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09-05-2013, 07:00 PM | #45 | |
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I could be completely wrong, but that is what I learned/was told. You should come out sometime. Let me know as I'll either be working the event and/or running if you come and play with NASA. It has been my only track I've visited but turn 1 is an absolute blast under the bridge. |
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09-05-2013, 07:55 PM | #46 |
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Limiting understeer on the 135i is not a one step process in my experience, and not something that will just one day go away. However, various modifications can help tune the car to behave more desirably.
I have the Dinan plates and highly recommend them. The first modifications I did were M3 front sway bar, M3 front links, and tires. There are different opinions on the FSB, but I did feel an increase in front end grip following the modifications. I could see in auto-x pictures that in stock form, my car was rolling quite significantly, and there was noticeable positive camber mid-turn. Also, my tire outside wear decreased a lot following this set of modifications. The next mods I did were the BMW Performance Suspension and Dinan Camber Plates. This made an even more dramatic improvement to the car. With the M3 components, BMWP suspension, and Dinan Plates I can go over -2* front camber, however I run -2* as a street/auto-x compromise. Now, there is no wear rolling onto the sidewall of the tire, and the outside part of the tire is not significantly more worn after an auto-x event. In short, increasing the negative camber on the front will definitely help. The advantage to the Dinan plate is that all of the stock components and bearings are still used, and essentially its just shifted. You still have some minimal adjustment at the top of the strut. This means you should not be any more prone to noises, vibrations, etc. up front, and maintain a more stock-like ride. The adjustable plates will allow easier adjustment and much more range, so the performance is potentially much better if that's your primary focus. Hope this helps, Tim
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09-05-2013, 09:12 PM | #47 | |
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09-05-2013, 09:35 PM | #48 | |
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2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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09-05-2013, 10:48 PM | #49 |
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Thanks guys for all the valuable input and experiences. Will follow in your footsteps.
Now I just need to find best source(s) for M3 control arms, M3 Front Sway Bar, Dinan Camber plates, and perhaps BMW Perf suspension. I need a seller who wont kill me in shipping and brokerage fees to send the stuff to Canada. The sellers that offer USPS as a shipping option are the best, most efficient, and least costly for us up here.
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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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09-06-2013, 09:16 AM | #50 | |
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Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
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09-06-2013, 09:35 AM | #51 | |
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Any good shops in Platsburgh/NY or St Albans/Vermont area?
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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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09-06-2013, 09:40 AM | #52 | |
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Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
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http://www.bmwccaclubracing.com/info...fiedshops.aspx |
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09-06-2013, 02:13 PM | #53 |
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Just got my car aligned this morning. They adjusted parralelism on all wheels (was off by .35* before). They adjusted camber on both rear wheels to -1.5* (was at -1.8* and -1.5* before). Removed the pin on the strut tower, and only managed to dial in -0.6* camber on both front wheels. They tuned in some minor toe out on my two axles.
I dont expect miracles, but will hopefully find that my car is a little more neutral at my next lapping session. NExt item on the list is to place an order for M3 control arms, perhaps before the lapping season ends here in Quebec, Canada (in a couple of weeks).
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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
Last edited by dcaron9999; 09-06-2013 at 02:31 PM.. |
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09-07-2013, 09:48 AM | #54 | |
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I was thinking about camber plates (Dinan or GC) + M3 control arms on my 2011 135i with stock M-sport suspension. I use this car year round - dual purpose street (85%) mostly and track useage (~five 20-minute sessions/month). I have a dedicated set of 205/50R17 street alloys and winter tires that will go on the car in late November until end of March. My street summer/track tires are 225/40R18F and 255/35R18R.
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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
Last edited by dcaron9999; 09-07-2013 at 10:22 PM.. |
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09-07-2013, 10:13 AM | #55 | |
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I'm thinking of hitting up SCCA Tour in Peru next year for sure, as well as trying to hit Putnam Park (I wanted to go this year but have prior commitments for Oct 5th/6th) |
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09-07-2013, 10:18 AM | #56 |
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Thanks. This is likely the path I will follow.
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09-07-2013, 10:21 AM | #57 | |
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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
Last edited by dcaron9999; 09-07-2013 at 10:20 PM.. |
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09-07-2013, 10:52 AM | #58 | |
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I would say try it out and figure out if its good enough for you. If not you can always add suspension and M3 bits as you go along. The weakest link will be your stock subframe bushings and you M sport dampers. The Konis are a great addition if you can spring for them. Many people have paired them up with the stock 2011 M sport springs and with good results. |
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09-09-2013, 08:09 PM | #59 | |
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I just got it aligned last week and finished up with just over -2 degrees camber on the front, just under 2 degrees at the back. Zero toe on the front, slight toe in on the back. Feels good and IMO is a good compromise for a daily driven car that sees the track about once a month. |
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09-29-2013, 07:36 AM | #60 |
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I just got M3 control arms, and my GC street plates installed on my 135i M-sport primarily for track days to get extra grip in corners and reduce outside edge tire wear. I asked my indi shop to adjust them to max negative camber and optimal toe out for track, and told them i would re-adjust the plates myself for street use. They did not provide me a print out of the alignment, but took a picture of the display on their alignment machine, which they promised to send next week.
I feal somewhat embarassed, but not sure how to adjust the plates, beyond the 3 bolts at the top of the strut tower. The tower opening is small, and prevents access to the top of the GC plate adjustments. My questions are : #1 - For street and winter driving, do i just need to jack the side up, and slide the three strut tower bolts to utter outside position? Will this reduce negative camber to a reasonable value for the street? #2 - If I want more pronounced reduction in negative camber, do I need to reach the plate adjustments at the top inside of the rear well? I assume I need to remove the wheel to get access to the plate. Maybe I should tinker with this, and let my local shop set it and forget it for the off-season (November to April)... Thanks.
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09-29-2013, 07:23 PM | #61 |
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You'll just need to loosen the top 3 bolts and pull/push the wheel to get the desired camber.
Beware, however...the toe will change and the specs will never be perfect after adjustments. |
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09-29-2013, 07:46 PM | #62 | |
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You will gain front toe-in when you reduce negative camber for a street setting. Anyway if its all too hard, it might be a good idea to just get it aligned at the shop. Apart from that, I want to ask how you enjoy the car with the new suspension and alignment. When I got to the car aligned with front toe-out, I actually didn't like it. It felt a bit twitchy both on the road and on the circuit. However I still have a lot to learn with setting up the car. |
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09-29-2013, 08:11 PM | #63 | |
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I was aware of the toe in, which is prefereable for street anyway, as I understand it. Im concerned that adjustments via the top three bolts will not give me enough POSITIVE camber, and that the GC camber plates also need a tug, but they would be a pain to get at, and is why I posted the question.
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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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09-29-2013, 08:21 PM | #64 | |
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I was aware of the tendency to go from max negative camber with toe out for my track setting, to less negative camber with reduced toe in for my street, setting, which is desirable as I understand it. Im concerned that adjustments via the top three bolts will not give me enough POSITIVE camber, and that the GC camber plates also need a tug, but they would be a pain to get at. On the street, I feal a bit more harshness with m3 control arms + camber plates set for max camber. But taking curves at high speed is amazing, and is more precise. Cant wait to test this set up out on the track this week. Did not notice twitchiness for now, but I havent driven enough. Top of the front tires are tucked into the wheel well, and Im considering wheels spacers to increase my track width a little, and give my car a better stance.
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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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10-18-2013, 05:31 PM | #65 | |
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10-18-2013, 08:29 PM | #66 |
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Ive actually achieved -3.2* in the front with Ground Control plates, and M3 control arms, on stock springs and shock absorbers. Been great on the track BUT, I have a rattle noise issue with the GC Street plates, that no one seems to solve. I have had my shop double-check everything, I then received different rubber bushings and bolts from Ground Control, which I replaced while following their instructions. I still have a low pitched rattle noise over abrupt and tiny bumps in the road.
Im frankly frustrated about the whole ordeal, and time + money wasted + sore back trying to solve the rattling. May throw the plates away and return to stock, or fixed plates, or Vorshlag ...
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