesn't use your 1/4 mile seconds to produce).
Bro, who are all these comments for?
@@russellg5022old UA-cam didn’t have direct replies
It would affect how smooth it is, as power delivery would have more pulses rather than a smooth delivery.
I don't know. Have you actually measured the g-force while engine braking to know it's reduced? Also, it could be any number of things - more friction anywhere along your driveline from any number of reasons. First I'd wonder though if there actually is a difference, I expect regardless it would be incredibly minimal.
It's connected to the crankshaft. It's started by the starter motor.
Yes, to start rotating the crank.
The rpm's are usually limited from the car's ECU so a lighter flywheel would not increase the rpm, but it makes you get to redline faster.
Thank you for the quick, clear, and concise expination.
Perfect explanation. Congrats!
Well, it's a bit complicated. A larger flywheel may make it easier to do a burn-out, as when you dump the clutch you would have more energy stored in the flywheel. However, since it takes more energy to accelerate a heavier flywheel, a lighter flywheel would allow for better acceleration (a greater force at the wheels). The engine torque remains the same, but the useable torque at the wheels will increase with a lighter flywheel.
4 Stages of any Internal Combustion Engine are:
Suck - Squeeze - Bang - Blow
In that order. I have no idea what this "compression, intake" nonsense you speak of is.
OktopusBoks sounds like the 4 stages of sex
Solid explanation. Thank you
Yes sir, you are correct. Basically the dual mass will allow for a little more driver error without feeling so harsh, the single mass is less forgiving.
Hello, just wanted to point one thing out. From a physiscs and engineering standpoint (this was layman approach), there are a few misconceptions maybe.. torque of the engine doesn't smooth out.. it stays the same with or without flywheel. The thing that changes is that angular rate acceleration and jerk (rate of change of acceleration) are smoothed out. More inertia for same torque means less acceleration, or smaller change in angular rate. Even power distribution is theoretically the same if we are picky about it- energy input in time is the same. Details that are pretty important to note.
Think of the flywheel as a uniform rotating mass. It doesn't have timing, like the cams do geared to the crankshaft. Blue smoke means you're burning some oil. For older engines with worn piston rings, this is pretty typical.
I just want to add on a very important thing you forget to mention on your video. Car manufacturers solving problems with the flywheels. For example, they trying to make it descent size, because of keeping engine smooth, but it has to be very light, because engine have to be sharp in revving. It has to be light to keep revving faster, and when you changing gears, if it will be to heavy, it can slip the clutch, or damage gearbox. The perfect example, that I want to talk about, is a Lexus LF-A, because that V10 engine can rev from idle to max rpm, in 0.6 seconds ! Lexus engineers did it because of the flywheel, that's what I am assuming :)
+Kęstutis Karneckas The size of the flywheel and its weight do not directly concern what you're talking about. The only important characteristic of the flywheel that has to do deal with either the smoothness and the quick revving is the inertia, as explained in this video. In case of the LFA, I'm pretty sure the flywheel is very light, it's a necessary condition for quick changes in the rotational speed. What could help to have a smooth engine (but since I've never been in that car, I don't really know how smooth is it) is the V10 displacement: you have a combustion stroke every 72°. At least I would say that 552 hp helps a lot to rev pretty quickly a regular flywheel.
Glad I could help you! Best of luck with ME.
this might be a dumb question dos that mean that it is easier to power shift with a lighter flywheel. 2 is there a balance that should be had with lets say a performance car if a slightly heavier flywheel keeps the rpms up longer wouldn't that be a good thing or am i missing something. i know that a light flywheel is better for acceleration but it seems to also drop the revs during shifting how off am i?
the heavy flywheel is good especially in hydroelectricity. the surging problem will not be experienced
Dont the pistons fire separately, so that they are at different points of the 4-stroke cycle? Wouldn't that balance out the jerkiness, or does the flywheel just make it even smoother?
AND in the flywheels case, I'm sorry that I can't work out the Torsion mathematically. But in the wheels case. The higher the torque on the drivetrain such as gears, flywheel, diffs and etc, the higher the torque (the turning force on a pivot) on the wheel. Hope that helps :)
Is it me or is it your looking very happy on that video. You had this unusual smile on the beginning of the video. On the previous videos I watched you hardly smile and look very serious :P I haven't watched all of the videos, I'm trying to LOL.
Thanks!
You're welcome!
Can you do an update please ?
Yes, the flexplate is simply a flywheel on an automatic gearbox. Essentially the same thing.
Yes, bikes are something that have been request a few time, I may eventually do a playlist on them. Cheers
A question about flywheels, would an engine with smoother power strokes or heavier crank (say a v8, v10, or a v12) be able to get by without using a flywheel? Or maybe a lighter flywheel?
Thats true. A Maserati V12 i once had my hands on had a very small lightweight flywheel with a size about 15 cm.
McLaren F1 has no flywheel just a ring gear for the starter pinion.