Geez I just bought a set of bc and now I'm thinking about going to stock with a set of springs after this read. I have koni with h and r spring but my ride kills my car. +1 on the info
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e46 M3 suspension setup, or how to not downgrade your car with suspension mods
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H&R springs kinda suck. The rears are fine, but the fronts are awful. Pair some eibachs or dinans or vogtlands with koni or bilsteins.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
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Originally posted by Drewrivera View PostGeez I just bought a set of bc and now I'm thinking about going to stock with a set of springs after this read. I have koni with h and r spring but my ride kills my car. +1 on the info
2005 IR/IR M3 Coupe
2012 LMB/Black 128i
2008 Black/Black M5 Sedan
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Bump for a terrific thread! Currently weighing my options for Koni sports and Dinan springs - if anyone has had experience with this setup I'd appreciate your input! How is the ride for day to day driveability? Anything else I should know before pulling the trigger? Feel free to PM me to not take up space in this thread. Thank you Obioban for the great post!
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Originally posted by Obioban View Post
That looks pretty bang on perfect to me. I'd say start your front sway off on medium, and tweak it to taste from there. Medium should put you at 74%, which is a pretty optimal starting point for "medium". I wouldn't worry at all about a 0.4% FRC variance left/right-- unavoidable.
During the first drive, the car felt REALLY bouncy. Seemed to be coming strictly from the rear. I have TCK SA shocks and they are set to 3 clicks from full soft front and rear. Spring rates are 350# FL, 336# FR, 700# RL, 657# RR.
Do I need to adjust the shocks to be more firm? Not sure why it's so bouncy. Any advice is appreciated!2005 BMW M3 ZCP Black/Black - HTE Tuning | Kassel CSL DME | 288/280 Schrick Cams+DLC Followers | Lang Head | Dinan TBs | Bosch 550cc | Radium Fuel System | Karbonious CSL Airbox+OE Snorkel | SS V1 Stepped+Catted Sec 1+Resonated Twin Pipe+Race | 3.91, 3 stage clutch | FCM 400/600 | Vorshlag Camber Plates, RSM | Rogue ASP | AKG FCABs, SFBs | TMS Front Sway, Camber Arms, Monoball RTABs, Pullies | Mason Race Strut + X-Brace | AS 30% SSK | SPAL | Redish Plates | Turbo Toys V2 Hub | WPC Rod Bearings
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You should have the fronts on full soft and rears somewhere in the middle of their range, probably. Full soft up front for sure.
maybe more in the rear— 700 is the stiffest spring tck says your can use with their shocks, so it might need to be on the stiffer side to control it.
2005 IR/IR M3 Coupe
2012 LMB/Black 128i
2008 Black/Black M5 Sedan
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Originally posted by Obioban View PostYou should have the fronts on full soft and rears somewhere in the middle of their range, probably. Full soft up front for sure.
maybe more in the rear— 700 is the stiffest spring tck says your can use with their shocks, so it might need to be on the stiffer side to control it.'03.5 M3 SMG Coupe - Jet Black / Black
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Originally posted by r4dr View Post
Just purely out of curiosity, why full soft up front? Because of the low spring rate?
And too much is a bad situation— the car jacks down (over repeated bumps the spring gets more compressed as the shock is too stiff to let it expand in time to hit the next bump), so you end up driving on the bump stops.
2005 IR/IR M3 Coupe
2012 LMB/Black 128i
2008 Black/Black M5 Sedan
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Originally posted by Obioban View PostYou should have the fronts on full soft and rears somewhere in the middle of their range, probably. Full soft up front for sure.
maybe more in the rear— 700 is the stiffest spring tck says your can use with their shocks, so it might need to be on the stiffer side to control it.
Does this mean I've reached to limitation of my shock? Exchanged a few emails with TC and he said that the SA shock doesnt have enough compression damping control to "be really good", but the DA does
Any recommendations for replacement rear shocks to support 700# springs? Should I just get TCK DA rears and keep the SA fronts? TIA for the help.2005 BMW M3 ZCP Black/Black - HTE Tuning | Kassel CSL DME | 288/280 Schrick Cams+DLC Followers | Lang Head | Dinan TBs | Bosch 550cc | Radium Fuel System | Karbonious CSL Airbox+OE Snorkel | SS V1 Stepped+Catted Sec 1+Resonated Twin Pipe+Race | 3.91, 3 stage clutch | FCM 400/600 | Vorshlag Camber Plates, RSM | Rogue ASP | AKG FCABs, SFBs | TMS Front Sway, Camber Arms, Monoball RTABs, Pullies | Mason Race Strut + X-Brace | AS 30% SSK | SPAL | Redish Plates | Turbo Toys V2 Hub | WPC Rod Bearings
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Originally posted by T.J. View PostTry the rear on full soft and see what happens2005 BMW M3 ZCP Black/Black - HTE Tuning | Kassel CSL DME | 288/280 Schrick Cams+DLC Followers | Lang Head | Dinan TBs | Bosch 550cc | Radium Fuel System | Karbonious CSL Airbox+OE Snorkel | SS V1 Stepped+Catted Sec 1+Resonated Twin Pipe+Race | 3.91, 3 stage clutch | FCM 400/600 | Vorshlag Camber Plates, RSM | Rogue ASP | AKG FCABs, SFBs | TMS Front Sway, Camber Arms, Monoball RTABs, Pullies | Mason Race Strut + X-Brace | AS 30% SSK | SPAL | Redish Plates | Turbo Toys V2 Hub | WPC Rod Bearings
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Originally posted by duracellttu View Post
I can try that but doesn’t make much sense. How would that help? (Honest question.)Last edited by T.J.; 08-26-2020, 09:23 PM.
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Originally posted by duracellttu View Post
Any recommendations for replacement rear shocks to support 700# springs? Should I just get TCK DA rears and keep the SA fronts? TIA for the help.
The GC DA rear (Koni 8042-1134) can support up to ~1100#.
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