Gold Standard of Weight Reduction - E90 on a Diet

  • Login or Register, members don't see Ads!
  • Tip: You can toggle the Dark Theme at the bottom of the page

SJ_1989

Sergeant
Aug 7, 2018
309
Illinoisssss
So the time has come to start weighing the car since round 1 of fab work is now complete! I thought 2700 lbs race weight without a driver was a bold goal when Efab Motorsports and I started down this path of extreme weight reduction. I think it is very possible this is the lightest E90 that exists that's not a tube chassis (not sure if one even exists either). I'm blown away by how much weight we were able to take out!

As of now, the car weighs 2375 lbs!

DISCLAIMER: This isn't the final race weight. The car was weighed in the following configuration, however, everything else that should be on the car is on the car besides what's listed below:

Excludes:
  • Front and rear doors (not gutted with glass)
  • Front windshield
  • Electronics (will be minimal)
  • Front fenders
Still includes:
  • Non-run flat rear tires
  • OEM rear wheels
  • Front and rear crash bars
I really think 2550 lbs race weight is achievable. What's even more crazy is there are still areas where we can cut weight! Can't wait to start racing this car, it's going to haul some ass.

PSX_20191114_201919-L.jpg


PSX_20191114_201855-L.jpg
 

SJ_1989

Sergeant
Aug 7, 2018
309
Illinoisssss
I mentioned 2550 lbs race weight is achievable and it most definitely is. This is essentially race weight and it's sitting at 2570 lbs. Already got it planned to go back for round 2 of weight reduction next year to get it to 2500 lbs.

Keep in mind this is still a unibody IRS car with factory body panels and a 10 point cage :) .

PSX_20191117_195023-L.jpg


PSX_20191117_194807-L.jpg
 

ShocknAwe

Lieutenant
Jan 24, 2018
880
SC
You have a thread on what you did to get to this point or is it literally gutted, no dash, and with all accessories ripped out?
 

SJ_1989

Sergeant
Aug 7, 2018
309
Illinoisssss
You have a thread on what you did to get to this point or is it literally gutted, no dash, and with all accessories ripped out?
Build thread is here but it's completely gutted with an aluminum dash and seat. If it wasn't needed it was deleted for the most part. Still some weight I can take out though still.
 

bantam

Corporal
Nov 20, 2017
102
Thats some pretty extreme weight savings, great job!

Do you happen to know the weight of the e90 steel fenders?
 

Glassreflectionzn54

Specialist
Aug 7, 2019
67
Do not gut the E92 do not gut the E92....
Why?? Mine is gutted at 3080 pounds as it's at. Bucket seat and race light battery and sunroof delete and couple minor things like sound deadening left. Another 120 pounds. Carbon fiber hood and rear crash bar another 60 pounds or so. So 2900 or so
 
  • 1Like
Reactions: Torgus

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Top