Originally posted by WestBankM4
View Post
Announcement
Collapse
No announcement yet.
e46 M3 suspension setup, or how to not downgrade your car with suspension mods
Collapse
X
-
DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint
-
mrgizmo04 lvm3sm46 What front spring rates and lengths did y’all end up with for the R&T kit, and what ride height was achieved?
I’m ordering a TrackDay kit from 3DM, and Barry recommended 7” 336 lb/in Swift springs when I mentioned that I want the front rate to be around 350 with stock 630 rear. However, it looks like I won’t be able to get the car high enough (13.5”) if I go with that spring? FWIW, I’ll be trying the kit with Ohlins/Vorshlag camber plates.
If the car is too low, I could add a helper spring to get me to my desired ride height, and Barry suggested this as well. Hyperco sells 2.5” helpers with a solid height of 0.44” and 0.70”, and Ohlins (Swift?) sells a 65mm helper with a solid height of 0.63”. Plus the thickness of the adapter/spring guide. Even if the lower spring perch isn’t near the top, I don’t think I’ll have clearance issues with 18x9.5 ET35 ARC-8s, since I run a 10mm spacer to clear the 996 calipers?
- Likes 1
Comment
-
Originally posted by r4dr View Post
The KW Motorsports and KW consumer (V1, V2) products seem to be different. KW Motorsports stuff in Europe is the real deal, and a lot of people from Manthey to BMW customer racing run their dampers. Emotion Engineering is the only one I'm aware of in the US that works with KW Motorsports products.
- Likes 2
Comment
-
Originally posted by cornerbalanced View Post
In the states you can order KW Motorsports through KW themselves. You simply have to fill out an order form, denoting monotube/twintube, inverse strut, spring rates, external reservoirs, reservoir line sizing…virtually every aspect of the damper is customizable. Hope to see more people take advantage of this program! Pricing is on par with JRZ/MCS.'03.5 M3 SMG Coupe - Jet Black / Black
- Likes 1
Comment
-
Originally posted by r4dr View Post
That’s good to know because I had no idea. Then the next step is finding shops that support it… because I definitely don’t know the ins and outs of fiddling with knobs.
- Likes 2
Comment
-
Originally posted by Nate047 View Post
Thing is there's no real harm in just tinkering. You can always set them back to full soft and start again if you end up hating life. Shops will each have their own preferred brands, and won't always be objective about why ($$$) so just keep that in mind. The basics of damper tuning are the same on any brand.
Comment
-
Originally posted by r4dr View Post
The KW Motorsports and KW consumer (V1, V2) products seem to be different. KW Motorsports stuff in Europe is the real deal, and a lot of people from Manthey to BMW customer racing run their dampers. Emotion Engineering is the only one I'm aware of in the US that works with KW Motorsports products.
I never felt the V3's were stiff, always thought they were extremely compliant even on Houston streets.
To SQ13's chagrin, I may just run them with some linear springs and see how they do 😘
Sent from my iPhone using Tapatalk
Comment
-
Originally posted by fattycharged View Post
my consumer V3's just went in for a rebuild last week and I just got the call today that they don't want to rebuild them as they're slammed with race builds for the start of season, instead they're sending a new dampers from Germany.
I never felt the V3's were stiff, always thought they were extremely compliant even on Houston streets.
To SQ13's chagrin, I may just run them with some linear springs and see how they do 😘
Sent from my iPhone using Tapatalk
Comment
-
Originally posted by fattycharged View Post
my consumer V3's just went in for a rebuild last week and I just got the call today that they don't want to rebuild them as they're slammed with race builds for the start of season, instead they're sending a new dampers from Germany.
I never felt the V3's were stiff, always thought they were extremely compliant even on Houston streets.
To SQ13's chagrin, I may just run them with some linear springs and see how they do 😘
Sent from my iPhone using Tapatalk
I don't remember the spring rates that the people were using, but I'm sure you can find it via Google. It was Harold @ HPA who was talking about this.'03.5 M3 SMG Coupe - Jet Black / Black
Comment
-
Hey guys,
I have a car that I got pre-modded that I'd like to dial in more to my liking.
As is the handling is a bit interesting to say the least. The rear end has almost incredible traction and tractability out of a turn however the front end gives up much too early. It's not balanced. The car is also much too low.
What I want/like: a strong front end and oversteer tendencies if I overcook it. Not sure if that qualifies as neutral-ish.
Hardware:
JRZ RS One
Swift springs 100F (+ helper) / 120R (+ tender rate unknown)
H&R sway bars (F soft, R stiff)
GC adjustable end links
Rates translate to ~558lb and ~670lb
Would dropping the front spring to 6kg (~335lb) be a good move?
Last edited by kaiv; 04-26-2023, 11:56 AM.IG: @limited.slip
Imola Red E46 330i ZHP Sedan S54 6MT
Alpine White E90 M3 6MT
Alpine White 1 Series M
A̶l̶p̶i̶n̶e̶ W̶h̶i̶t̶e̶ E̶4̶6̶ 3̶2̶5̶i̶ T̶o̶u̶r̶i̶n̶g̶ S̶5̶4̶ 6̶M̶T̶
T̶i̶t̶a̶n̶i̶u̶m̶ S̶i̶l̶v̶e̶r̶ E̶3̶9̶ 5̶4̶0̶i̶ M̶-̶S̶p̶o̶r̶t̶ T̶o̶u̶r̶i̶n̶g̶ S̶6̶2̶ 6̶M̶T̶
Comment
-
Originally posted by kaiv View Post
Would dropping the front spring to 6kg (~335lb) be a good move?
Maybe you also have something else going on like worn components, bad alignment or crap tires.2003 Imola Red M3 w/ SMG
Comment
-
kaiv yes dropping the front rate and doing stiff front and soft rear sway bars.Last edited by Cronenberged; 04-26-2023, 01:21 PM.
Comment
-
I'm going to have my JRZ RS Ones sent out for rebuilding as well so this has crossed my mind. Currently 450lb/550lb. per the calculator, i should be going to 300lb front if i leave it at 550 rear. There's a likely need to change spring lengths as well, right?"your BMW has how many miles!?"
2003 M3 coupe - Imolarot/Black 6 M/T - JRZ - Ground Control - Volk Racing - Karbonius - SuperSprint - Recaro - Schroth
2007 GX470
build/journal
ig: @zzyzx85
Comment
Comment