How much stiffer aftermarket clutch vs stock

alanforn · 03-18-2017, 05:20 PM

I had a new clutch and lightened flywheel installed on my AAM tt build. I'm reasonably certain that a clutch designed to work with 500hp would be harder to disengage however I just wonder how much. I wish I had a way to measure foot pressure needed to push clutch pedal, feels to me really friggen tough. I'm going to guess at least 5 times more effort than stock. Comp segmented clutch, Z1 hd throwout.

lj909 · 03-18-2017, 06:22 PM

I just put in a stage 2 and i would say it's about 2x harder then stock

littlejuanito · 03-18-2017, 07:06 PM

Quote:

Originally Posted by lj909

I just put in a stage 2 and i would say it's about 2x harder then stock

You're left calf is gonna be bigger than the other

alanforn · 03-18-2017, 07:19 PM

Quote:

Originally Posted by littlejuanito

You're left calf is gonna be bigger than the other

Thats for sure, stop and go traffic and I start getting calf cramps. Which slave cylinder controls that part of the mechanism, one at the firewall or throwout? Be nice to find a substitute slave that helps. I'll deal with it either way just wondering if this was basically to be expected. I did read here to check master cylinder to make sure not overfilled, it was and I said YES! Sadly didn't help.

lj909 · 03-18-2017, 07:56 PM

You could get a RJM clutch pedal. That will give you a little adjustment and change the leverage point. It helps!

alanforn · 03-18-2017, 08:14 PM

Quote:

Originally Posted by lj909

You could get a RJM clutch pedal. That will give you a little adjustment and change the leverage point. It helps!

Excellent point, I do have the rjm older version..I'll check it out and go through the adjustment procedure again, thanks!

ZOperaMan · 03-18-2017, 09:51 PM

I have the RJM v2 (older) as well. Made a huge difference over stock pedal using the Clutchmasters 725 twin-plate. Once we got all the bugs out, it feels almost like stock; butter-smooth.

--ZOM

alanforn · 03-18-2017, 10:38 PM

Quote:

Originally Posted by ZOperaMan

I have the RJM v2 (older) as well. Made a huge difference over stock pedal using the Clutchmasters 725 twin-plate. Once we got all the bugs out, it feels almost like stock; butter-smooth.

--ZOM

Thats great, know what I'll be doing tomorrow!

alanforn · 03-19-2017, 03:58 PM

Problem solved, backed off rjm knob to zero and gave it 2 turns, was set at about 7. Muuuch better, thanks ZOM and lj909 (and to Ryan for producing this wonderful piece)!!
Alan

03-18-2017, 05:20 PM	#1 (permalink)
alanforn Base Member Join Date: Sep 2016 Location: Crownsville Maryland Posts: 63 Drives: 2009 370z Brilliant Rep Power: 9	How much stiffer aftermarket clutch vs stock I had a new clutch and lightened flywheel installed on my AAM tt build. I'm reasonably certain that a clutch designed to work with 500hp would be harder to disengage however I just wonder how much. I wish I had a way to measure foot pressure needed to push clutch pedal, feels to me really friggen tough. I'm going to guess at least 5 times more effort than stock. Comp segmented clutch, Z1 hd throwout.

03-18-2017, 06:22 PM	#2 (permalink)
lj909 Track Member Join Date: May 2014 Location: Riverside Posts: 584 Drives: 40th 370Z Rep Power: 12	I just put in a stage 2 and i would say it's about 2x harder then stock __________________ PW 07 HR350Z R.I.P. Totaled by 82yr old woman 2010 40th Anniversary 370Z

03-18-2017, 07:56 PM	#5 (permalink)
lj909 Track Member Join Date: May 2014 Location: Riverside Posts: 584 Drives: 40th 370Z Rep Power: 12	You could get a RJM clutch pedal. That will give you a little adjustment and change the leverage point. It helps! __________________ PW 07 HR350Z R.I.P. Totaled by 82yr old woman 2010 40th Anniversary 370Z

03-18-2017, 09:51 PM	#7 (permalink)
ZOperaMan Base Member Join Date: Dec 2009 Location: Houston, Texas Posts: 82 Drives: 09 TT370z Yellow 6MT Rep Power: 15	I have the RJM v2 (older) as well. Made a huge difference over stock pedal using the Clutchmasters 725 twin-plate. Once we got all the bugs out, it feels almost like stock; butter-smooth. --ZOM __________________ Chicane Yellow 2009 370Z Base \| AAM Twin Turbo \| *516whp* Built 3.7 Wiseco-K1 \| AAM Fuel Return, 3-in Dual Exh \| Injector Dyn 1000cc \| CJM Billet Hat-Aeromotive 340 \| Setrab \| Quaife LSD \| Clutchmaster 725 Dual Disc \| CSF Radiator

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ZSpeed Stage 1, 2 & 3 Clutch and CMAK Clutch Release System Packs! In Stock!	Joe@ZSpeed	Drivetrain/Engine	82	05-24-2023 05:09 PM
OEM Clutch vs Aftermarket	Gungrave	Nissan 370Z General Discussions	9	06-04-2018 11:53 PM
JWT Clutch or those with aftermarket	V8Killer	Engine & Drivetrain	10	08-19-2015 10:13 PM
Difference between 370z stock clutch and nismo clutch?	wdkwang	Nissan 370Z General Discussions	6	03-26-2011 09:33 AM
Are my new stiffer sways screwing with VDC?	Mt Tam I am	Nissan 370Z General Discussions	21	01-08-2011 02:46 PM

03-19-2017, 03:58 PM	#9 (permalink)
alanforn Base Member Join Date: Sep 2016 Location: Crownsville Maryland Posts: 63 Drives: 2009 370z Brilliant Rep Power: 9	Problem solved, backed off rjm knob to zero and gave it 2 turns, was set at about 7. Muuuch better, thanks ZOM and lj909 (and to Ryan for producing this wonderful piece)!! Alan