[328iX]

Originally Posted by zcspec

I can't believe the amount of research you put into this project and am search many others will thank YOU for the dedication. I'm sorry the first go wasn't to your liking, but who in their right mind would accept the reverse rake look?
With the current setup, it's perfect and I wouldn't change a thing. The springs and your choice in upgraded shocks is spot on. On to the next project!

All came together with your help Peter thank you so much! Hopefully more to come down the road!

[PKR]

I’ll echo your thanks to 328dX for his persistence. Well done!

For myself, the spring info will be useful first. My f31 is a long way from needing struts - and my wallet ain’t exactly ready either. Not sure how springs with stock struts will work, but I’ll share whenever it happens.

[CTMike]

Originally Posted by 328dX

All came together with your help Peter thank you so much! Hopefully more to come down the road!

How’s the ride now that you’ve had it a couple of weeks?

[328iX]

Originally Posted by CTMike

How’s the ride now that you’ve had it a couple of weeks?

It's great. No complaints.

There's so much travel I don't think I'm even using half of it. far from bottoming out the Konis are at a good rate.

[Onizukachan]

Originally Posted by FaRKle!

I'd recommend the E10-20-031-15-22 kit over the E10-20-031-14-22. The E10-20-031-14-22 front spring is just about a half inch shorter (10-13mm). I didn't like how often I scraped with the E10-20-031-15-22 kit. Brand new dampers might give him a bit more ride height than broken in ones (Bilsteins definitely require some break in).

Sorry if I’m a bit confused FaRKle!? Did you mean how much you scraped with the -14 kit? Since you mentioned it was 1/2 lower in the front?
I would def want the lower front one of the two kits as I do carry strollers, etc in the back frequently. And also because I don’t want to have to run the M Sport front spoiler like everyone else.

[FaRKle!]

Originally Posted by Onizukachan

Sorry if I’m a bit confused FaRKle!? Did you mean how much you scraped with the -14 kit? Since you mentioned it was 1/2 lower in the front?
I would def want the lower front one of the two kits as I do carry strollers, etc in the back frequently. And also because I don’t want to have to run the M Sport front spoiler like everyone else.

I meant the -15 kit as I wrote. Even with the -15 kit I scraped the bottom of my M-sport bumper often. Having the -14 kit would be even worse.

Of course, now I'm all about going the "make your own spring kit" route from various OE springs, but I realize that's too much effort for most people who just want a quick OTS option.

[Onizukachan]

I’m very interested in what you discover, Farkle!

[FaRKle!]

Originally Posted by Onizukachan

I’m very interested in what you discover, Farkle!

My preference is a front ride height in the 14-14.5" range (hub to fender). and 13.75-14" rear.

Since most cheaper coilovers don't let you pick spring rates, I like getting there using used OE springs from other models like F80/82/87s, or M-Perf kits for the front, and in the rear by piecing together a height adjustable setup that uses cheap conventional coilover springs and picking my spring rate. That can also be achieved with cheap used OE springs, but they may be a bit difficult to find (like from an F83), or not really any cheaper than the HAS setup (like with M-Perf springs).

For dampers, B6/B8 work decently in the front with F8x and higher spring rates, but the rear B6/8 are overdamped with almost everything. I haven't looked into how a B6/8 front and Koni Red/Yellow rear might do.

[Lec]

Ok, Stupid question. What shocks or coilovers, bump stops, rocker bars.... does BMW have on their Track Handling Pack F31's? Why wouldn't BMW just sell them OEM. I'm sure it would be bookoo bucks, but you'd think BMW would come up with some sort of BMW performance set?

[slicer]

Originally Posted by Lec

Ok, Stupid question. What shocks or coilovers, bump stops, rocker bars.... does BMW have on their Track Handling Pack F31's? Why wouldn't BMW just sell them OEM. I'm sure it would be bookoo bucks, but you'd think BMW would come up with some sort of BMW performance set?

Track handling pack f31 is not lowered. It's 4x4 ride height. No reason to sell the kit.

I installed HR springs on my OE shocks (adaptive track handling pack) with shorter bump stops. The ride quality is great. Not bouncy in any way.

I also have an e92 M3 that I have tested a bunch of different suspensions on. Currently running Ohlins TTX. I know when a suspension is "bouncy", mismatched dampening with spring rate, etc. I have certainly experienced it. I was pleasantly surprised with the results from this simple HR spring. Full disclosure - the F31 is my daily, I don't track or hit the canyons hard with that car. If so, I would upgrade to a true coilover.

[FaRKle!]

Originally Posted by Lec

Ok, Stupid question. What shocks or coilovers, bump stops, rocker bars.... does BMW have on their Track Handling Pack F31's? Why wouldn't BMW just sell them OEM. I'm sure it would be bookoo bucks, but you'd think BMW would come up with some sort of BMW performance set?

US THP F31s came with the EDC/Adaptive-M suspension. No change to the sway bars.

The closest way to replicate the M-perf suspension for the RWD F31 on a US 328/330i or 328d is to get the M-perf springs for the 340i/330d RWD F31, rear dampers from that kit, and Bilstein B8 front struts.

[3.0hyeah]

328dx, this thread has been a huge help. I'm doing the same to my wagon now, springs on order, but I'm trying to figure out which PN to use for the special actives. The online catalog has PNs for touring, m-technik, and x-drive. I saw in one of your pics the PN 1378 which is what Koni specs for x-drive models. If you are using a lowering spring, wouldn't you want to go with the "m-technik" pn?

Would m-technik be for "real" lowering springs? You mentioned koni doesn't consider the pro-kit to be a lowering spring as its mild.

Thanks for the archive of info!

[FaRKle!]

Originally Posted by 3.0hyeah

328dx, this thread has been a huge help. I'm doing the same to my wagon now, springs on order, but I'm trying to figure out which PN to use for the special actives. The online catalog has PNs for touring, m-technik, and x-drive. I saw in one of your pics the PN 1378 which is what Koni specs for x-drive models. If you are using a lowering spring, wouldn't you want to go with the "m-technik" pn?

Would m-technik be for "real" lowering springs? You mentioned koni doesn't consider the pro-kit to be a lowering spring as its mild.

Thanks for the archive of info!

Use the xDrive PNs. The other ones are for RWD vehicles.

[3.0hyeah]

Originally Posted by FaRKle!

Use the xDrive PNs. The other ones are for RWD vehicles.

How are the rwd different? Valved more aggressively? I thought maybe the x-drive pn is for stock "comfort" springs, and rwd/m-technik pn was for lowering springs like the eibach prokit, but i've also seen references as to how koni considers the prokit to be stockish and not sport springs that would require a true sport shock.

Are you still on adaptive?

[FaRKle!]

Originally Posted by 3.0hyeah

How are the rwd different? Valved more aggressively? I thought maybe the x-drive pn is for stock "comfort" springs, and rwd/m-technik pn was for lowering springs like the eibach prokit, but i've also seen references as to how koni considers the prokit to be stockish and not sport springs that would require a true sport shock.

Are you still on adaptive?

See my thread plotting Koni damper data. RWD front struts won't physically work on xDrive vehicles, which have shorter struts to clear the drive axle going into the knuckle.

As for damping characteristics, xDrive and RWD have the same damping curves, but RWD M-Sport rear shocks have more rebound, which is unnecessary IMO.

I took off my EDC dampers a year ago when I went to Fat Cat Motorsports tuned passive dampers.

[3.0hyeah]

Excellent info, thanks a ton man!

[52172]

I'd add Fortune Auto coil overs to your list for 1375 their very nice.

[FaRKle!]

Originally Posted by 52172

I'd add Fortune Auto coil overs to your list for 1375 their very nice.

Won't work. Not xdrive compatible.

[Heethster]

I have started another thread. I appreciate many of you are enthusiasts with budget. but I'm just an enthusiast. Please see my "Xdrive - obvious question" thread. cheers

[328iX]

Originally Posted by FaRKle!

Won't work. Not xdrive compatible.

I purchased a new vehicle in February, everything is the same except i got the gas version (328i)

It's been over a year since this thread was compiled and wondering has anything changed? I do see H&R now has a coilover kit

I'm once again wanting a kit that can drop me a good height (coilovers for sure this time) but don't want it to be "slammed" at max height in the rear.

Seeing if you have the same expertise with the gas models, thank you

[3.0hyeah]

Hey guys, I'm getting quotes on install, quick question.. Do the shock/struts come with new mounts for the front and rear? Is this something I should consider getting new? OEM?

Another place quoted me "replace front and rear and install new collar bolts and control arm locking nuts". What uh, does that mean exactly? Is this legitimate?

Also, holy moly, some of the shops in Northern NJ have quoted me up to 1600 for install, alignment and balance. Luckily I found a quality place that will do it for a fair price.

[SeattleLSB]

Originally Posted by 3.0hyeah

Hey guys, I'm getting quotes on install, quick question.. Do the shock/struts come with new mounts for the front and rear? Is this something I should consider getting new? OEM?

Another place quoted me "replace front and rear and install new collar bolts and control arm locking nuts". What uh, does that mean exactly? Is this legitimate?

Also, holy moly, some of the shops in Northern NJ have quoted me up to 1600 for install, alignment and balance. Luckily I found a quality place that will do it for a fair price.

Call up Bimmerclinic they are great.