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Getting a JWT clutch/flywheel installed right now

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Old Mar 2, 2011 | 03:43 AM
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From: Scottsdale/coyote drophouse
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Originally Posted by Mcutali
hmm obvious lightweight flywheel is less rotational mass, which means redline quicker. got the clutch kit and flywheel new for $770, 3 years ago, 1200 is a rip off. installed it myself.. i barely push the clutch in an it engages. no one can get outa first in my car with out looking retarded, well except for me.

Please note I said 1200 included labor.
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Old Mar 2, 2011 | 05:20 PM
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Originally Posted by bmccann101
Please note I said 1200 included labor.
ah understandable
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Old Mar 2, 2011 | 05:33 PM
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Please share your driving impressions OP. And $700 installed is an incredible deal, stock clutch with no flywheel + labor would have been $1000.
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Old Mar 2, 2011 | 06:12 PM
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i saw them drop the tranny.. the stock clutch and flywheel didnt look that bad... however there was this black dust all over the place.. I should have taken a pic.. but it was like black grinded up debri all over, it looked like ash.. Im not sure if this was normal or not.. it was all over the clutch disk and pressure plate.. it was also all over the throwout bearing.. there was tons of it! could that mean that the clutch was 'burnt'?

The car will be ready tomorrow morning, and i can give you my first impressions...
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Old Mar 2, 2011 | 06:14 PM
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Originally Posted by Mcutali
hmm obvious lightweight flywheel is less rotational mass, which means redline quicker. got the clutch kit and flywheel new for $770, 3 years ago, 1200 is a rip off. installed it myself.. i barely push the clutch in an it engages. no one can get outa first in my car with out looking retarded, well except for me.
How much of a difference did u notice in acceleration..? night and day difference? or not so much?
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Old Mar 3, 2011 | 01:06 PM
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From: Scottsdale/coyote drophouse
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the people demand new posts.
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Old Mar 3, 2011 | 08:27 PM
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ok heres my update...
I HATE IT.

The clutch is SOFT.. and it engages very low.
It grabs well however...
The flywheel is Extremely noisy people... I did NOT notice any sort of power gain..and i really wish that I would have stuck with an OEM flywheel..
Sure the engine revs a little smoother and a tad bit quicker.. but the Extra NOISE is NOT worth the trouble.. it is LOUD In Every single gear revving under 2k rpm. Its a very noisy rattle.. Ive only driven it around for a day and I am already considering having it replaced..

If i could go back in time... I would have stuck with an oem flywheel. This is simply my opinion. Hope it helps others out there who are searching for a review of the JWT clutch and flywheel setup.
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Old Mar 3, 2011 | 08:31 PM
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From: Scottsdale/coyote drophouse
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Sorry man. Yeahnot sure if ur modded orbit but that lwfw is pretty pointless is ur not modded to the hilt IMO.
I'm prepared to deal w it..and I'm very picky about noise too.
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Old Mar 7, 2011 | 07:59 PM
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Yeah, I hated my JWT flywheel too, might go back to the OEM flywheel when I drop the new engine in.

Are you having any chatter or vibration when you're letting off the clutch and about to engage?
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Old Mar 7, 2011 | 10:20 PM
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This is another example of people wanting performance parts but OEM luxuries.

I'm not bias at all even though i have this.

It's not that loud. OEM had chatter. this unit has chatter, the sound is not the problem.

it vibrates when you in a HIGH gear and LOW rpm. you shouldn't be doing that anyways, i believe its bad for your engine bearings. It doesn't vibrate in 1st gear. Idk but i have no problems with my JWT unit. i just think people think they actually get HP gains or something. Look up what a lightweight flywheel really does before buying stuff. I still recommend this unit to anyone.
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Old Mar 7, 2011 | 11:17 PM
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I have this setup, been driving with it for about a month now. Honestly, the chatter is not bothersome at all to me. It was kinda in the back of my head when i first drove around with it, but i rarely notice anymore. Sorry you are having such a bad experience with it.
Ill have to agree with SuperBlack350z
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Old Mar 8, 2011 | 04:06 AM
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Originally Posted by SuperBlack350z
This is another example of people wanting performance parts but OEM luxuries.

I'm not bias at all even though i have this.

It's not that loud. OEM had chatter. this unit has chatter, the sound is not the problem.

it vibrates when you in a HIGH gear and LOW rpm. you shouldn't be doing that anyways, i believe its bad for your engine bearings. It doesn't vibrate in 1st gear. Idk but i have no problems with my JWT unit. i just think people think they actually get HP gains or something. Look up what a lightweight flywheel really does before buying stuff. I still recommend this unit to anyone.
+1

I have a Competition Stage II clutch and flywheel and get some chatter, but it isn't all the bad. OP, just change your driving style a bit, ie. launch above 2k or where ever your chatter stops and like Superblack350z said, don't let your RPMs drop too low in a high gear. As for the engagement point, you should be able to have the shop raise the point for you. Just give it some time and a louder exhaust doesn't hurt either

Last edited by abarclay; Mar 8, 2011 at 04:09 AM.
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Old Mar 8, 2011 | 05:25 AM
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From: Scottsdale/coyote drophouse
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i hear ya.. it makes the car feel less "Nice".. but i agree its a far more racy part than most assume when they buy it.

Im doing test pipes, a pop charger, a Kinetix Velocity plenum and the magnaflow x pipe install at the same time w my JWT clutch n fly next week...., so it will already be loud as hell and smell like gas... I made sure to go all out before dealing w a chattery clutch haha. its like punching yourself in the face so you stop paying attention to your stubbed toe.
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Old Mar 8, 2011 | 08:56 AM
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plus it revs pretty quick with a free flowing exhaust. here's my old video.

http://smg.photobucket.com/albums/v3...t=DSCF2485.mp4
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Old Mar 8, 2011 | 10:05 AM
  #35  
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Originally Posted by venmichaels
ok heres my update...
I HATE IT.

The clutch is SOFT.. and it engages very low.
It grabs well however...
The flywheel is Extremely noisy people... I did NOT notice any sort of power gain..and i really wish that I would have stuck with an OEM flywheel..
Sure the engine revs a little smoother and a tad bit quicker.. but the Extra NOISE is NOT worth the trouble.. it is LOUD In Every single gear revving under 2k rpm. Its a very noisy rattle.. Ive only driven it around for a day and I am already considering having it replaced..

If i could go back in time... I would have stuck with an oem flywheel. This is simply my opinion. Hope it helps others out there who are searching for a review of the JWT clutch and flywheel setup.
I know it's a little late now, but maybe you should have considered a heavier flywheel. From my readings is seems the lighter you go, the more chatter. JWT's flywheel is really light (about 15 lbs), in comparison to stock weight at 27.6 lbs. Exedy offers their flywheel at 19.6 lbs and Southbend at about 20 lbs. Since we're not talking about huge weights here, I would imagine every pound makes a difference. I'm not saying it's not going to chatter more than stock with Exedy or Southbends flywheels, just less maybe. Good luck with your situation.
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Old Mar 8, 2011 | 10:08 AM
  #36  
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From: Scottsdale/coyote drophouse
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OEM is a dual mass.

The reduced weight is not what casues the chatter, rather the lack of the dual mass loaded multiple parts in the OEM that counteract gearbox noise waves. The stock actually still chatters too.

An after market single mass weighing the same as the OEM dual mass will still chatter. I considered the southbend until i learned this as well.... if its gonna chatter, at least get the lightest one to suit your driving style.

Ull be fine.

Last edited by bmccann101; Mar 8, 2011 at 10:09 AM. Reason: clarification
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Old Mar 8, 2011 | 10:50 AM
  #37  
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I have been autocrossing for ~5 years and got the clutch/flywheel combo last year.

Good:
Rev matching and heel-toe-ing is much easier.

Shaved about half a second off of my test & tune course time. (From ~31.5 to ~31.0)

Bad:
Sounds like rocks in a rolling can at idle.

I'm happy with the combo, but my car spends more time at the track than most.

Last edited by Z1NONLY; Mar 8, 2011 at 10:55 AM.
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Old Mar 8, 2011 | 12:02 PM
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i'm about to put this same clutch/flywheel combo in my car at the beginning of spring.

i heard that the aftermarket throw out bearing causes alot of the noise, using the oem nissan throw out bearing instead can help mitigate the chatter
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Old Mar 8, 2011 | 03:32 PM
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I just got this combo in today. Installing it next weekend.

Just wondering, what are you guys running for tranny fluids?
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Old Mar 8, 2011 | 03:40 PM
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Originally Posted by Elite 350z
I just got this combo in today. Installing it next weekend.

Just wondering, what are you guys running for tranny fluids?
I'm running Nissan fluid. I think Redline recently started offering the oddball weight that Nissan calls for.

The most important thing is to avoid GL-5. It eats the synchro's. GL-4 is what Nissan calls for. IIRC

Last edited by Z1NONLY; Mar 8, 2011 at 03:41 PM.
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