Suspension Settings

jeff@autocouture · 08-01-2017, 09:25 AM

Hey guys,

I'm curious to see where people are running their settings, especially what cars being tracked are set to.

Thanks in advance!

schnell325 · 08-01-2017, 11:48 AM

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Track height on the coilovers. And this marking on the Ground Control front camber plates. No alignment specs as of yet. VCP I believe ran a tad more negative camber than I did on Sunday.

From rough estimates, mine was ~ one degree more negative than a stock GTS.

BarryB · 08-01-2017, 12:09 PM

Bmw recommended height and rebound /dampening settings for the track i.e. Low and hard....( lowest height setting and can't remember how many clicks for the others - dealer did it for me)

jeff@autocouture · 08-01-2017, 12:29 PM

Quote:

Originally Posted by schnell325

Attachment 1667487

Track height on the coilovers. And this marking on the Ground Control front camber plates. No alignment specs as of yet. VCP I believe ran a tad more negative camber than I did on Sunday.

From rough estimates, mine was ~ one degree more negative than a stock
.

im not worried about the the alignment setting as much...

Quote:

Originally Posted by BarryB

Bmw recommended height and rebound /dampening settings for the track i.e. Low and hard....( lowest height setting and can't remember how many clicks for the others - dealer did it for me)

i changed it myself and for some reason the car feels worse then it did in the street setting, unless i messed it up i will check again

thats why im asking what everyone else is running, leaving for track setting or has anyone been playing with it themselves

schnell325 · 08-01-2017, 12:32 PM

Ah. Got yah.

Kept all other settings factory ✔️✔️

jeff@autocouture · 08-01-2017, 12:33 PM

Quote:

Originally Posted by schnell325

Ah. Got yah.

Kept all other settings factory ✔️✔️

interesting, did the car get stiffer?

schnell325 · 08-01-2017, 12:43 PM

Quote:

Originally Posted by Alex@AUTOcouture

interesting, did the car get stiffer?

From street to track, it did feel stiffer by my accounts

VCP · 08-01-2017, 12:45 PM

I did stay at stock Camber for initial run at www.area27.ca. Wanted to see how that was on the track. It was very close I feel. I don't think I would add more than .5 for that track.

Quote:

Originally Posted by schnell325

Attachment 1667487

Track height on the coilovers. And this marking on the Ground Control front camber plates. No alignment specs as of yet. VCP I believe ran a tad more negative camber than I did on Sunday.

From rough estimates, mine was ~ one degree more negative than a stock GTS.

Barry, here is where I ended up after playing with it for 2 sessions. So a little softer on high speed comp. Ran a 2:24:33 and the track record is 2:09:77 set by Viper ACR and pro driver. It was 40C that day and the GTS kept its cool very well. Anyway, I have it really dialed for this track and to get the max out of it race tyres will be the key. It is a 3.1 mile long course and very technical.

Quote:

Originally Posted by BarryB

Bmw recommended height and rebound /dampening settings for the track i.e. Low and hard....( lowest height setting and can't remember how many clicks for the others - dealer did it for me)

VCP · 08-01-2017, 12:59 PM

Technically the manual has 2 "track" settings.

Quote:

Originally Posted by Alex@AUTOcouture

thats why im asking what everyone else is running, leaving for track setting or has anyone been playing with it themselves

jeff@autocouture · 08-01-2017, 01:10 PM

Quote:

Originally Posted by VCP

Technically the manual has 2 "track" settings.

Correct, ill keep playing with these thanks everyone so far!

VCP · 08-01-2017, 01:17 PM

I have given my thoughts on this before. Everyone may have a different setting at end of day. Driving style and track condition are the obstacles to overcome here. This is the beauty of having the infinite adjustability we all have. We need to share our findings but will most likely all end up a bit different. Hopefully we all end up with one similarity, FAST LAPS!

Quote:

Originally Posted by Alex@AUTOcouture

Correct, ill keep playing with these thanks everyone so far!

jeff@autocouture · 08-01-2017, 01:27 PM

Quote:

Originally Posted by VCP

I have given my thoughts on this before. Everyone may have a different setting at end of day. Driving style and track condition are the obstacles to overcome here. This is the beauty of having the infinite adjustability we all have. We need to share our findings but will most likely all end up a bit different. Hopefully we all end up with one similarity, FAST LAPS!

Absolutely, thats why im asking

VCP · 08-01-2017, 01:34 PM

Quote:

Originally Posted by Alex@AUTOcouture

Absolutely, thats why im asking

TT1351 · 08-01-2017, 02:51 PM

Any info on if lowering the car affects toe? I suspect it might, but I don't know for certain.

johnr265 · 09-04-2017, 08:56 PM

Quote:

Originally Posted by TT1351

Any info on if lowering the car affects toe? I suspect it might, but I don't know for certain.

Looking back at my alignment sheet, for front toe

Stock Toe L/R (in degrees)
.06/.22

Adjusted toe, stock height with driver
.08/.09

Lowered with driver, no adjustments made:
.06/.04

so toe in front does change slightly. In the rear, toe did not change appreciably when going from stock to track setting.

Car goes in this week for Ground Control camber plates and I plan to realign accordingly. If anyone has any specific updates as to starting points, I would really appreciate it.

schnell325 · 09-05-2017, 09:21 AM

Quote:

Originally Posted by johnr265

Looking back at my alignment sheet, for front toe

Stock Toe L/R (in degrees)
.06/.22

Adjusted toe, stock height with driver
.08/.09

Lowered with driver, no adjustments made:
.06/.04

so toe in front does change slightly. In the rear, toe did not change appreciably when going from stock to track setting.

Car goes in this week for Ground Control camber plates and I plan to realign accordingly. If anyone has any specific updates as to starting points, I would really appreciate it.

I'm on holidays right now, will pm you back when I can ✔️✔️

BMW9 · 04-04-2018, 12:36 AM

Anyone has lap times on the same track with street vs track (either of the two settings for track) settings?

Drew@Sonic MS · 04-13-2018, 07:59 PM

I'd highly suggest changing out the stock springs on the KWs to some different rate Swifts. We've done that to 3 GTS' so far and all 3 owners were much happier after. Plus, you can lower the car a bit more without having to permanently modify the KWs.

delfunk · 04-13-2018, 10:07 PM

I have mine on the factory race setting and it is great for just cruising around.

schnell325 · 04-13-2018, 11:23 PM

Quote:

Originally Posted by Drew@Sonic MS

I'd highly suggest changing out the stock springs on the KWs to some different rate Swifts. We've done that to 3 GTS' so far and all 3 owners were much happier after. Plus, you can lower the car a bit more without having to permanently modify the KWs.

What rates were used?

delfunk · 04-14-2018, 10:14 AM

I'm not sure the shop did it for me. He said he matched the factory race settings.

ClubsportJunkie · 05-13-2021, 06:26 PM

Please excuse me from reviving this thread, but I'd be curious to learn about everyone's compression/rebound setups for street/track use.

Unfortunately I haven't had enough track time with the car to try different compression/rebound setting. For street/weekend driving though, I'd be curious if anyone has actually softened up the suspension. It's funny some moments, I'm blow away by the stock setup (usually when the pavement is smooth), but in other instances, I feel like the mid corner bumps the car skips a little too much for my liking. This is my first rodeo with 3 way adjustable suspension, and I feel like I could use a proper lesson on rebound and compression if anyone knows some good resources...At the same time, if anyone would be willing to share their experiences tuning their suspension I thought here could be a good place.

Right now I just have it set to the "stock" settings:
Rebound clicks: 6 (F), 7 (R)
Low speed compression clicks: 3 (F), 2 (R)
High speed compression clicks: 6 (F), 7 (R)

As a side note, I just added SPL parts to the car, and I've really enjoyed the new alignment:
-2.2 (F)/ -1.7 (R) Camber
0 (F)/ .29 (R) degrees Toe
8.4 degrees Caster

6/14/2021 Update: I found that softening the high speed compression and rebound by one click all around made the car much more livable for the harsh roads around Austin. Keeping the low speed right where it was at for Nuremberg setting perfectly complimented what I liked about the car in my initial post. I initially tried 2 clicks and it was laughable at how much more the car felt like it was on its toes. Reminded me of some of my old cars weirdly enough (e46 & e30 non-m's)...below is my new setup.

Rebound clicks (16):
7 (F), 8 (R)
Low speed compression clicks (6):
3 (F), 2(R)
High speed compression clicks (14):
7 (F), 8 (R)

Here's a great video too on chassis tuning for anyone that's interested:

08-01-2017, 09:25 AM	#1
jeff@autocouture BimmerPost Supporting Vendor 966 Rep 13,780 Posts Drives: 2002 E53 X5 4.6is Join Date: Jan 2010 Location: New Jersey iTrader: (0)	Suspension Settings Hey guys, I'm curious to see where people are running their settings, especially what cars being tracked are set to. Thanks in advance!
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08-01-2017, 11:48 AM	#2
schnell325 Bored at work.... 890 Rep 5,390 Posts Drives: 2016 F82 M4 GTS//2022 M235iGC Join Date: Aug 2007 Location: Comox Valley iTrader: (8)	Track height on the coilovers. And this marking on the Ground Control front camber plates. No alignment specs as of yet. VCP I believe ran a tad more negative camber than I did on Sunday. From rough estimates, mine was ~ one degree more negative than a stock GTS. __________________ Grey Matter:2008 E92 M3:608/425. SG/PS SOLD! Dark Matter:2015 F80 M3:495/505. SOLD! Anti Matter :2016 F82 M4 GTS What next?!? A 2022 M235i GC- I must be getting old
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08-01-2017, 12:09 PM	#3
BarryB Lieutenant Colonel 867 Rep 1,758 Posts Drives: 30Jahre M5 plus a few more M's Join Date: May 2012 Location: Palo Alto CA iTrader: (0) Garage List 2022 BMW M5 CS [0.00] 2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00]	Bmw recommended height and rebound /dampening settings for the track i.e. Low and hard....( lowest height setting and can't remember how many clicks for the others - dealer did it for me) __________________ Current non-BMW's 20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust)
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08-01-2017, 12:32 PM	#5
schnell325 Bored at work.... 890 Rep 5,390 Posts Drives: 2016 F82 M4 GTS//2022 M235iGC Join Date: Aug 2007 Location: Comox Valley iTrader: (8)	Ah. Got yah. Kept all other settings factory ✔️✔️ __________________ Grey Matter:2008 E92 M3:608/425. SG/PS SOLD! Dark Matter:2015 F80 M3:495/505. SOLD! Anti Matter :2016 F82 M4 GTS What next?!? A 2022 M235i GC- I must be getting old
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08-01-2017, 02:51 PM	#14
TT1351 Captain 508 Rep 929 Posts Drives: 135, GTS, E30 M3+ Join Date: Dec 2008 Location: Massachusetts iTrader: (2)	Any info on if lowering the car affects toe? I suspect it might, but I don't know for certain.
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04-04-2018, 12:36 AM	#17
BMW9 Second Lieutenant 53 Rep 234 Posts Drives: BMW M4 / Nissan GTR Join Date: Nov 2010 Location: Los Angeles iTrader: (0)	Anyone has lap times on the same track with street vs track (either of the two settings for track) settings?
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04-13-2018, 07:59 PM	#18
Drew@Sonic MS Captain 334 Rep 624 Posts Drives: F80 M3 Join Date: Apr 2012 Location: San Jose iTrader: (1)	I'd highly suggest changing out the stock springs on the KWs to some different rate Swifts. We've done that to 3 GTS' so far and all 3 owners were much happier after. Plus, you can lower the car a bit more without having to permanently modify the KWs.
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04-13-2018, 10:07 PM	#19
delfunk Private First Class 32 Rep 110 Posts Drives: 2016 M4 GTS Join Date: Apr 2018 Location: Sacramento, CA iTrader: (0)	I have mine on the factory race setting and it is great for just cruising around.
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04-14-2018, 10:14 AM	#21
delfunk Private First Class 32 Rep 110 Posts Drives: 2016 M4 GTS Join Date: Apr 2018 Location: Sacramento, CA iTrader: (0)	I'm not sure the shop did it for me. He said he matched the factory race settings.
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05-13-2021, 06:26 PM	#22
ClubsportJunkie Private First Class 312 Rep 190 Posts Drives: M4 GTS Join Date: Feb 2010 Location: Fairfield County iTrader: (0)	Please excuse me from reviving this thread, but I'd be curious to learn about everyone's compression/rebound setups for street/track use. Unfortunately I haven't had enough track time with the car to try different compression/rebound setting. For street/weekend driving though, I'd be curious if anyone has actually softened up the suspension. It's funny some moments, I'm blow away by the stock setup (usually when the pavement is smooth), but in other instances, I feel like the mid corner bumps the car skips a little too much for my liking. This is my first rodeo with 3 way adjustable suspension, and I feel like I could use a proper lesson on rebound and compression if anyone knows some good resources...At the same time, if anyone would be willing to share their experiences tuning their suspension I thought here could be a good place. Right now I just have it set to the "stock" settings: Rebound clicks: 6 (F), 7 (R) Low speed compression clicks: 3 (F), 2 (R) High speed compression clicks: 6 (F), 7 (R) As a side note, I just added SPL parts to the car, and I've really enjoyed the new alignment: -2.2 (F)/ -1.7 (R) Camber 0 (F)/ .29 (R) degrees Toe 8.4 degrees Caster 6/14/2021 Update: I found that softening the high speed compression and rebound by one click all around made the car much more livable for the harsh roads around Austin. Keeping the low speed right where it was at for Nuremberg setting perfectly complimented what I liked about the car in my initial post. I initially tried 2 clicks and it was laughable at how much more the car felt like it was on its toes. Reminded me of some of my old cars weirdly enough (e46 & e30 non-m's)...below is my new setup. Rebound clicks (16): 7 (F), 8 (R) Low speed compression clicks (6): 3 (F), 2(R) High speed compression clicks (14): 7 (F), 8 (R) Here's a great video too on chassis tuning for anyone that's interested:
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