Spec clutch and flywheel

Discuss the RB20, RB25 and RB26 series engines.
s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

im planning on purchasing a spec clutch and flywheel within the next couple days. anyone running a spec clutch or flywheel in their RB25? if so where did you get it and how much did you pay? are you happy with it? only reason why im want to run a spec flywheel is because in my head i should just get a spec flywheel to go with the clutch. anyone have other recommendations on flywheels?


User avatar
lucky7
Posts: 1326
Joined: Tue May 03, 2005 4:31 pm
Car: 97 RB25 S14

Post

ive always been under the impression that spec clutches are garbage. ive heard of so many of them comming apart over a very short period of time. ive used ACT clutches before and have always been impressed.

i personally have an RPS 6 puck and a fidanza flywheel. you can get the fidanza and/or JGY flywheel for RB's at JGYcustoms.comor whatever the site name is, just search google for that name.

tintdude69
Posts: 130
Joined: Sun Oct 15, 2006 6:36 pm
Car: 90 Sr20 hatch..

Post

i ran spec in my dsm's all the time and never had a problem. i just got finished yesterday putting a stage 3 6 puck spec in my rb20 and so far it feels great. its not as bad as everyone makes it out to be. it grabs hard and fast but its not one of those "its gonna rattle your dash off" kind.. i got mine from horsepower freaks for 334 shipped.

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

has anyone ever ordered from LMPerformance? they are offering the Spec Stage 2+ clutch with free shipping right now.

BigPar
Posts: 160
Joined: Mon Jul 11, 2005 2:30 pm

Post

I just bought a competition 6 puck clutch, yet to install, but my buddy likes his on his SR.

User avatar
S14-NEO
Posts: 1385
Joined: Wed Feb 16, 2005 6:38 am
Car: 1995 nissan 240sx RB25 NEO powered

Post

+100 for spec being garbage...i had a spec D clutch which is suppose to be the bomb diggity and it was the biggest hassle...clutch disc kept welding to the flywheel and the pressure plate...def not woth 800.00 bones....and i have heard the same about the rest of their line-up.....just EFFING junk!!

User avatar
Shocker
Posts: 2082
Joined: Sun Aug 01, 2004 2:40 pm
Car: 89 240sxHB rb26/30

Post

I run a spec stg 3, as for it fusing to your flywheel? sounds like someone didnt break it in properly. That is the reason half the peopls clutches fail prematurely. No one can wait the 400-500miles before thrashing. Ran mine all last summer with about 40 ish passes down the 1/4 at 5-6k drops and slips, never once did my clutch slip. Its out of the transmission right now and the wear is extremely minimal looks almost new.

User avatar
Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

Post

i too run the spec stage 3, seems to be holding up quite well...got mine from jdsperformance.com 315$ shipped!

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

any flywheel recommendations?

User avatar
Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

Post

ive got a kts (i think...) chrome moly flywheel on my car, seems to work well.

User avatar
lucky7
Posts: 1326
Joined: Tue May 03, 2005 4:31 pm
Car: 97 RB25 S14

Post

s13point5 wrote:any flywheel recommendations?
ill post again for you. click my link:http://www.jgycustoms.com/RB20DETparts.htm

they also have fidanza flywheels. thats what i got, and i bought it from them with no problems. i think most, if not all would agree with me that fidanza is a very well renound flywheel manufacturer.

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

lucky7 wrote:ill post again for you. click my link:http://www.jgycustoms.com/RB20DETparts.htm

they also have fidanza flywheels. thats what i got, and i bought it from them with no problems. i think most, if not all would agree with me that fidanza is a very well renound flywheel manufacturer.
does fidanza make the flywheel they have on their site that is listed for $269.00? because it just say is a JGY steel flywheel and not a fidanza flywheel. i was thinking about going with that flywheel anyways

User avatar
lucky7
Posts: 1326
Joined: Tue May 03, 2005 4:31 pm
Car: 97 RB25 S14

Post

there are 2 of them they sell. JGY inhouse flywheel, and they fidanza. i got the fidanza, just because of the name brand. but ive read about other people using the JGY flywheel on here. there are a few people with it. sounds like its better than i assumed. price is definately right too. i guess you could search for it. i know i read it somewhere on here.

User avatar
Kansei240sx
Posts: 1356
Joined: Mon Nov 01, 2004 10:17 am
Car: S13 - RB25 Circuit car
71 240z - street/track day car
AE86 - Daily Drizzle/track day car
Z31t - Paper weight/street car
Contact:

Post

DXD SBC clutch > Spec.... $298Fidanza RB20/25 9.5 lb flywheel. $299





The steel backing gives this lining the ability to spin up to 12,000 rpm.Another piece to the puzzle. DXD stage TZ

TZ kits contain a modified high performance pressure plate with a heavy duty Kevlar lined disc. The metal backed Kevlar linings provide a smooth engagement and have the torque capacity to handle high horse power, high revving engines . These clutch kits maintain a stock feel at the pedal and have unmatched durability. Also included in the kit are a throw out bearing, pilot bearing, and alignment tool.

Holds 480 tq.

SBC uses DK blanks aka Daikin Klutch, also known as Exedy, if you choose so, you can get yours cryogenic treated, just like mine was. Every testimonial and the people i know that've had these have yet to break them and or glaze them, they've also had minimal to no problems with slipping under the specific tq range they're designed for. After a week or two of normal driving and breaking in, they feel and drive like a stock clutch with alot more grip, making drivability still great.

Ramius83
Posts: 740
Joined: Sat Apr 19, 2003 8:58 am
Car: 1995 240sx SE
Location: Cumming, GA

Post

I have been using a SPEC Stage 2 Kevlar Clutch disk in my RB26 for the past two years now. I have put nearly 25,000 miles on it and I have almost 50 passes down the 1/4 mile with it. With those close to 50 passes, I rev the car to 5500 RPMs and drop the clutch and go. All is going well so far. I also ran a SPEC Stage 2 on my 402 WHP Maxima when I had it and it ran perfect as well. I think most of it comes down to prep and installation, sorry if this insults anyone......

User avatar
lucky7
Posts: 1326
Joined: Tue May 03, 2005 4:31 pm
Car: 97 RB25 S14

Post

like i said, ive just heard rumors about them sucking. ive never personally used one. and like i also said. ive used ACT with no issues, and i have an RPS MAX 6 puck for my 25. sprung hub for drivablity.

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

i ordered a spec stage 2+ clutch from JDsperformance.com. 369 shipped. UPS tracking number says it will be here tuesday. now to order the flywheel. i dont see the fidanza flywheel on JGY's website. maybe they are just advertising their flywheels now? i was also thinking about just going with the JGY flywheel. i havent really heard anything bad about it.

User avatar
uber95
Posts: 314
Joined: Sat Jul 08, 2006 5:26 pm
Car: S14

Post

Kansei240sx

Do you have part #'s for that stuff, also where did you buy yours?

l0nestar
Posts: 2251
Joined: Fri Mar 10, 2006 5:24 am
Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS
Contact:

Post

uber95,

http://www.dxdracingclutches.com/home.html

Imports: Nissan: 300-z: HD-Street Series: third row, seventh column is 'buy now' for the clutch Kansei240 is speaking of.

89-96 : 3.0 N/T VG30DE : K06045 But you have to specify which 'stage' you are interested in. HTH

l0nestar
Posts: 2251
Joined: Fri Mar 10, 2006 5:24 am
Car: 1993 Nissan 250SX
2004 Toyota Altezza
1963 Chevy Impala SS
Contact:

Post

I just got off the phone with John @ SBC. The TZ stage 2 is a complete kit (pressure plate, clutch disk, throw-out bearing, and alignment tool) for $300 (plus tax + shipping) I'm probably going to be going with South Bend since A.) they are not that far from me, B.) price is right, and C.) It is a Daiken clutch! (I will probably go with the cryo-treatment as well.

User avatar
uber95
Posts: 314
Joined: Sat Jul 08, 2006 5:26 pm
Car: S14

Post

Thanks man, appreciate it. I found the PN for the Fidanza F/W it's PN 143341 That's for the RB20. There's guy in Orlando telling me he'll sell me one for $374.10 including FL sales tax, that's drop shipped from Fidanza. Sounds kinda high to me, anyone else get it cheaper?

minivan_don
Posts: 316
Joined: Fri Apr 23, 2004 7:29 am

Post

go to http://www.ultrarev.com ... type in "1010" into the coupon code box in the check out and it should drop the price from $320 Us to $290 Us. and yes its for the fidanza 143341

i bought the stage 4 south bend clutch off the z31parts.com sale pricing ... looks dope. rated at 560 lbs tq

madcowvert
Posts: 1112
Joined: Thu Jan 05, 2006 12:36 pm

Post

this may be a dumb question? but is the rb20 flywheel the same as the rb25det? the site says rb20 and nothing about rb25

minivan_don
Posts: 316
Joined: Fri Apr 23, 2004 7:29 am

Post

its been covered a few times in detail ... please search. yes it will work for the rb25.

madcowvert
Posts: 1112
Joined: Thu Jan 05, 2006 12:36 pm

Post

well i thought since we were on the topic i could ask!!!but i guess i was wrong and next time i'll search...

User avatar
HxC_Nismo
Posts: 1036
Joined: Sat Sep 23, 2006 10:26 am
Car: '98 Nissan 240SX SE R33 RB26DET
'07 Nissan Titan SE
'05 Toyota Corolla
Location: Missouri
Contact:

Post

im running spec stage 3+ on my rb26 and i like it so far, and my gas pedal is stiffer then my clutch pedal wich i find funny but thats how all spec clutches are.

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

well i just got a email back from JGY and they do not carry fidanza no more

User avatar
300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

Post

HxC_Nismo wrote:im running spec stage 3+ on my rb26 and i like it so far, and my gas pedal is stiffer then my clutch pedal wich i find funny but thats how all spec clutches are.
Not mine lol stage 5+

I'm looking into a larger bore slave to compensate, anyone got a link to one?

Sil240
Posts: 2973
Joined: Mon Apr 28, 2003 5:26 pm
Car: Nissan S13 "The One Cam Wonder"

Post

300Plus wrote:
Not mine lol stage 5+

I'm looking into a larger bore slave to compensate, anyone got a link to one?
http://www.CUSTOM.com Lol

Bro your not going to find that anywhere.There might be 1 out there, but your most likely going to need to read Japanese. lol

There are companies that do make Pedals and Hydraulics, but they are custom pieces you will have to adapt to your application.

Maybe you could take your stock Master and Bore it out.Then take the stock plunger valve and press & weld material on to it.Then you could Turn it down on the lathe to size.

But I think that you need a larger Master cylinder not a larger slave.If I remember from school you would want a larger Master do you would have to put in less work for more force.

Like if you had a 2" dia master and a 1" dia slave.If you put 100 lbs of force into the master then it would mean 200lbs on the Clutch fork.Right????If that's wrong someone please correct me, been out of school a while.


User avatar
Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

Post

figure out how to fit the clutch booster from a z32 or r32 gtr to your car, no need for a larger slave.or if you are a pansy call up your local dealer tell them to phone motorsport and to order this japanese p/n : 30620-rs580.thats the part number for the nismo slave unit to suit a ecr33 2wd.


Return to “RB20DET / RB25DET / RB26DETT Forum”