05 STi Clutch....Help!

SacKing23 · 07-14-2008, 08:38 PM

Unfortunately my clutch is going and needs to be replaced at 36k. I am looking for your opinions on which clutch to choose to replace mine with. Yes, I used the "search" option and the "FAQ", but I just want individualized advise based upon my specific situation.

I have an 05 STi that I use as my daily driver. I have a full TBE, K&N Typhoon short ram intake and Cobb Accessport pro-tuned, dyno-ed at 295 ft. lbs torque.

I never track the car and do not street race that often, but I want upgraded performance, longevity and drivability, as my car is my daily driver. I have been going back and forth between the Exedy Stage 1 or the ACT HD Street Disc Clutch. I have heard mixed reviews on each. Any other opinions/suggestions/reviews would be greatly appreciated.

Thanks

**Cr8zyJAP07** · 07-14-2008, 08:40 PM

replacing mine with exedy stg 2

Conekiller13 · 07-15-2008, 11:20 AM

My stock clutch lasted 50k miles with track time and auto crosses. Put in an Exedy stage 1 at 50k. Car now has 60k with no track time and two auto crosses. Clutch is worn to rivets. If it was defective and Exedy does the right thing to replace it for Me I'll endorse but until I hear back from them I can't say their stuff is worth the box it comes in.

My car is stock drivtrain by the way.

upncummr · 07-15-2008, 11:24 AM

Quote:

Originally Posted by SacKing23

I never track the car and do not street race that often, but I want upgraded performance, longevity and drivability, as my car is my daily driver. I have been going back and forth between the Exedy Stage 1 or the ACT HD Street Disc Clutch. I have heard mixed reviews on each. Any other opinions/suggestions/reviews would be greatly appreciated.

Thanks

Seems unlikely that you're going to get upgraded performance, longevity and drivability all in the same package. As with most things in life, there are trade-offs.

Upgraded performance may come at the expense of longevity and drivability.

Gary

will12345 · 07-15-2008, 11:29 AM

run the act street disc with the hd pressure plate, i have the same setup with the 11lb flywheel and ive been putting down 390 ft lbs for the last 20000 miles and the clutch has almost 40000. still holds perfect

blackknight · 07-15-2008, 03:18 PM

Hey guys! I need help with picking a new clutch too!

I have a different issue though. See... my knee isn't really all that great anymore due to a car wreck several years back. So I really don't know which clutch kit to go with that will give me a near stock pedal feel and still be easily driven on the street.

My car is currently putting down about 480lbs of torque and I'm looking at throwing more power at the motor. So I'm looking for a clutch that will hold somewhere around 550-600lbs of torque.

I'd like to install a new clutch a.s.a.p.

So... any suggestions???

SacKing23 · 07-15-2008, 05:12 PM

Quote:

Originally Posted by upncummr

Seems unlikely that you're going to get upgraded performance, longevity and drivability all in the same package. As with most things in life, there are trade-offs.

Upgraded performance may come at the expense of longevity and drivability.

Gary

Fair enough, which one would you go with?

blackknight · 07-15-2008, 05:39 PM

I need near stock pedal feel. That's the most important. Any suggestions from there?

ChristianCGM · 07-15-2008, 05:40 PM

SacKing23 - The ACT HDSS will provide you with the performance, longevity and drivability that you are looking for. It is rated at 515 ft/lbs at the flywheel witch will net around 390 ft/lbs at the wheels....you will have about 100 ft/lbs of wheel torque to gain before you will start to wear out that clutch significantly. The clutch pedal will be marginally stiffer than stock, but thats because its a better clutch than stock for holding more power than stock....you will get used to it. Since its a full disk face it will not wear out prematurely like a puck clutch will.

Here is why not to get either the Exedy Stage 1 and Stage 2 clutches. The Exedy Stage 1 clutch is an organic disk that holds 321 ft/lbs at the flywheel.....taking into account 25% for drivetrain loss you are looking at it wheel torque capacity of about 241 ft/lbs....not good enough for your numbers to date. This is mostly due to a weak pressure plate. The Exedy Stage 2 clutch is a 3-puck clutch, which if you don't know is horrible for longevity and drivability.....performance wise it would be great if it were rated higher than 400 ft/lbs at the flywheel....which taking into account 25% drivetrain loss again is 300 ft/lbs of wheel torque capacity. This is right on your limits and if I were you I would not consider that acceptable. Again this is mostly due to a weak pressure plate. The bottom line is both of these are not a better clutch than the ACT HDSS.

upncummr · 07-15-2008, 05:41 PM

Quote:

Originally Posted by SacKing23

Fair enough, which one would you go with?

If it was me, I'd go with the stock clutch. But that reflects my particular needs and circumstances.

It looked like there were some others on here that felt there were better alternatives than the stock pieces.

Maybe they can share a little bit more of their impressions.

Gary

ChristianCGM · 07-15-2008, 05:43 PM

Quote:

Originally Posted by blackknight

I need near stock pedal feel. That's the most important. Any suggestions from there?

You are kind of SOL unless you want to spend the money on a quality multi-disk clutch like a Tilton or the RPS Carbon-Carbon. You might be able to get away with one of the higher rated disk clutches like the ACT XTSS or the RPS with the Max Series pressure plate. Other than that you are into puck clutch territory.....which will suck for your left leg.

importfanatic17 · 07-15-2008, 05:43 PM

OP, I went with the Exedy 3 puck and so far it is holding up. I was going to go ACT but they were backordered and since the stock clutch is Exedy, I figured what the hell. Haha.

XxSCAxX · 07-15-2008, 09:14 PM

are you keeping your mods limited to the ones you have? if so, just get another stock clutch. no reason to need to upgrade it if your not going to need it. plus, the stock clutch is already exedy.

but if your looking to add more hp in the future, then its a different story.

cyoung · 07-16-2008, 01:36 PM

anybody have any thoughts on the Competition Clutch Stage 4 6-puck sprung? i have a Stg 2 '04 with 60k on it, that i will be putting a Dom 3.0R on within the next 6 mos.

importfanatic17 · 07-16-2008, 05:03 PM

Quote:

Originally Posted by XxSCAxX

are you keeping your mods limited to the ones you have? if so, just get another stock clutch. no reason to need to upgrade it if your not going to need it. plus, the stock clutch is already exedy.

but if your looking to add more TQ in the future, then its a different story.

Fixed

.

07-14-2008, 08:38 PM	#1
SacKing23 STI Driver Car: 05 STi Location: Roseville, Ca Posts: 202 Join Date: Nov 2004 Trader Rating: (0)	05 STi Clutch....Help! Unfortunately my clutch is going and needs to be replaced at 36k. I am looking for your opinions on which clutch to choose to replace mine with. Yes, I used the "search" option and the "FAQ", but I just want individualized advise based upon my specific situation. I have an 05 STi that I use as my daily driver. I have a full TBE, K&N Typhoon short ram intake and Cobb Accessport pro-tuned, dyno-ed at 295 ft. lbs torque. I never track the car and do not street race that often, but I want upgraded performance, longevity and drivability, as my car is my daily driver. I have been going back and forth between the Exedy Stage 1 or the ACT HD Street Disc Clutch. I have heard mixed reviews on each. Any other opinions/suggestions/reviews would be greatly appreciated. Thanks This ad is not endorsed by this member. Please register or login to hide this ad.

07-14-2008, 08:40 PM	#2
Cr8zyJAP07 Gold Member Car: 07 STI OBP Fav Mod: 57maximum t/a, Nur spec-R, invidia v2.... Location: Bushkill, PA Posts: 1,032 Join Date: Feb 2008 Trader Rating: (3)	Re: 05 STi Clutch....Help! replacing mine with exedy stg 2

07-15-2008, 11:20 AM	#3
Conekiller13 STI Driver Car: Black '05 STi Fav Mod: Dealer delete option. Location: Donald, OR Posts: 252 Join Date: Oct 2004 Trader Rating: (0)	Re: 05 STi Clutch....Help! My stock clutch lasted 50k miles with track time and auto crosses. Put in an Exedy stage 1 at 50k. Car now has 60k with no track time and two auto crosses. Clutch is worn to rivets. If it was defective and Exedy does the right thing to replace it for Me I'll endorse but until I hear back from them I can't say their stuff is worth the box it comes in. My car is stock drivtrain by the way.

07-15-2008, 11:29 AM	#5
will12345 Senior STI Driver Car: 04 subaru sti Fav Mod: 35r turbo kit Location: sunny san diego Posts: 317 Join Date: Apr 2007 Trader Rating: (1)	Re: 05 STi Clutch....Help! run the act street disc with the hd pressure plate, i have the same setup with the 11lb flywheel and ive been putting down 390 ft lbs for the last 20000 miles and the clutch has almost 40000. still holds perfect

07-15-2008, 03:18 PM	#6
blackknight Amateur STI Driver Car: '05 OBP STi Fav Mod: APS S/R55. Location: Connecticut Posts: 22 Join Date: Sep 2006 Trader Rating: (0)	Re: 05 STi Clutch....Help! Hey guys! I need help with picking a new clutch too! I have a different issue though. See... my knee isn't really all that great anymore due to a car wreck several years back. So I really don't know which clutch kit to go with that will give me a near stock pedal feel and still be easily driven on the street. My car is currently putting down about 480lbs of torque and I'm looking at throwing more power at the motor. So I'm looking for a clutch that will hold somewhere around 550-600lbs of torque. I'd like to install a new clutch a.s.a.p. So... any suggestions???

07-15-2008, 05:39 PM	#8
blackknight Amateur STI Driver Car: '05 OBP STi Fav Mod: APS S/R55. Location: Connecticut Posts: 22 Join Date: Sep 2006 Trader Rating: (0)	Re: 05 STi Clutch....Help! I need near stock pedal feel. That's the most important. Any suggestions from there?

07-15-2008, 05:40 PM	#9
ChristianCGM Grassroots STI Racer Car: 05 STi CGM Fav Mod: whiskey tango Posts: 580 Join Date: Oct 2005 Trader Rating: (2)	Re: 05 STi Clutch....Help! SacKing23 - The ACT HDSS will provide you with the performance, longevity and drivability that you are looking for. It is rated at 515 ft/lbs at the flywheel witch will net around 390 ft/lbs at the wheels....you will have about 100 ft/lbs of wheel torque to gain before you will start to wear out that clutch significantly. The clutch pedal will be marginally stiffer than stock, but thats because its a better clutch than stock for holding more power than stock....you will get used to it. Since its a full disk face it will not wear out prematurely like a puck clutch will. Here is why not to get either the Exedy Stage 1 and Stage 2 clutches. The Exedy Stage 1 clutch is an organic disk that holds 321 ft/lbs at the flywheel.....taking into account 25% for drivetrain loss you are looking at it wheel torque capacity of about 241 ft/lbs....not good enough for your numbers to date. This is mostly due to a weak pressure plate. The Exedy Stage 2 clutch is a 3-puck clutch, which if you don't know is horrible for longevity and drivability.....performance wise it would be great if it were rated higher than 400 ft/lbs at the flywheel....which taking into account 25% drivetrain loss again is 300 ft/lbs of wheel torque capacity. This is right on your limits and if I were you I would not consider that acceptable. Again this is mostly due to a weak pressure plate. The bottom line is both of these are not a better clutch than the ACT HDSS. Last edited by ChristianCGM : 07-15-2008 at 05:51 PM.

07-15-2008, 05:43 PM	#12
importfanatic17 Spec C Club Car: '05 Aspen White STi Fav Mod: EQ Tuning tune Location: Sacramento, Ca Posts: 1,763 Join Date: Apr 2007 Trader Rating: (5)	Re: 05 STi Clutch....Help! OP, I went with the Exedy 3 puck and so far it is holding up. I was going to go ACT but they were backordered and since the stock clutch is Exedy, I figured what the hell. Haha.

07-15-2008, 09:14 PM	#13
XxSCAxX Spec C Club Car: 05 AW 30r STi Fav Mod: Perrin 30r Kit Location: Campbell Hall, NY Posts: 1,496 Join Date: Apr 2005 Trader Rating: (5)	Re: 05 STi Clutch....Help! are you keeping your mods limited to the ones you have? if so, just get another stock clutch. no reason to need to upgrade it if your not going to need it. plus, the stock clutch is already exedy. but if your looking to add more hp in the future, then its a different story.

07-16-2008, 01:36 PM	#14
cyoung Amateur STI Driver Car: 04 Black WRX STi Fav Mod: Coming Soon Posts: 8 Join Date: May 2008 Trader Rating: (0)	Re: 05 STi Clutch....Help! anybody have any thoughts on the Competition Clutch Stage 4 6-puck sprung? i have a Stg 2 '04 with 60k on it, that i will be putting a Dom 3.0R on within the next 6 mos.