High-end track coilover kit recommendations

[4Y_stack_acceleration]

Between KW Clubsport 2-way/3-way, JRZ-RS2/RS Pro, MCS 2-way/3-way, TC Kline, Nitron, what would you recommend?

For 15-20 events a year; budget is up to $7,000 on the parts.

Additional information if relevant:

* Coming from stock dampers and springs. Car currently just has camber plates and monoballs in terms of suspension changes, and pacing 1:33-36 on NJMP Thunderbolt on MPS4S 255/275x35, going to do 295x30 square at the same time I upgrade to coilovers early next year.

* Car is also driven to the track, not trailered. Weekend car only but it's my only car (live in NYC); I have a high tolerance for NVH and ride discomfort but will still be using the car for street purposes and driving around New York area potholes.

* Also probably will not be lowering front ride height given potholes and garage ramps.

* Not sure yet if I will upgrade sway bars, but let me know if you recommend doing it at the same time.

[RugbyBro]

I’m on MCS 2WR True Coil Rear with 700/600 spring combo, vorschlag plates, GTMore sways, SPL Endlinks, and BW front monoballs. I do between 10-15 days a season (Mar-Oct). Live in Seattle which has comparable roads to NYC, I’d say that I’m very happy with the setup. 700/600 is at the upper end of what I find livable as a dual purpose car (800/700 would be max). The trade off is worthwhile though, on track the damping is sublime.

There’s a lot of great coil over options but I went specifically with MCS due to customer service and ease of accessing their support. It’s very easy and reasonable to get your shocks rebuilt or fixed by them, and they get it done quick.

[mikerunt]

I’m on MCS 3ways right now with full SPL and it’s a dream.

[RugbyBro]

I’ll add that this is where I sit on height vs stock suspension (YMB) - I’m still able to get around my pothole and cobblestone riddled city, tho I do intentionally drive around or take certain angles thru rough conditions. So you have plenty of adjustability between this and stock height tbh.

[heyyouduh]

Originally Posted by 4Y_stack_acceleration

Between KW Clubsport 2-way/3-way, JRZ-RS2/RS Pro, MCS 2-way/3-way, TC Kline, Nitron, what would you recommend?

For 15-20 events a year; budget is up to $7,000 on the parts.

Additional information if relevant:

* Coming from stock dampers and springs. Car currently just has camber plates and monoballs in terms of suspension changes, and pacing 1:33-36 on NJMP Thunderbolt on MPS4S 255/275x35, going to do 295x30 square at the same time I upgrade to coilovers early next year.

* Car is also driven to the track, not trailered. Weekend car only but it's my only car (live in NYC); I have a high tolerance for NVH and ride discomfort but will still be using the car for street purposes and driving around New York area potholes.

* Also probably will not be lowering front ride height given potholes and garage ramps.

* Not sure yet if I will upgrade sway bars, but let me know if you recommend doing it at the same time.

The KW clubsports, tcklines/koni and the jrs rs2 are twin tube dampers. If your primary purpose is track id go with monotube stuff. Mcs and jrz both are well regarded. I use mcs because mcs is local to me. I know quite a few shock shops service jrz. I do not know if anyone other than mcs can rebuild or service mcs shocks, I've never looked into it since mcs is local to me. With a budget of 7k I would go with what I did and go with the 1wnr. A few years down the line when you rebuild you can upgrade to 2way remotes.

I personally would not drive a car fitted with nice suspension components in winter weather though. Would rather park it for winter and find Another way to get around.

[robbo mcs]

Who do you have locally who can service the dampers, ie rebuild, revalve etc. Who can you go to for advice on shock tuning and setup? Having a local shop that understands and specialises in a particular brand is really helpful. For me that is something that really influences my decision making process.

[Carfreak70852]

Recently purchased MCS 3-way remotes from Racewerkz. They’re incredible. Excellent customer service, too (both from MCS and Racewerkz).

[mikerunt]

Originally Posted by Carfreak70852

Recently purchased MCS 3-way remotes from Racewerkz. They’re incredible. Excellent customer service, too (both from MCS and Racewerkz).

Same same!!!

[SYT_Shadow]

2w or 3w MCS from Bimmerworld.

I've had jrz and mcs on equivalent cars, mcs is definitely quieter and more dd friendly

[GuyLedouche]

Originally Posted by SYT_Shadow

2w or 3w MCS from Bimmerworld.

I've had jrz and mcs on equivalent cars, mcs is definitely quieter and more dd friendly

What noise are you talking about?

[SYT_Shadow]

Originally Posted by GuyLedouche

What noise are you talking about?

Clicking/clacking in the shocks. In comparison, the mcs were dead silent

[GuyLedouche]

Originally Posted by SYT_Shadow

Clicking/clacking in the shocks. In comparison, the mcs were dead silent

Same camber plates and top mounts with both MCS and JRZ? I didn’t notice much noise with my JRZ but admittedly haven’t driven on MCS.

[SYT_Shadow]

Originally Posted by GuyLedouche

Same camber plates and top mounts with both MCS and JRZ? I didn’t notice much noise with my JRZ but admittedly haven’t driven on MCS.

Yes. This was back in the E90 and E92 days, one car had MCS and the other JRZ, both 2WNRs.

[GuyLedouche]

Originally Posted by SYT_Shadow

Yes. This was back in the E90 and E92 days, one car had MCS and the other JRZ, both 2WNRs.

Ah. Interesting. Regardless my RS pros treat me well on track and on the road previously.

[SYT_Shadow]

Originally Posted by GuyLedouche

Ah. Interesting. Regardless my RS pros treat me well on track and on the road previously.

Jrz is a quality suspension for sure

[M1500Z]

I would look at Öhlins TTX 2 ways even though they are over your budget. I think they are similar in cost to MCS 2 way remotes though. I've been running a set for a little while now and am very impressed with them. They were built by 3DM Motorsport with Vorshlag top hats and Swift 14k/12k springs so similar rates to what people are typically running on MCS for a good bit of track duty.

One thing that is a bit different about the TTX is they are a twin-tube design and are pressure balanced unlike a monotube damper that has to run a very high gas pressure to prevent cavitation. What that means is the TTX dampers only run ~40psi (compared to ~150-200psi like a monotube), and so don't have to overcome that additional resistance which translates to a more effective damper and a quite comfy street ride.

I have a post about my experience if you want to know more. I think any true high-end damper is going to worlds better and completely transformative, but given the cost, take your time and do some learning—you'll only benefit from it.

[FaRKle!]

Originally Posted by M1500Z

One thing that is a bit different about the TTX is they are a twin-tube design and are pressure balanced unlike a monotube damper that has to run a very high gas pressure to prevent cavitation. What that means is the TTX dampers only run ~40psi (compared to ~150-200psi like a monotube), and so don't have to overcome that additional resistance which translates to a more effective damper and a quite comfy street ride.

TTX are quite different from a typical "twin tube" damper such that I wouldn't associate them with them what "twin tube" colloquially means.

TTX are also a "through rod" design, which keeps the gas forces constant through the stroke.

It really is an awesome design.

[sc_tr0jan_m3]

Mcs or bust. Their customer service and rebuild turn around time is impeccable.

Have them on my e46 race car and considering the upgrade for my daily f80.

[M1500Z]

Originally Posted by FaRKle!

TTX are quite different from a typical "twin tube" damper such that I wouldn't associate them with them what "twin tube" colloquially means.

TTX are also a "through rod" design, which keeps the gas forces constant through the stroke.

It really is an awesome design.

You're correct in that they are quite a bit different than a normal twin tube—fair point and I wasn't intending to lump them together. You're probably already aware that not all TTX dampers are through-rod though, wit the TTX 36 in the base kit I linked to being an example.

[4Y_stack_acceleration]

Originally Posted by heyyouduh

The KW clubsports, tcklines/koni and the jrs rs2 are twin tube dampers. If your primary purpose is track id go with monotube stuff. Mcs and jrz both are well regarded. I use mcs because mcs is local to me. I know quite a few shock shops service jrz. I do not know if anyone other than mcs can rebuild or service mcs shocks, I've never looked into it since mcs is local to me. With a budget of 7k I would go with what I did and go with the 1wnr. A few years down the line when you rebuild you can upgrade to 2way remotes.

I personally would not drive a car fitted with nice suspension components in winter weather though. Would rather park it for winter and find Another way to get around.

Any thoughts on coilover covers like these: https://www.amazon.com/ISC-Suspensio...1zcF9hdGY&th=1

Came across an ad for a similar product on Instagram today.

[4Y_stack_acceleration]

Originally Posted by heyyouduh

The KW clubsports, tcklines/koni and the jrs rs2 are twin tube dampers. If your primary purpose is track id go with monotube stuff. Mcs and jrz both are well regarded. I use mcs because mcs is local to me. I know quite a few shock shops service jrz. I do not know if anyone other than mcs can rebuild or service mcs shocks, I've never looked into it since mcs is local to me. With a budget of 7k I would go with what I did and go with the 1wnr. A few years down the line when you rebuild you can upgrade to 2way remotes.

I personally would not drive a car fitted with nice suspension components in winter weather though. Would rather park it for winter and find Another way to get around.

Surprisingly having a hard time finding noob/explainer threads on this so apologies... what is the benefit of remote reservoirs and any downsides?

[robbo mcs]

Originally Posted by 4Y_stack_acceleration

Surprisingly having a hard time finding noob/explainer threads on this so apologies... what is the benefit of remote reservoirs and any downsides?

The main advantage is supposed to less heat soak, due to better heat dissipation and/or increased volume. The ability to locate the reservoir wherever you wish is advantageous as well. Frees up a little space around the actual shock, and lets you locate the reservoir in a clean and convenient location, makes adjustment easier too. Servicing and maintenance a little easier as well.

By the same token, if you are short of space, the location can actually be a disadvantage. Also, whenever you run lines, that theoretically increases the risk of failure, either from a connection failure or from road debris, panel damage etc.