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





 

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      02-25-2013, 03:21 PM   #419
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Quote:
Originally Posted by TheSt|G View Post
Nice work on the brakes front. Performance friction definitely has a good reputation from my E36 M3 days, and I have no doubt they are making a good thing here as well.

Curious what the weight difference between the stockers, PF, and Z4 offerings are. If there is a decent reduction, between this, 17" BBS RGRs, and proper summers instead of run flats we are talking about a serious loss of unsprung weight. Anyone have a weight on the 128i M-Sport boat anchor wheels?

This also might prove to be a good fix for the brake heat limp mode that the 128i(at least we don't have the terrible 135i "BBK") runs into on the track.

*Edit*

Looked them up on http://felgenkatalog.auto-treff.com/ It looks like they weigh 22.3lbs and 22.4lbs for the stock front and rears respectively. Stock run flats apparently weigh 26lbs.

Given that 17x8 RGRs weigh 17.24lbs and 235/45/17 Super Sports weigh 21lbs, we are talking about a 10.1lbs reduction in unsprung weight per corner before brakes. That is an absurd performance boost.
Wow, that is a pretty impressive weight drop.

You should also have better steering response and handling with the wider tires.
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      02-25-2013, 03:57 PM   #420
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Quote:
Originally Posted by Iron Man View Post
Wow, that is a pretty impressive weight drop.

You should also have better steering response and handling with the wider tires.
Ignoring the tire width, a 40.4lb unsprung weight drop is an incredible boost in performance.
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      02-25-2013, 04:54 PM   #421
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Quote:
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Wow, that is a pretty impressive weight drop.

You should also have better steering response and handling with the wider tires.
Wider tires make handling worse. He should get a nice increase in grip, though!
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      02-25-2013, 05:13 PM   #422
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Wider tires make handling worse. He should get a nice increase in grip, though!
Wouldn't better grip = better handling? Or do you mean the higher sidewall will reduce the handling? Might be a wash in this case.
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      02-25-2013, 05:18 PM   #423
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Ignoring the tire width, a 40.4lb unsprung weight drop is an incredible boost in performance.
Yes indeed.
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      02-25-2013, 05:44 PM   #424
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Quote:
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Wouldn't better grip = better handling? Or do you mean the higher sidewall will reduce the handling? Might be a wash in this case.
He means that handling by definition has nothing to do with cornering force/ability.
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      02-25-2013, 05:44 PM   #425
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Quote:
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Wouldn't better grip = better handling? Or do you mean the higher sidewall will reduce the handling? Might be a wash in this case.
Handling is feel, response, etc.

Grip is grip. It's independent of handling.
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      02-25-2013, 05:45 PM   #426
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Quote:
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He means that handling by definition has nothing to do with cornering force/ability.
beat me to it by seconds!
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      02-25-2013, 06:04 PM   #427
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Originally Posted by Obioban View Post
beat me to it by seconds!
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      02-25-2013, 06:07 PM   #428
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Quote:
Originally Posted by Obioban View Post
beat me to it by seconds!
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      02-25-2013, 08:48 PM   #429
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Quote:
Originally Posted by Obioban View Post
Handling is feel, response, etc.

Grip is grip. It's independent of handling.
Undertand your point, I guess I've always equated the two together.
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      02-25-2013, 09:15 PM   #430
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Quote:
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Undertand your point, I guess I've always equated the two together.
Most people do! Amusingly, though, wider tires almost always make handling worse (which is not to say I'm against them-- my current summer setup is 255 front 275 rear).
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      02-25-2013, 11:10 PM   #431
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^^ i hate my staggered summer setup, i wish i went square. My winter setup feels so nice and balanced(minus the mushyness) but my summer setup i definitely feel a bit more understeer with stock sizes on 264's.
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      02-25-2013, 11:26 PM   #432
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2008 BMW 128i  [5.00]
Quote:
Originally Posted by 631twentyeighteye View Post
^^ i hate my staggered summer setup, i wish i went square. My winter setup feels so nice and balanced(minus the mushyness) but my summer setup i definitely feel a bit more understeer with stock sizes on 264's.
Pics of your 264's in matte & a red lip

I do agree regarding the feel of my winters. seems more fun
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"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      02-25-2013, 11:49 PM   #433
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here's two



I do like the winter's because they do break traction so much easier compared to summers, I don't have to push them as much to get squirrely and it makes it a bit more entertaining to drive.
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      02-26-2013, 12:00 AM   #434
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Quote:
Originally Posted by 631twentyeighteye View Post
here's two



I do like the winter's because they do break traction so much easier compared to summers, I don't have to push them as much to get squirrely and it makes it a bit more entertaining to drive.

Omg i love how this one looks!!! I dont have the M Sport package and ive never seen a 1 with the stock bumper and a lip.....but this one looks amazing. could you provide a link or for details about that lip?
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      02-26-2013, 12:13 AM   #435
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Originally Posted by USNEM_128i View Post
Omg i love how this one looks!!! I dont have the M Sport package and ive never seen a 1 with the stock bumper and a lip.....but this one looks amazing. could you provide a link or for details about that lip?
Thats the ebay lip
Look up my e87 hamann lip thread i posted more options
http://www.1addicts.com/forums/showt...php?p=13492115
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"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      02-26-2013, 12:15 AM   #436
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So i have noticed that to run 330mm rotors we may need to get this part:

34116769097, the calliper carrier bracket from z4 e89, 330i, 130i, 123d, x1
http://www.ecstuning.com/Search/34116769097/ES59880/

128i GrandAm racer, the carrier side matches the 330i above:


here is 128i version


Note that 128i version is missing the "ears" and the sides are rougher vs the smooth 330i carrier


yet another way to make me feel that I am fixing the car as a result of BMW's cost cutting, marketing and a little bit of engineering

EDIT::

Brake pads may need to be different too ( visially they look the same), maybe because of how the carrier has grooves for pads...
34116771972 130i spec
34116777772 128i
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 02-27-2013 at 04:33 PM.
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      02-26-2013, 01:10 AM   #437
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Quote:
Originally Posted by andrey_gta View Post
So i have noticed that to run 330mm rotors we may need to get this part:


here is 128i version


Note that 128i version is missing the "ears"


yet another way to make me feel that I am fixing the car as a result of BMW's cost cutting, marketing and a little bit of engineering
What makes you think you are "fixing" the car just because of a different carrier design on your car? Does it do the job properly? If so, it isn't a "problem" like you're making it out to be.

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      02-26-2013, 01:17 AM   #438
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Originally Posted by Modded328FTW View Post
What makes you think you are "fixing"
I thought it would be direct swap to use 330i sized rotors. Probably silly of me to think so, but hey Im no mechanic just a guy not afraid to DIY

And every mod so far for me has been to wake up the n52 because it seems backwards to have the engine limited vs stock in Europe
- the 330i/x3 manifold with Disa, it was already on the 330i in 2006 so why chnage to single manifold
- the Eurobox vs Stock NA air box
- the 128i brakes vs 330i front brakes & z4 e89 front brakes
- 135i BMP bbk does not work on 128i's rear ( ebrake stops working)

Seems that my mods are the retrofit type vs something that is a an improvement
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In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 02-26-2013 at 01:45 AM.
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      02-26-2013, 02:40 AM   #439
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Quote:
Originally Posted by andrey_gta View Post
I thought it would be direct swap to use 330i sized rotors. Probably silly of me to think so, but hey Im no mechanic just a guy not afraid to DIY

And every mod so far for me has been to wake up the n52 because it seems backwards to have the engine limited vs stock in Europe
- the 330i/x3 manifold with Disa, it was already on the 330i in 2006 so why chnage to single manifold
- the Eurobox vs Stock NA air box
- the 128i brakes vs 330i front brakes & z4 e89 front brakes
- 135i BMP bbk does not work on 128i's rear ( ebrake stops working)

Seems that my mods are the retrofit type vs something that is a an improvement
No loss on the 135i BBK, it's a complete waste of money compared to a real BBK. And frankly, given how often they fail, a downgrade from our setup aside from bling.

Proper Brembo BBK should be lighter than any of the stock options either way, and that's where I'll be headed eventually.

I would agree we were intentionally gimped from the factory, but that makes it almost all the more fun to fix/mod. With headers, DISA valves, and software we have the same HP as a 135i and weigh 250lbs less.
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      02-26-2013, 03:00 AM   #440
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Quote:
Originally Posted by TheSt|G View Post
No loss on the 135i BBK, it's a complete waste of money compared to a real BBK. And frankly, given how often they fail, a downgrade from our setup aside from bling.
What do you think of the following treatment of 135i brakes:
-Source used 135i calipers, all 4 sides ( figure out how to make ebrake work, similar to e86 z4 guys)
-Retrofit/rebuild using Racing Brake (RB) pistons for front (~400)
-Use a 2 piece front rotor from RB or else where ( stoptech, dba etc.)
-Consider powdercoat for color change
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 02-26-2013 at 03:07 AM.
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