E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > What the current weight of your street/track car?



Reply
 
Thread Tools Search this Thread
      03-20-2008, 03:06 AM   #1
shimshimhada
Brigadier General
shimshimhada's Avatar
United_States
442
Rep
4,838
Posts

Drives: Portal
Join Date: Jul 2005
Location: Portal

iTrader: (2)

What the current weight of your street/track car?

I thought with all my weight saving measures, that I would be pretty light compared to stock...unfortunately, I didn't get a baseline reading.

2005 BMW 330i:

After...
...replacing both stock power seats with Sparco fixed back buckets...
...mostly stripping out behind the front seats (sound deadening still on there)...
...replacing stock 18s with ltw 17s...
...replacing stock suspension with aftermarket (may have added a few pounds actually)...
...going on a diet...

...the car weighs...*drumroll please* FREAKING 3300 POUNDS!!!

Although, that's with me in the car, a full tank of gas, and the rear seats sitting in the car. I'm still trying to find ways to lose weight, but it seems like at this point, I have to either just turn the car into a complete track rat, or go superballerexpensiveparts.

What's your car's current weight and the stuff you did to cut the pounds?

Man, I'm beginning to think power is the better alternative.
Appreciate 0
      03-20-2008, 03:44 AM   #2
MrHarris
yodog
MrHarris's Avatar
United_States
197
Rep
5,025
Posts

Drives: '86 Corolla
Join Date: Jun 2007
Location: Diamond Bar, Ca

iTrader: (5)

Garage List
2009 BMW  [10.00]
3300 with you in the car isn't so bad.
Appreciate 0
      03-20-2008, 03:51 AM   #3
shimshimhada
Brigadier General
shimshimhada's Avatar
United_States
442
Rep
4,838
Posts

Drives: Portal
Join Date: Jul 2005
Location: Portal

iTrader: (2)

Quote:
Originally Posted by MrHarris View Post
3300 with you in the car isn't so bad.
Not horrible, but still heavy. If I can get it to 3000 with me+full tank, I'd be one happy camper.

Catback exhaust and some other suspension replacements might get me down to 3200.

I don't know, maybe I'll just whip out the dry ice, hammer random things, and cut random stuff out and drill holes in random places.
Appreciate 0
      03-20-2008, 07:14 AM   #4
j28s
Private First Class
17
Rep
156
Posts

Drives: 2008 335i - 6mt - Sedan
Join Date: Oct 2005
Location: US

iTrader: (0)

Damn...that's pretty light.
Mine with me (160lbs) and some crap in the trunk (probably 40lbs) is 3,835 lbs (heavy mo-fo), ah and just over a 1/4 tank of gas. I'm curious how the other 335i's are in the 3600 lb bracket...how did you do that?
LF 946 lbs = 24.6%
RF 974 lbs = 25.3%
LR 972 lbs = 25.3%
RR 943 lbs = 24.5%

Now my racecar is a lil lighter at 2116 lbs.
FL 719 lbs
RF 679 lbs
LR 365 lbs
RR 343 lbs
__________________
e90 335i - PSS9, UUC Adj Swaybars, Borla Catback, Toyo RA1, blah blah blah blah...

Racing is an addiction that can only be cured by poverty.
Background: SCCA and NASA PRO Racing
Appreciate 0
      03-20-2008, 07:36 AM   #5
shimshimhada
Brigadier General
shimshimhada's Avatar
United_States
442
Rep
4,838
Posts

Drives: Portal
Join Date: Jul 2005
Location: Portal

iTrader: (2)

Quote:
Originally Posted by j28s View Post
Damn...that's pretty light.
Mine with me (160lbs) and some crap in the trunk (probably 40lbs) is 3,835 lbs (heavy mo-fo), ah and just over a 1/4 tank of gas. I'm curious how the other 335i's are in the 3600 lb bracket...how did you do that?
LF 946 lbs = 24.6%
RF 974 lbs = 25.3%
LR 972 lbs = 25.3%
RR 943 lbs = 24.5%

Now my racecar is a lil lighter at 2116 lbs.
FL 719 lbs
RF 679 lbs
LR 365 lbs
RR 343 lbs
My car is set up so daily-driveability is basically same as stock. I don't know about E90s, but on E46s there this huge thick foam/rubber mat thing underneath the rear seats, in addition to a bunch of other stuff. I wish BMW would make a CS version of the 3.

I should probably get mine corner weighted...

Even with acid dips and crazy weight loss, I doubt my E46 can go to 2116!

What's your racecar again?
Appreciate 0
      03-20-2008, 07:43 AM   #6
j28s
Private First Class
17
Rep
156
Posts

Drives: 2008 335i - 6mt - Sedan
Join Date: Oct 2005
Location: US

iTrader: (0)

Acura Integra Type R...or Hype R.

Edited: here's a pic I have on my pc.
http://www.flickr.com/photos/24865034@N06/2347712978/
__________________
e90 335i - PSS9, UUC Adj Swaybars, Borla Catback, Toyo RA1, blah blah blah blah...

Racing is an addiction that can only be cured by poverty.
Background: SCCA and NASA PRO Racing

Last edited by j28s; 03-20-2008 at 08:01 AM..
Appreciate 0
      03-20-2008, 07:49 AM   #7
shimshimhada
Brigadier General
shimshimhada's Avatar
United_States
442
Rep
4,838
Posts

Drives: Portal
Join Date: Jul 2005
Location: Portal

iTrader: (2)

Quote:
Originally Posted by j28s View Post
Acura Integra Type R...or Hype R.
Ah, I see. Those things are already light stock!
Appreciate 0
      03-20-2008, 08:41 AM   #8
leftcoastman
Lieutenant Colonel
52
Rep
1,714
Posts

Drives: 335i
Join Date: Jan 2007
Location: Near some canyons

iTrader: (1)

3480'ish without me in the car - and 2/3 tank of gas.

E92 - full interior.
Appreciate 0
      03-20-2008, 11:31 AM   #9
j28s
Private First Class
17
Rep
156
Posts

Drives: 2008 335i - 6mt - Sedan
Join Date: Oct 2005
Location: US

iTrader: (0)

Dangggg. Guess I'm going to have to take everything out and weigh her again...maybe our dog was in the back seat...that's another 140lbs....hmmm!
__________________
e90 335i - PSS9, UUC Adj Swaybars, Borla Catback, Toyo RA1, blah blah blah blah...

Racing is an addiction that can only be cured by poverty.
Background: SCCA and NASA PRO Racing
Appreciate 0
      03-20-2008, 01:10 PM   #10
shimshimhada
Brigadier General
shimshimhada's Avatar
United_States
442
Rep
4,838
Posts

Drives: Portal
Join Date: Jul 2005
Location: Portal

iTrader: (2)

Quote:
Originally Posted by j28s View Post
Dangggg. Guess I'm going to have to take everything out and weigh her again...maybe our dog was in the back seat...that's another 140lbs....hmmm!
Your DOG is 140lbs?!
Appreciate 0
      03-20-2008, 02:08 PM   #11
Haretakis
Second Lieutenant
Haretakis's Avatar
United_States
7
Rep
257
Posts

Drives: 2007 Silver Z4 M Coupe
Join Date: Dec 2007
Location: O.C., SoCal

iTrader: (3)

Leftcoastman, what weight savings mods have you made?
Appreciate 0
      03-20-2008, 02:25 PM   #12
j28s
Private First Class
17
Rep
156
Posts

Drives: 2008 335i - 6mt - Sedan
Join Date: Oct 2005
Location: US

iTrader: (0)

Yeah...St. Bernard...only 12 months old though...bit more growing to do.
__________________
e90 335i - PSS9, UUC Adj Swaybars, Borla Catback, Toyo RA1, blah blah blah blah...

Racing is an addiction that can only be cured by poverty.
Background: SCCA and NASA PRO Racing
Appreciate 0
      03-20-2008, 04:35 PM   #13
leftcoastman
Lieutenant Colonel
52
Rep
1,714
Posts

Drives: 335i
Join Date: Jan 2007
Location: Near some canyons

iTrader: (1)

16.8 lb wheels and maybe some savings on the high flow cats.
Appreciate 0
      03-20-2008, 08:20 PM   #14
leftcoastman
Lieutenant Colonel
52
Rep
1,714
Posts

Drives: 335i
Join Date: Jan 2007
Location: Near some canyons

iTrader: (1)

Ok, here's detailed data

LF 941
RF 934
LR 865
RR 898

This is with my butt in the car.

For track use:

Camber:

LF: -3.5
RF: -3.5
LR: -2
RR: -2

Toe is zero in front and 3/16 total in the back. Caster is around 9.0 in front.

With that much camber, the outside front edges of the tires are in perfect shape.
Appreciate 0
      03-24-2008, 02:43 AM   #15
HP Autosport
Supreme Allied Commander
United_States
3843
Rep
54,362
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (36)

Quote:
Originally Posted by leftcoastman View Post
Ok, here's detailed data

LF 941
RF 934
LR 865
RR 898

This is with my butt in the car.

For track use:

Camber:

LF: -3.5
RF: -3.5
LR: -2
RR: -2

Toe is zero in front and 3/16 total in the back. Caster is around 9.0 in front.

With that much camber, the outside front edges of the tires are in perfect shape.

Which coil-overs and camber/caster plaste are you running?
Appreciate 0
Reply

Bookmarks


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 04:47 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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