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      06-24-2020, 06:36 PM   #1
ghatiey1990
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Swift springs on f30 w/stock EDC

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After a lot of research I have decided to drop my F30 335i on some Swift R springs paired with my stock EDC suspension and I couldn't be happier! These are very popular among the F80 owners so I decided to pull the trigger and do it. I also didn't see to many post of pics for F30s dropped on them so I've added some before and after pics! As for the ride quality.... It's how these cars should have came from the factory! Body roll has decreased significantly and taking corners and turns is super tight! It's just as comfortable as my stock springs if not better. It just feels more refined and the EDC handles it very well! Once it settles I can update with exact drop specs but the back dropped about a quarter inch and the front should be an inch. Compared to my buddies car with the h&r sports I would choose Swift all day.
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      06-24-2020, 08:59 PM   #2
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Looks nice. I like the drop. Thanks for sharing
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      06-25-2020, 12:59 AM   #3
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Curious how these would work out on an xDrive. My calculations suggest that it would lower an xDrive about 10mm more in front than a RWD, with roughly the same drop in back. I wonder if we could throw a 10mm isolator between the spring and bearing up front to even it out.. I loved the Swift/B8 combo I had on my Z.
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      06-25-2020, 02:19 AM   #4
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Quote:
Originally Posted by ghatiey1990 View Post
After a lot of research I have decided to drop my F30 335i on some Swift R springs paired with my stock EDC suspension and I couldn't be happier! These are very popular among the F80 owners so I decided to pull the trigger and do it. I also didn't see to many post of pics for F30s dropped on them so I've added some before and after pics! As for the ride quality.... It's how these cars should have came from the factory! Body roll has decreased significantly and taking corners and turns is super tight! It's just as comfortable as my stock springs if not better. It just feels more refined and the EDC handles it very well! Once it settles I can update with exact drop specs but the back dropped about a quarter inch and the front should be an inch. Compared to my buddies car with the h&r sports I would choose Swift all day.
I was actually about to start a thread about these springs, I've been searching for reviews on the Swift R springs on a 340i but I'm assuming suspension shouldn't be much different as I also have EDC on my F30. Friend talked me into these springs as they tend to be the go to when getting coilovers. Looking to buy a set and put them on a few days before my wheels get here. Just to be clear, your 335i is RWD and not AWD? Are you running apex wheels and what are the specs?

Last edited by Aldor27; 06-25-2020 at 02:20 AM.. Reason: Adding question about wheels.
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      06-25-2020, 02:33 AM   #5
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I love how they look and their price, but as always I get scared about the springs wearing out the struts faster...
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      06-25-2020, 12:16 PM   #6
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looking good! i am lowered on swift springs...awesome product! cleans up alot of the accel/decel & transitional slop. love it!!
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      06-25-2020, 12:34 PM   #7
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Quote:
Originally Posted by Aldor27 View Post
I was actually about to start a thread about these springs, I've been searching for reviews on the Swift R springs on a 340i but I'm assuming suspension shouldn't be much different as I also have EDC on my F30. Friend talked me into these springs as they tend to be the go to when getting coilovers. Looking to buy a set and put them on a few days before my wheels get here. Just to be clear, your 335i is RWD and not AWD? Are you running apex wheels and what are the specs?
Same reason I started this thread since I couldn't find one. But yes I have a rwd and these are apex ec-7.
Front: 18x9 ET 42 w/5mm spacers
Rear: 18x9.5 ET 43 w/10mm spacers
I don't have any rubbing.
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      06-25-2020, 12:39 PM   #8
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Quote:
Originally Posted by kilogram View Post
Curious how these would work out on an xDrive. My calculations suggest that it would lower an xDrive about 10mm more in front than a RWD, with roughly the same drop in back. I wonder if we could throw a 10mm isolator between the spring and bearing up front to even it out.. I loved the Swift/B8 combo I had on my Z.
On an xDrive you want more drop in front to get rid of some of the reverse rake that BMW builds into the xDrive suspension. That's one reason why Eibach springs are popular.
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      06-25-2020, 01:32 PM   #9
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Quote:
Originally Posted by kilogram View Post
Curious how these would work out on an xDrive. My calculations suggest that it would lower an xDrive about 10mm more in front than a RWD, with roughly the same drop in back. I wonder if we could throw a 10mm isolator between the spring and bearing up front to even it out.. I loved the Swift/B8 combo I had on my Z.
Idk if you are 328 or 335 but Iím planning on trying the f80 swifts with B8s. Spring rate is higher and the 328xi auto looks close to f80 weight. I have the b8s waiting, I just need the springs and camber plates now.

Front drop should be lower than the 335 swifts since the f80 is lower on OE
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      06-25-2020, 03:47 PM   #10
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Quote:
Originally Posted by ghatiey1990 View Post
Quote:
Originally Posted by Aldor27 View Post
I was actually about to start a thread about these springs, I've been searching for reviews on the Swift R springs on a 340i but I'm assuming suspension shouldn't be much different as I also have EDC on my F30. Friend talked me into these springs as they tend to be the go to when getting coilovers. Looking to buy a set and put them on a few days before my wheels get here. Just to be clear, your 335i is RWD and not AWD? Are you running apex wheels and what are the specs?
Same reason I started this thread since I couldn't find one. But yes I have a rwd and these are apex ec-7.
Front: 18x9 ET 42 w/5mm spacers
Rear: 18x9.5 ET 43 w/10mm spacers
I don't have any rubbing.
Waiting for my apex ar8s in 18x9 et30 to get here. Looking to get a 255/40/18 tire on them.
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      06-26-2020, 02:31 PM   #11
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Quote:
Originally Posted by brigade24 View Post
looking good! i am lowered on swift springs...awesome product! cleans up alot of the accel/decel & transitional slop. love it!!
You're xDrive, right? Do you have any pics? What dampers are you using?


Quote:
Originally Posted by johnung
On an xDrive you want more drop in front to get rid of some of the reverse rake that BMW builds into the xDrive suspension. That's one reason why Eibach springs are popular.
I should clarify. Those calcs assumed the RWD drop (which would get rid of the reverse rake on its own) PLUS an additional 10mm due to the extra weight over the front axle. That's more than I'd like, which is why I'd like to add a spacer to the spring mount.

Last edited by kilogram; 11-10-2020 at 03:13 PM..
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      06-27-2020, 10:28 AM   #12
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Quote:
Originally Posted by kilogram View Post
You're xDrive, right? Do you have any pics? What dampers are you using?
I am xdrive and i do have pics that I can post. BC Racing dampers are in there now...been running this setup for a couple of years now.
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      06-27-2020, 12:57 PM   #13
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Quote:
Originally Posted by brigade24 View Post
I am xdrive and i do have pics that I can post. BC Racing dampers are in there now...been running this setup for a couple of years now.
Sorry, I'm confused. Are you using the Swift Spec-R (p/n 4X915R) lowering springs with BC dampers? Or OTS Swift coilover springs on the BCs? I'm hoping for info on the 4X915R springs/xDrive combo, though I'll never turn down a pic of someone's mods
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      06-27-2020, 01:04 PM   #14
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Quote:
Originally Posted by blumagic View Post
Idk if you are 328 or 335 but I’m planning on trying the f80 swifts with B8s. Spring rate is higher and the 328xi auto looks close to f80 weight. I have the b8s waiting, I just need the springs and camber plates now.

Front drop should be lower than the 335 swifts since the f80 is lower on OE
I'm 340 xDrive. I think the F80 thing depends on rates. F80 is lower OE, but also has higher spring rates I think. I don't know how the weight compares between it and the 335, but i guess if it drops the F80 x.xmm and the weights are comparable, the 335 should land in about the same spot. I'm looking for something that's not too low, since my ConOps mean this is still a family car that needs to clear the occasional CO snowstorm, but still gets rid of the crown vic feel. It was hard going from a Swiftstein'd 350z to an xDrive, handling wise haha.
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      06-27-2020, 04:09 PM   #15
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Quote:
Originally Posted by kilogram View Post
Sorry, I'm confused. Are you using the Swift Spec-R (p/n 4X915R) lowering springs with BC dampers? Or OTS Swift coilover springs on the BCs? I'm hoping for info on the 4X915R springs/xDrive combo, though I'll never turn down a pic of someone's mods
I am using the standard 8" 65 ID mm swift springs (Z65-203) in all corners with my BC setup. The spring seats/collars need to be modified because the BC springs have an ID of 62mm. It's less expensive to modify the spring seats/collars than to pay the premium for the OTS BC Swift springs. And if you decide to change springs later on...there are lots of options in the 65mm ID size from both hyperco and swift. This was important to me for suspension tuning purposes.

its raining at the moment here but when it stops, I will snaps some pics and post them here to give you a better idea...

Last edited by brigade24; 06-27-2020 at 04:17 PM.. Reason: claritin clarity
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      06-28-2020, 11:54 PM   #16
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Quote:
Originally Posted by ghatiey1990 View Post
Same reason I started this thread since I couldn't find one. But yes I have a rwd and these are apex ec-7.
Front: 18x9 ET 42 w/5mm spacers
Rear: 18x9.5 ET 43 w/10mm spacers
I don't have any rubbing.
Did you have to get new bump stops or modify the oem ones?
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      06-30-2020, 06:47 PM   #17
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Quote:
Originally Posted by Aldor27 View Post
Did you have to get new bump stops or modify the oem ones?
I didn't get new ones or modify the oem ones I just used them stock
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      06-30-2020, 09:45 PM   #18
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Here are some pics of my setup...street and pic lapping. Excuse the dirt, it was raining at my last race and the paddock was muddy so...fun.

the lapping setup is 275 wide all round. 3mm spacers in the back and 20mm in the front. I will explain the latter in the next post.

there are so many performance mods that would give the car more of competitive edge but for some bizarre reason I want some bright orange or yellow calipers! The performance benefit is almost nil in autox...and yet I'm obsessed with doing this mod...I understand what suffering in silence means.
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Last edited by brigade24; 06-30-2020 at 10:09 PM.. Reason: brain phart
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      06-30-2020, 10:03 PM   #19
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Ok, the 275s will fit all round but you will need to camber in, you will need a spacer (10mm minimum) for the front and you MUST NOT run an 8"inch spring in front, run a 7" spring and you'll be golden...pic #2 is with a 15mm spacer and pic#3 is with a 20mm spacer. I still need to camber in so the tires will not stick out...i hope.

the last two pics are my front alignment markings and rear spring setup. That alignment marking needs to be rotated 540 degrees so that the yellow marking faces the rear of the car. doing that will induce a toe out condition of about 1/16th (total), maybe slightly less...this must be done on both sides before every race.
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      06-30-2020, 11:24 PM   #20
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Quote:
Originally Posted by brigade24 View Post
Ok, the 275s will fit all round but you will need to camber in, you will need a spacer (10mm minimum) for the front and you MUST NOT run an 8"inch spring in front, run a 7" spring and you'll be golden...pic #2 is with a 15mm spacer and pic#3 is with a 20mm spacer. I still need to camber in so the tires will not stick out...i hope.

the last two pics are my front alignment markings and rear spring setup. That alignment marking needs to be rotated 540 degrees so that the yellow marking faces the rear of the car. doing that will induce a toe out condition of about 1/16th (total), maybe slightly less...this must be done on both sides before every race.
If it didn't poke out up front, Id give this setup a try.
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      07-01-2020, 08:48 AM   #21
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Quote:
Originally Posted by Aldor27 View Post
If it didn't poke out up front, Id give this setup a try.
for a street setup this is aggressive. I am going to camber in today and see how it looks...
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      07-01-2020, 09:05 AM   #22
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Quote:
Originally Posted by brigade24 View Post
Ok, the 275s will fit all round but you will need to camber in, you will need a spacer (10mm minimum) for the front and you MUST NOT run an 8"inch spring in front, run a 7" spring and you'll be golden...pic #2 is with a 15mm spacer and pic#3 is with a 20mm spacer. I still need to camber in so the tires will not stick out...i hope.

the last two pics are my front alignment markings and rear spring setup. That alignment marking needs to be rotated 540 degrees so that the yellow marking faces the rear of the car. doing that will induce a toe out condition of about 1/16th (total), maybe slightly less...this must be done on both sides before every race.

it should work, i've been wanting to copy this 275/40/17 setup...

Quote:
Originally Posted by Forgiven View Post
My f30 has camber plates on front plus the 15mm spacers.
Wheels: four 17x9.5 35et
Tires: Nitto nt01 275/40/17





Had these wheels for two years now, balances well, zero issues.
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