I’ve got unsprung clutch and single mass flywheel and it feels better. I feel it is better when I’m starting. But that’s just my preference. I don’t give my car extra gas and ride the clutch longer like most say is required. I feel it is smoother engagement… no bad noise at idle but is noise when under load at lower rpm’s so I just avoid doing that. But it’s on my 370z so maybe different cars may make more noise. I learned to drive manual without riding the clutch at all, like I know some people blip the throttle a bunch and are on the engagement point for a while.
so I know Turner Motorsports makes a lightweight weight flywheel, but they also get the option of pairing it with a 550i clutch. Would that be a bad set up since those clutch plates don’t have springs in them like the aftermarket ones?
I have a 6 speed zf swapped in to my e36, i used a lightweight aluminum single mass flywheel and a non-sprung 6 puck clutch along with 3.23 lsd in it. I don't daily drive that car and I tend to either stall it or spin the rear wheels trying to take off. even got pulled over for it once and i had to explain to the officer I typically don't drive it and its a very track oriented car. Luckly, he just let me off with a warning. I offered to let him drive it, but he declined lol. compared to my 6 speed e46 330xi I still have the stock clutch in it with stock 3.07 gearing but i do plan on going a little bit lighter single mass flywheel but with a sprung clutch and i have the 3.46 ratio differentials from a 325xi to go in it when i do so. hopefully compensate for the lighter flywheel and pick up more acceleration and get out of the hole faster. the e46 really has no issues as is just slowly letting out the clutch and idling Forword and I still like to be able to do that especially in stop and go traffic. there is no way I could do that in my e36.
Hi there great video help. So a single mass steel flywheel for everyday driving would offer better drivability less chatter etc if Im hearing right Thanks in advance
No. It will create more chatter than DMF. Only advantage is you can put more power down on a SMF and its cheaper. As far as everyday driveability, DMF is the way to go if you're stock
Hey does anyone know where I can get some info on an e46 318ti swap with an m54b30? Looked around a lot but can't find if the manual transmission will fit on the 6 cylinder and if it does what parts will i be expecting to change. Really enjoy this car and don't plan to go through all the effort to fix it. Cheers
I'm ready to do a clutch job due to chatter on my worn spring dual mass flywheel in my 2004 325Ci 5 speed and Valeo makes a single mass conversion kit however it says it fits e46's built up to 9/2003. Mine was built 2/2004 so I'm still trying to figure out why Valeo says it won't fit since the 2003 and 2004 M54 2.5L and Getrag 5 speed are identical.
As long as its a m54 it should fit. If you got the time, space and maybe a different car for that time, take out the old parts and order the new ones to comparr them. If it doesnt fit refund it
I installed a steel single mass flywheel on my E46 330Ci weighing 5,5kg (or about 12lbs) with a sprung clutch and it was the worst decision ever. Can't recommend it unless you put it on a track car. The noise the gearbox makes under load is insane. Some engine/transmission combinations can't deal with this modification as well as others. VALEO makes SMFs that are probably suitable for daily driving but are just as heavy as the stock DMF.
It's not cheaper considering you have to buy the whole kit for this swap, and then god knows where to buy replacement clutch disks for your specific kit...
Pretty terrible explanation. I only sat through the whole thing to see just how many things he would pull out of his rear end. Vibration to the flywheel has nothing to do with cylinder firing order. It's from the basic fact that an engine works by putting torque on the output shaft 10s to 100s of times per second. The weight of the flywheel is there to turn that repeated hammering on the shaft into more of a smoother consistent rotation. Practically speaking the weight of the flywheel has no impact on horsepower whatsoever. When you reduce its weight, all you're doing is trading some smoothness for the ability of the engine to rev up and down more freely when not under load, which allows for quicker rev matching, meaning you can potentially save a fraction of a second between shifts. If you understand that is what you're getting, then yes consider replacing your flywheel. Just don't expect it to give you even a tiny amount of extra power magically out of nowhere.
@@kkkim8096 I'm not. Power is never "lost" in a mechanical system unless it is lost TO something. So where are the supposed losses from the flywheel going? To friction? To heat? The power temporarily stored in the flywheel doesn't just disappear. It goes to the same place it would be going if there was no flywheel there at all.
@@jiijijjijiijiij You misunderstand power and energy. Energy is not store only at "STEADY STATE". if rotational speed is changing in time, energy is spent to accelerate the flywheel mass.
faster car depending on how much weight you reduce. but no extra horsepower dude. SMF on my Opel Astra turbo 2.0. a bit of extra noise and a somewhat noticeable vibration. So removing those kilos along with replacing hood with carbon fiber bonnet along with other weight reductions. No increase in ore horse power obviously but hell yea more speed.
![DO NOT MODIFY YOUR BMW E46 // TOP 5 REASONS WHY YOU SHOULD NOT MODIFY YOUR BMW E46 [2021]](/img/n.gif)
That dual mass flywheel pays for the nice polished granite floors in the dealership.
Man I just love how you explain things, reminds me of my grandad haha
I’ve got unsprung clutch and single mass flywheel and it feels better. I feel it is better when I’m starting. But that’s just my preference. I don’t give my car extra gas and ride the clutch longer like most say is required. I feel it is smoother engagement… no bad noise at idle but is noise when under load at lower rpm’s so I just avoid doing that. But it’s on my 370z so maybe different cars may make more noise. I learned to drive manual without riding the clutch at all, like I know some people blip the throttle a bunch and are on the engagement point for a while.
Great video mate
Nice video, mate! Thanks!
so I know Turner Motorsports makes a lightweight weight flywheel, but they also get the option of pairing it with a 550i clutch. Would that be a bad set up since those clutch plates don’t have springs in them like the aftermarket ones?
I have a 6 speed zf swapped in to my e36, i used a lightweight aluminum single mass flywheel and a non-sprung 6 puck clutch along with 3.23 lsd in it. I don't daily drive that car and I tend to either stall it or spin the rear wheels trying to take off. even got pulled over for it once and i had to explain to the officer I typically don't drive it and its a very track oriented car. Luckly, he just let me off with a warning. I offered to let him drive it, but he declined lol. compared to my 6 speed e46 330xi I still have the stock clutch in it with stock 3.07 gearing but i do plan on going a little bit lighter single mass flywheel but with a sprung clutch and i have the 3.46 ratio differentials from a 325xi to go in it when i do so. hopefully compensate for the lighter flywheel and pick up more acceleration and get out of the hole faster. the e46 really has no issues as is just slowly letting out the clutch and idling Forword and I still like to be able to do that especially in stop and go traffic. there is no way I could do that in my e36.
Hey, I have recently bought 330xi, lmk what was your final upgrade on gearbox and what performance did you manage to suck out of it. G thanks
Every one of these guys from downundah makes me want to move. I want to hang out at this dudes shop and just talk.
Hey a huge big 👍 really good video.
Great video man!
Which is the right way side to fit the dual mass clutch plate.
BMW's sixes have very little to no vibration from the crank. As I see it, they don't need dual mass flywheels.
Great explanation 💪💪💪
Do you have any recommendations for a good 6 speed sprung plate clutch to match a steel SMF?
I just replaced my E46 clutch and I went for SMF, sure shot.
Did you convert to your DMF to SMF?
@@rommelekstrom1973
Mate! You're replying a question to a comment, which literally answers your question. 🤦🏻♂️
Got a parts number? Need to replace mine, e46 318i with m43 engine, 5 speed manual
Shudders a lot?
Fantastic video!
heavier flywheel does nto consume power. It only slows RPM change of the crankshaft.
Hi there great video help. So a single mass steel flywheel for everyday driving would offer better drivability less chatter etc if Im hearing right Thanks in advance
No. It will create more chatter than DMF. Only advantage is you can put more power down on a SMF and its cheaper. As far as everyday driveability, DMF is the way to go if you're stock
Saabs balance shafts in the 2,3 liter engine looks kinda cool now in retrospective,,, no need for dmf that fails,,, 😂
Hey does anyone know where I can get some info on an e46 318ti swap with an m54b30? Looked around a lot but can't find if the manual transmission will fit on the 6 cylinder and if it does what parts will i be expecting to change. Really enjoy this car and don't plan to go through all the effort to fix it. Cheers
Can i convert Dual mass flywheel of grand starex to single mass flywheel
Link is broken :(
Mine dmf is probably shot and i will install M20 flywheel and clutch.
Hello, is it good to put on my bmw e46 318D.116KS single mass flywheel?
great video
I'm ready to do a clutch job due to chatter on my worn spring dual mass flywheel in my 2004 325Ci 5 speed and Valeo makes a single mass conversion kit however it says it fits e46's built up to 9/2003. Mine was built 2/2004 so I'm still trying to figure out why Valeo says it won't fit since the 2003 and 2004 M54 2.5L and Getrag 5 speed are identical.
As long as its a m54 it should fit. If you got the time, space and maybe a different car for that time, take out the old parts and order the new ones to comparr them. If it doesnt fit refund it
I installed a steel single mass flywheel on my E46 330Ci weighing 5,5kg (or about 12lbs) with a sprung clutch and it was the worst decision ever. Can't recommend it unless you put it on a track car. The noise the gearbox makes under load is insane. Some engine/transmission combinations can't deal with this modification as well as others. VALEO makes SMFs that are probably suitable for daily driving but are just as heavy as the stock DMF.
It's not cheaper considering you have to buy the whole kit for this swap, and then god knows where to buy replacement clutch disks for your specific kit...
Why dual mass flywheels are not subject of knock-offs from China
Pretty terrible explanation. I only sat through the whole thing to see just how many things he would pull out of his rear end. Vibration to the flywheel has nothing to do with cylinder firing order. It's from the basic fact that an engine works by putting torque on the output shaft 10s to 100s of times per second. The weight of the flywheel is there to turn that repeated hammering on the shaft into more of a smoother consistent rotation. Practically speaking the weight of the flywheel has no impact on horsepower whatsoever. When you reduce its weight, all you're doing is trading some smoothness for the ability of the engine to rev up and down more freely when not under load, which allows for quicker rev matching, meaning you can potentially save a fraction of a second between shifts. If you understand that is what you're getting, then yes consider replacing your flywheel. Just don't expect it to give you even a tiny amount of extra power magically out of nowhere.
you're mistaken. The engine power is a little bit lost because of flywheel mass when the engine rpm changes (in most of the time).
The torque transferred from the crank to the transmission is reduced because of the inertia of the flywheel. That's the basic stuff in dynamics.
@@kkkim8096 I'm not. Power is never "lost" in a mechanical system unless it is lost TO something. So where are the supposed losses from the flywheel going? To friction? To heat? The power temporarily stored in the flywheel doesn't just disappear. It goes to the same place it would be going if there was no flywheel there at all.
@@jiijijjijiijiij You misunderstand power and energy. Energy is not store only at "STEADY STATE". if rotational speed is changing in time, energy is spent to accelerate the flywheel mass.
The energy is not lost,but the kinetic energy of the flywheel is "increased!!!!!" That's the place where the additional energy is gone!
faster car depending on how much weight you reduce. but no extra horsepower dude. SMF on my Opel Astra turbo 2.0. a bit of extra noise and a somewhat noticeable vibration. So removing those kilos along with replacing hood with carbon fiber bonnet along with other weight reductions. No increase in ore horse power obviously but hell yea more speed.