[epilamun]

Hey all, installed H&R sport kit (spring and Dampers) on my N53 330i.

I've done 300 miles on the front struts and more on the rear shocks. Something is clearly wrong with the fronts, they're riding way too high (2 fingers can slot into the gap)). Any suggestions on what could be wrong? I haven't been able to use a torque wrench on the compression nut yet, but surely this isn't enough of a reason for it to be riding this high? I loaded the suspension when installing by using my jack, could it be I didn't load it enough?



Also the rear almost looks too low? I cant fit my fingers into the wheel arch at all. What could cause this, faulty shocks/springs or is it right?

[whyzee125]

The front looks perfect to me, any lower and you'll have zero travel. Did you use new strut mounts up front? If so, that will give you a little height over the old worn ones as they compress quite a bit with age.

The rear is way too low. Did you get coupe specific springs? As I recall, H&R has quite a few part numbers for each combo of car, ie n54 coupe, etc. Did you use the spring pads in the rear?

[epilamun]

Originally Posted by whyzee125

The front looks perfect to me, any lower and you'll have zero travel. Did you use new strut mounts up front? If so, that will give you a little height over the old worn ones as they compress quite a bit with age.

The rear is way too low. Did you get coupe specific springs? As I recall, H&R has quite a few part numbers for each combo of car, ie n54 coupe, etc. Did you use the spring pads in the rear?

Hi thanks for the reply, I used Lemforder top mounts up front. I used the Suspension repair kit from BMW for the rear and used existing mounts for the spring as they looked to be in good condition. The part number for the entire kit was 31054-2 which was rated for the e92 coupe.

[whyzee125]

Originally Posted by epilamun

Hi thanks for the reply, I used Lemforder top mounts up front. I used the Suspension repair kit from BMW for the rear and used existing mounts for the spring as they looked to be in good condition. The part number for the entire kit was 31054-2 which was rated for the e92 coupe.

Interesting. I think the rear just happens to be a bit low, maybe saggy springs from H&R. I'd use some e30 spring pads and raise it up a tad, front looks good to me and it will slowly lower a bit as the new mounts wear in.

[neilvan]

Originally Posted by epilamun

Hi thanks for the reply, I used Lemforder top mounts up front. I used the Suspension repair kit from BMW for the rear and used existing mounts for the spring as they looked to be in good condition. The part number for the entire kit was 31054-2 which was rated for the e92 coupe.

https://www.ecstuning.com/b-h-and-r-...p-kit/31054-2/

31054-2 looks like its for the 335 Sedan vehicles (N54/N55); Explains why it sits wrong


Edit: Looks like H&R doesnt make a sport cup kit for the coupes/convertibles

http://www.hrsprings.com/application...s/4/Suspension

[epilamun]

Originally Posted by neilvan

https://www.ecstuning.com/b-h-and-r-...p-kit/31054-2/

31054-2 looks like its for the 335 Sedan vehicles (N54/N55); Explains why it sits wrong


Edit: Looks like H&R doesnt make a sport cup kit for the coupes/convertibles

http://www.hrsprings.com/application...s/4/Suspension

I checked their catalogue (a pdf) and the 31054-2 was compatible with the e92 330i, I made sure before because I wasn't sure whether it'd be 31054-2 or 31054-4.

[epilamun]

Originally Posted by whyzee125

Interesting. I think the rear just happens to be a bit low, maybe saggy springs from H&R. I'd use some e30 spring pads and raise it up a tad, front looks good to me and it will slowly lower a bit as the new mounts wear in.

Should I get them replaced from who I bought them from?

[Tambohamilton]

I'd certainly at least contact the vendor to see what their take is. Something isn't right, that's for certain!

If the front is still too high after the rear is sorted, you could swap in Xd top mounts to lower it by ~10mm without reducing the available travel.

[nicked8]

When I was 16 I took a stab at installing a set of lowering springs on my E46. First time doing suspension work and I flipped the springs - put the front on the rears and the rears on the front. Looked just like your car when I set it back on the ground before I realized what I did.

Needless to say there was a lot of cursing at myself that day! I’m guessing you’re smarter than my 16 year old self but everyone can make stupid mistakes

[Tambohamilton]

You'd have to be really persistent and probably quite creative to manage that on an e9x

[epilamun]

Originally Posted by nicked8

When I was 16 I took a stab at installing a set of lowering springs on my E46. First time doing suspension work and I flipped the springs - put the front on the rears and the rears on the front. Looked just like your car when I set it back on the ground before I realized what I did.

Needless to say there was a lot of cursing at myself that day! I’m guessing you’re smarter than my 16 year old self but everyone can make stupid mistakes

😂😂😂😂😂 That's hilarious mate. No I definitely did not do that! I don't think I even installed the rear springs upside down.

What I'm thinking is I may not have torqued the rear control arm properly and I still am yet to torque the inner thrust arm bolt at ride height so that could cause the front to jump higher I think. So I'll stick the car on a DIY ramp (blocks of wood) and torque it tomorrow.

[nicked8]

Originally Posted by epilamun

😂😂😂😂😂 That's hilarious mate. No I definitely did not do that! I don't think I even installed the rear springs upside down.

What I'm thinking is I may not have torqued the rear control arm properly and I still am yet to torque the inner thrust arm bolt at ride height so that could cause the front to jump higher I think. So I'll stick the car on a DIY ramp (blocks of wood) and torque it tomorrow.

When I did my E90 I had it up on jack stands and I lifted each corner with a floor jack under the ball joint until it was just started to lift and torqued the bushings then. Can also check to make sure the front shocks are fully seated down in the knuckles. Good luck!

[epilamun]

I tried torquing to ride height, it made a small difference but the front is still too high! Any further advice? I have the small little spacers on the strut mounts, they're probably like 2mm thick, I can't think of anything else that could change things.

[gvisockas]

Does this allow for regular driving? What are your impressions on this suspension kit otherwise?

[crashoverride]

it looks like the front is correct and rear is too low. Please keep us updated