MY350Z.COM - Nissan 350Z and 370Z Forum Discussion

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-   -   jun or jwt or act pro light flywheel? (https://my350z.com/forum/engine-and-drivetrain/247866-jun-or-jwt-or-act-pro-light-flywheel.html)

MIAPLAYA 02-23-2007 08:10 AM


Originally Posted by miamimax96
Nope. It's aluminum with a steel friction plate.

Ugh just like the JWT then. That's what I was afraid of.

ACEMAN 02-23-2007 11:04 AM


Originally Posted by blueper4mancez
aceman when did you get your jun flywheel ?

I have had the JUN flywheel for almost 4 years. I had the Nismo clutch installed later.

Reason i went with Nismo and not something else, is due to the fact i had my transmission replaced. It was replaced under warranty and they installed the clutch at the same time.

Later
Todd

350Z_LEE 02-23-2007 11:05 AM

I have the jwt clutch, but I paired it with the act prolite flywheel and it I like it.

kwiker 02-23-2007 11:14 AM

Tilton....it's tons of fun.

sentry65 02-23-2007 01:25 PM


Originally Posted by kwiker
Tilton....it's tons of fun.

except in slow traffic ;)

JDMFairladyZ33 02-23-2007 01:31 PM


Originally Posted by kwiker
Tilton....it's tons of fun.


Don't listen to this guy he's a bad man giving bad advice. :icon8:

kwiker 02-23-2007 01:36 PM


Originally Posted by sentry65
except in slow traffic ;)

hahaha, seriously though, i was being very sarcastic while thinking about traffic to and from work every day. It takes some practice and constant awareness of what is going on. You never get accustomed to the Tilton, as soon as you think you have learned it, WHAMO...it is there to remind you that you can't handle it.

But i love it and i would never go with anything else...as long as i still have the choice. It revs like a bike, that siht is really intimidating when a mustang starts a revving contest.

sentry65 02-23-2007 01:53 PM

yeah, I dealt with a tilton for a year and a half trying to get used to it. Never did. It was when I started dreading driving the car, that I knew it was time to go to something else. It is fun though when you get a chance to go all out. Shifts are quick with how fast the engine can move to adjust to the new rpm after shifting

Devil Z 02-23-2007 04:45 PM

I have JWT Flywheel and Clutch, and TT, and it runs smooth as silk.

I test drove another car last Friday with the JUN flywheel, felt great, but then again his clutch was TOTALLY different and I hated it, not sure what it was though.

2005daytonaZ 02-23-2007 05:08 PM

where can you guys get the Jun flywheel at?

JDMFairladyZ33 02-23-2007 11:48 PM


Originally Posted by 2005daytonaZ
where can you guys get the Jun flywheel at?


I think performance nissan can get them. I would check with some of the vendors on this site.

Cloud 02-24-2007 12:14 AM

The JUN flywheel is a great flywheel, I think both jwt and act are aluminium...and the JUN is forged chromoly which is much better.

as far as I know, a couple of vendors I've contacted to find the flywheel last time didn't have any in stock. They had tried to order from JUN but JUN wasn't shipping anymore to the US.

Unless you know someone in Japan, I think it's pretty hard to find them. I think you can get them from Australia too...

Have a JUN coming off my car on March 7th but someone called first dibs on it already with 1 or 2 people in line if the deal falls through. Watch my post in the marketplace and if all the deal falls through it might be yours.

MIAPLAYA 02-24-2007 07:02 AM


Originally Posted by Cloud
The JUN flywheel is a great flywheel, I think both jwt and act are aluminium...and the JUN is forged chromoly which is much better.

as far as I know, a couple of vendors I've contacted to find the flywheel last time didn't have any in stock. They had tried to order from JUN but JUN wasn't shipping anymore to the US.

Unless you know someone in Japan, I think it's pretty hard to find them. I think you can get them from Australia too...

Have a JUN coming off my car on March 7th but someone called first dibs on it already with 1 or 2 people in line if the deal falls through. Watch my post in the marketplace and if all the deal falls through it might be yours.

The JWT is aluminum with a friction plate but the ACT Prolite and Streetlite are both forged chromoly like the Jun.

rocks 02-24-2007 07:14 AM

What is so bad about having a friction plate? Just wondering.

MIAPLAYA 02-24-2007 07:18 AM


Originally Posted by rocks
What is so bad about having a friction plate? Just wondering.

In the past I've had bad experiences with both my car and other cars I've worked on with the mounting bolts for the friction plate backing out, heat associated from the friction plate warping the aluminum flywheel, threads on the flywheel cross threading and stripping out, and generally it seems to result in more grinding/ambient "cement mixer" type noise at idle. Conversely every chromoly unit I've driven on the Z so far (or heard in person like the Jun) have been quieter at idle. There's no friction plate retaining hardware to back out, I've never seen the threads strip out, and the chromoly can be quickly and easily resurfaced instead of replacing a friction plate.

rocks 02-24-2007 07:56 AM

I kind of wondered about the bolts when i bought my jwt flywheel. I also like the friction plate, it seems a little easier to me to just replace it when i do the clutch instead of taking the flywheel off and taking it to the machine shop so i guess its a trade off. My jwt is not that noticeable at idle. I actually have to listen for it sometimes. You can hear it at partial throttle at around 2k-3k rpms though. Probably like 20% throttle, it doesnt bother me.

Armitage 02-24-2007 09:46 AM

MIA thanks for the info. I think it was Z1 that recommended the ACT clutches and flywheels. I may look into them when I go that route.

I need to drive a Tilton-equipped car just to see what its like...

miamifan3413 02-27-2007 06:08 AM


Originally Posted by MIAPLAYA
As far as I know the Fidanza flywheel is also chromoly one piece flywheel similar to the Jun. If thats the case and its weight is similar to the others that could be a potential option but I have no personal experience with it.

I think your correct....Fidanza is a quality product IMO, lots of members in the LS1 community use these & have great results with em.....not too sure about the 350z's....When I had a VQ35de I used mostly JWT & loved their products:)

nismology1 02-27-2007 07:08 AM


Originally Posted by miamifan3413
I think your correct....Fidanza is a quality product IMO, lots of members in the LS1 community use these & have great results with em.....not too sure about the 350z's....When I had a VQ35de I used mostly JWT & loved their products:)


Originally Posted by miamimax96
Nope. It's aluminum with a steel friction plate.

They also make steel flywheels, but according to them there's generally no weight savings.

JUN, ACT, and tilton are the only flywheels made from chromoly that i know of. If you want to use a convential diameter chromoly clutch/flywheel combo, JUN is the only choice.

BTW, JWT/fidanza = damn near identical. Some even say the JWT is a rebadged fidanza, and i believe it.

o snap its eric 02-27-2007 09:15 AM

i went with the act clutch and prolite flywheel =)


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