MCS Triples or Ohlins TTX Triples?

[e36clubracer]

Originally Posted by slicer

I have gone with rates slightly higher than their recommendation. I can tell you that I see no reason to pick rates higher than that with the TTX. My car weighs 3250 with 1/2 tank. Have the people you spoke with been happy? Not sure why it's a bad thing if PSI recommends spring rates that work well?

It’s two fold, one people don’t know what they’re getting and two the valving window maybe may narrow or narrower than the MCS.

I’m trying to make a highly informed decision before I drop 10-15k on some suspension.

[admranger]

Originally Posted by e36clubracer

I’m trying to make a highly informed decision before I drop 10-15k on some suspension.

Immediately disqualified from forum. Ban user.

[nicksm3]

Originally Posted by MaX PL

syt, you should post some videos of some laps at LRP and Watkins if you go there this season.

I have bunch o YouTube stuff at Limerock, The Glen....and I'm on MCS 2ways and cannot be happier! Any questions just ask

https://www.youtube.com/c/SmoothisFast

[tdott]

How long do MCS 2WNR last before a rebuild? Typically.

[SYT_Shadow]

Originally Posted by tdott

How long do MCS 2WNR last before a rebuild? Typically.

I don't know, I haven't needed a rebuild yet. The 3WR on one car has 3 seaons on it, 25k miles and +65 track days

[ThunderMoose]

Originally Posted by tdott

How long do MCS 2WNR last before a rebuild? Typically.

I have them rebuilt every two years. More preventative than any noticeable degradation.

[e36clubracer]

Just an update, after much deliberation I decided on MCS. Bimmerworld is in a place to provide support now and in the future with car setup where somebody like PSI selling the Ohlins isn't fully dialed into BMWs. I'm sure PSI TTX is a good setup too but for me Bimmerworld and MCS was a better direction.

I stepped it up though and went with the 4-ways. I think I may have been the first person to order those from Bimmerworld?

I can't wait to get them on the car and do some tuning sessions.

[RickyBobby]

Originally Posted by e36clubracer

Slicer, I know PSI does good work. But everyone I've heard from on the TTX goes with that PSI gave them. Nobody really knows why other than what PSI says. I've heard you can valve the TTX how you like but everyone seems to stick with the basic config from PSI. But yes to your point you can work with a shop on spring rates. Maybe I'm expecting too much but at the same time at the price point I expect more?

Honestly leaning towards the MCS 3 way or entertaining the MCS 4 way too. Hoping to get some more info from BW tomorrow on those.

I originally went with higher spring rates because I thought I knew better, but ended up going back to PSI's recommended setup. It's hard to explain, but the ohlins really don't need the high spring rates. I didn't believe it until I experienced it for myself.

All PSI does is suspension.. They service shocks for many pro teams and do have a lot of (propriety) data that they aren't directly letting on to imo. Their baseline setup was 90% of the way there for me. I changed shock settings and ride heights based on my testing, and PSI was fantastic along the way in terms of listening to my handling feedback and guiding me on what to change. These guys know their stuff even if they don't only focus on BMW.

From my experience, they're on par with the top notch support you get from bimmerworld. You can't really go wrong with either company.


Edit: I see you went with the MCS! Can't wait to hear your review on those 4 ways. Part of what you are buying into is the support and you've got some of the best with James and crew.

[tlrid3r]

Originally Posted by e36clubracer

Thanks for looking out but I'll be OK.

Also if you have the TTXs, I assume you got them from PSI? How were they with support/rebuild times, etc?

I got a set of 2way TTX from PSI and recently had a rebuild done after 4 years. Still great service and they have helped me out 2 other times sorting out my suspension to accommodate ride height preferences and spring change/recommendations due to tire type. Plus they are local to me so. Seals the deal.

[e36clubracer]

Originally Posted by tlrid3r

I got a set of 2way TTX from PSI and recently had a rebuild done after 4 years. Still great service and they have helped me out 2 other times sorting out my suspension to accommodate ride height preferences and spring change/recommendations due to tire type. Plus they are local to me so. Seals the deal.

I tried to work with PSI but it was like pulling teeth to get information. It seemed either they didn't know or didn't want to divulge. Either way that doesn't work for me. I am fairly close to them too and actually was at Sonoma Raceway this last weekend. If am dropping $10k+ on some shocks I want somebody I can work with to help dial them in. I did not get the impression that was in their scope of capabilities on BMWs. Maybe I was not asking the right questions or talking to the right people?

[PrimeBMW]

Try AR Motorsports 503-697-3311. Martin will talk with you freely about your needs and set up. Personally he's had 4-5 sets of MCS on different cars and makes. The participate and support race and HPDE.

[Adrian g.]

I'm on MCS 3-way with remotes, running 600/900 springs. Couldn't be happier with this setup. Performs very well on the track, highly adjustable and very comfortable on the street with 0 noise.

[//steve\\]

At some point I really want to feel just how different the 3-way is from 2WNR for the MCS. So far though very happy with my 2WNR. On 500/800 springs and feel like more would easily be doable on the street without a massive comfort sacrifice.

[slicer]

Originally Posted by e36clubracer

I tried to work with PSI but it was like pulling teeth to get information. It seemed either they didn't know or didn't want to divulge. Either way that doesn't work for me. I am fairly close to them too and actually was at Sonoma Raceway this last weekend. If am dropping $10k+ on some shocks I want somebody I can work with to help dial them in. I did not get the impression that was in their scope of capabilities on BMWs. Maybe I was not asking the right questions or talking to the right people?

From my perspective you were looking for more out of PSI than they are. PSI isn't a typical shop specializing in a platform. They are a suspension rebuilder, and Ohlins importer. They put together the packages. They have guidance on spring rates but look to the dealer or race team to drive the spec. You would be better served buying the kit from a dealer with experience with the kit. It's the equivalent of calling MCS to get setup info. That's not what you did, you got info from a MCS dealer.

[SYT_Shadow]

Originally Posted by //steve\\

At some point I really want to feel just how different the 3-way is from 2WNR for the MCS. So far though very happy with my 2WNR. On 500/800 springs and feel like more would easily be doable on the street without a massive comfort sacrifice.

It's large. I have one car on each.

MCS 2WNR feels wonderful until you've tried the 3WR.

[e36clubracer]

Originally Posted by slicer

From my perspective you were looking for more out of PSI than they are. PSI isn't a typical shop specializing in a platform. They are a suspension rebuilder, and Ohlins importer. They put together the packages. They have guidance on spring rates but look to the dealer or race team to drive the spec. You would be better served buying the kit from a dealer with experience with the kit. It's the equivalent of calling MCS to get setup info. That's not what you did, you got info from a MCS dealer.

Respectfully I can agree to disagree on what I got from PSI. They are the only one that actively markets a TTX kit for E92 M3s. My experience was not bad in anyway, it was just average. I had to call and follow-up multiple times to get an estimate put together. They said I can valve the shocks however I like but they said this is what we spec all our kits with and people like them. I asked could you explain what testing was done to get to these spring rates and valving? They just said it was based on customer experience and left it at that. Honestly I need more than that for the price level these products are being sold at. The cost of these shocks are at the very top of options.

I fully understand what PSI is capable of and the TTX platform looks to be a very high quality product. There is no BMW tuner (I know the gt4 factory cars are using them on the f82 but that is a spec package)that is racing with these shocks to truly dial them in. If there is please correct me. Another thing to note is I am unaware of any club racers using these shocks currently. If they are they aren't actively talking about them or the numbers are very low.

I was able to have great in-depth conversations with multiple people at Bimmerworld about multiple setup options regarding rates, valvling, spring heights, swaybars, etc, etc. I decided to setp it up and went with the 4-ways as something I can leverage the experience from a good friend who has worked previously as a race engineer for an IMSA team. Though I fully expect to rely on Bimmerworld to give me a good starting point and will likely bounce ideas off them in the future. But to your point Bimmerworld seems much more capable as they specialize in BMWs while PSI does not.

[rhyary]

Can someone explain the difference between 3-way and 4-way?

[//steve\\]

3-way usually gives you rebound (low speed I believe), and then both high and low speed compression adjustment.

4-way gives you the ability to adjust high and low speed rebound independently.

[SYT_Shadow]

Originally Posted by rhyary

Can someone explain the difference between 3-way and 4-way?

At least in MCS, 3W gives you rebound, low speed compression and high speed compression. Over a 2W it separates compression into low and high speed

4W would be low and high speed rebound separated.

The 3W is magic for the road warriors out there because you adjust the high speed compression down and the car just glides over expansion joints etc while retaining excellent manners everywhere else.

It's so good that I'm moving the CS from the 2WNR to the 3W and will only buy 3W hereafter.

[e36clubracer]

The MCS 4 ways just came in. The fit and finish is top notch for sure.

Install scheduled for late next week.

[///Mobbin]

Have never seen MCS 4-ways before, congrats on the new kit!

[SYT_Shadow]

I love that they went with gold for the remote reservoirs

I suppose both rebound settings are on the shock body and both compression are on the remote canister?