Lightweight or Mid-weight flywheel?

OptionZero · 05-06-2020, 03:00 PM

Slow revs are one of the biggest downsides to our engine; the lighter flywheel really changes the car. Even the lightest widely available ones are daily able

i think the only one that wouldn't be would be something like the Tilton 7 lb one which is for race cars and such

Rusty · 05-06-2020, 03:45 PM

Quote:

Originally Posted by OptionZero

Slow revs are one of the biggest downsides to our engine; the lighter flywheel really changes the car. Even the lightest widely available ones are daily able

i think the only one that wouldn't be would be something like the Tilton 7 lb one which is for race cars and such

That style is like a light switch. Either in or out. No inbetween.

Dentt42 · 05-07-2020, 06:31 AM

Quote:

Originally Posted by OptionZero

Slow revs are one of the biggest downsides to our engine; the lighter flywheel really changes the car. Even the lightest widely available ones are daily able

i think the only one that wouldn't be would be something like the Tilton 7 lb one which is for race cars and such

The response on my car was abysmal with the stock one. It was like they were trying to hinder performance where it wasn’t necessary.

Whjaxn17 · 05-07-2020, 08:43 AM

Quote:

Originally Posted by Dentt42

The response on my car was abysmal with the stock one. It was like they were trying to hinder performance where it wasn’t necessary.

Drivability and quiet. The extra weight of the OEM dual mass makes it easier to drive, specifically from a stop and has a urethane dampener that keeps it from chattering.

Dentt42 · 05-07-2020, 09:17 AM

Quote:

Originally Posted by Whjaxn17

Drivability and quiet. The extra weight of the OEM dual mass makes it easier to drive, specifically from a stop and has a urethane dampener that keeps it from chattering.

I know what they were thinking it would accomplish, but my EXEDY kit is significantly easier to drive, and it's got a solid flywheel that's 10 lbs. lighter. It doesn't have that weird over-center feel pressing and releasing the pedal, and feathers out smoothly even when I'm half-assing it expecting a little bit of bucking. I admit the pedal feel was likely partly due to wear, but like I noted in my earlier post, I (personally) don't feel any need to install an RJM pedal with the EXEDY kit as it functions now.

The only increase in noise is the tiniest bit of rattle when sitting at idle from the bouncing clutch fingers. You can hear it running the car next to a wall, such as pulling through a drive-through. It's got close to zero chatter, and I'd be so bold as to say less than the stock (maybe stock replacement) clutch that was in there before.

When I had my previous G37 I had them install a solid nodular flywheel from Z1 and a new stock replacement clutch. It rattled badly enough that I thought something was wrong at first, and then later found just life with these cars. Point is, if a specialty company like EXEDY can built a street clutch set that performs better in very way while remaining very easy to drive and stay quiet, I have no idea why a company like Nissan with millions in R&D could not.

Whjaxn17 · 05-07-2020, 09:38 AM

Quote:

Originally Posted by Dentt42

I know what they were thinking it would accomplish, but my EXEDY kit is significantly easier to drive, and it's got a solid flywheel that's 10 lbs. lighter. It doesn't have that weird over-center feel pressing and releasing the pedal, and feathers out smoothly even when I'm half-assing it expecting a little bit of bucking. I admit the pedal feel was likely partly due to wear, but like I noted in my earlier post, I (personally) don't feel any need to install an RJM pedal with the EXEDY kit as it functions now.

The only increase in noise is the tiniest bit of rattle when sitting at idle from the bouncing clutch fingers. You can hear it running the car next to a wall, such as pulling through a drive-through. It's got close to zero chatter, and I'd be so bold as to say less than the stock (maybe stock replacement) clutch that was in there before.

When I had my previous G37 I had them install a solid nodular flywheel from Z1 and a new stock replacement clutch. It rattled badly enough that I thought something was wrong at first, and then later found just life with these cars. Point is, if a specialty company like EXEDY can built a street clutch set that performs better in very way while remaining very easy to drive and stay quiet, I have no idea why a company like Nissan with millions in R&D could not.

Mine sounds like a diesel idle

but the 19 or 20 models are now coming with an Exedy clutch. I don't know how deep the changes go, so not sure if the flywheels are any lighter or different in any way, though.

Kamari · 02-06-2021, 06:35 PM

Quote:

Originally Posted by boosted180

I'm about to have a shop do my clutch/ flywheel/ CSC and trying to decide to go with a lightweight or "mid-weight" flywheel. Is the only disadvantage of the lightweight flywheel the noise? I was also told that the midweight is a waste of money to either stay stock or go to the lightweight one.

Any of you have the mid-weight and do you like it and did you feel a difference?

Thanks.

I have not used the car for anything other than street driving in recent years, but plan to get back to the track at some point. It doesn't have any big power mods and I will keep it that way.

What was your lead time in ordering the hardware? I'm stuck in the same situation with a bad CSC & clutch, and the recommendation is to swap out the flywheel as well. Problem is that I've looked at Z1, ZSpeed and a couple others but everybody is on back order. Meanwhile my car is sitting in a shop with a mechanic waiting on a decision. I'll be damned if I'm going to pay a grand for an OEM flywheel and another 1050 for a OEM clutch.

wdkwang · 02-06-2021, 07:16 PM

I haven't ordered it yet so I can't provide a lead time. However, I'm certain I'll be purchasing the ZSpeed kit based on all the reviews I've been reading.

JARblue · 02-07-2021, 09:48 AM

I specifically did not buy the "quiet disc" clutch package from Joe and asked for a light flywheel (ended up at 17lbs). I am disappointed that my clutch does not chatter at all

Rusty · 02-07-2021, 12:21 PM

Quote:

Originally Posted by JARblue

I specifically did not buy the "quiet disc" clutch package from Joe and asked for a light flywheel (ended up at 17lbs). I am disappointed that my clutch does not chatter at all

filip00 · 08-22-2024, 03:44 AM

I really shouldn't have found this thread. Now I'm thinking about upgrading the flywheel next year or the year after, when I'll be upgrading the clutch.

projectpanda · 08-22-2024, 06:47 AM

Quote:

Originally Posted by filip00

I really shouldn't have found this thread. Now I'm thinking about upgrading the flywheel next year or the year after, when I'll be upgrading the clutch.

a lightweight flywheel really changes who the engine feels. I've got a 12lb flywheel from ZSpeed in my car. No drive-ability issues. Very easy to drive.

filip00 · 08-22-2024, 08:03 AM

You're not helping me

I already felt the car getting nimbler by putting a shorter final drive on it, and I'm betting this would be like another +1....and it seems like it's on the list now

05-06-2020, 03:00 PM	#1 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,270 Drives: 15 370Z Nismo 6MT Rep Power: 214102	Slow revs are one of the biggest downsides to our engine; the lighter flywheel really changes the car. Even the lightest widely available ones are daily able i think the only one that wouldn't be would be something like the Tilton 7 lb one which is for race cars and such __________________ OptionZero Build Thread

02-06-2021, 07:16 PM	#8 (permalink)
wdkwang Track Member Join Date: Nov 2010 Location: N/A Posts: 899 Drives: slidewayz Rep Power: 22	I haven't ordered it yet so I can't provide a lead time. However, I'm certain I'll be purchasing the ZSpeed kit based on all the reviews I've been reading. __________________ Powerhouse Amuse \| K&N Typhoon Intakes \| MotorDyne ART Pipes \| Borla Catback Exhaust \| B&M Short Shifter \| Intake Ducts \| Ichiba 25mm F/R Spacers \| Carbon Fiber Interior Vinyl Wrap \| Tints \| 10000k HIDs \| Vtak, yo!

02-07-2021, 09:48 AM	#9 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 45 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684442	I specifically did not buy the "quiet disc" clutch package from Joe and asked for a light flywheel (ended up at 17lbs). I am disappointed that my clutch does not chatter at all Rusty and Hotrodz like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

08-22-2024, 03:44 AM	#11 (permalink)
filip00 Track Member Join Date: May 2021 Location: slovenia Posts: 592 Drives: 370z pack Rep Power: 125429	I really shouldn't have found this thread. Now I'm thinking about upgrading the flywheel next year or the year after, when I'll be upgrading the clutch. __________________ ride epic drive epic

08-22-2024, 08:03 AM	#13 (permalink)
filip00 Track Member Join Date: May 2021 Location: slovenia Posts: 592 Drives: 370z pack Rep Power: 125429	You're not helping me I already felt the car getting nimbler by putting a shorter final drive on it, and I'm betting this would be like another +1....and it seems like it's on the list now Rusty and sx moneypit like this. __________________ ride epic drive epic

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