JRZ RS1 shocks.

STALKER · 01-06-2012, 06:29 PM

New shocks from JRZ.
Looks promising for those of us looking for a good dual purpose set up. SA, monotube damper.

http://www.jrzsuspension.com/products/rs-line/rs1.html

the infamous... · 01-07-2012, 06:13 AM

damn, those r no joke.

Jaypod · 01-07-2012, 07:20 AM

Nice looking set up!

paradocs98 · 01-07-2012, 10:55 AM

Looks tempting. I'm sure they're $$, but probably worth it.

From JRZ: "With a few clicks you can turn your smooth street car into a crisp, rock solid track car in seconds." -- Where do you suppose the adjustment is made? Would it require jacking the car first? Is the ride height fixed?

STALKER · 01-07-2012, 11:02 AM

Quote:

Originally Posted by paradocs98

Looks tempting. I'm sure they're $$, but probably worth it.

From JRZ: "With a few clicks you can turn your smooth street car into a crisp, rock solid track car in seconds." -- Where do you suppose the adjustment is made? Would it require jacking the car first? Is the ride height fixed?

Threaded body, so it's a coilover. From the pics it seems the adjustments are from the top of the shock assembly.

wwjd15 · 01-07-2012, 11:38 AM

For that much $$$, I would pay a bit more for the RS Pro. Everything is still "dual purpose" but with a lot more performance and wider adjustment.

STALKER · 01-07-2012, 11:52 AM

Quote:

Originally Posted by wwjd15

For that much $$$, I would pay a bit more for the RS Pro. Everything is still "dual purpose" but with a lot more performance and wider adjustment.

RS and RS Pro are not that street friendly from what I have heard.
I think these will be similar to Moton Street Sports.

wwjd15 · 01-07-2012, 12:52 PM

Quote:

Originally Posted by STALKER

RS and RS Pro are not that street friendly from what I have heard.
I think these will be similar to Moton Street Sports.

Why aren't they street friendly? I have had both RS and RS Pro on my street cars, I DD and track them. Never had problem or notice anything wrong.

STALKER · 01-07-2012, 05:16 PM

Quote:

Originally Posted by wwjd15

Why aren't they street friendly? I have had both RS and RS Pro on my street cars, I DD and track them. Never had problem or notice anything wrong.

"Street friendly" is subjective I guess. I few Porsche owners I know that run JRZs find them harsh on the street.

wwjd15 · 01-07-2012, 05:36 PM

Quote:

Originally Posted by STALKER

"Street friendly" is subjective I guess. I few Porsche owners I know that run JRZs find them harsh on the street.

They must have wrong springs rate then. That shouldnt be the problem at all.

STALKER · 01-07-2012, 05:43 PM

Quote:

Originally Posted by wwjd15

They must have wrong springs rate then. That shouldnt be the problem at all.

Cars are set up at a very reputable local shop.

wwjd15 · 01-07-2012, 05:58 PM

Quote:

Originally Posted by STALKER

Cars are set up at a very reputable local shop.

I don't mean they have bad set up. Just saying that they give up the comfort for performance. Nothing wrong with that just some personal preference. I mean these aren't the reason those shocks arent street friendly. Same as the RS1, if u put higher springs rate and tune it harshy, they will become not street friend either.

STALKER · 01-07-2012, 06:10 PM

Quote:

Originally Posted by wwjd15

I don't mean they have bad set up. Just saying that they give up the comfort for performance. Nothing wrong with that just some personal preference. I mean these aren't the reason those shocks arent street friendly. Same as the RS1, if u put higher springs rate and tune it harshy, they will become not street friend either.

Very true.

PINHEAD · 01-07-2012, 07:31 PM

i got a ride in my friend Fruitcake's car today and its very comfortable, its about same firmness as stock on comfort setting but rides even better. He has the RS, not the RS1s. Like ricky said, its all due to springs but the nice thing about JRZ shocks is that the shock is strong enough to compensate for lower spring rates compared to the likes of KW Clubsport/Competition.

JAJ · 01-07-2012, 07:39 PM

Ride comfort is a function of the damper curve, and the straighter it is, the harsher it is. That's why AST is making so much fuss about their hyper-digressive valving. That sharp bend in the curve delivers good motion control at the track and a comfortable ride on the drive home. JRZ, Penske, Koni, Bilstein, Sachs and so on can all deliver something similar, but it's a racing shock feature that most racers don't care about unless they're doing 12 and 24 hour endurance events. Most street shocks can't afford the technology to do this and still stay at the price points they're aimed at.

flipm3 · 01-08-2012, 01:22 AM

I've seen reviews from Evo X, STis, and the 1M. They all say great things about these dampers.

These are what I plan on getting hopefully by summer time for my E46 M3. Some say that it may be worthwhile to upgrade to RS or RS Pro, but for me personally, having a single adjustable is just enough for my goals and interests.

I'm excited to see more reviews on E46 and E90 M3s.

STALKER · 01-08-2012, 03:29 PM

Quote:

Originally Posted by JAJ

Ride comfort is a function of the damper curve, and the straighter it is, the harsher it is. That's why AST is making so much fuss about their hyper-digressive valving. That sharp bend in the curve delivers good motion control at the track and a comfortable ride on the drive home. JRZ, Penske, Koni, Bilstein, Sachs and so on can all deliver something similar, but it's a racing shock feature that most racers don't care about unless they're doing 12 and 24 hour endurance events. Most street shocks can't afford the technology to do this and still stay at the price points they're aimed at.

Are the AST shocks digressive on both rebound and compression? I read somewhere on the Internet that the JRZ RS1 is digressive on compression and linear on rebound. I'll try again to find the source.

EDIT.
Here is where I read it.
http://www.the370z.com/brakes-suspen...s-release.html

JamesClay · 01-10-2012, 01:10 PM

Quote:

Originally Posted by STALKER

Are the AST shocks digressive on both rebound and compression? I read somewhere on the Internet that the JRZ RS1 is digressive on compression and linear on rebound. I'll try again to find the source.

Most high aero cars are digressive on rebound to hold the car down to the ground - DP cars, Formula, etc.

Malek@MRF · 01-10-2012, 01:22 PM

Quote:

Originally Posted by wwjd15

Why aren't they street friendly? I have had both RS and RS Pro on my street cars, I DD and track them. Never had problem or notice anything wrong.

That's a subjective opinion you have.

What you consider "streetable", most may not.

wwjd15 · 01-10-2012, 01:50 PM

Quote:

Originally Posted by Malekreza11

That's a subjective opinion you have.

What you consider "streetable", most may not.

That's my personal opinion for sure.

I have Moton Club Sport on my M3, the ride quality I have it's about the same as MDM. Since you are local, I'm happy to give you a ride in my car on streets or tracks. I want to hear your opinion.

STALKER · 01-10-2012, 02:55 PM

Quote:

Originally Posted by JamesC

Most high aero cars are digressive on rebound to hold the car down to the ground - DP cars, Formula, etc.

James,
I understand you are running these on your E46.
Can you give us your impression of them please, especially say compared to Moton Street Sports.

Thanks.

Right now I'm torn between JRZ RS1s and the upcoming Ohlins R&T kit.

JamesClay · 01-10-2012, 03:01 PM

They have a wide range of control and I like them. Some dampers just feel rough - not stiff, but rough. These do not. Certainly in their range of adjustment they go from very compliant (that is what makes the RS double such an awesome rain damper), to responsive (connected feeling, not harsh), to more stiffness than you need. Very few dampers really cover this range both fully and successfully.

01-06-2012, 06:29 PM	#1
STALKER Brigadier General Drives: 2008 E90 M3 Join Date: Feb 2009 Location: Toronto, ON Posts: 3,408 iTrader: (5)	JRZ RS1 shocks. New shocks from JRZ. Looks promising for those of us looking for a good dual purpose set up. SA, monotube damper. http://www.jrzsuspension.com/products/rs-line/rs1.html __________________ 2008 AW/FR E90 M3-SOLD 2013 991 C4S-Produced, but not delivered. Last edited by STALKER; 01-06-2012 at 06:35 PM.
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01-07-2012, 06:13 AM	#2
the infamous... Lieutenant General Drives: like I'M BOUT THAT LIFE Join Date: Jul 2008 Location: PARADISE aka DAWNTOWN Posts: 16,890 iTrader: (0)	damn, those r no joke. __________________ "simple is clean" -The ///ModFather [ iND ] - [ eAs ] - [ ACM ] - [ LTMW ] - [ AA ]

01-07-2012, 11:38 AM	#6
wwjd15 Drives: 11 E92 M3 MR Join Date: May 2009 Location: Orange County Posts: 1,235 iTrader: (6)	For that much $$$, I would pay a bit more for the RS Pro. Everything is still "dual purpose" but with a lot more performance and wider adjustment. __________________ Build #1 NA: Big Willow 1:30.449 (NT01), Buttonwillow 13CW 1:56.634 (NT01), Autoclub Speedway Fontana 1:49.422 (NT01), Mfest2012 LMVS 1:59.002 (NT01+AD08), Streets of Willow 1:22.36 (RS3), Chuckwalla 2:02.46 (RS3), Laguna Seca 1:41.74 (R888), Infineon 1:50.346 (R888) Build #2 VF SC: Buttonwillow 13CW 1:54.037 (TD), Big Willow 1:29.63 (R888)

01-07-2012, 07:31 PM	#14
PINHEAD Motorsport Passion!!! Drives: E92M3/997.2RS Join Date: Feb 2011 Location: Los Angeles Posts: 805 iTrader: (6)	i got a ride in my friend Fruitcake's car today and its very comfortable, its about same firmness as stock on comfort setting but rides even better. He has the RS, not the RS1s. Like ricky said, its all due to springs but the nice thing about JRZ shocks is that the shock is strong enough to compensate for lower spring rates compared to the likes of KW Clubsport/Competition. __________________

01-08-2012, 01:22 AM	#16
flipm3 E46 + E90 Drives: E46 M3 + E90 M3 Join Date: Jul 2008 Location: Illinois Posts: 2,483 iTrader: (1) Garage List 2009 BMW M3 [0.00] 2002 BMW M3 [0.00]	I've seen reviews from Evo X, STis, and the 1M. They all say great things about these dampers. These are what I plan on getting hopefully by summer time for my E46 M3. Some say that it may be worthwhile to upgrade to RS or RS Pro, but for me personally, having a single adjustable is just enough for my goals and interests. I'm excited to see more reviews on E46 and E90 M3s. __________________ 2002 E46 M3 6MT \| Jet Black . Black Nappa \| My Build Thread 2009 E90 M3 DCT \| Melbourne Red . Speed Cloth

01-07-2012, 07:20 AM	#3
Jaypod BimmerPost Supporting Vendor Drives: Frozen M3 Join Date: Nov 2008 Location: Toronto Posts: 4,681 iTrader: (7)	Nice looking set up!

01-07-2012, 10:55 AM	#4
paradocs98 Major Drives: 2011 E90 M3 ZCP Join Date: May 2009 Location: NY Posts: 1,199 iTrader: (0)	Looks tempting. I'm sure they're $$, but probably worth it. From JRZ: "With a few clicks you can turn your smooth street car into a crisp, rock solid track car in seconds." -- Where do you suppose the adjustment is made? Would it require jacking the car first? Is the ride height fixed?

01-07-2012, 07:39 PM	#15
JAJ Captain Drives: 2011 Mustang GT 5.0 Join Date: Apr 2008 Location: Vancouver, BC Posts: 896 iTrader: (4)	Ride comfort is a function of the damper curve, and the straighter it is, the harsher it is. That's why AST is making so much fuss about their hyper-digressive valving. That sharp bend in the curve delivers good motion control at the track and a comfortable ride on the drive home. JRZ, Penske, Koni, Bilstein, Sachs and so on can all deliver something similar, but it's a racing shock feature that most racers don't care about unless they're doing 12 and 24 hour endurance events. Most street shocks can't afford the technology to do this and still stay at the price points they're aimed at.

01-10-2012, 03:01 PM	#22
JamesClay BimmerPost Supporting Vendor Drives: BMW 3 Join Date: May 2005 Location: Virginia Posts: 232 iTrader: (0) Garage List 1996 320iT [0.00] 2003 M3 [0.00] 2006 325i [0.00] 2008 M3 [0.00]	They have a wide range of control and I like them. Some dampers just feel rough - not stiff, but rough. These do not. Certainly in their range of adjustment they go from very compliant (that is what makes the RS double such an awesome rain damper), to responsive (connected feeling, not harsh), to more stiffness than you need. Very few dampers really cover this range both fully and successfully. __________________ James Clay http://www.bimmerworld.com http://www.bimmerworldracing.com

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