9 psi boost clutch recommendation? - Club RSX Message Board
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Old 03-25-2016, 04:06 PM   #1
i-Zapp
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9 psi boost clutch recommendation?

just bought a JRSC and need to upgrade the stock clutch. i've read all the countless pages of 10 year old threads on clutch recommendations, and it seems (at least a while ago) that most guys go with a stage 2 for this level of boost.

my desire is reliable clutch/trans operation, and reasonable clutch pedal effort. it's a DD and will likely never see a drag strip. on the other hand, i'll be really disappointed if she slips in 3rd gear at full boost.

is the Competition Clutch Stage 2 a good choice? they claim "40% higher clamp load" which should translate to that much higher torque capacity. might be on the edge of being enough.

the next step up is a Stage 4 Sprung at "250% increase", for only a little more money. it's a 6 puck design. any feedback on this?

thanks!
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Old 03-25-2016, 04:29 PM   #2
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Depends on what you want, but click the link in my signature for what I have...

I had a Competition Clutch stg 1.5 with 11 pound flywheel for 2+ years pushing 9psi. I swapped for an exedy organic race now (I didn't have too, plenty of life left)... Both have been great for my setup
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Old 03-26-2016, 07:57 AM   #3
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Quote:
Originally Posted by i-Zapp View Post
my desire is reliable clutch/trans operation, and reasonable clutch pedal effort. it's a DD and will likely never see a drag strip. on the other hand, i'll be really disappointed if she slips in 3rd gear at full boost.
^^ that's what i want.

wouldn't have thought that a stage 1.5 would be enough (it's 0.5 less than a stg 2 lol). the CC site doesnt even seem to have info on its specs, but kseriesparts has the following note:
Quote:
Originally Posted by kseriesparts.com
Stage 1.5 Description
The economical solution for moderately modified cars or simply aggressive individuals with stock power. Offers 40-50% increase in torque capacity and maintains stock pedal feel. 300 mile break-in recommended with this set-up.

DO NOT use with added turbo or supercharger.
interestingly, the kseriesparts website states for a stage 2
Quote:
Originally Posted by kseriesparts.com
Stage 2 Description
This assembly provides approximately 80% increase in torque capacity and is properly suited for aggressive street use and moderate track use.
(as compared to 40% more clamping force on the CC site). 80% surely would be enough for a 9 psi application, i'd think.

still interested in actual feedback...
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Old 03-26-2016, 09:08 AM   #4
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1.5 was fine for me and felt stock. I'd recommend the stg 2 as well based on what I've heard/read, but I never personally used it in this application.

This is what I have today: https://www.kseriesparts.com/cr/EXE-08806.html

No issues at all and feels great
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Old 03-26-2016, 08:07 PM   #5
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i have an exedy stage 1.5 in my car although i did buy it on there already. no slipping in 3rd at all and it has 40k miles on it. so i'd say stage 1.5 is an option.
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Old 04-15-2016, 12:01 PM   #6
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I ended up with the CC stage 2. Glad I did because that clutch job is a royal pain in the ass and I'd hate to have to do it again (or doubt my clutch's holding power).
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Old 04-15-2016, 12:16 PM   #7
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Keep us updated on how this clutch holds up. I plan on upgrading my stock clutch pretty soon and I can't decide between the stage 2 or stage 4. 9psi JRSC wit supporting mods, DD car and occasional track use.
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Old 04-16-2016, 12:11 PM   #8
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^ can vouch for the stage 2 in holding the power and occasional track use as well as DD. Stage 4 will hold the power, but can't comment on DD
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Old 04-17-2016, 09:12 PM   #9
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clutchmasters fx350 is an awesome clutch. feels stock and has plenty of holding power. you will need to have your flywheel cut to a step up cut but it works well
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