Coilover choice, Tein SRC or Ohlins R&T

[solidONE]

Originally Posted by CSG David

You are in California, just hit us up if you're interested in a ride just to find out how the SRCs feel. We have been working with Imperious Rex's BRZ for awhile and his JRZ are pretty sweet too.

For sure! I'll probably see you guys at autoclub this weekend. Although, I'm assuming ACS is a pretty smooth track. I would love to feel how well they do over bumpier stuff.

[ja1217]

If anyone is interested in time trialing or racing with NASA, its worth knowing that the Ohlins R&T struts are wider than 40mm in diameter, meaning they are worth 8 points instead of 5 out of the 19 you are allowed before being bumped up into the next class.

Other than this little issue, I've been very happy with my Ohlins and will use them next year for time trialing. Time will tell if my points would have been better spent elsewhere.

[ZDan]

Originally Posted by CSG David

AST 4150 singles would be basically an Ohlins R&T direct competitor. You just can't compare a 1-way adjustable setup to 2-way,

If the rebound/compression damping is in the right range for the 1-way, and remains so throughout the usable adjustment range, of course you can compare them.
That's been my experience with the DFVs on my street/track RX-7. For dedicated well-developed pure track cars, you may need separately adjustable rebound and compression (and for both high- and low-speed) to get an ideal setup at different tracks. IMO, for more "streetish" cars, *if* the ratio of rebound to compression damping is appropriate throughout the adjustment range, I don't see any real drawback, particularly for a street/track application.

I'd definitely rather have 1-way adjustables with good digressive curves with the knee in the right place and with the adjustability primarily being to the low-speed damping, than a 2-way that was too harsh at high speeds and/or too soft in low-speed damping for a given setting.

Come to think of it, I'd rather have separately adjustable high- and low-speed damping than separately adjustable rebound and compression with no hi/lo adjustability. Don't think anybody makes them like that, though...

[CSG David]

If valved correctly, 1-way can be better than 2-way...such as Ohlins > KW V3/CS...which has been my experience. Ohlins definitely met my expectations for a good 1-way so I'm not in argument there.

Originally Posted by ZDan

If the rebound/compression damping is in the right range for the 1-way, and remains so throughout the usable adjustment range, of course you can compare them.
That's been my experience with the DFVs on my street/track RX-7. For dedicated well-developed pure track cars, you may need separately adjustable rebound and compression (and for both high- and low-speed) to get an ideal setup at different tracks. IMO, for more "streetish" cars, *if* the ratio of rebound to compression damping is appropriate throughout the adjustment range, I don't see any real drawback, particularly for a street/track application.

I'd definitely rather have 1-way adjustables with good digressive curves with the knee in the right place and with the adjustability primarily being to the low-speed damping, than a 2-way that was too harsh at high speeds and/or too soft in low-speed damping for a given setting.

Come to think of it, I'd rather have separately adjustable high- and low-speed damping than separately adjustable rebound and compression with no hi/lo adjustability. Don't think anybody makes them like that, though...

[CSG Mike]

Originally Posted by ZDan

If the rebound/compression damping is in the right range for the 1-way, and remains so throughout the usable adjustment range, of course you can compare them.
That's been my experience with the DFVs on my street/track RX-7. For dedicated well-developed pure track cars, you may need separately adjustable rebound and compression (and for both high- and low-speed) to get an ideal setup at different tracks. IMO, for more "streetish" cars, *if* the ratio of rebound to compression damping is appropriate throughout the adjustment range, I don't see any real drawback, particularly for a street/track application.

I'd definitely rather have 1-way adjustables with good digressive curves with the knee in the right place and with the adjustability primarily being to the low-speed damping, than a 2-way that was too harsh at high speeds and/or too soft in low-speed damping for a given setting.

Come to think of it, I'd rather have separately adjustable high- and low-speed damping than separately adjustable rebound and compression with no hi/lo adjustability. Don't think anybody makes them like that, though...

We could arrange for something like that... but it's not cheap to have ANY sort of high speed damping adjustability.

[Lauren]

Originally Posted by Hanakuso

Tein also has an office in Europe but I'm not sure if they service out there.

Tein UK can do servicing and alterations. I'm currently going with a Tein Street Flex setup with EDFC Active Pro. I have got them to revalve the rear dampers to increase rebound 20% and I have custom spring rates.

So it can be done. Not sure what is available on the European mainland though.

[dradernh]

Originally Posted by ZDan

Come to think of it, I'd rather have separately adjustable high- and low-speed damping than separately adjustable rebound and compression with no hi/lo adjustability. Don't think anybody makes them like that, though...

I think you're referring to 4-ways, which are available. I'll wager that they're cost-prohibitive for anyone here, with the very high purchase price being just the down payment on the fully-implemented cost.

I think it's well-funded pro teams that are running them properly; that is, with the assistance of a professional motorsports shock engineer, the hardware and data acquisition necessary to provide the engineer with the data he needs, time on a shaker rig (ideally), and all the ancillary aspects of having the suspension of a top-line pro car dialed in.

Three-ways are a different story. An experienced crew can get those dialed in without major drama, especially if the driver is a capable communicator.

[G-Man]

has much changed in this area? I am getting into a similar boat. I think I might end up with ohlins because I don't think i will know enough to properly set up the 2 ways. and I am more on the 80% street and 20% track side of things

[Racecomp Engineering]

Originally Posted by G-Man

has much changed in this area? I am getting into a similar boat. I think I might end up with ohlins because I don't think i will know enough to properly set up the 2 ways. and I am more on the 80% street and 20% track side of things

oh derp, i should read your entire post. Ohlins are still good, probably the best street + track 1 way out there. Bilstein PSS10 are another good choice but you'll find more feedback on the Ohlins.

- Andy

[Doozer]

Hey suspension guru's

we've outgrown our Ohlins and now need something better.

The high and low speed sections are starting to hurt us, as high speed corners we can't attack the curbing because we have no high speed damping ability. The car literally jumps to the other side of the track.

We've heard great things about SRC
We've heard good things about RCE.
We've heard good things about Moton.
We've heard good things about JRZ.

Does anyone feel like pitching a product?

Price wise, why go 3 way when 4 way is also pricey? Is high speed rebound not so much of a concern?

I apologize in advance. I know NOTHING about suspension, I just turn clicks on the ohlins to make them softer or harder.

[dp1]

Originally Posted by Doozer

Hey suspension guru's



we've outgrown our Ohlins and now need something better.



The high and low speed sections are starting to hurt us, as high speed corners we can't attack the curbing because we have no high speed damping ability. The car literally jumps to the other side of the track.



We've heard great things about SRC

We've heard good things about RCE.

We've heard good things about Moton.

We've heard good things about JRZ.



Does anyone feel like pitching a product?



Price wise, why go 3 way when 4 way is also pricey? Is high speed rebound not so much of a concern?



I apologize in advance. I know NOTHING about suspension, I just turn clicks on the ohlins to make them softer or harder.

There are a few alternatives, one of which is to respring and revalve Ohlins, since you already have them.

[Doozer]

Originally Posted by dp1

There are a few alternatives, one of which is to respring and revalve Ohlins, since you already have them.

Something we've thought about, but at this point we feel we need a little more adjustment for the car.

The ohlins will still stay on the daily-driver car but not for the racer

[CSG Mike]

Originally Posted by Doozer

Hey suspension guru's

we've outgrown our Ohlins and now need something better.

The high and low speed sections are starting to hurt us, as high speed corners we can't attack the curbing because we have no high speed damping ability. The car literally jumps to the other side of the track.

We've heard great things about SRC
We've heard good things about RCE.
We've heard good things about Moton.
We've heard good things about JRZ.

Does anyone feel like pitching a product?

Price wise, why go 3 way when 4 way is also pricey? Is high speed rebound not so much of a concern?

I apologize in advance. I know NOTHING about suspension, I just turn clicks on the ohlins to make them softer or harder.

Let me ask first, why do you feel you outgrew the Ohlins?

[solidONE]

Originally Posted by Doozer

Hey suspension guru's

we've outgrown our Ohlins and now need something better.

The high and low speed sections are starting to hurt us, as high speed corners we can't attack the curbing because we have no high speed damping ability. The car literally jumps to the other side of the track.

We've heard great things about SRC
We've heard good things about RCE.
We've heard good things about Moton.
We've heard good things about JRZ.

Does anyone feel like pitching a product?

Price wise, why go 3 way when 4 way is also pricey? Is high speed rebound not so much of a concern?

I apologize in advance. I know NOTHING about suspension, I just turn clicks on the ohlins to make them softer or harder.

From what I've seen the Ohlins has a very nice blow off on the compression damping at shaft speed over 2" per second. Hard to believe that they'd make the car shoot off curbing. Maybe you should share your settings and compare with what other guys are running before you chuck them altogether.

OTOH if you are determined to replace and sell the Ohlins... shoot me a PM maybe I'll pick them up from you if the price is right.