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      11-11-2018, 10:47 PM   #1
Shadowfax028
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M235i Rear Sway Bar??

I'm looking for a larger rear sway bar for the M235i.
The largest I have found is the H&R 20mm. Does anyone know of a larger then 20mm that is available?

I have the Mperformance LSD in my car. Looking for something comparable to the rear bar on the M2's
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      11-14-2018, 12:00 PM   #2
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Anybody?
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      01-14-2019, 09:59 PM   #3
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Quote:
Originally Posted by Shadowfax028 View Post
I'm looking for a larger rear sway bar for the M235i.
The largest I have found is the H&R 20mm. Does anyone know of a larger then 20mm that is available?

I have the Mperformance LSD in my car. Looking for something comparable to the rear bar on the M2's
Which bars did you end up going with? I got the AFE bars (32mm/29mm F/R), they are the largest I've seen available. They will be installed along with some other suspension bits in a few weeks.

https://afepower.com/afe-power-440-5...l-sway-bar-set
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      01-14-2019, 10:35 PM   #4
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Anybody?
21mm solid, with two holes of adjustment — http://www.tw-kcdesign.com/products_detail_107.htm?pg=
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      01-16-2019, 06:57 AM   #5
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Quote:
Originally Posted by ghost.M View Post
Which bars did you end up going with? I got the AFE bars (32mm/29mm F/R), they are the largest I've seen available. They will be installed along with some other suspension bits in a few weeks.

https://afepower.com/afe-power-440-5...l-sway-bar-set
29mm for the rear, wow......
That's BIG!!
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      01-21-2019, 07:46 AM   #6
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Quote:
Originally Posted by ghost.M View Post
Which bars did you end up going with? I got the AFE bars (32mm/29mm F/R), they are the largest I've seen available. They will be installed along with some other suspension bits in a few weeks.

https://afepower.com/afe-power-440-5...l-sway-bar-set
29mm for the rear, wow......
That's BIG!!
Yeah Afe makes the same size bars F/R for F2X/F3X and F8X. The set was $360 on Amazon in December so figured I'd give them a shot lol.
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      01-21-2019, 08:32 AM   #7
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dinan is 19mm, H&R 20mm... not always down to the size of the bar though, the stiffness varies manufacturer to manufacturer
https://mp-uk.com/bmw/2-series/f22-f...ANTI+ROLL+BARS
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      01-21-2019, 07:40 PM   #8
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Yeah Afe makes the same size bars F/R for F2X/F3X and F8X. The set was $360 on Amazon in December so figured I'd give them a shot lol.
Beautifull, 29mm for the rear. That's really big. Do you plan on putting stiffer springs on the rear of your car too?
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      01-21-2019, 10:14 PM   #9
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Quote:
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Quote:
Originally Posted by ghost.M View Post
Yeah Afe makes the same size bars F/R for F2X/F3X and F8X. The set was $360 on Amazon in December so figured I'd give them a shot lol.
Beautifull, 29mm for the rear. That's really big. Do you plan on putting stiffer springs on the rear of your car too?
Thank you. The springs in that picture are the Afe springs for the F80/F82 and they're going on the car in like 3 weeks when I get the bars put on. I've seen the M4 guys use 435i springs and I know the f22/f32 springs are interchangeable so it follows logically that F80/F82 Springs would work on our cars as well. I haven't seen anyone else doing it but the springs were 50% off in December so again it was too good of deal to pass up. If I knew about the 335i Swift Spec R's I would have gotten those without question haha! I considered the Swift's for the F82 for a while but thought they might be just beyond the oem damping capability with 5/13 F/R spring rates. I think they would do really well paired with the B8s or Koni Yellows for our cars, or the B6s for the F80/82/87 so if I don't like the set up with Afe bars and springs I might try that next. I'm trying to get max performance without going to full coil-overs as this is my DD but plan to run a couple HPDEs this season.
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      01-21-2019, 11:37 PM   #10
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Quote:
Originally Posted by ghost.M View Post
Thank you. The springs in that picture are the Afe springs for the F80/F82 and they're going on the car in like 3 weeks when I get the bars put on. I've seen the M4 guys use 435i springs and I know the f22/f32 springs are interchangeable so it follows logically that F80/F82 Springs would work on our cars as well. I haven't seen anyone else doing it but the springs were 50% off in December so again it was too good of deal to pass up. If I knew about the 335i Swift Spec R's I would have gotten those without question haha! I considered the Swift's for the F82 for a while but thought they might be just beyond the oem damping capability with 5/13 F/R spring rates. I think they would do really well paired with the B8s or Koni Yellows for our cars, or the B6s for the F80/82/87 so if I don't like the set up with Afe bars and springs I might try that next. I'm trying to get max performance without going to full coil-overs as this is my DD but plan to run a couple HPDEs this season.

Please keep me posted. I would like to hear more from you.
What are the spring rates of the springs in the photo ?
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      01-22-2019, 07:26 AM   #11
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Quote:
Originally Posted by Shadowfax028 View Post
Quote:
Originally Posted by ghost.M View Post
Thank you. The springs in that picture are the Afe springs for the F80/F82 and they're going on the car in like 3 weeks when I get the bars put on. I've seen the M4 guys use 435i springs and I know the f22/f32 springs are interchangeable so it follows logically that F80/F82 Springs would work on our cars as well. I haven't seen anyone else doing it but the springs were 50% off in December so again it was too good of deal to pass up. If I knew about the 335i Swift Spec R's I would have gotten those without question haha! I considered the Swift's for the F82 for a while but thought they might be just beyond the oem damping capability with 5/13 F/R spring rates. I think they would do really well paired with the B8s or Koni Yellows for our cars, or the B6s for the F80/82/87 so if I don't like the set up with Afe bars and springs I might try that next. I'm trying to get max performance without going to full coil-overs as this is my DD but plan to run a couple HPDEs this season.

Please keep me posted. I would like to hear more from you.
What are the spring rates of the springs in the photo ?
I've called Afe three times asking for rates and they haven't gotten back to me yet. I'll definitely let you know what I find out if I hear anything from them.

***Spoke to Afe again today but still don't have rates for these springs. Their HAS set is 190-240lb progressive up front and 700lb linear rear though and the rep I spoke to said the regular lowering springs are stiffer than F80 stock but not the same rates as the HAS..***
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      01-23-2019, 07:14 AM   #12
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I think the AFE bar is hollow? If it is then it's probably no stiffer then the H&R sway bars.

Problem is, a sway bar that thick starts running into clearance issues. Not only that but why anyone thinks they need front OR rear sways that are this stiff is beyond me. The car is going to feel awful with soft springs and it's going to be picking up wheels. It might look cool in autocross pictures but your car is not going to be any faster.

Last edited by bbnks2; 01-23-2019 at 10:21 AM..
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      01-25-2019, 02:07 PM   #13
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Quote:
Originally Posted by bbnks2 View Post
I think the AFE bar is hollow? If it is then it's probably no stiffer then the H&R sway bars.

Problem is, a sway bar that thick starts running into clearance issues. Not only that but why anyone thinks they need front OR rear sways that are this stiff is beyond me. The car is going to feel awful with soft springs and it's going to be picking up wheels. It might look cool in autocross pictures but your car is not going to be any faster.
I'll confirm fitment once everything is mounted in a few weeks.
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      02-17-2019, 09:41 AM   #14
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Quote:
Originally Posted by Shadowfax028 View Post
Quote:
Originally Posted by ghost.M View Post
Thank you. The springs in that picture are the Afe springs for the F80/F82 and they're going on the car in like 3 weeks when I get the bars put on. I've seen the M4 guys use 435i springs and I know the f22/f32 springs are interchangeable so it follows logically that F80/F82 Springs would work on our cars as well. I haven't seen anyone else doing it but the springs were 50% off in December so again it was too good of deal to pass up. If I knew about the 335i Swift Spec R's I would have gotten those without question haha! I considered the Swift's for the F82 for a while but thought they might be just beyond the oem damping capability with 5/13 F/R spring rates. I think they would do really well paired with the B8s or Koni Yellows for our cars, or the B6s for the F80/82/87 so if I don't like the set up with Afe bars and springs I might try that next. I'm trying to get max performance without going to full coil-overs as this is my DD but plan to run a couple HPDEs this season.

Please keep me posted. I would like to hear more from you.
What are the spring rates of the springs in the photo ?
So I stopped by the shop yesterday and my car is almost done. Initial visual impression is that using F80/82 lowering springs results in far too much rake; front tires are tucked slightly and rears have stock fender gap. After I get the car back I'll drive it for a few weeks to see if the rear settles anymore and also confirm on ride quality and handling. I'll also get some pictures of it with this set up. An interesting takeaway is that stock F80/82 front springs might be a good oem+ type upgrade to help stiffen up the front end and lower the car slightly. The good news is that the sway bars fit without issue. I will make a separate thread for my build as well but just wanted to close the loop here.
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      03-03-2019, 03:22 PM   #15
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So I've had had the car back after all of the suspension work and wow what a difference! The Afe sways and springs keep the car so much more stable and planted on all surfaces. Even on washboard type pavement the car feels very stable. It is not bouncy, even in comfort mode, and in Sport/Sport + it's very firm but never jarring or uncomfortable. It feels better the faster you go!

I can definitely see how a true LSD would improve things, DSC engages much more frequently if I'm not using the e-lsd. It's also much easier to notice the e-lsd working when it is engaged.

No fitment issues with the AFE sways so I can recommend them to anyone looking yo reduce body roll without compromising ride quality. The AFE F80 springs fit as well, but seem to be too short for the front. The car is pretty raked - front tires tucked slightly with about an inch wheel gap in the rear... With the Dinan bumpstops it isn't an issue though; I've only bottomed out the front on large bumps going fast on surface streets. The cost of making custom lower spring pads to increase travel quickly rose beyond the point of it adding value, so I'll probably keep these springs until the dampers blow or until I get coilovers. I am really happy with the way he car rides, and if you are ok with the raked look then the AFE Springs for the F80/F82 might be an option for you too. I'll try and get some better pictures when the weather here clears up and I can wash my car again.
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