Tirerack
Use the following links to go directly to useful tirerack winter items: Tirerack Winter Tires. Gary's Winter Tire FAQ.
Using the links directly supports E90Post with tirerack sales commision!

  E90Post
 


TireRack

   PLEASE HELP SUPPORT E90POST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Style 189 Wheel Weights.



Wheels and Tires forum Sponsored by The Tire Rack
Please help to directly support e90post by doing your tirerack shopping from the above link. For every sale made through the link, e90post gets sponsor support to keep the site alive. Disclaimer

Wheel offset calculator courtesy of BimmerPost.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car.
    Current Wheel Width  inches             Current Wheel Offset  mm.
         New Wheel Width  inches                  New Wheel Offset  mm.
 
TIRE WIDTH
/
ASPECT RATIO
- WHEEL DIAMETER
ORIGINAL TIRES
/
NEW TIRES
/
Based on your stock wheel setup, your new wheel will have:
Original Tires Diameter (in.)
      New Tires Diameter (in.)
  Difference in diameter (in.)
           Percent Difference %
                     
Speedo @60mph will read: mph
Collapse/Expand the BimmerPost Wheel and Tire calculator
Reply
 
Thread Tools Search this Thread
      07-02-2007, 10:35 AM   #1
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

Style 189 Wheel Weights.

Okay, with just 37 miles on my E92 335i Coupe with the 18" 189 style wheels that come with the Sport Package I weighed the wheels/tires.

Front:
Combined = 54.6 lbs
Bridgestone RFT tire = 25
189 Wheel = 29.6

Rear:
Combined = 57.2 lbs.
Bridgestone RFT tire = 26
189 Wheel = 31.2


As a point of reference/comparison, I also weighed my E90 335i Sedan's 18" Style 162 wheel/tire combo when they were new too.
Those weighed:
Front = 31.2 lbs
Rear = 32.2 pounds

So the Coupe's Sport Package Wheels weigh
1.6 lbs less in front and
1.0 pounds less in rear than the sedan's Sport Package wheels.

I suspected they would weigh a bit less simply be looking at them.
They have less metal than the sedan's wheels.

The Coupe is listed as being around 25 pounds less in overall weight than the sedan. Though slight, having a bit less rotational mass on the stock wheels, having slightly better weight distribution (22 lbs more weight over the rear tires in the coupe for closer to 50/50 W.D., and being slightly lighter overall, is probably the reason BMW lists the acceleration of the coupe as being .1 second faster to 60 mph than the sedan.

Take care all.
Driver72 is offline  
0
Reply With Quote
      07-03-2007, 04:59 PM   #2
DrewKo
Lieutenant Colonel
 
DrewKo's Avatar
 
Drives: 335i Montego Blue Saddle Brown
Join Date: Jan 2007
Location: Atlanta, GA

Posts: 1,568
iTrader: (4)

Garage List
2007 335i  [0.00]
Cool, tx for doing this. Your scale was accurate though? And, i wonder where people are getting the idea the 189 weighs in the 25-26 lb range?
DrewKo is offline  
0
Reply With Quote
      07-03-2007, 05:16 PM   #3
Carlito12
Lieutenant
 
Carlito12's Avatar
 
Drives: 07 E92 335i 6MT TiAg
Join Date: Jan 2007
Location: SoCal

Posts: 458
iTrader: (0)

nice work !

BTW congrats on the new ride.

How do u like it compared to the e90?
__________________

JB3 KW V2 i-Forged Senekas & ETC
Carlito12 is offline   United_States
0
Reply With Quote
      07-03-2007, 05:57 PM   #4
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

Yes, my scale is very accurate, actually surprisingly so.
I've weighed myself at the gym and at my doctors on one of those
counterbalance scales and then moments later after coming home weighed myself on my digital scale. I've always came up the same weight as those counterbalance scales. I've probably done this 3-4 times and never has it been off.

I've also checked it weighing items as little as 20 pounds and it's been right on with those too.

I think the 25-26 lbs range SOME people have said is pure speculation and guesstimates.

As for the new ride compared to the E90 335i.
Love the coupe. It's solid as a rock and feels great.
I just liked the looks of my sedan very much, but just love the coupe.
It looks so great.

This coupe feels strong too. I had the PROcede v1.4 on my sedan, so after I got my coupe I thought it might feel a bit weak by comparison. But it doesn't, it feels quite strong. But I have been driving rental cars for the past 8 weeks, so maybe I just forgot how strong the stock 335i is and how much stronger it is with the PROcede!
Driver72 is offline  
0
Reply With Quote
      07-04-2007, 04:21 AM   #5
kujo
Major
 
Drives: BMW
Join Date: May 2006
Location: LA, CA USA

Posts: 1,153
iTrader: (1)

His scale is accurate.
I've weighed my wheels on them and they came in at exactly what the manuf. said they would.

25 lbs less than the sedan and 1 lb at each corner will NOT get you .1 to 60 though and we all know it.

that is BMW propoganda for selling coupes.

that .1 to 60 could be lost or gained in sooooooo many ways.

Less/more fuel.
Drivers weight
the list can go on and on and on and on.....

Everything feels stong after rentals for 8 weeks.
I had the Buick for 7 weeks.
I think you just forgot how the 335i drove in the time you were away bro.
I thought the same thing when I got the car back from Fuel Pump hell.
After a week or two, you'll remember how it feels and it all comes back.

kj
kujo is offline  
0
Reply With Quote
      07-04-2007, 01:37 PM   #6
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

Quote:
Originally Posted by kujo View Post
His scale is accurate.
I've weighed my wheels on them and they came in at exactly what the manuf. said they would.

25 lbs less than the sedan and 1 lb at each corner will NOT get you .1 to 60 though and we all know it.

that is BMW propoganda for selling coupes.

that .1 to 60 could be lost or gained in sooooooo many ways.

Less/more fuel.
Drivers weight
the list can go on and on and on and on.....

Everything feels stong after rentals for 8 weeks.
I had the Buick for 7 weeks.
I think you just forgot how the 335i drove in the time you were away bro.
I thought the same thing when I got the car back from Fuel Pump hell.
After a week or two, you'll remember how it feels and it all comes back.

kj

I don't think it's BMW propaganda.
Obviously less overall weight, and less rotational mass WILL give slight acceleration advantages.
True, driver weight, fuel and all that changes that, but all else being equal (same driver weight, same fuel, same amount of fuel, etc etc.)
A car that weighs 25 lbs less, and has 1 pound less rotational mass on it's wheels will accelerate a touch quicker. Racers spend fortunes and go to extreme lengths to lose 25 lbs in their cars all in the name of better handling and quicker acceleration, as well as better braking, better fuel economy, etc etc. So though slight, less weight does mean better acceleration and performance.
In the 335i's case whether it's a full .1 second to 60 I don't know, it might be a full .1 second in the 1/4 mile. It might be .07 seconds to 60 and BMW rounded.

The old "rule" in 1/4 mile racing is 100 lbs is equal to .1 tenth, but that's not always true and fully accurate. It's a "baseline" at best.
I've done runs with someone in my car or me in some else's and the additional 160-165 lbs dropped me .25 seconds or more on runs where I felt I had a great launch and shifted perfectly.

But as you stated, "all else" is never equal in the real world.
Somebody that weighs 70-80 pounds more, and has more fuel in his car, can accelerate a touch quicker than someone with less weight and fuel, if his car is running stronger and/or he's a better driver.

BMW also lists the coefficient of drag on the sedan and coupe both at .30
Which I find odd and don't understand how that's possible since the coupe is like 1.5 inches lower and skinnier than the sedan.
Less height, and skinnier should mean less air hitting the front of the car, they might of just rounded those figures as well.

But again, either way it's a small amount and in the real world, there are too many variable that can balance all those tiny difference out.

In any case, this post was just for notifiying those of what the Style 189 wheels approximately weigh. Still heavy pigs.
Driver72 is offline  
0
Reply With Quote
      07-04-2007, 07:09 PM   #7
kujo
Major
 
Drives: BMW
Join Date: May 2006
Location: LA, CA USA

Posts: 1,153
iTrader: (1)

" I don't think it's BMW Propoganda "
Spoken like a true coupe owner. ;-)

Lower and skinnier doesn't mean better.

different shapes effect air differently.
An F1 car has a different aero package for each track.

The front fascia difference alone could effect the drag co e.
Lower and skinnier don't mean shit if the front of the car was a square.

25 lbs and and 1 lb at each corner will NOT buy you .1 to 60 and you know it.

It may buy you a second or two around VIR, Laguna or the like with a 1.5 min+ lap time.... but NOT .1 to 60.
I know all too well what 'racers' do to gain time......
Shit, if I didn't weigh 210, I'd be out there racing TAG karts..... but why ?
I can't get the same Power/Weight ratio as a 165 lb guy like yourself, in a low HP Kart....
I'm less than 1 sec off the record lap time up at Jim Halls Kart racing track.
The guy that has it weighs 155... me 210.....oh what I would give to drop 55 lbs....

I know the post was for wheel weights, but was just responding to the end of the Orig Post.

of course 165lbs will drop you .2 in the 1/4.......
So, how could losing 25 with same drag Co E buy you .1 to 60 ?

Marketing my friend !!!!!!!!!!!!!!!!! Marketing.......
kujo is offline  
0
Reply With Quote
      07-05-2007, 01:36 PM   #8
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

Quote:
Originally Posted by kujo View Post
" I don't think it's BMW Propoganda "
Spoken like a true coupe owner. ;-)
Now KJ you know that has nothing to do with it.
Loved my sedan too, just like the looks of the coupe better.


Quote:
Originally Posted by kujo View Post
Lower and skinnier doesn't mean better.

different shapes effect air differently.
An F1 car has a different aero package for each track.

The front fascia difference alone could effect the drag co e.
Lower and skinnier don't mean shit if the front of the car was a square.
But the front of the 335i isn't square.
And lower and skinnier is surely better than taller and fatter when it comes to aerodynamics.
The sedan and coupe have very similiar front end fascia. I just don't see how the coupes fascia could be any less aerodynamic than the sedans and counteract the fact the coupe is lower and skinnier?
If BMW was using Marketing to justify the coupe, they surely would of printed the coeff. of the coupe as being better if the numbers rounded down.
One other thing, the coupe is a couple inches longer.
Drag coeff. is also affected by length. But differently than frontal mass and how much air hits the front.
It takes the wind longer to pass over a longer car. Affecting the drag coef.
That's probably where in comes in, but I believe it acts more like down or lifting force on a longer car (depends on design) than drag from hitting the front of the car due to more frontal area space.
Many of the CarTest programs ask for frontal space when figuring aerodynamic drag, length of car doesn't affect it as much, but will show in the overall drag coeff.
That could also be a possibility in both cars having the same .30 rating. Just different wind affects.


Quote:
Originally Posted by kujo View Post
25 lbs and and 1 lb at each corner will NOT buy you .1 to 60 and you know it.
It's not just the 25 pounds KJ.
It's 25 lbs overall weight, a touch less rotational mass, and that the coupe has 22 pounds more weight over the rear wheels and that aids in launching the car. Granted, again, add those three things up and it might still not be quite .1 seconds, maybe more like .07-.08 but BMW just rounds the figures. Those 3 things are a factor, it's not marketing.


Quote:
Originally Posted by kujo View Post
It may buy you a second or two around VIR, Laguna or the like with a 1.5 min+ lap time.... but NOT .1 to 60.
It's not 25 lbs, or the 1 pound less rotational mass in the wheels that will affect lap times that much, that is part of it sure. But more will be the slightly better weight distribution, the slightly stiffer body/chassis, and the lower center of gravity the coupe has. Added all up it might give it a one second advantage. Doubtful if it's even 2 seconds on a 1.5 minute track, maybe 2 seconds on a 3+ minute track.


Quote:
Originally Posted by kujo View Post
of course 165lbs will drop you .2 in the 1/4.......
So, how could losing 25 with same drag Co E buy you .1 to 60 ?

Marketing my friend !!!!!!!!!!!!!!!!! Marketing.......
Because it's cumulative.
1000 pounds added weight wil slow most cars down more than 1.0 seconds in the 1/4.
But as little as 50 lbs can slow a car down .1 second.
Again, BMW isn't going to list the sedan's 0-60 at 5.2 seconds and the coupes at 5.13
I'm sure they rounded in the name of ease, but it's not marketing when a car is a touch lighter, has a bit less rotational mass in the stock wheels, has slightly better weight distribution for better launching, etc.

As we spoke, all that goes out the window in the real world anyway, where drivers skill, size, brand of gas, etc vary. As well and the outputs of each engine...which can vary by as much as 10 hp. My coupe might not be as strong as my sedan stock, so that counteracts any weight loss the coupe has. I didn't buy the coupe for the 25 lbs weight savings or the slightly stiffer chassis, I got it because I loved the look of it more and didn't need another sedan.
Not worth debating over, I was just pointing interesting facts out and trying to see where BMW gets there figures for on each car.
Later
Driver72 is offline  
0
Reply With Quote
      07-05-2007, 01:50 PM   #9
S4to335
Brigadier General
 
Drives: 95 Audi S6
Join Date: Jan 2007
Location: San Jose, CA

Posts: 4,377
iTrader: (5)

Garage List
Quote:
Originally Posted by Driver72 View Post
Okay, with just 37 miles on my E92 335i Coupe with the 18" 189 style wheels that come with the Sport Package I weighed the wheels/tires.

Front:
Combined = 54.6 lbs
Bridgestone RFT tire = 25
189 Wheel = 29.6

Rear:
Combined = 57.2 lbs.
Bridgestone RFT tire = 26
189 Wheel = 31.2


As a point of reference/comparison, I also weighed my E90 335i Sedan's 18" Style 162 wheel/tire combo when they were new too.
Those weighed:
Front = 31.2 lbs
Rear = 32.2 pounds

So the Coupe's Sport Package Wheels weigh
1.6 lbs less in front and
1.0 pounds less in rear than the sedan's Sport Package wheels.

I suspected they would weigh a bit less simply be looking at them.
They have less metal than the sedan's wheels.

The Coupe is listed as being around 25 pounds less in overall weight than the sedan. Though slight, having a bit less rotational mass on the stock wheels, having slightly better weight distribution (22 lbs more weight over the rear tires in the coupe for closer to 50/50 W.D., and being slightly lighter overall, is probably the reason BMW lists the acceleration of the coupe as being .1 second faster to 60 mph than the sedan.

Take care all.

I really dont think that BMW has different 162 wheels for the Coupe and Sedan..They are the same...but made in different batches.
__________________

Car is now gone .... :-(
S4to335 is offline   United_States
0
Reply With Quote
      07-05-2007, 02:50 PM   #10
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

The style 162 is made just for the sedan.
The style 189 is on the coupe.
Driver72 is offline  
0
Reply With Quote
      07-05-2007, 03:34 PM   #11
S4to335
Brigadier General
 
Drives: 95 Audi S6
Join Date: Jan 2007
Location: San Jose, CA

Posts: 4,377
iTrader: (5)

Garage List
Thanks..I feel stupid now.
__________________

Car is now gone .... :-(
S4to335 is offline   United_States
0
Reply With Quote
      07-05-2007, 06:34 PM   #12
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

I figured you knew that, just got confused.
Driver72 is offline  
0
Reply With Quote
      07-06-2007, 03:30 AM   #13
kujo
Major
 
Drives: BMW
Join Date: May 2006
Location: LA, CA USA

Posts: 1,153
iTrader: (1)

No M, he's Stupid.........not confused !!

When you coming back to town S ?

kj
kujo is offline  
0
Reply With Quote
      01-24-2012, 09:04 AM   #14
sanypark
New Member
 
Drives: E92
Join Date: Jan 2012
Location: Houston

Posts: 12
iTrader: (0)

Then I guess the following link showing BMW wheel weight is NOT correct.
I thought the link is quite useful in that it shows each weight of various BMW OEM wheels but it just turned out to be not valid.

http://bmwfans.info/parts/catalog/E9...browse/wheels/
sanypark is offline  
0
Reply With Quote
      01-24-2012, 10:15 AM   #15
jcars1990
New Member
 
Drives: m3
Join Date: Jan 2012
Location: boston ma

Posts: 8
iTrader: (0)

good to know
jcars1990 is offline  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 02:22 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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