New RPS Clutch Installed!!!

Joined
16 August 2004
Messages
301
Location
San Diego
Okay,

It's time I posted my review of my new RPS clutch install. I've had it for a few weeks now, have put around 800 miles on it, and give it two big thumbs up! Pedal pressure is stiffer than stock, but still very drivable. The lightweight flywheel (7-8 lbs) has made a huge difference, as when Jerry (Greenlight) pulled out my old flywheel it weighed in at around 34 lbs. So I lost about 25 lbs on the flywheel. The car RPMs wind up real fast now and feels like it puts much more power to the ground. The old clutch was aftermarket junk of some kind, which we couldn't identify. I was able to wear the old disk down to below the rivets on both sides as you'll see in some of the pics I'll be attaching later tonight (I need to shrink the file sizes). Okay, back to the RPS clutch. The build quality of the clutch was very impressive. I'm an engineering and this is a very high quality product. I would definitely recommend it to others. I've only stalled it twice with the new clutch. Once the first time I tried to drive and talk on my cell phone with the new clutch and the second backing into a parking spot while not paying much attention. To me, the car is now 10 times more fun to drive and responsive!

Also, big props to Chris at SOS for recommending this clutch to me, getting the clutch to me ASAP (two days) and dealing with my many phone calls!

And of course big props to Jerry at Greenlight for keeping his shop open an extra few days before his move to install this for me...along some other goodies!
 
I'll be jumping in the same boat in a few days myself...

RPS from SOS,

Install by Jerry...

good to know it's A-OK!!

I'll post my reviews here as well.

Also good to know the pedal isn't a beast--I was told 150% stiffer from OEM by Chris--sounds to me like maybe less than that, no?

G
 
btw

where is Jerry?

I was trying to get a hold of him but cant find him... the old number was no good and the new number that the operator gave me was also out of service.

Does he have another shop now? where did he relocate to?
 
Hmmm...

that's funny, I spoke with him at the shop today.

Maybe his # changed when he switched locations.

Try 858-569-1511. That's the shop. See FYI below... :smile:

FYI:

Hey "local" NSXers, our pals over at Greenlight Acura-Honda Service have just moved into a shop that is about 8X bigger than their previous place over on Pacific Hwy. The new address is:

Suite C (back half of the building)
7960 Ronson Road (right across from UPS.)
the new phone # 858-569-1511

As Jerry & Co now have access to an IN HOUSE Dynomax dyno and a SOTA Hunter alignment rack they can offer even better service to all you picky NSX guys than ever before.
 
I'm glad to hear everything worked out great!

I agree with you on the RPS clutch. It is by far my favorite. It's one of those products that I can't say enough good things about, which are usually the ones I personally use in my own car.

Regarding the clutch pedal effort: A heavier pressure plate is used to increase clamping power which results in what I generally say is a 50% effort over stock. Most people will not have a problem with the heavier German Sachs pressure plate used (I personally prefer German sport car's responsive clutch pedal effort compared to the light factory effort) however, it is something to consider.

We have an animation of how the clutch works here:
http://www.scienceofspeed.com/products/drivetrain_performance_products/NSX/RPS/

take care,
-- Chris
 
RON98 said:
where is Jerry?

I was trying to get a hold of him but cant find him... the old number was no good and the new number that the operator gave me was also out of service.

Does he have another shop now? where did he relocate to?
NSXGMS said:
FYI:

Hey "local" NSXers, our pals over at Greenlight Acura-Honda Service have just moved into a shop that is about 8X bigger than their previous place over on Pacific Hwy. The new address is:

Suite C (back half of the building)
7960 Ronson Road (right across from UPS.)
the new phone # 858-569-1511

As Jerry & Co now have access to an IN HOUSE Dynomax dyno and a SOTA Hunter alignment rack they can offer even better service to all you picky NSX guys than ever before.
Yes, Greenlight has moved to a new and larger location. As a matter of fact, it was posted that there is an open house this Saturday in this thread.
 
Okay here are the pics as promised!

These are of the ~35 lbs monster that came out and the burned up disk.
 

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And these ones are of the new RPS clutch from a few different angles! Damn it's beautiful!!!

**These pics were taken by Jerry Sample at Greenlight Honda. Thanks Jerry!!!
 

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NSXGMS said:
I'll be jumping in the same boat in a few days myself...
RPS from SOS,
Install by Jerry...
good to know it's A-OK!!
I'll post my reviews here as well.
Also good to know the pedal isn't a beast--I was told 150% stiffer from OEM by Chris--sounds to me like maybe less than that, no?
G

I'll congratulate you now. Excellent choice on all accounts (RPS, SOS, and Greenlight) The stiffness doesn't bother me. It's not so stiff enough to bother me in rush hour, but I try to avoid that stuff anyhow. But it is stiff enough that I know longer sit at stop lights with the clutch pushed down if I know I'm going to be waiting a while for the light to turn green. I don't know how much stiffer it is than OEM because I'm not sure the clutch that came out was OEM!

Can anyone tell from my pics if the old clutch was OEM? Thanks
 
FuryNSX said:
Based on the pics, it looks like you haven't changed out to that B+B yet. ;)

Randy - Jerry did the clutch install first, then the 60K service with my new coolant tank and the B+B! I thought you would have heard it when we left the parking lot after Dim Sum. But obviously you guys must have been rocking out to loud music or something! Either that or the exhaust on your NSX is so loud you're going deaf!!! :biggrin:
I'm planning on stopping by Jerry's for the open house! Hope to see you there...with your NSX this time! :smile:
Now I just have to get off my lazy butt and put the Cold Air Intake that's sitting on my dresser on the car! Maybe I'll do it between dyno pulls just to measure the difference!
 
No, I wasn't able to hear it when I left. I think I rolled in the Suburban before you and De took off. I'm hoping to stop by the open house also. Maybe I'll see you there. The dyno run would be cool idea. Heck, with the install being so fast according to others, a before and after comparo could be done. :)
 
just got mine installed. the pedal effort is harder than my previous pg II !!!!!
something to consider. I had hoped for an easier engagement.
 
I just let Samson (760nsx) drive my car to check out the clutch. He's already ordered his RPS clutch and it's being installed by Hoehn Acura in Carlsbad. From his comments, I think the clutch was stiffer than he expected, but that my car felt torque-ier than his which had a spec stage 2 kevlar clutch. Unfortunately he didn't punch it so he didn't get to see how fast she winds up :biggrin: But I think he'll like the clutch. Maybe he'll way in on it when tonight or when he gets his back from the dealer on Friday (fingers crossed!).
 
When you guys say the clutch is kinda heavy, how heavy do you mean? I agree the stock is kinda light but I don't want my left leg stronger than my right either.

What does it compare too?

Sticks I have driven.


69 Camaro with a Muncie Too Heavy
89 Civic Kinda Heavy
2000 Vette Nearly perfect
96 Z28 Pretty Good
91 NSX Sorta Light
2000 Nissan Max Super Light
 
Mirroredshades said:
When you guys say the clutch is kinda heavy, how heavy do you mean? I agree the stock is kinda light but I don't want my left leg stronger than my right either.


Regarding the clutch pedal effort: A heavier pressure plate is used to increase clamping power which results in what I generally say is a 50% effort over stock.
 
NSXGMS said:
I'll be jumping in the same boat in a few days myself...

RPS from SOS,

Install by Jerry...

good to know it's A-OK!!

I'll post my reviews here as well.

Also good to know the pedal isn't a beast--I was told 150% stiffer from OEM by Chris--sounds to me like maybe less than that, no?

G

Ditto on the above.
Should be done today or early tomorrow.
I will post....

-j-
 
adding to this thread..

Just picked up my NSX from Shane at Autowave last night. I also just installed a RPS clutch.

The pedal effort definitely is significantly heavier. 50% over stock is a safe number to say. Engagement is super smooth. I'm not experiencing any chatter whatsoever. Grip is awesome, well compared to my slipping OEM clutch its great.

I think this clutch is definitely still streetable. I drove 2 hours home yesterday in jammed packed stop and go traffic, and it wasn't too bad at all. I can't wait till it breaks in and take it into VTEC.
 
Hey guys-

Well my car wasnt done on friday but looks like it will be done monday or tuesday. When I drove surferX(Art) NSX the pedal pressure was stiff but looks like it be esay to get used to. When I drove it, it felt faster then my modded 2000 NSX. IT felt like it had more torque and it grabs like a SOB it def feels very strong. I know I made a good choice. Ill give more input when I get my Nsx back this monday. If youe not carefull you can stall it pretty esay just like the guy at greenlight lol.

BTW: dont get a Spec racing stage 2 kevlar clutch reason why I had to get a new clutch already.
 
I'll give my impressions, as I have had the clutch for awhile and with a thousand miles (note to self: must drive NSX more often).
My first question for potential owners is: Are you a small guy? If so, then you may not like the pedal pressure, as it is stiffer than stock. I was never a fan of the stock clutch, as it always felt weak to me (me being 200lbs).

Highs: During the annual Canyon Drive, I didn't think about the clutch all day. I would venture to say that I probably upshifted/downshifted a hundred times that day and not once did I think "damn, this clutch is too hard" or "I wish I never put this clutch in". Only after the drive did I think of the clutch and how it was a non issue and seemed very easy to get used to.

Lows: At long stoplights, you'll need to disengage the clutch. Stalling the car a few times will happen, as it engages fairly quickly. It's not one of those on and off clutches either, but more of a firm grab compared to stock.

On a final note: The car revs much, much quicker and feels faster (not going to say how much since my butt dyno may differ from yours). You'll need to adjust your shifting style, as the revs come down between shifts much faster. I just keep my foot on the throttle a little longer when shifting. If not, the car may slow down a little initially when changing gears, since you lost some revs. Once mastered, rev matching on up and down shifts is very easy compared to stock. The only time I notice the heavier clutch is when I haven't driven the car for awhile and get in it and push it for the first time and think to myself: Oh, I forgot, the clutch is heavier :biggrin:
 
The flywheel in your pic is a factory dual mass flywheel, which is stock on all 3.2's.

IMO, the RPS is a better adaptation of the Sachs P/P than the CT. The flywheel is superior in design and construction, and the clutch works really well. Have had no complaints so far, except of course that pedal effort is significant. Most people get used to it pretty quickly.

MB
 
Does RPS offer a "less stiff" option? I'm not sure where the NSX clutch falls under, Max Street or Sport?

Based on my previous experiences with RPS, I am concerned about wear on the rest of the system (master cyl, slave cyl, and clutch hose) when the clamping force is too high. All 3 of these became weak links when I put an early release RPS max street clutch in my 300ZXTT. It left me stranded 3 times. :mad:

RPS released a new clutch for the 300ZX and it has worked very well since and no problems.

I am seriously looking at an RPS for the NSX but I want 100% reliability. Based on most reviews, the stock NSX clutch can hold 400rwhp pretty reliably. I would not need extra clamping force but I do like the lightweight flywheel. Based on this requirement, I would be looking for a clutch more in line with RPS's Sport clutch.
 
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