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F80/F82/F83 M3 and M4 (2015 - Current)
F80 BMW M3 sedan, F82 BMW M4 coupe and F83 M4 convertible forum. This 5th generation M3 and all new M4 features a 3.0 liter twin turbo engine (engine code S55) 425hp and 406lbs of torque! Heavy use of light weight materials makes this generation lighter and faster then the outgoing E9x M3.

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  #1  
Old 01-28-2017, 10:56 PM
DarthVader17 DarthVader17 is offline
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Mein Auto: '17 M3 F80
H&R Springs (Sport or SuperSports)

Greetings all! I have dilemma so I recently took delivery of my MY17 M3 ZCP love the car but that wheel gap at front is killing me. I'm honestly fine how the rear sits stock not many consist pictures of lowered ZCP. Those running these springs would you guys recommend Sport or SuperS? I'm trying to achieve that "Even" look I'm willing to leave the rears untouch if it comes down to it. Mostly looking for input with those with the ZCP since the wheels are 20's. Thanks in advance

Last edited by DarthVader17; 01-29-2017 at 02:39 AM.
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  #2  
Old 01-30-2017, 11:01 PM
mike@x-ph.com mike@x-ph.com is offline
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Sport ... Super sport is too aggressive in my opinion

https://www.x-ph.com/h-r-bmw-2015-m3...-m-suspension/
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  #3  
Old 02-01-2017, 07:49 PM
mistertmac mistertmac is offline
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Mein Auto: 2017 X6 on order, M4 next
KW HAS kit, adjustable and you maintain your adaptive suspension


MY17 F82/M4 ZCP
MY17 F16/X6 MSport
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  #4  
Old 02-01-2017, 09:05 PM
DarthVader17 DarthVader17 is offline
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KW Has is an option but I'm looking to just eliminate the gap which I think a set of springs can fulfill the bill. Thanks for the replies
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  #5  
Old 04-29-2017, 05:46 PM
F10-N52 F10-N52 is offline
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Lowering springs on factory dampers = big no no. Either you do it right the first time with coilovers or don't do it at all
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  #6  
Old 04-30-2017, 01:52 PM
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Technic Technic is offline
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In my MY2017 ZCP, I kept the rear OEM springs and installed Eibach Pro Kit F8x V2 spring in the front only to take care of the front gap. Lowering at the front was less than an inch (.8-.9").

OEM rear springs were kept for two reasons: OEM rear gap was perfect to me and the ZCP rear OEM springs rate is much higher (by about 50lbs/in) than the Eibach Pro Kit F8x V2 rear spring rate. Did not want to change how the ZCP suspension handles especially under hard acceleration weight transfer. The resulting front to rear gap after front install is pretty much the same now.

Right after install I noticed that the front of the car felt loose and thought that I made a mistake by doing this front-only springs install. It felt like the shocks were not matched to the new springs -although the reduction of spring rate between the OEM ZCP front springs and Eibach V2 front springs is about 15lbs/in.

By coincidence, after about 800 miles of the springs install my dealer updated my ZCP firmware to 61.1 for causes unrelated to the suspension. Firmware updates also include a reset of the EDC/ICM modules, which forces a new calibration adaptation period of the EDC shocks. This EDC adaptation fixed the front looseness and now ride and handling is no different from OEM while the front gap is reduced to match the rear gap.

I would suggest that any spring install to EDC shocks is joined by an ICM reset at the dealer for the EDC shocks to adapt to the new springs regardless of the brand of springs. Also, look up the aftermarket spring rates to match as close as possible the ZCP spring rates in particular.



Quote:
Originally Posted by DarthVader17 View Post
Greetings all! I have dilemma so I recently took delivery of my MY17 M3 ZCP love the car but that wheel gap at front is killing me. I'm honestly fine how the rear sits stock not many consist pictures of lowered ZCP. Those running these springs would you guys recommend Sport or SuperS? I'm trying to achieve that "Even" look I'm willing to leave the rears untouch if it comes down to it. Mostly looking for input with those with the ZCP since the wheels are 20's. Thanks in advance
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Last edited by Technic; 04-30-2017 at 04:12 PM.
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  #7  
Old 04-30-2017, 02:08 PM
F10-N52 F10-N52 is offline
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Wouldn't it handle funny if the rear springs don't match? So you say that the factory struts aren't well matched to your springs?
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  #8  
Old 05-01-2017, 10:27 AM
mike@x-ph.com mike@x-ph.com is offline
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Quote:
Originally Posted by F10-N52 View Post
Lowering springs on factory dampers = big no no. Either you do it right the first time with coilovers or don't do it at all
In theory you are correct, spring on factory dampers will put extra stress. That being said most have had springs for years without any problems.
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  #9  
Old 05-04-2017, 04:06 PM
shrev shrev is offline
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Mein Auto: F80 M3, E90 335xi, E53 X5
H&R Super Sports all day long. The 1.6 drop in the front and 1.3 in the rear seems perfect IMO. The adaptive still works fine as sifting through the different modes, you can still feel the difference. One thing to definitely consider are spacers after the lowering. After lowering the car, I noticed the wheels looked too deep inwards. I'm contemplating putting 12mm in the front and 15mm rears to "correct" the look.
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  #10  
Old 05-04-2017, 04:23 PM
F10-N52 F10-N52 is offline
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That's because of your offset. The more aggressive your offset (20-30) the more the wheel will stick out. Generally you want to avoid spacers, but you should be fine.

I advise to always stay away from lowering springs. You need the matching sport damper. H&R is also too stiff for the street.
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  #11  
Old 05-04-2017, 04:31 PM
shrev shrev is offline
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Mein Auto: F80 M3, E90 335xi, E53 X5
daily driver 70 miles a day..I'm telling you Comfort mode works lol...

I do agree on both the need of matching damper and to avoid spacers, but after only doing the springs I'm changing my mind. I've had one f80 that I sold last year and put 33k miles on it with the super sport springs.

My current one I bought a new set of the same springs and put 9300 miles on it thus far, and the ride isn't as stiff as most people claim. The ride is a matter of opinion?
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  #12  
Old 05-04-2017, 07:35 PM
F10-N52 F10-N52 is offline
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An f80 has a much different damper then your average non M 3 series. If you have the M sport suspension from the factory (I think this applies to the RWD examples only) then lowering springs will work on these aggressive dampers. Your average 3 series? Not a good idea. You're compressing the non performance damper making it work harder then it should. Fairly soon, your struts will be on borrowed time. The ride was not harsh because it was an f80.

For a normal 335 328 id suggest bilstein sport struts with ACS/Eibach springs. The strut itself is quite stiff but the spring allows some compliance perfect for a performance daily driver. H&R is not as well matched to the bilstein performance strut is stay away unless you track.

Eibach especially ACS springs is where it's at.
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