Clutch replacement
 

Hi,

Having my clutch replaced later this week after having issues with the throw out bearing, and reading through the forums still can't decide which route to go.

Have a BRZ '13, with about 70k miles. Car is N/A, headers, exhaust, intake, tune (OFT). Not sure what power car is pulling, but guessing not much from stock.

Option 1: OEM clutch, stock flywheel resurfaced
Option 2: Exedy stage 1, stock flywheel resurfaced
Option 3: ACT HD street clutch, lighter flywheel
Option 4: Something else?

Help me decide! Car is daily driver, with maybe a few canyon runs a year. Also, it looks like the consensus is to get the Velox clutch fork as well, even with my application is it worth it?

Any advice with this is much appreciated, need all the help I can get. Thanks!

I went option 3 with the Streetlite flywheel. Also went ahead with the Velox clutch fork and pivot while the transmission was opened up.

My impressions after 3k miles: I'm still getting used to the clutch, it grabs pretty hard which combined with the lightened flywheel makes taking off from a stop tricky for me. I have to rev a bit higher to get her going. Also, consider how much stop-and-go traffic you endure. Sometimes I wish I had the stock setup since it was so easy to drive in stop-and-go traffic.

Good to know, was debating the pros/cons of lighter flywheels. Since this is my DD it seems stock is better (Unless someone else chimes in). Now to decide if going stage 1 is worth it or just going OEM.

Thanks!

Exedy makes the oem clutch, so they are the same except the markup.

Yeah, was aware Exedy made the OEM parts, just wondering if the upgrade to stage 1 is worth it or not.

Thanks!

I'd suggest you go with option #1.

If the clutch fork looks OK, why replace it (assuming you're putting back a OEM clutch and flywheel).


humfrz

My FR-S is just under 60k miles right now and I'm in the exact same situation. My throwout bearing has been making a grinding sound whenever I depress the clutch pedal. Tried to get Toyota to fix it under warranty, but they said clutches aren't covered. I'm torn between the Exedy OEM and Stage 1 clutch kits right now. I often run an E85 Stage 2 tune, so wonder if the extra torque warrants a stronger clutch or not?

If you are NA you dont need a stronger clutch... get OEM replacement and call it a day.

Exactly, seems even with slight increase in power/torque with bolt on parts and tune, OEM seems to handle the job which is great.

However, does stage 1 have its merits and worthy upgrade or pointless unless you go boosted?

Been reading the forums all night, still can't decide lol

Unless it's this NA :)

I think we wish we all had that engine...lol

If you're not going to clutch kick all day (i.e. drifting), OEM is plenty fine for your needs.

Clutch fork is only a need if you have upgraded pressure plate.

Anybody know if the throwout bearing is the same between the Exedy OEM and Stage 1 kits? I seem to remember reading somewhere the Stage 1 had a higher quality bearing. Dropping the transmission is going to be a PITA, so I don't want to do this again for a long time.

That thing actually only makes 197lb ft torque... OEM could handle it no problem...

Surprisingly, I'm boosted with almost 240wtq and my low miles OEM clutch is doing fine... wont last forever obviously

Stick with stock parts. Throwing unneeded "upgrades" at it serves no real purpose and can lead to other issues. The closer you stick to the stock set up the more reliable it should be (although obviously the stock TOB is proving to not be all that reliable).

Sounds like the best option is to stick with OEM.

Appreciate all the input, order has been placed, and I'm doing some shift springs and bushing upgrades while I'm under there. Thinking about that slave cylinder swap as well...

Thanks everyone!

Dropped my transmission last night, and, as I figured, the throwout bearing was toast. I really hope the TOB that came with the Exedy OEM clutch kit lasts longer than this piece of crap did. :mad0260:
Attachment 151814

Wow...kinda a thread jack but that JUN car made me drool.

I love my ACT clutch, i kept it with the best disc style and streetlight flywheel, prolight can chatter and no true upgrade in noticeable performance. Puck clutches teld to hold more but also can chatter. Ill have to grab a dual clutch or a 6 puck here after my forged build is complete.

345ftlbs is ACTs best disc system
444ftlbs is ACTs best puck style.

I installed a Exedy heavy duty clutch and a Toda light weight flywheel five months ago. I have a header and OFT tune. I found the clutch has a sharper take up which in my opinion improves feel hugely, I would recommend it to anyone that finds the stock clutch a bit vague.
Disclaimer: It isn't the stg 1 exedy clutch however, part number is TYK-8536HD and may only be available in Aus and NZ.

Also I initially found the light flywheel a bit of a pain but once I adjusted the tip in enrichment as per steve99's suggestion in one of the OFT threads it has been a piece of cake to drive.

TL/DR From my experience a HD clutch and lightweight flywheel are worthwhile on a mostly stock motor.

Exactly. :thumbsup:

I got a 10.5 lb fltwheel. Only other mod is e85.

I think its worth.