single mass or dual mass flywheel

[coopermidnight]

I've read people saying they got rid of rev hang with tuning.. Is that wrong?

In case the other posters haven't made it clear yet, I'll give you the explanation. I learned this a few months ago when I asked KTuner why my revs were dropping so slowly.

Rev hang: After you let off the throttle, the revs don't start to drop immediately, even if you clutch in. This is a software problem. A tune can eliminate rev hang, meaning there is (nearly) 0 delay between the pedal depressing and the needle starting to drop.
Rev drop: This is how long it takes for the RPM to actually go down. Even after eliminating rev hang, this is painfully long at higher RPMs. This is a hardware problem. So far, we've got a few posts on this forum reporting much more satisfying rev behavior after changing to a single-mass flywheel.

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[stickshiftnewbie]

Does switching to single mass flywheel is bad for the tranny and will be a problem for emissions?

 

[BoostedDreams]

Does switching to single mass flywheel is bad for the tranny and will be a problem for emissions?

Have you been reading the responses ?

 

[REBELXSi]

Hell, I was thinking 100k on flywheel wasn't that bad! Wasn't sure what all the comparing was myself. If my new clutch lasts 60k without slipping I'll be a happy man!

Guess I have high expectations. My last car went nearly 200k on the stock clutch/flywheel before being totalled. It wasn't a very powerful car but I drove the piss out of it.

 

[PowerPerLiter]

While I know very little about flywheels, I have to say you're probably being very negative about your estimate. You're saying most owners will have to change their flywheels before 100k? That's ridiculous.

I am actually being on the generous side of what I was seeing. This doesn't necessarily apply directly to us yet but the range for all the other high torque dual mass equipped cars (ie: scoobys gtis bmw tdi's etc) is 50k-100k miles before they start rattling/failing....like I said read up on them, google dual mass flywheel noise and you will find all kinds of examples.

there are quite a few of the 10th gen guys that have reported strange rattling after doing cdv delete because this stresses the dual mass. May be the reason why e-man and d-rob recommend against the cdv deletion. Somebody tag derek cause i dont know his user name off hand but maybe he can weigh in on this.

I want to not be negative and in fact I am hopeful the opposite will prove true but we dont have alot of high mileage examples yet.

 

[repeet]

Ok, so I did a search and watched the videos about Dual Mass failure sounds. Luckily at 58,000 miles my Si hasn't developed that sound yet.

Next I watched videos about why Dual Mass flywheels exist, and how they work. Like this:


I'm not impressed. There were four cylinder engines long before there were dual Mass flywheels. It looks to me like they are either covering up for short cuts they made elsewhere, or adding a safety factor for unskilled drivers.

So which of the two is the reason for the use in XGen Civics. I would hope its the second, but I fear that it may be the first.

I'm waiting curiously for reports to show up about Dual Mass failures in our tenth gens before I have to replace my clutch, and maybe flywheel.

Will Honda recommend the replacement of the Dual Mass flywheel when our clutches wear out? Or will the Dual Mass flywheels "wear out" first.

And worse. Will the replacement of our Dual Mass flywheels with a single mass flywheel cause damage to the transmissions that they've installed in our Civics?

Until we collect our own stats, compiled from the failures that we experience, but paid for with our own wages, we are at the mercy of the corporate rhetoric.

 

[5th 3l3ment]

Never heard that. You'll be fine.

Can i just use the updated fly wheel instead of buying a complete clutch system

 

[BoostedDreams]

Can i just use the updated fly wheel instead of buying a complete clutch system

Which updated flywheel? The weak point is the stock clutch, not flywheel. If you have the money, get a SMF with a new clutch

 

[5th 3l3ment]

Which updated flywheel? The weak point is the stock clutch, not flywheel. If you have the money, get a SMF with a new clutch

Won’t that cause a lot of unwanted noise in reverse? Or any other gear? Im asking because information is limited on these cars. Im modded don’t want my cars tranny or engine dumping me on the side of the road. Due too my lack of knowledge

 

[BoostedDreams]

Won’t that cause a lot of unwanted noise in reverse? Or any other gear? Im asking because information is limited on these cars. Im modded don’t want my cars tranny or engine dumping me on the side of the road. Due too my lack of knowledge

When i had the spec steel flywheel it wouldn’t make any additional noise while driving. Only a slight chatter in neutral. If you want it as quiet as stock I would keep the stock flywheel and get like a FX400

 

[86salmon]

What about Exedy?

• OEM manufacturer
• They have smf available
• They say it's safe with stock flywheel

So far I only know of one user on the forums though...

@LilToTo17 how's the clutch holding up?

 

[BoostedDreams]

What about Exedy?

• OEM manufacturer
• They have smf available
• They say it's safe with stock flywheel

So far I only know of one user on the forums though...

@LilToTo17 how's the clutch holding up?

I hear the torque levels are weak. Gotta do your research.

 

[86salmon]

I hear the torque levels are weak. Gotta do your research.

It's supposedly very underrated. That's why I'm asking the one user I know of. He's running W1 and I think flex with Exedy stage 2 clutch and SMF

 

[fenix-silver]

It's supposedly very underrated. That's why I'm asking the one user I know of. He's running W1 and I think flex with Exedy stage 2 clutch and SMF

I was chatting w/ Exedy and the guy seemed pretty confident that the stage 1 option would be fine for any "stage 1" type power. I'm not sure that I'm interested in using the DMF though since it's an unsprung disc. I know you can use it w/ their SMF, but I'm worried about driveability. Plus, at this point my stock DMF is probably toast, so if I'm replacing the DMF, I'm not putting another one back in.

 

[5th 3l3ment]

What about Exedy?

• OEM manufacturer
• They have smf available
• They say it's safe with stock flywheel

So far I only know of one user on the forums though...

@LilToTo17 how's the clutch holding up?

They make all the parts for these high dollar items i seen that too. Hence why I’m going Exedy stage 2 kit & using the oem Dmf

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