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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Got rid of old, time for new, need advice



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      09-11-2011, 08:15 PM   #1
gizmo335i
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2007 E92 335i  [9.42]
Got rid of old, time for new, need advice

OK...I sold the Coils.

I was going to sell the car but now I'm keeping it. And I'm back on OEM ZSP. I need to get something else ASAP.

I'm done with coils. I just don't even want to deal with it...for a lot of reasons but I won't get into that.

So the wife is about to kill me for all this. So I WAS thinking of just getting springs...but I know that's a bad idea.

Anyway, I was thinking about the cup kit. But is this available for the E92? Aren't the springs/shocks the same for E90/E92?

If that's not possible, obviously, it will be koni yellows/springs.

I had H&R Sport before and it was a nice stance (and I'm still considering them again) but I always wanted the front a little lower. H&R race is a little too low maybe. I noticed there are BG and RD springs as well. Anyone know about these?
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      09-12-2011, 12:06 PM   #2
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don't know if there is a different cup kit for the E92 than the E90 (many times they are the same part number). But if you liked the H&R setup, but only wanted to lower the front a bit, you could install those lowering perches which would drop the front about 0.5"
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      09-12-2011, 08:09 PM   #3
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Hmmm..that's an idea.

Why is it you or tee are the only ones that help in this section now-a-days?
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      09-12-2011, 09:20 PM   #4
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heh, don't know.. other than maybe because I've been there, and over time, have put on 3 different suspension setups on my car looking for something I liked that could give me the handling and ride height I wanted but with the comfort I wanted with a daily driver without breaking the bank.

I try to help where I can, and I've messed around with suspensions quite a bit on my other cars too, but mostly for track situations.. getting something right on the street is harder, imo - especially on a budget.
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      09-12-2011, 10:13 PM   #5
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nice bumper
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      09-13-2011, 10:06 AM   #6
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my rear bumper? it's sold now, lol....getting a new one...

Mike...yeah, this will be my 3rd time around. And I want it to be a nice ride with good handling and a flush drop as well. If I end up with H&R Sport again, I'll be fine with that. I'm wanting a more aggressive stance too...spacers...so that might be the way to go anyway so I don't have to worry about rubbing. I'll get Koni yellows this time instead of FSD's though. Maybe I'll get sway bars, strut tower brace to see if that improves cornering....

And my neighbor and I are going to do the install....so after all this, I may be the one in here trying to help people out as well...

I got a pm from **********s saying they do have the cup kits for E92's....so we'll see. I want to see how that drop is..
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      09-14-2011, 12:12 AM   #7
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Quote:
Originally Posted by gizmo335i View Post
Why is it you or tee are the only ones that help in this section now-a-days?
Maybe the rest of us lack context for your question. Also, it seems like every time I post something, it turns out I'm wrong... getting kind of tired of that.
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      09-14-2011, 05:36 AM   #8
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^^Of course most are going to lack the context. What I'm saying is there used to be a lot more in here with experience with more different setups....but whatever..

Found out there is no cup kit for an E92.

Koni Coils huh....

I'm reading your sig.....why does it say TCKline AND Koni? Is there something I'm missing? I thought one was different than the other.

I know this is the common theme here...BUT I DO NOT want a harsh ride. Yes, I can deal with a little more stiff. I'm thinking of the club sports..but I don't know if they go low enough...
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      09-14-2011, 11:04 AM   #9
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@ gizmo and mike-y: why are you guys done with coilovers?
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      09-14-2011, 11:34 AM   #10
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I don't know for sure yet that I'm done with them....just expensive and a pain when you don't have anyone around to help with the install....places want $500 to do it...I just don't have the time/etc. to mess with them. I hear too much about clunks/rattles as well as getting the height set right all around. And it's a harsh ride. The handling is amazing but you sacrifice comfort.

I think the right spring/shock combo is the way to go if you don't HAVE to have it crazy low or be able to take corners with virtually no body lean...
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      09-14-2011, 11:38 AM   #11
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giz, I believe TCKline uses custom valved koni dampers in some of their setups. Also, HPA has koni yellows with their coilover conversion, so you can pick your spring rate to make sure you get something that is comfy on the street.

The yellows with stock zsp springs ride just a bit firmer than the factory shocks, but they handle bigger bumps better and control body roll a lot better too.

CVC, I wouldn't say I'm "done" with coilovers, just that the particular setup I had was a bit too hardcore for me, since I daily drive the car. There was nothing wrong with those coilovers, and they would have been fantastic for a car that sees a lot of track time. I have another car for the track, so I was looking mostly for something that could retain decent comfort with a bit of lowering.

That setup's max height was supposed to be at about stock, but it was a tad lower, and I scraped the underside of my car going in and out of my garage. That's another reason I went back to zsp.

From what I gather (and after talking with HPA for a bit), a monotube shock isn't going to ride as nice as a twin tube shock. AST, Eibach (and probably the set gizmo had) are monotube. Koni and KW v1/2 are twin tube. Most say the KW 1/2s ride close to stock (same with the ST), so if that's what you are after, choose accordingly.
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      09-14-2011, 11:43 AM   #12
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To clarify, H&R does not make the cup kit for the E92 and it is not listed on their application page either. You can confirm that for yourself with the link as provided. H&R does have the cup kit available only for the E90 335i models.

Paring up an aftermarket spring with more aggressive spring rates will definitely cause your OEM non-sport or sport shocks to wear out over time. This is due to the fact that OEM shocks are simply not meant to handle the more aggressive spring rates. Think of it this way, you're putting a shorter spring with a longer shock body. The shorter springs will cause the shocks to compress to its maximum setting every time you hit a bump due to the longer travel distance. What this can cause is what's known as bump steer and jarring of the ride. This is what for the most part affects ride quality.

Let's break this down in terms of cost. You'll spend about $230-300 bucks for aftermarket springs, another $250-300 for an installation, and another $65-$125 for an alignment. When your OEM sport or non-sport shocks blow your going to have to spend another $700-800 on shocks, another installation fee, and another alignment. If you calculate that all together, you would saved a whole lot more money doing it right the first time around.

If you're worried about ride comfort, KW does have the KW street comfort application for those who want all the benefits of having a coilover system but don't want to have a harsh ride. If that is the case, you may want to check out the KW Street Comfort coilover system. The KW street comfort will give you the ability to adjust the height of your car with rebound damping adjustments as well just like the KW V2 system. The main difference being that the spring rates are linear which makes for a more comfortable ride. The KW street comfort coilovers will allow for you to drop the car 0.6-1.4 inches up front and 0.4-1.2 inches in the rear. Although you may not be able to slam the ride to the ground, you will definitely have a more comfortable ride overall.
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      09-14-2011, 11:52 AM   #13
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Clubsports sound good but I just don't know if that's enough drop for me...I need pics...

I looked at the pics on the site. Some of those look lower than 1.4 in the front. Are you positive every pic is street comfort
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      09-15-2011, 05:12 AM   #14
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I didn't even mean to type clubsport, lol....but yeah I've seen those...
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      09-15-2011, 09:10 AM   #15
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I'm thinking about just doing H&R sport again with OEM shocks....

I can't see how it would be any worse than when I had FSD's paired with them. The FSD's aren't designed to go lower than OEM ZSP height either....

And H&R Sport/Koni FSD was lot better ride than the coils were...
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      09-15-2011, 07:35 PM   #16
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Quote:
Originally Posted by **********s.com View Post
To clarify, H&R does not make the cup kit for the E92 and it is not listed on their application page either. You can confirm that for yourself with the link as provided. H&R does have the cup kit available only for the E90 335i models.

Paring up an aftermarket spring with more aggressive spring rates will definitely cause your OEM non-sport or sport shocks to wear out over time. This is due to the fact that OEM shocks are simply not meant to handle the more aggressive spring rates. Think of it this way, you're putting a shorter spring with a longer shock body. The shorter springs will cause the shocks to compress to its maximum setting every time you hit a bump due to the longer travel distance. What this can cause is what's known as bump steer and jarring of the ride. This is what for the most part affects ride quality.

Let's break this down in terms of cost. You'll spend about $230-300 bucks for aftermarket springs, another $250-300 for an installation, and another $65-$125 for an alignment. When your OEM sport or non-sport shocks blow your going to have to spend another $700-800 on shocks, another installation fee, and another alignment. If you calculate that all together, you would saved a whole lot more money doing it right the first time around.

If you're worried about ride comfort, KW does have the KW street comfort application for those who want all the benefits of having a coilover system but don't want to have a harsh ride. If that is the case, you may want to check out the KW Street Comfort coilover system. The KW street comfort will give you the ability to adjust the height of your car with rebound damping adjustments as well just like the KW V2 system. The main difference being that the spring rates are linear which makes for a more comfortable ride. The KW street comfort coilovers will allow for you to drop the car 0.6-1.4 inches up front and 0.4-1.2 inches in the rear. Although you may not be able to slam the ride to the ground, you will definitely have a more comfortable ride overall.
That sounds like what the OP is looking for: lowered ride, comfort and improved handling over oe. I'd like to hear a long term review from owners. Some owners of KW c/o kits report noise and performance issues after a couple years.
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      09-15-2011, 07:36 PM   #17
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Quote:
Originally Posted by gizmo335i View Post
I'm thinking about just doing H&R sport again with OEM shocks....

I can't see how it would be any worse than when I had FSD's paired with them. The FSD's aren't designed to go lower than OEM ZSP height either....

And H&R Sport/Koni FSD was lot better ride than the coils were...
Reviews of that combination (H&R sport/oe dampers) in this forum are less than favorable.
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      09-16-2011, 05:20 AM   #18
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You know...I read through ALL I could find on it yesterday...and I'd say more favorable. At least almost every person that had the combo said it wasn't bad.

I'll just try it. If it really sux ass...I'll get the Koni's. I'm just going to do the intsall myself now so I'm not throwing away money...
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      09-16-2011, 05:30 AM   #19
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Quote:
Originally Posted by **********s.com View Post

If you're worried about ride comfort, KW does have the KW street comfort application for those who want all the benefits of having a coilover system but don't want to have a harsh ride. If that is the case, you may want to check out the KW Street Comfort coilover system. The KW street comfort will give you the ability to adjust the height of your car with rebound damping adjustments as well just like the KW V2 system. The main difference being that the spring rates are linear which makes for a more comfortable ride. The KW street comfort coilovers will allow for you to drop the car 0.6-1.4 inches up front and 0.4-1.2 inches in the rear. Although you may not be able to slam the ride to the ground, you will definitely have a more comfortable ride overall.
I want lower and ride comfort but dont like the price of coilovers. Which setup is best should I do? Koni Yellows with H&R sport?
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      09-16-2011, 07:36 AM   #20
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Do a lot of research and decide...that sounds like a cop out answer...but it's true..
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