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Old 11-16-2012, 07:51 PM   #201
09rex101
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Awesome write up!
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Old 12-13-2012, 02:58 AM   #202
jt11b1981
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Quote:
Originally Posted by boostjuice View Post
So I have been searching and reading and I haven't found anything about using a lightweight flywheel (specifically ACT Streetlite) on an 06 STi. I have a Clutch Masters FX 300 that is going in and I have heard both sides about using the flywheel, any insight or experience would be very helpful.

I have heard that the RPMs fall fast which causes rough idle.
I have a 06 WRX and just installed an F1 Racing, 13.7 lbs flywheel and a Clutch Masters FX200 today. The RPMs don't fall that fast, maybe just a slight hesitation of letting off the gas while shifting, but nothing that a week or two of driving won’t get you used to. I was also surprised to see no change at idle. The needle is as steady as it ever was. The car definitely pulls quicker and you barely have to touch the gas to keep it at 80 on the highway. I was surprised that the FX200 felt really light and gummy compared to the stocker being that it’s a Stage 2 clutch. It feels all right though and grips like a b*stard too I did upgrade my clutch line to steel braided so that could have something to do with the feel also.
The flywheel didn't throw any codes but it did misfire and stall today while casually driving down a residential street. After a rough re start and some bucking as I was getting going I was surprised to see absolutely no code at all? I have an appt to get a tune on Monday so hopefully it was just a learning process for the car and won't happen again. It drove fine after that.
I know you were looking for a STi but this is what I got. I know mine hits boost and spools even faster now than it did before, launch is significantly "touchier" but by no means have to rev to 1000s of rpms just to get it going, and you'll get put back in the seat noticeably further ha-ha. One last thing is it does feel like the top speed may have gotten decreased but I won't try that till after the tune. I can't comment on top end because I haven't taken it over 3500 yet. Hope this helps a little.
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Old 01-19-2013, 01:25 AM   #203
11StiGiarla
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Extrrmy descriptive. Good post!!
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Old 01-20-2013, 08:32 PM   #204
ryanthomas6
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This post saved me a bit of money. Maybe I won't re-up for a lighter flywheel.
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Old 01-30-2013, 03:10 AM   #205
t6nis1234
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I read through the whole thread, but still didn't get a answer for my question, other than yes or no.
I have Exedy Stage 2 clutch kit with 3 puck clutch. Since the clutch is pain in the ass to drive, I would like to change it out for ACT HDMM clutch disk.
Im putting down 300 ft lb at the moment, but I want it to be good for 380 with futher upgrades.
Or would the change be pointless, because ACT HDMM or similar disk will chatter as much as my Exedy at the moment?

Good thread btw
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Old 02-05-2013, 07:11 PM   #206
Reaper13
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Default Clutch and flywheel replacement

Im still new to subaru's ive had my legacy for bout a year. im trying to figure out if I can put the 2.5gt flywheel and clutch into a 2.5i limited. ive heard alot of the subaru parts are interchangeable, but i want to make sure before making a mistake. (same with suspension parts)
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Old 03-13-2013, 05:48 PM   #207
Djimpreza02
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Question: When replacing the flywheel, is it a good precaution to replace all 8 flywheel bolts too, along with pressure plate cover bolts?

Stock flywheel, and stage 1 Exedy race clutch kit.
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Old 03-13-2013, 08:40 PM   #208
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The software wont let me type no all by itself, so no. If you like to put the lotion in the basket, you can replace all the hardware and we won't know or care. Some people have OCD on hardware....I won't make fun of you for it....much.
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Old 03-29-2013, 07:44 PM   #209
Dom_wrx3
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Hey guys, so here's what happened .. A 'friend' of mine, asked to drive my car. He's normally pretty co, so I let him. I do NOT launch my car, keep in mind. He revved it up to around 5500 RPM, and just dumps the clutch. It was in gravel. My car is a stage 3 Wrx. Stock clutch, stock tranny. About 85k on the original clutch. My clutch has been grabbing extra high lately, but doesn't slip at all. And because it's a hydraulic clutch, I can't adjust it. I was looking to replace my clutch this week. I was thinking somewhere along the lines of a stage 3 clutch, just to avoid clutch problems as much as possible in the future. Car makes around 282 horse now. I don't plan on launching, or EVER dumping the clutch. Just need something more durable for a daily driven clutch. Think it's a bad idea to go straight to stage 3? And should I do the pressure plate too? Any help would be awesome. Like I said, clutch is grabbing extra high lately.
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Old 03-30-2013, 06:46 AM   #210
ride5000
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Quote:
Originally Posted by Dom_wrx3 View Post
Hey guys, so here's what happened .. A 'friend' of mine, asked to drive my car. He's normally pretty co, so I let him. I do NOT launch my car, keep in mind. He revved it up to around 5500 RPM, and just dumps the clutch. It was in gravel. My car is a stage 3 Wrx. Stock clutch, stock tranny. About 85k on the original clutch. My clutch has been grabbing extra high lately, but doesn't slip at all. And because it's a hydraulic clutch, I can't adjust it. I was looking to replace my clutch this week. I was thinking somewhere along the lines of a stage 3 clutch, just to avoid clutch problems as much as possible in the future. Car makes around 282 horse now. I don't plan on launching, or EVER dumping the clutch. Just need something more durable for a daily driven clutch. Think it's a bad idea to go straight to stage 3? And should I do the pressure plate too? Any help would be awesome. Like I said, clutch is grabbing extra high lately.
You replace a clutch when it slips.
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Old 03-30-2013, 07:14 AM   #211
New2Sube
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I thought the rule of thumb was "stock tranny, stock clutch". Isn't that to prevent breaking the tranny?
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Old 03-30-2013, 10:21 AM   #212
ride5000
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it's one way to prevent breaking the tranny.

good condition oem clutch is good for at least 350ftlbs.
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Old 03-31-2013, 12:22 AM   #213
recce02
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Quote:
Originally Posted by Dom_wrx3 View Post
Hey guys, so here's what happened .. A 'friend' of mine, asked to drive my car. He's normally pretty co, so I let him. I do NOT launch my car, keep in mind. He revved it up to around 5500 RPM, and just dumps the clutch. It was in gravel. My car is a stage 3 Wrx. Stock clutch, stock tranny. About 85k on the original clutch. My clutch has been grabbing extra high lately, but doesn't slip at all. And because it's a hydraulic clutch, I can't adjust it. I was looking to replace my clutch this week. I was thinking somewhere along the lines of a stage 3 clutch, just to avoid clutch problems as much as possible in the future. Car makes around 282 horse now. I don't plan on launching, or EVER dumping the clutch. Just need something more durable for a daily driven clutch. Think it's a bad idea to go straight to stage 3? And should I do the pressure plate too? Any help would be awesome. Like I said, clutch is grabbing extra high lately.
Not sure what a stage 3 clutch is, but I would recommend any "full" face clutch. No puck kind of clutch is needed. I'm putting 280 tq to the ground and use ACT HDSS clutch. I daily drive it along with , stage rally, and rally crosses. O and this is my 3rd clutch ever in the car, 2nd ACT. Bought car in 01 and have 180 ish K on the clock!!!!!
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Old 03-31-2013, 01:00 PM   #214
aboothman
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Who told you a hydraulic clutch is not adjustable? The adjustment is in the pedal...the pedal stop/switch can be moved
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Old 03-31-2013, 01:13 PM   #215
New2Sube
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There's also the thread portion of the rod to the master cylinder.
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Old 04-25-2013, 11:48 PM   #216
punchjamesarnol
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subscribed... Thank you!
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Old 05-01-2013, 09:43 PM   #217
SWRocket
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Great post!
I have a hybrid EJ257 (s20 heads) with about 470lb.ft of torque
I will use the car in Time Attack and on the Streets...
What clutch you reccommend?
Best regards
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Old 05-03-2013, 11:59 AM   #218
snotrocket555
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very great information unibomber, and on a side note from one service member to a retired one thanks for your service/sacrifice.
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Old 05-06-2013, 11:36 AM   #219
whitetyger23
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Default flywheel

quick question .....does changing to a lighter flywheel effect power steering? I just changed mine to a lighter wheel and I have mostly lost my power steering
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Old 05-06-2013, 12:00 PM   #220
New2Sube
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You probably have air in the line. Jack up the car and turn the wheels lock to lock to get the air out.
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Old 05-06-2013, 02:53 PM   #221
whitetyger23
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thought of that already and topped off the fluid
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Old 05-06-2013, 03:30 PM   #222
New2Sube
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Hmmmm, I didn't say anything before but after i changed my clutch and added a lightened flywheel my pump started whining. I even changed my pump but could never get it to stop. I assumed it was just getting air in somewhere else, I read that the factory clamps on these cars let air in.
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Old 05-09-2013, 07:54 PM   #223
Tommyp
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Is shudder nessesarily a 'bad' thing, meaning that the clutch needs to be replaced? Or can shudder be a normal discomfort? Or do I just need to rev it higher when getting off from 1st. I'm on An Exedy Stage 1 Organic and an ACT lightweight flywheel
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Old 05-15-2013, 09:26 PM   #224
Wlkonh2o
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Quote:
Originally Posted by Tommyp View Post
Is shudder nessesarily a 'bad' thing, meaning that the clutch needs to be replaced? Or can shudder be a normal discomfort? Or do I just need to rev it higher when getting off from 1st. I'm on An Exedy Stage 1 Organic and an ACT lightweight flywheel
Same setup here and when I finished the install there was shudder for a few weeks and it simmered down a bit but everynow and then it would shudder.
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Old 05-15-2013, 09:31 PM   #225
Wlkonh2o
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Everyone says replace or resurface the fly when changing the clutch. I understand its a good rule of thumb but I've got about 8k on my clutch and my pressure plate defected. Can't find the plate itself so I bought a whole new clutch kit.

Should I still resurface or replace?
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