BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      02-18-2011, 07:53 PM   #1
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
SCCA STU build

I'm HIGHLY considering starting my way to STU, though the first year will be a bit painful and outclassed, beyond the fact that i'll still be tuning everything out, i won't be able to afford an LSD upgrade yet.

I've seen ranges of 350-550 up front, and 6-7 in back. Anyone have some real life feel for what the car wants for 255-265 of ST rubber up front? (Star Spec, RS3, AD08). I have the hotchkis front sway, which begs the tuning question of how much to go up with spring and down with bar...

All kinds of things are being hoped for going forward (LSD, rear subframe bushing swap, strut bar, midpipe cat delete, downpipe race cat, race seats...)
Appreciate 0
      02-19-2011, 07:19 PM   #2
cpt97m3
AutoXer
28
Rep
682
Posts

Drives: 2009 135i
Join Date: Apr 2008
Location: So Cal

iTrader: (2)

Quote:
Originally Posted by Amalfitano View Post
I'm HIGHLY considering starting my way to STU, though the first year will be a bit painful and outclassed, beyond the fact that i'll still be tuning everything out, i won't be able to afford an LSD upgrade yet.

I've seen ranges of 350-550 up front, and 6-7 in back. Anyone have some real life feel for what the car wants for 255-265 of ST rubber up front? (Star Spec, RS3, AD08). I have the hotchkis front sway, which begs the tuning question of how much to go up with spring and down with bar...

All kinds of things are being hoped for going forward (LSD, rear subframe bushing swap, strut bar, midpipe cat delete, downpipe race cat, race seats...)
If it's a full STU build, I'd start with 600F and 900R, either AST or Koni Double Adjustables. The AST's will work great if they are in your price range. The AD08's are probably what I'd use, but the Dunlops will work pretty well also. Let us know how the build comes along.
__________________
2009 135i, Alpine White, 6MT, M-Sport, iDrive, iPod/USB, Heated Seats, Premium Sound, BMW Assist
Appreciate 0
      02-19-2011, 10:11 PM   #3
aisthetes
First Lieutenant
aisthetes's Avatar
9
Rep
337
Posts

Drives: 997.1 Carrera S
Join Date: Sep 2008
Location: SoCal

iTrader: (0)

Link to my two posts with 255 front tire detail using AD08s.

http://www.1addicts.com/forums/showthread.php?t=488194
Appreciate 0
      02-25-2011, 03:39 PM   #4
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
right now i'm thinking for "Stage 1"

AST 4100s, stay with the 550 up front that comes with, up to 900 in the back, grab some swift thrust sheets for front and rear, vorshlag camber plates up front. M3 front strut bar.

Rear m3 camber link, rear M3 subframe Bushings, Quaife LSD, rear M3 E93 roll bar

APEX ARC-8, 17x8.5 with 255/40 RS3's (eventually will be the "rain" set)

mild rear fender rolling, front's we believe will be just fine.


Eventually i'll be more aggressive up front with fender rolling and at the least get 265's up front, and hold onto the pipe dream that SOMEHOW, wider up front can happen with the right combo, testing, fender rolling, blahblahblah.

Probably next would be bushings. Up front i think is easy, get some powerflex polyurethane bushings for the control arms and tension rod i can't touch or replace. In back, i've heard some credible opinion to NOT do poly for the RTABs, so i haven't seen what other direction to go with that. Not sure about poly in other parts of the rear, but really that's where i'm unsure which way to go. i know i can't touch both the upper and lower control arms, and right now the camber link kit i think covers the lower control arm allowance, but i'm unsure if i can also do the adjustable toe control arm...

Eventually midpipes, downpipes with Race Cats, not sure what way to go with Intake, too much hearsay and i want to keep my torque. I already have a muffler delete and hotchkis front sway. Eventually upgrade the 4100's to 4200's, get some lightweight seats, lightweight battery...

Stupid question on race seats, anyone know if the ST allowance of 25 lbs is race seat only or race seat and brackets? I haven't seen too many seats right at 25, usually 19 or 31 or so.
Appreciate 0
      02-27-2011, 10:42 AM   #5
Dwnshift
Enlisted Member
Dwnshift's Avatar
5
Rep
31
Posts

Drives: 128i
Join Date: Dec 2010
Location: Cincinnati

iTrader: (1)

Whats the weight for the class?
A limited slip is a must.
I can tell you this...we are the other way with the spring rates.
Appreciate 0
      02-27-2011, 01:50 PM   #6
cpt97m3
AutoXer
28
Rep
682
Posts

Drives: 2009 135i
Join Date: Apr 2008
Location: So Cal

iTrader: (2)

Quote:
Originally Posted by Dwnshift View Post
Whats the weight for the class?
A limited slip is a must.
I can tell you this...we are the other way with the spring rates.
There is no minimum weight, just a list of modifications you are allowed. So if it doesn't say you can remove it or replace it, you can't. I agree on the LSD requirement. The trick is to see how much rubber you can get on in front legally, since fender flaring is not legal (but rolling the insides is).
__________________
2009 135i, Alpine White, 6MT, M-Sport, iDrive, iPod/USB, Heated Seats, Premium Sound, BMW Assist
Appreciate 0
      02-27-2011, 07:15 PM   #7
Dwnshift
Enlisted Member
Dwnshift's Avatar
5
Rep
31
Posts

Drives: 128i
Join Date: Dec 2010
Location: Cincinnati

iTrader: (1)

and we are on 225 tires front and rear.

we are currently running a custom LSD from Diffs online.
I would probably go away from as much preload as we have in ours.
Appreciate 0
      03-03-2011, 03:21 PM   #8
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
Firstly two quick plugs!

Harold at HPA is the best.

A and L are a breeze to work with and up front about EVERYTHING if stuff is to be done in Chicagoland.

If all things line up, the LSD install will be coming soooooon.

I went with an OS Giken, sale finalizing right now. I had to change some of my plan since the m3 lower control arm changes the mounting style (goes from pin to eye), so my 4100's i'm picking up will be no good. If i get good enough and need that extra edge, i'll go to 4200's, probably from Harold () with the M3 eye style.

For now, i feel okay with the 550 fronts and the thicker hotchkis front swaybar. I'm going (for now) with a 784 rear spring rate with the thicker e93 rear sway bar, and feeling it out from there. I know one STU opinion where a 700 front was a little too much so he went back to the stock front sway. I'll probably just play with stuff as i go along, but i think these rates will do fine for this year, learn the car more, then next silly season decide what to try.

For now, i might leave bushings alone, or at least put off until later in the season. Since i'm not doing the m3 lower control arm right now in the rear, i could look at swapping the uppers, but if long term i would in fact do the lower control arm, that would be wasteful.

I'll be running 255/35/18 fronts and 275/35/18 rears (star specs), and look into a 265 fitment at some point. IF a 265 AD08 (which i hear runs WIIIIIDE) can fit up front, i'd consider doing the effort to get the 285 AD08 in back.

So short of a Schroth quick fit harness (i'm doing the shortcut that i saw somewhere on here, where an audi guy took his and had to mount the outbound lower end by a bolt, though if anyone knows if the "shortcut" is a better fitment in the e46 bimmer size, by all means ) i've got my items in line.

And i thought i'd just throw the question out there.

Anyone consider running Toyo R1R's 265/35/18's square? I know they hate heat...

And does anyone know of a high offset 17x9 or 17x9.5?

Last edited by Amalfitano; 03-05-2011 at 02:58 PM..
Appreciate 0
      03-05-2011, 03:56 PM   #9
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
I bought 1.1 meters of tire today

Actually came out closer to 1155mm when all stacked up, but for the effective tread width, it runs Basically a perfect 275mm, i had it at ten and 7 or 8 tenths of an inch in a quick rough measurement. My ARC-8's arrive Thursday, the OS Giken a little after next weekend, with hopefully getting installed on the 17th. If Anthony and the Tech are up for it, I'll take pictures of that too. I have a good avenue for getting my hands on Take-Off's from PDX and NASA events, so hopefully if I get a chance, get my hand's on some 265's for cheap even if they don't have a whole lot of life left for fitment testing and possibly an event or two for some feedback of the feel of the different brands.

For now i'm going to not worry about the bushings and react to the setup as I go along. I'm very tempted to borrow about 30mm of spacer and test fit the 275 star specs up front, see if it's feasible to ROOOOLLLLLLLLL that room in there. Though a 275 pinched on a 9" rim would round the shoulders a bit and help fitment................

I'm probably going down a path of trouble

Last edited by Amalfitano; 03-05-2011 at 04:33 PM..
Appreciate 0
      03-05-2011, 04:34 PM   #10
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
Name:  FATTY.jpg
Views: 983
Size:  32.2 KB

Quick phone picture i took from earlier...
Appreciate 0
      03-05-2011, 04:44 PM   #11
Xaeryan
Lieutenant
Xaeryan's Avatar
27
Rep
566
Posts

Drives: Sideways mostly
Join Date: Apr 2009
Location: Hazleton, PA

iTrader: (4)

What is the suspension setup you went with up front? Camber plates? Wheel offsets? Fender rolling?
I'm curious how the 255 Z1s will fit, as I'm trying to figure out if I can stuff 245s up front to at the very least match what the Evos/STIs can run in STU. Based on a rudimentary fitting of the rear wheels/tires up front (currently running 255 Z1s on them), they did not even come close to fitting, but offset is way different from what I'd actually be running.

Let me know how this goes...
Appreciate 0
      03-05-2011, 05:25 PM   #12
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
Quote:
Originally Posted by Amalfitano View Post
AST 4100s, stay with the 550 up front that comes with, up to 900 in the back, grab some swift thrust sheets for front and rear, vorshlag camber plates up front. M3 front strut bar.
For the Fronts I haven't changed my mind at all and went with this, with just dropping to 784 in the rear instead.

I'll be putting on APEX Arc-8's, 18x9 et 42 up front with a 5mm spacer, and 18x9.5 et 62 (or is it et 63?) rear.

By Eddy's opinion and fitment for the other 1addicts member from gotcone.com running the same setup, the fenders shouldn't even have to be touched. But Camber, thus far the opinion is 2.7 degrees or more, i'll be simply maxing out Street wear be damned. (i'll also be daily driving on different wheels/tires)

Right now i'm at least considering dragging this wheel/tire set in the car and swapping onsite, though i have to look at a better jack than my garage setup, preferrable lighter and lower.

I'll also be staying with Toe zero up front, and going Toe-in, not sure how much yet, in the rear.
Appreciate 0
      03-10-2011, 07:58 PM   #13
RedTRex
Digital Cerebrum
United_States
9
Rep
408
Posts

Drives: 05 330ci ZHP
Join Date: Feb 2008
Location: Jacksonville, FL

iTrader: (4)

Garage List
2005 BMW 330ci  [0.00]
I am running a square setup 265/35r18 XSs on CSL reps with ASTs and Vorshlag camber plates - I slam them at the track. Hotchkis FSB (I am the original member of this forum to install one).
- 265s are a very tight fit - the rears rub on large dips/bumps.
- No mech LSD. Been successful w/o so far.

*strongly recommend you keep stock RSB as this car is prone to snap oversteer.....trust me I know I had the Hotchkis RSB on mine for a short time.
Appreciate 0
      03-10-2011, 09:16 PM   #14
larryn
Lieutenant General
United_States
2009
Rep
10,169
Posts

Drives: '97 332ti, '18 F31, '16 GT4
Join Date: May 2005
Location: Seattle

iTrader: (2)

I can safely say that short of sledgehammer work, you're not fitting 265 AD08s up front. The 265 XSs that RedTRex is talking about are about an inch narrower. The Neovas run very wide. I am running 255 StarSpecs up front (275 rear) and rear was direct, no issue fitment. Fronts needed pretty substantial rolling and -2.6deg camber. I can get up to -3.1 up front with my Koni Yellow/H&R Sport/Vorschlag Camber plate/M3 Arms setup/M3 sway setup. Rear bushings make a sizable difference too.

Sounds like you have a great project started! Let us know how your continue to make out.
Appreciate 0
      03-11-2011, 12:11 PM   #15
Eddy@ApexRaceParts
348
Rep
1,655
Posts

Drives: E30 M3, F10 M5
Join Date: Jun 2009
Location: Bay Area, CA

iTrader: (6)

Quote:
Originally Posted by Amalfitano View Post
For the Fronts I haven't changed my mind at all and went with this, with just dropping to 784 in the rear instead.

I'll be putting on APEX Arc-8's, 18x9 et 42 up front with a 5mm spacer, and 18x9.5 et 62 (or is it et 63?) rear.

By Eddy's opinion and fitment for the other 1addicts member from gotcone.com running the same setup, the fenders shouldn't even have to be touched. But Camber, thus far the opinion is 2.7 degrees or more, i'll be simply maxing out Street wear be damned. (i'll also be daily driving on different wheels/tires)
This is not accurate. Unless I'm thinking of someone else, I believe we had numerous, long discussions about your fitment. I never said a 255 start spec can fit up front without fender rolling, let alone on the 9" wheel as it would also need a spacer which guarantees issues. At certain ride heights you might get around it, but it wasn't part of the topic of our discussions. You wanted to fit a 265 on a 9" wheel like on the BERK 135. I said that their fender and bumper was heavily modified, and I do not recommend that setup at all unless you're willing to do the same. I never recommend 9" front wheels to anyone, and only those who make it clear that they understand the fitment issues end up getting them.

I'm just clarifying this for others future reference.
Appreciate 0
      03-14-2011, 02:19 PM   #16
RedTRex
Digital Cerebrum
United_States
9
Rep
408
Posts

Drives: 05 330ci ZHP
Join Date: Feb 2008
Location: Jacksonville, FL

iTrader: (4)

Garage List
2005 BMW 330ci  [0.00]
Interesting. offhand are 275 Starspecs any wider than 265 XSs? Mine rub on dips. I did set ride height same as stock with the ASTs.

I get -3.5 ish on the front - tires barely tuck with 7mm spacers.


Quote:
Originally Posted by larryn View Post
I can safely say that short of sledgehammer work, you're not fitting 265 AD08s up front. The 265 XSs that RedTRex is talking about are about an inch narrower. The Neovas run very wide. I am running 255 StarSpecs up front (275 rear) and rear was direct, no issue fitment. Fronts needed pretty substantial rolling and -2.6deg camber. I can get up to -3.1 up front with my Koni Yellow/H&R Sport/Vorschlag Camber plate/M3 Arms setup/M3 sway setup. Rear bushings make a sizable difference too.

Sounds like you have a great project started! Let us know how your continue to make out.
Appreciate 0
      03-14-2011, 07:07 PM   #17
larryn
Lieutenant General
United_States
2009
Rep
10,169
Posts

Drives: '97 332ti, '18 F31, '16 GT4
Join Date: May 2005
Location: Seattle

iTrader: (2)

Quote:
Originally Posted by RedTRex View Post
Interesting. offhand are 275 Starspecs any wider than 265 XSs? Mine rub on dips. I did set ride height same as stock with the ASTs.

I get -3.5 ish on the front - tires barely tuck with 7mm spacers.
275 starspecs are prob 1/5" wider than the 265 XS. Since I'm lowered, I have -1.2 deg in the rear. I have had two rubs in the rear in over a year. Never on the track, only making it bottom out on a ridiculous left hand turn into a very quick downhill>uphill transition by my house. DAMN fun corner, though I know of not other corners that compress the car as much as that turn (inclusive of turn 3 @ Mt Tremblant). Leaves your stomach on the floorboard.
Appreciate 0
      03-14-2011, 11:58 PM   #18
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
To be clear, it is moreso my talks with gotcone that let me think to try this out, not neccesarily Eddy's specific opinions that made me think this was a non-fender rolling experience.

It will be a 5mm spacer up front. His (gotcone's) take was no fender rolling. I'll be making my mind up about fender rolling AFTER seeing everything on the car. At this point i'm speculating optimistically. This wouldn't be a daily driven wheel/tire, just a daily driven vehicle on something much less aggressive.
Appreciate 0
      03-15-2011, 01:42 PM   #19
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
Quote:
Originally Posted by RedTRex View Post
Interesting. offhand are 275 Starspecs any wider than 265 XSs? Mine rub on dips. I did set ride height same as stock with the ASTs.

I get -3.5 ish on the front - tires barely tuck with 7mm spacers.
What are the offsets of your CSL reps?
Appreciate 0
      03-16-2011, 11:19 AM   #20
RedTRex
Digital Cerebrum
United_States
9
Rep
408
Posts

Drives: 05 330ci ZHP
Join Date: Feb 2008
Location: Jacksonville, FL

iTrader: (4)

Garage List
2005 BMW 330ci  [0.00]
Quote:
Originally Posted by Amalfitano View Post
What are the offsets of your CSL reps?
I believe the are et40.
Appreciate 0
      03-16-2011, 12:54 PM   #21
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
so yeah, for the rears at least, that's a 20mm difference, i'd guess that's where your rubbing comes from where Larryn's isn't and hopefully mine won't as well.

For now, i'm willing to try out the rear sway. My daily drive is all street, no highway, so i feel pretty confident i can get to a few autocross events to see if i'm having any oversteer issues with the M3 rear sway. And also since i'm only autocrossing for this year, snap oversteer really just means tire wear and cone marks, not walls

If push comes to shove, i'll still have the OEM to return to.
Appreciate 0
      03-19-2011, 12:02 AM   #22
Amalfitano
Second Lieutenant
7
Rep
269
Posts

Drives: 2009 135i STEP, Future //M2012
Join Date: Jan 2010
Location: Chicago

iTrader: (1)

Garage List
2009 135i  [0.00]
I was a little too busy enjoying the shop and shooting sh*t with the guys that i didn't take any pics. Though the housing was already intact at that point anyway. They put the carrier in offsite since they were cooling the diff and heating up the housing or some such for ease of fitment. Subframe bushings are tomorrow morning, possibly followed by some garage wrenching of some coilovers if there's enough day left
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:35 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST