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Eibach Sportline vs Pro-Kit spring rates and stiffness ?
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01-06-2012, 08:14 AM | #1 |
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Eibach Sportline vs Pro-Kit spring rates and stiffness ?
Hi,
Does anybody know the spring rates of Eibach Sportline (not Pro-Kit) ? I can't seem to find this information anywhere...I am not sure what to choose between Bilstein B12 Pro-Kit (includes Eibach Pro-Kit springs) and Sportline (includes Eibach Sportline springs). I am sure the Pro-Kit is very similar to my M-Sport judging by the spring rates, but I'm not sure how the Sportlines are much stiffer or not ? Thanks ! |
01-06-2012, 08:47 AM | #2 |
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You're right abotu the Pro Kit springs, not sure about the Sportline spring rates though. Have you tried contacting Eibach? Give them a call, they have been very helpful/knowledgable whenever I called them.
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01-06-2012, 09:12 AM | #3 | |
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http://www.e90post.com/forums/showthread.php?t=189173 |
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01-12-2012, 11:24 AM | #4 |
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Keep in mind that Eibach has a different spring kit for the 335 than what you're looking up. The part numbers in your post above are for the 328 and 330. Eibach does not offer a Sportline for the 335.
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01-12-2012, 04:25 PM | #5 |
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You are right, thanks. This made my choice easier, I have already ordered the Bilstein B12 Pro-Kit suspension
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02-03-2015, 07:43 PM | #6 |
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Thread revival time.
In the last 2 yeras, Ive used my 135i on the track 70% of the time, and on the street 30% of the time. Looking for better handling, less weight transfer and squat during cornering, braking, accelerating. I dont care for adjustments, want something low maintenance, and budget is limited, so no coilovers. Getting ready to pull the trigger on damper/spring upgrade for my E82/135i within a few days. My short list is the following, all sitting at the same price level:
Which kit would you choose and why?
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2011 X3 35i with M pack + 2011 135i w/6SPMT | 255 square tire setup | Quaife 3.46 LSD | Diff lock down bracket | Bilstein B8+Swift SpecR springs+H&R FSB | CDV delete | BMS Oil Tstat bypass | ER FMIC & CP | N54Tuning DP | GC Street Camber Plates | M3 FCA +guide rods+RSFB's+Tranny mounts | Manzo toe arms | Cobb Stg2 agressive tune | Hawk DTC70 brake pads | RB SS brake pistons | Goodridge SS brake lines | Custom brake cooling ducts
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02-28-2015, 07:40 PM | #7 | |
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02-28-2015, 08:06 PM | #8 |
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Bilsteins B8 with Swift Spec-R springs (201+503lb/in rates), rear M3 guide rods, and Dinan Rear Shock Mounts. Parts will get installed by a local shop in about two weeks ...
Longest lasting dampers and stiffest springs out there, short of a coilover. More wheel clearance than a coilover setup. I get to keep using my four 18x8.5 ET52 rear stock wheels and hopefully 255/35R18 tires. Should be a step up from stock dampers and springs, which Ive been abusing at the track for two years. More money left for for tracking events.
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2011 X3 35i with M pack + 2011 135i w/6SPMT | 255 square tire setup | Quaife 3.46 LSD | Diff lock down bracket | Bilstein B8+Swift SpecR springs+H&R FSB | CDV delete | BMS Oil Tstat bypass | ER FMIC & CP | N54Tuning DP | GC Street Camber Plates | M3 FCA +guide rods+RSFB's+Tranny mounts | Manzo toe arms | Cobb Stg2 agressive tune | Hawk DTC70 brake pads | RB SS brake pistons | Goodridge SS brake lines | Custom brake cooling ducts
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03-25-2015, 08:29 PM | #10 |
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Hey Dcaron, ca va?
How's those B8 struts? I just ordered a set of XI ones and eying a set of Eibach Pro Line springs for my car.. thanks!
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2006 BMW 325xi E91 Wagon SGM
18" Fast Nemesis / Azentis Staggered Bilstein B12 w/E93 Eibach Pro Kit 2009 CIC Retrofit + Combox 6NR, 6NF, snap-in retrofit |
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03-25-2015, 08:40 PM | #11 |
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Love to hear about drop on those swift spec r springs. I think the b12 kit isn't much of an upgrade in the handling department over stock sport suspension. I like the konis but there is no way I want the hr springs that slam the car. The silly looking. Perhaps the swift are the key??
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03-26-2015, 12:46 AM | #12 |
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Based on what experience with the kit? My '11 E90 with sports suspension handles nowhere near as good as my previous '08 with the B12 kit. I've gone from sports to B12 and now back to sports and IMO it's a big handling upgrade.
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03-26-2015, 08:19 PM | #13 | |
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Like everyone else that frequents forums I have researched reviews and my comment is based on this second hand knowledge. Is that ideal? Of course not. But this is generally the purpose of forums. That's why I am here at least. To Learn. They seem like a comfort upgrade first and perf upgrade second. Even the sales pitch on the websites speak to a small performance upgrade and are good if "your stock suspension is getting old". Trust me id rather get the b12. It's a very cheap option. But I struggle to find reviews that aren't speaking about how comfortable they are as the MAIN message of the review. Most importantly, Intuitively it doesn't sound too great to me to upgrade a suspension to the same spring rates. Apparently you think these are a big perf upgrade. Could you expand where you are feeling the main improvements? Last edited by matty088; 03-26-2015 at 08:24 PM.. |
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03-26-2015, 11:17 PM | #14 | |
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Present - 2016 340i, Alpine White, Black, M-sport, 6-spd, Track Handling, Tech pkgs
Past - 2011 E90 335i, Alpine White, Ivory, Sport, Premium, Steptronic Past - 2008 E90 335i, Titanium Silver, Dakota Grey, ZSP, Steptronic, 6FL, Wagner FMIC, Bilstein B12 Pro-kit, M3 control arms, SS F/R brake lines |
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03-30-2015, 06:30 PM | #16 |
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Ok, so I have a strong relation with the original poster which for some reason is not allowed to post on this forum since some years ago.
After 2 years and about 25000 kilometers with the Bilstein B12 Pro-Kit (B8 + Eibach Pro-Kit), clunking noises begun to develop on the front dampers after the dampers are warmed up (very quickly in summer, after about 30 minutes of driving in the winter). Identical noises happened to a friend of mine who (at my recommendation) bought the Bilstein B12 Sportline for his e90 320D. The noises are from the shocks and not from other suspension elements. There are tons of Bilstein clunking noise after warm-up reports on the Internet. A mechanic friend said that the problem comes from the monotube design, after some time the inner rods begin to bang on the outer shell due to wearing of some guides. Also, the rear damper top mounts showed very heavy wear after one year, and they were new Lemforder parts mounted along with the B12 dampers. Not sure what caused this but if you hear clunking noises from the trunk this is probably the cause. So at this time I cannot recommend the Bilstein monotube shocks, at least not the B8's. The ride is great, better than stock M-Sport and not harsh at all, I really can't complain. But I hate the noises and it can't be a coincidence to happen on two e90 cars at once. Springs have similar spring rates to stock M-Sport, the Eibach sway bars are highly recommended for significantly reduced roll, otherwise the roll is significant in turns, not reduced compared to M-Sport. I bought a set of Koni Sport dampers which are waiting to be installed probably early next week or even this week. I will write a comparative review (Bilstein B12 vs Koni Sport + Eibach Pro-Kit) after installation. Last edited by kevinlevrone; 03-30-2015 at 06:48 PM.. |
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03-30-2015, 06:45 PM | #17 | |
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Also see my previous post about how long they last. |
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03-31-2015, 12:10 AM | #18 | |
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03-31-2015, 04:16 PM | #19 |
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No, because in Europe there is no lifetime warranty, only 2 years. But even if it was lifetime warranty, how would I do it ? I can't leave the car without shocks and send them to Bilstein. And if I buy another set of Bilsteins first and wait for the refund after I send in my set, what if they deny warranty for some reason and I am stuck with another set of faulty Bilsteins instead of buying another brand ?
Last edited by kevinlevrone; 04-01-2015 at 03:04 AM.. |
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03-31-2015, 07:55 PM | #20 | |
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Present - 2016 340i, Alpine White, Black, M-sport, 6-spd, Track Handling, Tech pkgs
Past - 2011 E90 335i, Alpine White, Ivory, Sport, Premium, Steptronic Past - 2008 E90 335i, Titanium Silver, Dakota Grey, ZSP, Steptronic, 6FL, Wagner FMIC, Bilstein B12 Pro-kit, M3 control arms, SS F/R brake lines |
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05-11-2015, 09:54 PM | #21 | |
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05-12-2015, 05:55 AM | #22 |
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I say go koni. I just installed b8 with eibach pro from a e93 on my wagon. quite stiff and bottoms out in the front with supreme lowering perches.. i hear koni are smoother.
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