RJM Clutch Pedal System for 370Z - Fully Customizable Clutch Feel & Stroke

Ryan @ RJM · 11-12-2013, 08:13 PM

Quote:

Originally Posted by TreeSemdyZee

I have a stupid question. I've been driving manual cars for years and I'm a little confused now as to how the clutch is supposed to "feel". To me, the Z feels pretty much how all of my other cars have felt.

What is the desired feel that everyone is speaking of? A friend of mine who has done racing for years (Ferrari Challenge Series for one) said the same thing while driving my car that most of the people here are saying.

Well since fellow owners haven't chimed in yet I'll take a shot at what I feel the important improvement points are:

First the factory pedal feels VERY numb and disconnected from what the clutch is actually doing. Not feeling what the clutch is doing takes away a lot of driver feedback which helps you feel the critical engagement points. This is due to the spring clutch assist mechanism Nissan used starting already back with the 350Z in 03'. Lighter springs are available from several people here but they make very limited improvement and I'd say 8 out of 10 370Z customers who buy my product tell me they wasted $20bucks trying the spring mod band-aid solution first but weren't happy with the results.

2nd is the long travel and very high engagement point where for a big guy like myself me knee was practically hitting the dash before the clutch would engage on the upstroke of the pedal. In factory form the clutch pedal is taller than the brake pedal height making it awkward to adjust the seat comfortbly, ideally both should be at the same height. This high pedal put me sitting almost all the way back to compensate which is a compromise at best. The RJM pedal allows you to safely lower the pedal height to be equal to or lower than the brake if you so choose.
I say safely as with the factory assembly altering the pedal height down messes with the function of the spring assist mechanism which can stick in assist mode and burn up your clutch and throw out bearing in short order.

3rd is the ability of the RJM to alter the pedals leverage ratio and master cylinder travel. By reducing the master cylinder travel it eliminates the excess travel at the bottom of the stroke and lowers the friction point closer to the floor which many find more enjoyable than a really tall friction point. The increase in pedal leverage means you have finer control over the clutch release and a wider range of pedal motion that is actively modulating the clutch. This leads to much smoother and faster 1-2 shifts which are hard to get consistently smooth on the factory 370Z pedal without a lot of effort put on getting the perfect timing and rpm's just right. With the RJM the 1-2 shift becomes smoother, easier and with less mental effort... it just comes naturally and more fluid which is hard to explain but must really be felt to understand.

4th, not really "feel' related and many don't know this but the RJM's reduction of excess pedal stroke and master cylinder travel reduces or eliminates the chance of OEM concentric slave cylinder failure. Slave failure is almost always the result of over stroking the CSC inside the bellhousing causing the seals to rupture when the CSC piston reaches the end of its designed travel but the master cylinder/clutch pedal continues to push. When the seals burst it's almost always instant death for the CSC. Plus it means getting towed and possibly replacing the clutch too if clutch fluid sprays onto the clutch disk permanently contaminating it.
Reducing the excess pedal stroke is a good thing for extending CSC life and I've had customers who've had 2 or 3 CSC's replaced in a row by the dealership who then installed the RJM pedal and never had the issue return. As well I've never heard of a single CSC failure from any customer running the RJM pedal in the past 2 years of sales while there are hundreds of other 370Z & G37 owners that are still struggling with CSC failures out there on the various owner forums.

So in closing there is no particular pedal feel the RJM pedal generates. Everything about the RJM pedal is geared around personal preference. It allows the flexibility to adjust your clutch pedal to whatever feels right to you, your specific clutch setup and your own unique driving style.

Like everything it has its limits and can only do so much but it gives you a lot of options and adjustment room you'd never have with a stock pedal.

TreeSemdyZee · 11-12-2013, 08:21 PM

Cool. Thanks Ryan. That helps a lot.

Ryan @ RJM · 11-16-2013, 12:06 PM

Weekend Bump

Ryan @ RJM · 11-28-2013, 06:08 PM

New Stock's Arriving Tomorrow!!!
Thank You to everyone who's placed back orders. They'll be shipping out first thing Monday Morning

For anyone who hasn't scooped up one of these at the Special Price + Free Shipping You'd Better Hurry! There are Only 10 Units left available from the new batch coming tomorrow and Sale Ends SUNDAY!

No other Black Friday sale item will make as big of an impact on your daily driving enjoyment than this! You'll feel it's presence on every shift

martin82 · 11-30-2013, 01:27 PM

Is there still special pricing on this if so pm me thanks!!

Ryan @ RJM · 12-01-2013, 08:26 AM

Quote:

Originally Posted by martin82

Is there still special pricing on this if so pm me thanks!!

PM sent Last night as requested

Still a Few Units Left !

40 to 332 · 12-01-2013, 12:53 PM

Hey Ryan … I ordered the RJM clutch pedal assembly and installed it a few months ago. I meant to post some comments about it after some use, but never found the time. The car is now in winter hibernation, and I now have some time. My comments are:

First, the RJM assembly is well made. The overall quality matches or exceeds that of the stock assembly.

Second, the RJM assembly is far superior to the stock in terms of overall clutch "feel". The clutch shudder that I often experienced from a standing start with the stock assembly has virtually disappeared. It makes the driving experience better. (Incidentally, I have been driving vehicles with manual transmissions for 45 years so the "shudder" experienced with the stock assembly was not a newbie issue).

Third, the free play at the top of the pedal takes a bit of time to get used to largely because there is virtually no free play in the stock pedal, so the sensation is different. I completed the minor adjustment outlined in the instructions which reduced the free play a bit, but caused the lower switch to start heading out of alignment. Anyway, not a problem … just letting others know that the free play may seem a little odd at first.

Fourth, the RJM assembly is a bit of a bear to install, due largely to the very cramped quarters. Certainly, you don't have to be a master mechanic to install it, but youth and a good back would help! It took me about 6 hours to install, but I was very fussy about following the instructions, and making sure that fitment was proper. It also requires good lighting … preferably with something other than a trouble light that I used, and regretted every time my hands or arms got close to it.

Finally, I'd offer an "alert" for Step 37 … when you install the smaller clevis pin into the supplied clevis fork through the AFP slider mechanism. At this stage, the installation is almost complete. I had to "fuss" with the pin while attempting to push it through … and suddenly it went through, at which time I heard a faint dreaded clink, which turned out to be the rear bronze bearing in the new fork that had popped out and struck some part in the footwell as it went flying. There was some momentary fear as I thought "where the f did the bearing end up". Fortunately, a quick search revealed it deep in a crevice in the footwell. It was easy to re-install, but I could have done without the panic just as the installation was nearing completion. You may want to alert folks of this issue. Simply placing a finger on the backside of the fork to ensure that the bearing stays in place would solve the problem.

Bottom line: The RJM assembly is great. I never went the way of removing or changing the clutch helper spring so I can't comment on whether the assembly helps more or less than switching the spring. But I can say that the assembly works well and makes driving a stick a much better experience than the stock assembly.

JARblue · 01-09-2014, 07:13 PM

One of these just showed up unexpectedly on my doorstep today! Thanks to Ryan and my wife for the birthday present!

I can't wait until I'm done installing it

Ryan @ RJM · 01-11-2014, 03:54 PM

Quote:

Originally Posted by JARblue

One of these just showed up unexpectedly on my doorstep today! Thanks to Ryan and my wife for the birthday present!

I can't wait until I'm done installing it

JARblue You're very welcome & Happy Birthday!
I'll look forward to hearing how you like it.

zguynate · 01-27-2014, 10:46 AM

I didnt realize that my issue was posted here about the water leak. Just for the record my water leak was leaking through the wiring harness boot that is just to the left of the clutch pedal assembly. My water leak started coincidentally shortly after I installed the RJM pedal causing me to think that it may have been related. I can safely say that the issue wasnt caused or related to this assembly. It was just one of those weird things that happen. A little silicon around the harness boot fixed me up!

This pedal assembly is awesome! No complaints here. Definitely worth the money. One of my biggest complaints when switching from the 350z to the 370z was the clutch feel joined with the lagging of the throttle. This fixed any concerns I had with the clutch being hard to feel/judge. Before it seemed that I could never get it right. I was too high or too low causing the ride to feel like a 14 year old was driving a stick for the first time lol.

Ryan @ RJM · 02-05-2014, 06:53 PM

Quote:

Originally Posted by dragonbreath

I didnt realize that my issue was posted here about the water leak. Just for the record my water leak was leaking through the wiring harness boot that is just to the left of the clutch pedal assembly. My water leak started coincidentally shortly after I installed the RJM pedal causing me to think that it may have been related. I can safely say that the issue wasnt caused or related to this assembly. It was just one of those weird things that happen. A little silicon around the harness boot fixed me up!

This pedal assembly is awesome! No complaints here. Definitely worth the money. One of my biggest complaints when switching from the 350z to the 370z was the clutch feel joined with the lagging of the throttle. This fixed any concerns I had with the clutch being hard to feel/judge. Before it seemed that I could never get it right. I was too high or too low causing the ride to feel like a 14 year old was driving a stick for the first time lol.

Dragonbreath, thanks for following up and I'm glad to hear your enjoying the new pedal. As well it's good you got that water leak fixed around your upper wiring harness. Looking at the pics in your other thread it certainly was a pretty extreme amount of water that found its way into your car

Ryan @ RJM · 02-05-2014, 06:58 PM

370Z Rev2.1 AFP Pedal Assemblies are Still On Sale this Month (While Supplies Last)
Just *5* Units Remaining in stock tonight at the Sale Price & with Free Shipping.

Ryan @ RJM · 02-07-2014, 04:09 PM

Down to 3 Units Left this Weekend at the Sale Price. Who Wants One

Ryan @ RJM · 02-09-2014, 08:27 AM

Orders before noon today will ship tomorrow AM

Shotta · 02-19-2014, 07:54 PM

Hello Ryan,

for this Redline/Synchromesh fluid cocktail you mention, are you just mixing 50/50 or some other ratio?

Thanks.

11-12-2013, 08:21 PM	#2 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 62 Posts: 4,888 Drives: '09 370 & ‘14 Juke Rep Power: 27410	Cool. Thanks Ryan. That helps a lot. __________________ Borla S-Type \| Motordyne \| Z1 (lots) \| South Bend \| K&N \| Nismo/Nismo S-Tune \| Eibach \| Aerojacket \| Fujimara \| Spl \| ZSpeed Performance \| Kenwood-Infinity-Sound Ordnance \| Whiteline \| Ecutek \| Hotchkis \| Clazzio \| VQ Vortex \|Morimoto XB \|Dynosty Tune 329.64hp 265.73 ft/lb

11-16-2013, 12:06 PM	#3 (permalink)
Ryan @ RJM Enthusiast Member Join Date: Aug 2012 Location: Ontario Canada Posts: 345 Drives: 09' G37S Coupe Rep Power: 14	Weekend Bump __________________ Home of the A.F.P. Upgraded Clutch Pedal System. Smoother Launches, Smoother Shifts & Improved Clutch Control Like No Other Pedal Mod You've Experianced Before Guaranteed! Visit www.RJMPerformance.com or Email Ryan@RJMPerformance.com Also Don't Forget to Like us on Facebook www.facebook.com/RJM-Performance

11-28-2013, 06:08 PM	#4 (permalink)
Ryan @ RJM Enthusiast Member Join Date: Aug 2012 Location: Ontario Canada Posts: 345 Drives: 09' G37S Coupe Rep Power: 14	New Stock's Arriving Tomorrow!!! Thank You to everyone who's placed back orders. They'll be shipping out first thing Monday Morning For anyone who hasn't scooped up one of these at the Special Price + Free Shipping You'd Better Hurry! There are Only 10 Units left available from the new batch coming tomorrow and Sale Ends SUNDAY! No other Black Friday sale item will make as big of an impact on your daily driving enjoyment than this! You'll feel it's presence on every shift __________________ Home of the A.F.P. Upgraded Clutch Pedal System. Smoother Launches, Smoother Shifts & Improved Clutch Control Like No Other Pedal Mod You've Experianced Before Guaranteed! Visit www.RJMPerformance.com or Email Ryan@RJMPerformance.com Also Don't Forget to Like us on Facebook www.facebook.com/RJM-Performance

12-01-2013, 12:53 PM	#7 (permalink)
40 to 332 Enthusiast Member Join Date: Apr 2013 Location: Kimberley, BC, CANADA Posts: 458 Drives: 13 370Z BS M6 Sport Rep Power: 441	Hey Ryan … I ordered the RJM clutch pedal assembly and installed it a few months ago. I meant to post some comments about it after some use, but never found the time. The car is now in winter hibernation, and I now have some time. My comments are: First, the RJM assembly is well made. The overall quality matches or exceeds that of the stock assembly. Second, the RJM assembly is far superior to the stock in terms of overall clutch "feel". The clutch shudder that I often experienced from a standing start with the stock assembly has virtually disappeared. It makes the driving experience better. (Incidentally, I have been driving vehicles with manual transmissions for 45 years so the "shudder" experienced with the stock assembly was not a newbie issue). Third, the free play at the top of the pedal takes a bit of time to get used to largely because there is virtually no free play in the stock pedal, so the sensation is different. I completed the minor adjustment outlined in the instructions which reduced the free play a bit, but caused the lower switch to start heading out of alignment. Anyway, not a problem … just letting others know that the free play may seem a little odd at first. Fourth, the RJM assembly is a bit of a bear to install, due largely to the very cramped quarters. Certainly, you don't have to be a master mechanic to install it, but youth and a good back would help! It took me about 6 hours to install, but I was very fussy about following the instructions, and making sure that fitment was proper. It also requires good lighting … preferably with something other than a trouble light that I used, and regretted every time my hands or arms got close to it. Finally, I'd offer an "alert" for Step 37 … when you install the smaller clevis pin into the supplied clevis fork through the AFP slider mechanism. At this stage, the installation is almost complete. I had to "fuss" with the pin while attempting to push it through … and suddenly it went through, at which time I heard a faint dreaded clink, which turned out to be the rear bronze bearing in the new fork that had popped out and struck some part in the footwell as it went flying. There was some momentary fear as I thought "where the f did the bearing end up". Fortunately, a quick search revealed it deep in a crevice in the footwell. It was easy to re-install, but I could have done without the panic just as the installation was nearing completion. You may want to alert folks of this issue. Simply placing a finger on the backside of the fork to ensure that the bearing stays in place would solve the problem. Bottom line: The RJM assembly is great. I never went the way of removing or changing the clutch helper spring so I can't comment on whether the assembly helps more or less than switching the spring. But I can say that the assembly works well and makes driving a stick a much better experience than the stock assembly. BeemaaZ likes this.

01-09-2014, 07:13 PM	#8 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 45 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684442	One of these just showed up unexpectedly on my doorstep today! Thanks to Ryan and my wife for the birthday present! I can't wait until I'm done installing it TreeSemdyZee and GaleForce like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

11-30-2013, 01:27 PM	#5 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 21	Is there still special pricing on this if so pm me thanks!!

01-27-2014, 10:46 AM	#10 (permalink)
zguynate A True Z Fanatic Join Date: Jan 2012 Location: Strangeland Posts: 1,054 Drives: 09 370z Rep Power: 75	I didnt realize that my issue was posted here about the water leak. Just for the record my water leak was leaking through the wiring harness boot that is just to the left of the clutch pedal assembly. My water leak started coincidentally shortly after I installed the RJM pedal causing me to think that it may have been related. I can safely say that the issue wasnt caused or related to this assembly. It was just one of those weird things that happen. A little silicon around the harness boot fixed me up! This pedal assembly is awesome! No complaints here. Definitely worth the money. One of my biggest complaints when switching from the 350z to the 370z was the clutch feel joined with the lagging of the throttle. This fixed any concerns I had with the clutch being hard to feel/judge. Before it seemed that I could never get it right. I was too high or too low causing the ride to feel like a 14 year old was driving a stick for the first time lol. __________________ 2009 370z touring w/sports package

02-05-2014, 06:58 PM	#12 (permalink)
Ryan @ RJM Enthusiast Member Join Date: Aug 2012 Location: Ontario Canada Posts: 345 Drives: 09' G37S Coupe Rep Power: 14	370Z Rev2.1 AFP Pedal Assemblies are Still On Sale this Month (While Supplies Last) Just 5 Units Remaining in stock tonight at the Sale Price & with Free Shipping. __________________ Home of the A.F.P. Upgraded Clutch Pedal System. Smoother Launches, Smoother Shifts & Improved Clutch Control Like No Other Pedal Mod You've Experianced Before Guaranteed! Visit www.RJMPerformance.com or Email Ryan@RJMPerformance.com Also Don't Forget to Like us on Facebook www.facebook.com/RJM-Performance

02-07-2014, 04:09 PM	#13 (permalink)
Ryan @ RJM Enthusiast Member Join Date: Aug 2012 Location: Ontario Canada Posts: 345 Drives: 09' G37S Coupe Rep Power: 14	Down to 3 Units Left this Weekend at the Sale Price. Who Wants One __________________ Home of the A.F.P. Upgraded Clutch Pedal System. Smoother Launches, Smoother Shifts & Improved Clutch Control Like No Other Pedal Mod You've Experianced Before Guaranteed! Visit www.RJMPerformance.com or Email Ryan@RJMPerformance.com Also Don't Forget to Like us on Facebook www.facebook.com/RJM-Performance

02-09-2014, 08:27 AM	#14 (permalink)
Ryan @ RJM Enthusiast Member Join Date: Aug 2012 Location: Ontario Canada Posts: 345 Drives: 09' G37S Coupe Rep Power: 14	Orders before noon today will ship tomorrow AM __________________ Home of the A.F.P. Upgraded Clutch Pedal System. Smoother Launches, Smoother Shifts & Improved Clutch Control Like No Other Pedal Mod You've Experianced Before Guaranteed! Visit www.RJMPerformance.com or Email Ryan@RJMPerformance.com Also Don't Forget to Like us on Facebook www.facebook.com/RJM-Performance

02-19-2014, 07:54 PM	#15 (permalink)
Shotta Enthusiast Member Join Date: Apr 2012 Location: Niagara Posts: 316 Drives: 2010 370z black M6 Rep Power: 15	Hello Ryan, for this Redline/Synchromesh fluid cocktail you mention, are you just mixing 50/50 or some other ratio? Thanks. __________________ 6MT - designed for perfectionists 7AT - designed for enthusiasts

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