N/A Supra Flywheel/Clutch Swap w/ part numbers and pics - Page 8 - Lexus IS Forum
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post #106 of 267 (permalink) Old 02-23-2011, 11:07 AM
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Quote:
Originally Posted by jsquareD View Post
any problems on installation?
i'm looking into getting all the parts for this mod as soon as i get enough info from everyone whose done the swap.
The only major issue I had, came when I had to lift the transmission into place and line the spline up, the only help I had for the whole job was having my brother push on the motor to tilt it down after I loosened the engine mount bolts.

That was a solid, 2 hours of cussing, bruises, and getting to know my transmission in a way I usually reserve for ladyfolk.

Almost worth buying a lift just to do this damn job, in my not so humble opinion.

GGP 03 5MT LSD & TRD TF2's w/Yokohama Parada Spec 2's.
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post #107 of 267 (permalink) Old 02-25-2011, 01:26 PM
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Lightweight flywheel weights?
AASCO- 11lbs
Jun- 12lbs
Unothrodox- 13lbs
Fidanza- 12lbs
others?

Last edited by Dirty Monkey; 02-25-2011 at 01:35 PM.
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post #108 of 267 (permalink) Old 02-25-2011, 10:48 PM
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TH motorsports i think is 17.5

2001 Ford SVT Lightning 32v 5.4 twin Presession 62mm turbos-
2001 Ford SVT Lightning 10.59@127.96 <SOLD>
2004 IS300 5spd DD
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post #109 of 267 (permalink) Old 04-18-2011, 06:23 PM
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Also went with this set-up (shop installed it). I also got Fig's CD3 installed at the same time.

Initial impressions

Throttle response is definitely peppier and the driving experience is smooth and consistent and more responsive. I am enjoying it so far and am happy with the results.

The downside to the swap is that you do lose some daily drive-ability if you normally do a bit of stop and go's. You will have to change you driving habits slightly for 1st gear by giving it a bit more revs to start off otherwise you'll get some vibrations. It takes a little bit to get use to when coming from the stock flywheel on the IS. My driving consists of about 50 percent street and 50 percent highway so its not bad for me. If you drive in traffic a lot of time, or enjoy the ease of driving the IS without having to adjust your driving style; you might be a bit annoyed at the difference.

Hope this review helps anyone who's thinking about getting this swap.

EDIT:

Update!

I wanted to retract my previous post. Turns out I had a warped pressure plate which might've been the result of a bad install. The pressure plate is now replaced and I must say that drive-ability extremely increased. I no longer have any chatter and no issues with this set-up. So far, I'm loving my clutch/flywheel combo!

2002 Black Onyx-MT

Last edited by peterwong26; 06-07-2011 at 12:31 AM.
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post #110 of 267 (permalink) Old 04-18-2011, 08:38 PM
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Thanks for this thread! I have been tossing around ideas for a clutch/flywheel replacement and this is perfect! Cannot wait to do this swap to my IS.
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post #111 of 267 (permalink) Old 04-20-2011, 06:43 AM
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Does anybody know of a retailer that has the JUN flywheel in stock?


Also, I feel that this is worth mentioning...I am of the opinion that a lighter flywheel should not cause chatter (all things being equal) when the clutch is modulated properly. This statement relates to general drivetrain mechanics and not the IS300 specifically.

However, in the case of the IS300 when a lighter (non dual mass) aftermarket flywheel is used in conjunction with a non-sprung disc/clutch the chance for chatter and unfavorable engagement is increased significantly due to no damping type device (either dual mass flywheel or sprung disc) being in place.

Therefore, when switching over to a NA Supra (non dual mass) flywheel and OEM sprung disc type clutch chatter should not be an issue due to the sprung disc's damping effect.

Catch my drift?

-kenji
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post #112 of 267 (permalink) Old 04-20-2011, 06:52 AM
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Everyone i know using a light weight flywheel is using a sprung disk. My OEM Supra setup is working great a couple thousand miles later.

ALSO! One note for people who HAVENT done this...when you shift it wont hit as hard. Reason being is the flywheel doesnt have as much mass and inertia to let you get that third gear chirp from the tires or super solid hit to second. It isnt slipping its just forcing the engine to scrub more speed vs spinning the tires a tad.

Poster, I mean poster. What have I done?
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post #113 of 267 (permalink) Old 04-21-2011, 09:27 PM
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I have a sprung disc, but im having some issues with the amount of pedal from where the clutch first grabs to where it is fully engaged. Its way to small a window and makes for some really poor feeling shifts and engagements. Im going to Bleed the system again because it help a bit the first time. The stock clutch, you could actually feel the clutch engaging and feel it grabbing more and more as you let your foot up, the new setup is alot closer to an on/off situation

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post #114 of 267 (permalink) Old 05-07-2011, 05:33 PM
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Will a new sprung supra clutch disk fit the stock oem flywheel with no modifications. While still using the stock pressure plate.

2004 IIP
5spd
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post #115 of 267 (permalink) Old 05-08-2011, 02:00 PM
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Quote:
Originally Posted by Screaming 01L View Post
I have a sprung disc, but im having some issues with the amount of pedal from where the clutch first grabs to where it is fully engaged. Its way to small a window and makes for some really poor feeling shifts and engagements. Im going to Bleed the system again because it help a bit the first time. The stock clutch, you could actually feel the clutch engaging and feel it grabbing more and more as you let your foot up, the new setup is alot closer to an on/off situation
STOP DRIVING YOUR CAR!

A super low engagement point results in improper disengagement, which means every time you shift you are forcing the tranny to move from gear to gear without disengaging.

You must properly adjust the clutch pedal to correct this. When you adjust the rod on the pedal, turn it the rod clockwise to increase clutch travel. Read my thread: 5-spd? after market clutch/flywheel? experiencing gear lock-up/notchiness? come in!

'03 IS300 SD TCM 5-SPD LSD

Last edited by tonynca; 05-08-2011 at 02:07 PM.
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post #116 of 267 (permalink) Old 05-08-2011, 02:04 PM
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Quote:
Originally Posted by dejan_85 View Post
Will a new sprung supra clutch disk fit the stock oem flywheel with no modifications. While still using the stock pressure plate.
It may fit but you are going to have some crappy shifting as a result.

The stock flywheel is sprung, so you need an unsprung clutch disk to have them work in harmony.

'03 IS300 SD TCM 5-SPD LSD
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post #117 of 267 (permalink) Old 05-10-2011, 12:04 AM
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Its shifting smooth as silk. Its just a little grabby. Im told to wait for some miles of driving. Again there's no gear lock or disengagement issues. It just feels weird. The stock clutch had a longer travel from slip/grab to full on.

2001 Ford SVT Lightning 32v 5.4 twin Presession 62mm turbos-
2001 Ford SVT Lightning 10.59@127.96 <SOLD>
2004 IS300 5spd DD
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post #118 of 267 (permalink) Old 05-11-2011, 01:21 PM
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It doesn't hurt to jack up the car and make sure the engagement point have 2-3" of buffer space for the disk to sleep in during full clutch pedal depression. Your transmission may be shifting fine but you may end up having premature wear due to excessive preload on the throwout.

'03 IS300 SD TCM 5-SPD LSD
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post #119 of 267 (permalink) Old 05-31-2011, 06:25 AM
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Im concerned about the push rod on the slave cylinder. What exactly is needed to use this clutch set up?
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post #120 of 267 (permalink) Old 05-31-2011, 06:36 AM
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Originally Posted by Solid_Snake View Post
Im concerned about the push rod on the slave cylinder. What exactly is needed to use this clutch set up?
NA Supra pushrod. I've been using it for 5 months now no problem.

Poster, I mean poster. What have I done?
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