Official Component Weights & Weight Reduction Thread

[autoCAR]

Originally Posted by illmatic

Has anyone weighed the OEM front bumper beam vs the Beatrush beam?

beatrush front is 9.6 lbs
beatrush rear is 6 lbs

[autoCAR]

trd chassis brace kit, complete

(minus bolts, since they replace existing bolts, just are a bit longer to accommodate the braces)

scale weighs in .2lbs incraments.

[diss7]

I finally bought some uber accurate scales, so I've started weighing things. Here's the first lot of stuff I've taken out. Minimal tools/effort/time taken. 20kgs in 20 minutes

All weights are metric. (kg) Car is NZDM 86 spec (Non GT), which is a lighter version than US spec - which is similar is to NZDM GT86. (Non GT has lighter wheels, seats, brakes, different interior etc etc) So, some of the parts I have may be different to US spec cars. Anyway...

Before I stripped, I weighed car...

1194kg with 1/4 tank of gas. So, Toyota NZ's claim of 1180kg is pretty bang on.

Stripping time...

Boot floor panel

1.231



Boot internal side linings

0.403


0.417



Boot rear centre trim

0.313



Centre foam tyre well insert

0.570



Side foam insert

0.182


0.173



Jack + Handle + 2 tow hooks + wheel brace + screwdriver

3.105



Rear seat back

6.969



Tyre repair kit

1.351



Rear seat cushion

1.893


1.867



3rd brake light - detachable part only, not incl. base

0.196



Rear seat belt receivers (both) incl. bolts

0.308



Brackets found under rear seat cushions, assume for child seat?
0.285



Bonnet/hood lining

0.456



Owners manual/service folder

0.903



Rear floor mats (both)

0.368


Total removed 20.990



Some other stuff I had laying around




Bride Low Max bucket seat - fake - seat only, no brackets

5.830



Bride Low Max bucket seat - genuine - seat only, no brackets
5.527



205/40/17 Achilles 123 Semi slick - new

7.986



205/40/17 Ling Long Crosswind - 90% tread

8.850

[jm1681]

Not so much a weight reduction as a balancing act, but has anyone moved their battery to the trunk yet? Even if you're only running a 5lb battery, 5lbs out back is better than 5lbs on the nose.

[Anthony]

I got a 3 pound battery. I don't think the extra cable would warrant the move. But yeah, if you're more concerned about balance than overall weight reduction, then moving the factory battery to the back would be a great idea.

[my name is joe]

The battery in between the two axles is the better way to balance the car. Most guys mount the battery behind where the passenger seat used to be.

[ProjectD]

Originally Posted by Anthony

Car: 2,751lbs
(Based on complete BRZ Premium MT with full tank of gas)


Exterior

--Wheels, Tires, Nuts-- [Unsprung weight]

Wheels
41.40lbs - OEM + tires (Source)
20.10lbs - OEM (Source)
For aftermarket weights, just go here.

Lug nuts (x5)
0.590lbs | 267.6g - Muteki SR48 (Source)
0.440lbs | 199.5g - Muteki SR35 (Source)
0.410lbs | 185.9g - Gorilla Chrome Tuner (Source)
0.275lbs | 124.7g - OEM (Source) (Additional Source)
0.250lbs | 113.3g - Rays Engineering (Source)
0.250lbs | 113.3g - VMS Racing (Source)
0.202lbs | 092.0g - CSG aluminum (Source)
0.144lbs | 065.3g - Gorilla forged aluminum (Source)




[/COLOR][/SIZE]Suspension & Bracing

Very Nice! Exactly what I was looking for. Thanks for this.

[Anthony]

Originally Posted by Anthony

The mirrors themselves are STUPIDLY light. The bases are disappointingly heavy though.

I've only got one installed so far, and I can definitely say these mirrors are not photogenic. In other words, they look great in person. Much better than what I'd expected. I thought they were going to look too small, but not at all.

0.2750lbs - APR mirror itself
1.0875lbs - APR mirror + supplied hardware
2.1250lbs - OEM mirror + hardware

1.0375lbs of weight saved per side

Note that I didn't weigh the rubber gasket thing because I left it on the car. You will definitely want to do the same, unless you're 100% certain you'll never drive in the rain. Otherwise you'd definitely get water inside of your door where it would collect.

[TheLaughingMan]

For the guys that did the 3 lb battery, did you just put together a custom tray and tie downs or what? Is there a kit? I've been looking but only found an 11 lb kit

[Anthony]

Mine will be custom.

[Dustin]

Front Springs - 1306g = 2.88 lbs





Rear Springs - 1162g = 2.56 lbs

[TheLaughingMan]

Originally Posted by Anthony

Mine will be custom.

Are you going to do a DIY guide when you're done?

I would really appreciate it and I'm sure other members would too

[Anthony]

Originally Posted by TheLaughingMan

Are you going to do a DIY guide when you're done?

I would really appreciate it and I'm sure other members would too

Depends. If all works out as planned, it's going to be the most pain-in-the-ass thing ever, and I will just sell the solution I'm conjuring. But if it turns out to be really easy, then yeah. Totally DIY-threading that shit.

That still a ways away though. Still need to fix my driveshaft and final drive situation...

[Anthony]

Originally Posted by TheLaughingMan

Are you going to do a DIY guide when you're done?

I would really appreciate it and I'm sure other members would too

Originally Posted by Anthony

Depends. If all works out as planned, it's going to be the most pain-in-the-ass thing ever, and I will just sell the solution I'm conjuring. But if it turns out to be really easy, then yeah. Totally DIY-threading that shit.

That still a ways away though. Still need to fix my driveshaft and final drive situation...

HAHAHAHAHA! I'm so drunk right now. I thought this was the diffuser thread.

Yes, I'll make a DIY for the battery tray solution, but... spoiler alert... I'm just going to drill some holes in my firewall and zip tie that bitch to the firewall. The end.

LOL but my diffuser is going to be absurdly complex. Excuse my drunkeness. I don't know where I live right now.