[chris719]

Originally Posted by gsrbri

Where did you hear about the Ohlins rebuild interval? Definitely not the R&T model

I suppose if you race the car, or run 15+ events per year, that may be the case. However, I would suggest monitoring the tubes/reservoir and address as necessary.

I'd estimate you could run them for a long time if just street driving

From the R&T manual for the F82 part:

Recommended Service Intervals
Racing:
Every 10 hours of operation.
Maximum 20 hours of operation
without service and oil change.
Regular street use: Every 30 000 km

[gsrbri]

Originally Posted by chris719

From the R&T manual for the F82 part:

Recommended Service Intervals
Racing:
Every 10 hours of operation.
Maximum 20 hours of operation
without service and oil change.
Regular street use: Every 30 000 km

Just checked my manual. You are absolutely correct!

I'm thinking that "service" would be inspection and only a rebuild if leaking or an issue encountered.

Can hurt to discuss with the Ohlins rep.

[K9GunSlinger]

Originally Posted by gsrbri

Just checked my manual. You are absolutely correct!

I'm thinking that "service" would be inspection and only a rebuild if leaking or an issue encountered.

Can hurt to discuss with the Ohlins rep.

if you find out, would you mind sharing this with us? i was looking into online vs m perf coils and the time between rebuilds is pretty important to me.

[chris719]

Originally Posted by K9GunSlinger

if you find out, would you mind sharing this with us? i was looking into online vs m perf coils and the time between rebuilds is pretty important to me.

It's really hard to compare. I think we would need input from an engineer who designs these things to know for sure.

The question is, is Ohlins just conservative and wanting to maintain maximum performance? Or, do they really not hold up as well as the KW designed M Performance parts.

I also wonder what street use means exactly. I would think 10 hours on the Cross-Bronx expressway (assuming you're moving) is worse than a track day .

[gsrbri]

Contacted the Ohlins tech rep - according to them, 40,000 - 50,000 miles before required service. They replace the oil, seal, and bushing. Pretty long service interval.

[mhanism]

So been doing a ton of research and looking into ohlins for my M2C. As my set up will be predominately for street use, with occasional track visits. I was researching alternative spring rates as the recommended rates seemed pretty high and a few around here have gone with lower front and rear rates or just lower rear rates.

So I gave Ohlin a call and their tech recommended going with 70nm (400lbs) fronts (vs. 90nm (513lbs) recommended) and leaving the rears at 190nm (1,075lbs). He stressed that the rear rates were not too high and given the rear pressure and less undulations in the rear, you didn't want to have your rear dampers bottom out. Softening up the fronts would have a larger impact on the ride quality given the fronts had much more undulations. He further referenced that the e9x M3 kit came with 60nm front springs on an arguably heavier car, explaining that 70nm was not too soft by any means.

I'm by no means a suspension expert nor have I had much experience with Ohlins enough to understand the technical reasoning, so wanted to get the crowds feedback on the recommended rates above.

Thanks in advance!

[gsrbri]

Originally Posted by mhanism

So been doing a ton of research and looking into ohlins for my M2C. As my set up will be predominately for street use, with occasional track visits. I was researching alternative spring rates as the recommended rates seemed pretty high and a few around here have gone with lower front and rear rates or just lower rear rates.

So I gave Ohlin a call and their tech recommended going with 70nm (400lbs) fronts (vs. 90nm (513lbs) recommended) and leaving the rears at 190nm (1,075lbs). He stressed that the rear rates were not too high and given the rear pressure and less undulations in the rear, you didn't want to have your rear dampers bottom out. Softening up the fronts would have a larger impact on the ride quality given the fronts had much more undulations. He further referenced that the e9x M3 kit came with 60nm front springs on an arguably heavier car, explaining that 70nm was not too soft by any means.

I'm by no means a suspension expert nor have I had much experience with Ohlins enough to understand the technical reasoning, so wanted to get the crowds feedback on the recommended rates above.

Thanks in advance!

I went with their recommended set-up and spring rates for the F87. I drive my M2 as a third vehicle on weekends and to the track. It's a great suspension.

I had it corner balanced and aligned to my custom specs. Camber plates, also.

Street driving - between 10-15 clicks - it's firm yet comfortable and compliant. Ohlins tech support is excellent. Track performance is very good but still experimenting with set-up. Car rotates better under trail braking and is much more stable braking from high speed (its quelled some of the rear dance that the F-8X cars exhibit).

I'd go with the Ohlins set up unless they have some good data for you on a modified spring rate.

[mhanism]

Appreciate the feedback!

So after a few calls and emails with Ohlin North America, I decided to order their recommendations for street - at 70nm (400lb) front and 199nm (1,087lbs) rear. Throughout our discussions, they made it clear, the rear rates were not too high and was well matched with the damper for street and track performance.

They further noted, ride quality had less to do with spring rates and much more to do about Ride Frequency. FWIW - he said if it were his own car, he'd go 70/190 as a primarily street set up.

Unfortunately I still have a ways to go until my car is delivered, so won't be able to try out until this summer.

[cmktony]

Where can purchase the spring only? Any online shop can ship to Hong Kong?

[PLF69]

I am mostly dead set on 70/140 because of the awful roads we have here.

Anyone running these rates ?


EDIT: I just ordered the kit with new matching vorshlag camber plates, I'll report what I think of the softer rates.

[chief1richard]

Originally Posted by gsrbri

I went with their recommended set-up and spring rates for the F87. I drive my M2 as a third vehicle on weekends and to the track. It's a great suspension.

I had it corner balanced and aligned to my custom specs. Camber plates, also.

Street driving - between 10-15 clicks - it's firm yet comfortable and compliant. Ohlins tech support is excellent. Track performance is very good but still experimenting with set-up. Car rotates better under trail braking and is much more stable braking from high speed (its quelled some of the rear dance that the F-8X cars exhibit).

I'd go with the Ohlins set up unless they have some good data for you on a modified spring rate.

Will be installing Ohlins 80 F, 160 R soon and was wondering where you got your M2 aligned after install. I am on the South Shore.

[gsrbri]

I had the car's ride height, corner balancing, and alignment done by KMC Motors in Lawrence. Was worth the trip

[SEAT TIME RULES]

https://kmcauto.com/

Very track oriented Garage.

Helped me out at Thompson several years ago when I had issues with my EVO.

[ANILE8]

Originally Posted by HP Autosport

Even a car like the M2 it shouldn't be hard to take off 2 seconds or more with a properly installed and setup high quality coilover kit. Some drivers are much faster on softer rates and don't see any gains with higher rates.

Agreed. However, both of the main two coilovers mentioned in this thread are relatively low-end 1-Way adjustable only kits that are mass-produced.

It all depends on what the potential buyers expectations are I guess.

[HP Autosport]

Originally Posted by ANILE8

Agreed. However, both of the main two coilovers mentioned in this thread are relatively low-end 1-Way adjustable only kits that are mass-produced.

It all depends on what the potential buyers expectations are I guess.

I agree. Although some people are basing entry level as BC or XYZ ~$1000 coilovers and KW V3 and Ohlins R&T as high-end. Then that makes MCS/JRZ/Moton as custom(And they are).

[Franzino]

Originally Posted by gsrbri

I went with their recommended set-up and spring rates for the F87. I drive my M2 as a third vehicle on weekends and to the track. It's a great suspension.

I had it corner balanced and aligned to my custom specs. Camber plates, also.

Street driving - between 10-15 clicks - it's firm yet comfortable and compliant. Ohlins tech support is excellent. Track performance is very good but still experimenting with set-up. Car rotates better under trail braking and is much more stable braking from high speed (its quelled some of the rear dance that the F-8X cars exhibit).

I'd go with the Ohlins set up unless they have some good data for you on a modified spring rate.

I have the Öhlins R&T on my daily N55 M2 that I also use occasionally on Nürburgring (+/- 8 times a year). My local Öhlins specialist and also Öhlins themselves suggested the standard 90/190N/mm springs for my purpose. I really love the set up on street and track. I drive with rather soft settings for personal preference (18-19 on Nürburgring / 21 on street). For street <-> track purpose and easy adjusting of the damping the Öhlins R&T is really an awesome suspension. The standard M2 suspension was also nice but after + 90.000km it lost most of it working power (felt soft and to bouncy). The Öhlins in combination with a slightly different alignment made the car more fun, more accurate (steering) and overal more predictable/controlled when going through fast corners.

The track was cold and my tyres are Michelin 4s “street” tyres:

[Blue Apex]

Originally Posted by alscks0414

Installed my R&T along with GC camber plates (2.6 camber at the front and 1.6 ish stock at the rear) about 3 weeks ago with corner balancing close to 50/50 diagonal. (I believe it was 49.87)
Spring rates are Ohlins' recommended rates 90 N/mm front and 190 N/mm rear.

Never had it softened but only driven with 5 clicks front and the rear.
Man.. it rides hard but it will get you great cornering so it gives you the confidence. I personally don't mind riding hard on street (it is my DD as well), but it is more important for me to have agile handling and cornering even just rolling daily bases.
I thought I was going to put aftermarket sway bar + toe links, but I don't think I need them. However, things could be different after my track experience.
I haven't tracked mine and will be tracking on the last week of May. I will post another review after one full day 6 hours sessions (Will need to mount new FMIC).

Have a friend around my area who had same spring rates but 20 clicks all around. He said that the ride is "noticeably" better on bumpy uneven payment that we have in Toronto, Canada. Controls better above potholes and softer than stock but still have good cornering and better launch grip as rear will have more traction due to softer damper setting.

Had Contis at my delivery so changed tires to MPS4S (255F/ 275R) and certainly they all deliver great traction and just enough for M2 to deliver its power to the ground.

Contis + stock suspension gave 1+2 gear (6MT) wheel spin until 2nd gear goes above 5k rpm (traction light on all the way). Current setup basically reduces such wheel spin and experiencing also blink of spin at 1st gear until about 4k rpm. No spin in gear transition from 1 to 2 and steadily delivers the toque to the ground at 2nd gear regardless what rpm you are hitting.

Yes, roll was there with stock setup at some aggressive cornering and I can simply tell the roll isn't much issue anymore. I did some maneuver test at empty parking lot (like you see one of the cone test you may have seen from different youtube video clips) and YES it does deliver you the great balance.
One thing I am not sure about is long high speed cornering at track sessions and autocross. Rolling at high G numbers with high speed won't be just simply solved by having harder damper setting. This is only my question that I currently have. Solution? As I mentioned, I will be (if I still think it is needed) putting anti-roll sway bar and toe links.
You can set more neutral cornering if you don't like over-steer that nature of our F87 has, you can lose your damper clicks at the rear (or tighten the front clicks) or setting your sway bar setting differently. But this depends on your driving behavior. Finding the perfect setting for me will be another fun journey.

Hope this helps!

Hey fellow Torontonian where did u order your Ohlins from and who did the install for you. Thanks in advance

[alscks0414]

Originally Posted by Blue Apex

Hey fellow Torontonian where did u order your Ohlins from and who did the install for you. Thanks in advance

I got mine from Alpha Motorsports. They have very competitive price. PM me and i can give you the owner contact info.

Installation was done by Burning Rubber Tire and Speed at Oakville. They also did alignment plus corner balance as well. Top notch shop.

[vrooooom]

Is the expense worth it? 😬

[Yiruna]

Originally Posted by vrooooom

Is the expense worth it? 😬

Worth what, exactly?