Drag Racing Tech
Sponsored by:
Sponsored by:

Extreme Weight Reduction

Thread Tools
 
Search this Thread
 
Old Sep 19, 2012 | 12:23 AM
  #1  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default Extreme Weight Reduction

Alright, I'm looking for a few ideas here. This is not your typical weight reduction thread. I've set myself a small challenge, shave 100lbs or more from the car by cutting/removing parts. EXCEPT, those parts cannot be safety related. I.e crash bars, door bars, bumper supports, air bags must all remain untouched. I daily drive my car in the summer and other people do ride with me. I am looking to pull the most out of this car, but not at the cost of safety.

That being said, I have removed the following already AC, ABS, EGR, Spare tire and jack, insulation under the carpets, insulation and vapor barrier behind the door skins, motor mount lifts, front swaybar/mounts, insulation under the hood, most of the rubber insulation on the firewall, most heat shields, and miscellaneous screws that I could do without.

I already have Qa1 shocks on all 4 corners, PA racing K frame and Lower A arms, Sphon tunnel mount torque arm (I think it's lighter because it's shorter right?)

I know I can buy light weight parts like seats, rear glass, light weight carpet, carbon fiber hood, etc. However, I would like to complete this challenge without purchasing anything

I have no clue what I currently weigh in at, but I would like to be somewhere below 3000lbs, but preferably as light as I can possibly go (while maintaining my exceptions)

The car is a hardtop v6, so I am already a few lbs lighter than most of you stock folks. But the car is the same body/frame as you all have so same techniques and rules apply.

So far I have managed to shave 7lbs, and I will be at 8.5 lbs when I remove another bracket on the weekend.

This is my progress with pictures to date and various brackets and pieces I have begun swiss cheesing

Camaro Weight Reduction

Now, who wants to toss me a few more ideas? I think I can hit 27lbs between what I already have and hole sawing the inner fenders, hood hinges, removing the plastic upper rad support and replacing with aluminum strips, hole sawing the radio antenna bracket.

Last edited by LETZRIDE; Sep 19, 2012 at 01:33 PM.
Reply
Old Sep 19, 2012 | 03:14 AM
  #2  
Avaric3's Avatar
TECH Regular
15 Year Member
iTrader: (3)
 
Joined: Nov 2008
Posts: 420
Likes: 0
From: Manalapan, NJ
Default

very interesting goal!! def will be following this and your site as well
Reply
Old Sep 19, 2012 | 04:46 AM
  #3  
WhiteLTone's Avatar
TECH Resident
20 Year Member
Photogenic
Photoriffic
iTrader: (18)
 
Joined: Oct 2004
Posts: 791
Likes: 0
From: Chicago, IL
Default

Good luck with your goal. Itll be interesting to see the results. But with out purchasing things like wheels, brakes, manual brakes, ps, hood, seats etc i think itll be tough. Not to mention using factory suspension pieces. it could be possible. My car weighed 2680 at one time with a 6pt and full interior. But since then ive added some weight back in with nitrous and safety stuff.
Reply
Old Sep 19, 2012 | 04:47 AM
  #4  
WhiteLTone's Avatar
TECH Resident
20 Year Member
Photogenic
Photoriffic
iTrader: (18)
 
Joined: Oct 2004
Posts: 791
Likes: 0
From: Chicago, IL
Default

Edit - just saw you had kmember and a-arms. It may be possible. Good luck and please post up results.
Reply
Old Sep 19, 2012 | 10:57 AM
  #5  
Mighty Whitey's Avatar
12 Second Club
 
Joined: Feb 2006
Posts: 876
Likes: 0
From: Catlettsburg, Ky
Default

Are you sure an iron block/head an aluminum intake 3.8 is lighter than an aluminum block/head ls1?

When I swapped to ls1 rear brakes, I found it possible to lose 6lbs a piece in the back rotors alone. Even more when the park brake cables/handle were removed.
Wiring... I bet there's 15lbs of wiring in these cars that's doesn't need to be there.
Reply
Old Sep 19, 2012 | 12:47 PM
  #6  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Originally Posted by Mighty Whitey
Are you sure an iron block/head an aluminum intake 3.8 is lighter than an aluminum block/head ls1?

When I swapped to ls1 rear brakes, I found it possible to lose 6lbs a piece in the back rotors alone. Even more when the park brake cables/handle were removed.
Wiring... I bet there's 15lbs of wiring in these cars that's doesn't need to be there.
Am I 100% sure the 3.8 is lighter? No. But according to this website we are http://www.bfranker.badz28.com/fbody/weights.htm

Like I said, it's not by much though. Plus who knows how accurate those weights are right?

How did you loose 6lbs on the back rotors? My parking brake cables are disconnected. I'll be pulling and removing the cables all together.

I also have plans to swiss cheese the parking brake handle/mechanism. (I'd just remove the entire thing, but the transport people could throw a **** fit if I were to ever get stopped and be missing that.

Ive finally figured out where the cruise control unit is, so I'll be yanking that hopefully this weekend.

White LTone, did you swiss cheese anything? What exactly were you cutting? Do you have a thread on what you did that I can read? I don't plan on necessarily getting into the 2xxx without buying lighter parts, I would just like to shave 100lbs before I buy that stuff, then I get twice the weight reduction
Reply
Old Sep 19, 2012 | 04:30 PM
  #7  
Mighty Whitey's Avatar
12 Second Club
 
Joined: Feb 2006
Posts: 876
Likes: 0
From: Catlettsburg, Ky
Default

I pulled the rotors and chucked them in a lathe and bore the parking brake "drum" out of the rotors, dimpled the pad surfaces, and dimpled just about everything else I could find.
Getting ready to put lightening holes in the axles flanges, and go to the front rotors and do the same dimpling on them (they are already cross drilled) probably do some lightening holes in the front hubs as well.

Something to consider, is reducing your rolling resistance were possible. I know my lt1, iron single piston front calipers sucked dick, and wouldn't allow the rotor to spin very freely, might look in to that.
The ABS and air bag system has a lot more to lose than just the bag and the abs box under the hood. There's 3 crash sensors, an extra "computer" above the driver side kick panel, and a plethora of wiring strung out all over the place.
Take your hood off bd flip it over, get a 2" hole saw and Swiss cheese the reinforcement bracing, Swiss cheese the hinges as well.
I dropped a couple pounds by cutting the center part out of te lower radiator support, and welded in a piece of 11ga metal to re attach the air Dam to.
Reply
Old Sep 19, 2012 | 04:42 PM
  #8  
senicalj4579's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (41)
 
Joined: Jan 2006
Posts: 5,260
Likes: 24
Default

You already took out the easy stuff but wont take out what most people take out. On top of that, you dont want to spend any $ on lighter parts. This should be interesting.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Sep 19, 2012 | 04:44 PM
  #9  
studderin's Avatar
TECH Senior Member
iTrader: (28)
 
Joined: Nov 2005
Posts: 5,556
Likes: 6
From: Rochester, NY
Default

Ive done a few things
Reply
Old Sep 19, 2012 | 06:44 PM
  #10  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Originally Posted by Mighty Whitey
I pulled the rotors and chucked them in a lathe and bore the parking brake "drum" out of the rotors, dimpled the pad surfaces, and dimpled just about everything else I could find.
Getting ready to put lightening holes in the axles flanges, and go to the front rotors and do the same dimpling on them (they are already cross drilled) probably do some lightening holes in the front hubs as well.

Something to consider, is reducing your rolling resistance were possible. I know my lt1, iron single piston front calipers sucked dick, and wouldn't allow the rotor to spin very freely, might look in to that.
The ABS and air bag system has a lot more to lose than just the bag and the abs box under the hood. There's 3 crash sensors, an extra "computer" above the driver side kick panel, and a plethora of wiring strung out all over the place.
Take your hood off bd flip it over, get a 2" hole saw and Swiss cheese the reinforcement bracing, Swiss cheese the hinges as well.
I dropped a couple pounds by cutting the center part out of te lower radiator support, and welded in a piece of 11ga metal to re attach the air Dam to.
Some solid ideas in here. I won't be touching the Air bags though. I do intend to swiss cheese the hinges...actually tried that this past weekend, except I tried taking off one hinge at a time and the hood snapped sideways on me. So I'll swiss them this weekend when I get a helping hand to get the hood off with me.

What else is there to the ABS?

I know exactly what you are talking about rolling resistance wise, it's almost as if my front pads are always touching the rotor a little bit. How do you change this?


You already took out the easy stuff but wont take out what most people take out. On top of that, you dont want to spend any $ on lighter parts. This should be interesting.
It's not that I don't want to spend money. I WILL be buying seats, light carpet, rear speed glass. But if I include that in this 100lb challenge it will be too easy. 40lbs in savings with seats (pair) + 20lbs from speed inc carpet + 20lbs from lightweight rear glass puts me already at 80lbs...where's the challenge in that? I wanna get this weight off and then be like...oh ya, by the way, BAM another 80lbs in weight savings

Ive done a few things
I know you have...but most have remained a secret or I just suck at finding it lol.
Reply
Old Sep 19, 2012 | 07:02 PM
  #11  
studderin's Avatar
TECH Senior Member
iTrader: (28)
 
Joined: Nov 2005
Posts: 5,556
Likes: 6
From: Rochester, NY
Default

? I posted everything in my build thread, I probably have over 75 maybe 100 pics if little things to save weight.
Reply
Old Sep 19, 2012 | 08:43 PM
  #12  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Originally Posted by studderin
? I posted everything in my build thread, I probably have over 75 maybe 100 pics if little things to save weight.
you have any links? I've actually tried searching your name a number of times and gave up trying because I couldn't find much. I mean, I did find some stuff, but very little. I got a ton of threads that said search "studderin" though lol
Reply
Old Sep 19, 2012 | 08:53 PM
  #13  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

nvm, think I found it
Reply
Old Sep 19, 2012 | 11:26 PM
  #14  
HioSSilver's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Aug 2002
Posts: 6,129
Likes: 645
From: Winchester, VA
Default

I've been working on your goal for a good while letzride. In drag mode my car is right around 3000lb.....maybe a little less with my latest parts to be installed(almost 40lb gone). It is a fully functioning dd you can drive any where with the ac on and the cruise set. I did remove the airbags but that's the only safety item removed. I still have bumber supports and rear seats/belts. I have not cut on anything welded to the car yet and I still have all but about 10lb of my sound deadening.
Reply
Old Sep 20, 2012 | 01:51 PM
  #15  
djfury05's Avatar
10 Second Club
15 Year Member
iTrader: (30)
 
Joined: Jan 2008
Posts: 3,428
Likes: 4
From: Beaufort, SC
Default

Oh cool so you removed the ABS system with keeping all the safety features in mind.
Reply
Old Sep 20, 2012 | 02:55 PM
  #16  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Not sure what you're trying to get at? As far as I am concerned abs is there to protect your "average" drivers that do not know how to properly handle their vehicle to begin with. It is a dummy system that requires users not to think and instead just react in a panick. I've driven the last 6 years without it and those included many of icy Canadian winters and I have run into several "bad" situations, non of which I couldn't handle and non of which abs would have helped me anymore than my own skill. I don't personally see abs a real safety system but more of a false sense of security
Reply
Old Sep 20, 2012 | 05:22 PM
  #17  
HioSSilver's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Aug 2002
Posts: 6,129
Likes: 645
From: Winchester, VA
Default

I love my abs....learn to USE it.....it is your friend....
Reply
Old Sep 20, 2012 | 06:47 PM
  #18  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Originally Posted by HioSSilver
I love my abs....learn to USE it.....it is your friend....
Oh I learned how to use it effectively...Saved me about 15lbs off the nose, let me readjust my brake bias...and let me tell you, when I almost crushed a deer last year, I may have flat spotted a front tire, but there is absolutely no possible way that you could ever convince me that I could stop faster. I'll tell you for a fact that a family members 2008 lexus IS350 would not have stopped faster that night. You know how good our lighting system is, imagine coming up on a deer doing almost 90 and seeing him materialize in your headlights (he was already standing there) and being able to go from 90-0 and have a body of space between you and that deer. I surprised myself at how fast the car came to a halt.

Besides all that, I have a ford 8.8 rear end in the car now, ABS isn't an option regardless.

Anyways, back on topic. I have a few pics I'm going to post shortly that I have a few questions on.
Reply
Old Sep 20, 2012 | 07:38 PM
  #19  
LETZRIDE's Avatar
Thread Starter
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Questions! questions! questions!

where the heck is birdofprey didn't he strip one of these down to nothing?

Two pictures here folks.



1) In the Red is a metal bracket of some sort that I would like to put holes in. What is it? is this part of the crash support? bumper support? or is this a bracket pertaining to the latch of the hood? There appears to be two pieces to the bracket? Please advise on what these are and their function



Extreme Weight Reduction-question-1.jpg


2) In the red appears to be extra metal and possibly how my wheel well is being held together. Is this infact excess metal that can be cut away? or will cutting this result in my cars wheel well opening up on me?

Further to the back of this in red is part of a metal wall that is coming across from where the speakers are, is this support for something (kind of a crash support that distributes side impact in any way? or can I hole this out?

Extreme Weight Reduction-question-2.jpg
Reply
Old Sep 20, 2012 | 08:01 PM
  #20  
senicalj4579's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (41)
 
Joined: Jan 2006
Posts: 5,260
Likes: 24
Default

Originally Posted by LETZRIDE
Some solid ideas in here. I won't be touching the Air bags though. I do intend to swiss cheese the hinges...actually tried that this past weekend, except I tried taking off one hinge at a time and the hood snapped sideways on me. So I'll swiss them this weekend when I get a helping hand to get the hood off with me.

What else is there to the ABS?

I know exactly what you are talking about rolling resistance wise, it's almost as if my front pads are always touching the rotor a little bit. How do you change this?




It's not that I don't want to spend money. I WILL be buying seats, light carpet, rear speed glass. But if I include that in this 100lb challenge it will be too easy. 40lbs in savings with seats (pair) + 20lbs from speed inc carpet + 20lbs from lightweight rear glass puts me already at 80lbs...where's the challenge in that? I wanna get this weight off and then be like...oh ya, by the way, BAM another 80lbs in weight savings



I know you have...but most have remained a secret or I just suck at finding it lol.


There you go man I understand that. Looking forward to seeing your progress
Reply



All times are GMT -5. The time now is 11:11 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE