Need feedback on JRZ RS Double vs JRZ RS1 vs Tein SRC

[cjd]

Originally Posted by dp1

Ordered JRZ RS TWO from CSG after lengthy discussion with @CSG Mike. Much appreciate all replies though it appears that few run these...unless they missed this post. Will get Ohlins rebuilt/resprung to 500lb/600lb and revalved, then swap at the end of each season when the used set gets serviced.

I'm going to guess the price is outside the normal range for folks that make as lot of noise about their purchase... And fewer would have had the comparison you sought. Look forward to impressions. I have maybe 3500 miles and 16 AutoX events on the Teins. I'm reasonably happy with them, but suspect you do get more for your money as you spend more.

[dp1]

Originally Posted by toeout

As a data point, I sent my MCS 2-way remotes in for rebuild this winter after 30K miles on the street plus auto-x runs. They didn't feel any different than when they were new, but I just wanted to have the internals checked. MCS said that the shocks looked great inside and didn't need to be rebuilt. Since they had them apart already, I had MCS refresh all of them anyway.


Next time I go to at least 60K or when something feels off. Also the turnaround between shipping the shocks out and getting them back was one week.

Great feedback, thank you. I book track events before the season starts and it's hard for me to make up lost time. Also I could lose as much as I pay for service or more if something goes wrong during the busy track season. I've been there

All the best

[kster1]

@dp1

A quick question for you. I used the Ohlins R&T for a while with 350F/425R Eibach springs. With this setup, the rear of the car sat higher due to the increase in spring rate. When you go to 500lb front/600lb rear, what springs will you use? Are there shorter springs which fit?

I'm currently running the TEIN SRC coilovers. But like you, it would be nice to have a second set of coilovers to switch out to. I'd also like to send in the Ohlins for a rebuild and revalve to handle a higher spring rate.

[dp1]

Originally Posted by kster1

@dp1

A quick question for you. I used the Ohlins R&T for a while with 350F/425R Eibach springs. With this setup, the rear of the car sat higher due to the increase in spring rate. When you go to 500lb front/600lb rear, what springs will you use? Are there shorter springs which fit?

I'm currently running the TEIN SRC coilovers. But like you, it would be nice to have a second set of coilovers to switch out to. I'd also like to send in the Ohlins for a rebuild and revalve to handle a higher spring rate.

Hi, I'm using Eibach 375f/425r. Ohlins service tech ordered and installed them for me during last service. I would recommend reaching out to them. I'm at a racetrack now and I just realized that I've been a couple of clicks too soft before...big difference between-12 and -10. I wonder if 425f/500r or 500f/600r would be more optimal for Ohlins track use...if somebody can chime in, please...

Pics show current gap (resprung Ohlins)

[CSG Mike]

Originally Posted by kster1

@dp1

A quick question for you. I used the Ohlins R&T for a while with 350F/425R Eibach springs. With this setup, the rear of the car sat higher due to the increase in spring rate. When you go to 500lb front/600lb rear, what springs will you use? Are there shorter springs which fit?

I'm currently running the TEIN SRC coilovers. But like you, it would be nice to have a second set of coilovers to switch out to. I'd also like to send in the Ohlins for a rebuild and revalve to handle a higher spring rate.

You can independently adjust height. Keep in mind that with a stiffer spring, you will have overall less bump and droop stroke, since you have less spring articulation. The major challenge with the Ohlins is the limited range of height adjustment int he rear...

[CSG Mike]

@ImperiousRex has experience with the JRZ RS(2) and Tein SRC on track...

[enivid]

Originally Posted by dp1

Ordered JRZ RS TWO from CSG after lengthy discussion with @CSG Mike. Much appreciate all replies though it appears that few run these...unless they missed this post. Will get Ohlins rebuilt/resprung to 500lb/600lb and revalved, then swap at the end of each season when the used set gets serviced.

I went from ohlins to jrz and our cars seem very similar. We better become friends and start trading notes.

[dp1]

Originally Posted by enivid

I went from ohlins to jrz and our cars seem very similar. We better become friends and start trading notes.

Hello friend

I'll pm you

[Apex-Apex]

I'm running JRZ RS Pro also. Great coilovers but I haven't tried anything else for the FRS. I had SRC on my s2000 but it's a different platform.

[Racecomp Engineering]

Here's our brief write up on the JRZ RS dampers we tested for them way back in 2012:
http://www.ft86club.com/forums/showthread.php?t=11759

Myles did a LOT more with them than what's in that thread.

- Andrew

[dp1]

Originally Posted by Apex-Apex

I'm running JRZ RS Pro also. Great coilovers but I haven't tried anything else for the FRS. I had SRC on my s2000 but it's a different platform.

Cool, and you're one step up with external canisters on the Pro. I talked to several people on the racetrack about JRZ and everyone raved about them though nobody has them on a twin. Not sure if the range of clicks is the same bw TWO and Pro lines - would like to exchange notes about cursory settings for street and track as I'm still learning about 2-way adjustability. Thanks

[Apex-Apex]

Originally Posted by dp1

Cool, and you're one step up with external canisters on the Pro. I talked to several people on the racetrack about JRZ and everyone raved about them though nobody has them on a twin. Not sure if the range of clicks is the same bw TWO and Pro lines - would like to exchange notes about cursory settings for street and track as I'm still learning about 2-way adjustability. Thanks

I'm still trying to figure this out myself. It's been a few track days but I think I'm getting closer.

[xwd]

Originally Posted by toeout

As a data point, I sent my MCS 2-way remotes in for rebuild this winter after 30K miles on the street plus auto-x runs. They didn't feel any different than when they were new, but I just wanted to have the internals checked. MCS said that the shocks looked great inside and didn't need to be rebuilt. Since they had them apart already, I had MCS refresh all of them anyway.


Next time I go to at least 60K or when something feels off. Also the turnaround between shipping the shocks out and getting them back was one week.

To echo what Kristo said, I had the second set of MCS DA shocks made for our cars and they have been on my car for 3+ years now. They still feel the same now after 20K street miles, lots of autocrosses, and track days. I'm taking mine off tonight to get refreshed and revalved for stiffer springs in the future. Turnaround again should be maybe two weeks. They aren't cheap but neither are the other options mentioned. The J in JRZ is the one who started Moton/MCS btw.

[dp1]

Of those of you who use(d) JRZ RC doubles, what springs/sways/damper settings do you use track vs street, out of 14 clicks for compression and 24 clicks for rebound?

For example, for front springs (~500lb/ft or 9kg/mm) + rear springs (~600 lb/ft or 11 kg/mm), JRZ recommends below settings as a starting point for street and track.
First go full clockwise to full soft, then go counterclockwise to the first groove/click - the starting/0 point - then stiffen by going further counterclockwise for a specified number of clicks. In other words, C6 below means it refers to the compression knob and once you get to full clockwise/soft, go counterclockwise and stop at the 7th groove/click (fist click is 0 then 6 more from there).

Street Front C6R8
Street Rear C4R5
Track Front C8R12
Track Rear C7R8

I understand that rough surface at Sebring will benefit from different settings than a brand new smooth surface at Watkins Glen. I have more to read up on, from resources shared by @CSG Mike and web pages like http://www.renntrack.com/forums/show...e-As-requested, https://rideapart.com/articles/suspe...ession-damping, http://www.hyperracing.com/pages/tec...y_no_more.aspx, etc.

Please PM me if you prefer to keep your settings private, thank you.