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Old 06-12-2006, 10:42 PM   #1
sticrazy
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Default brace under rear seat removed...any reason to keep in installed?

My 04 Sti is going through a complete transformation, mostly power, diet, interior, and handling. As one of my weight saving mods, I removed the brace that goes across the rear seat, and those 2 smaller braces perpendicular to it. Does this affect handling at all, or is it just for crash protection? Handling doesn't feel different as all this stuff weighs in at 10 lbs!!!!!

Thoughts?
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Old 06-12-2006, 11:23 PM   #2
kennyvb
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Just don't get T-boned.
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Old 06-12-2006, 11:38 PM   #3
jasona
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10 pounds will make you how much faster?
Is it really worth it?
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Old 06-12-2006, 11:49 PM   #4
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It's to help keep your gas tank intact in a side collision. Enjoy your results. BTW there's a @5lb weight in the glove box you can remove also just be sure that your passengers don't mind having their knees wedged into the dash in a frontal accident.
Spend the extra time and strip the sound deadening if you really wanna shed pounds along with some other things that aren't detremental to overall safety.
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Old 06-13-2006, 12:01 AM   #5
sticrazy
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Is 10 pounds going to make it faster....no. But When you take into account all the power I've added, and various weight saving mods, it all adds up to 100-150 lbs that I have saved so far, maybe more. Now that WILL make it faster, handle better, etc, etc. A pound here, ten pounds there, it all adds up.

Now for the safety, I understand what you guys are saying...I'd better put it back in. Does any of you know of any weight saving mods that are out of the norm?
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Old 06-13-2006, 12:37 AM   #6
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JDM bumper beam, JDM spec c trunk, spec c roof panel (expensive mod), pulley, battery, lighter weight U brace, 2 pc rotors, CF driveshaft, stop eating, break up with girlfriend, lighter seats, remove spare from trunk and replace with can of fix a flat. That should be enough to keep you debt for the rest of you life.
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Old 06-13-2006, 12:39 AM   #7
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Quote:
Originally Posted by silver arrow
That should be enough to keep you debt for the rest of you life.
I dunno, I'm pretty sure breaking up with the girlfriend just put you back in the black.
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Old 06-13-2006, 01:02 AM   #8
silver arrow
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Quote:
Originally Posted by electricpork
I dunno, I'm pretty sure breaking up with the girlfriend just put you back in the black.
He will still be paying for sex. Doesn't matter if your spending the cash on GF or the trannies on Sunset, you're still paying.
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Old 06-13-2006, 01:24 AM   #9
sticrazy
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Very true indeed... I fortunately don't have THAT extra weight to carry around any more, . How many pounds would a CF hood take off (no scoop)? Is there really a 5 lb weight in the glovebox?

Any other CHEAPER mods...those mods will cost an arm and a leg.
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Old 06-13-2006, 01:44 AM   #10
silver arrow
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CF hood will save you very little over aluminum. Remove rear wing with trade from WRX you will probably make a few bucks, Bumper beam is $150, pulley $100, Battery $125, Remove spare free.
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Old 06-13-2006, 12:37 PM   #11
sticrazy
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Oh I'm sorry for not giving a little background: My weight savings mods are as follows thus far:

1. Power mods (lighter exhaust, downpipe, uppipe, headers, etc) 35 lbs
2. Aluminum bumper beam w/ FMIC (Removed stock one) 10 lbs w/ heavy core
3. Oddysey lightweight battery 17 lbs
4. Remove spare, jack, and tools 32 lbs
5. Remove brace under rear seat 10 lbs
6. Lighweight pulley 4 lbs
7. Weight in glovebox 2lbs

Prob a few other thinks I can't really think of off the top of my head, but that's 110 pounds, not too bad, huh? I bet my sti w/ low fluids is under 3100 lbs now!

Last edited by sticrazy; 06-15-2006 at 02:32 PM.
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Old 06-13-2006, 10:01 PM   #12
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Oy. My bugeye with heavy-@ss wheels and a 1/4 tank weighed in on two different scales at 3040. The only "lightening" I've done is install a TBE. And still it's a fat-guy-and-a-half heavier than a GC8. A bumper beam and/or some seats would be nice, but damn, how did the STi get so fat? It boggles my mind every time I see the figures.

Well hey, congrats to you. Keep it up, just dont make the car unsafe (e.g. removing the seat brace.) =P

Ben
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Old 06-13-2006, 10:24 PM   #13
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STi trans, brakes, wheels and tires, rear wing, bits and pieces for IC sprayer, slighly larger IC are all heavier. It all adds up very quickly. But mostly those STi badges and stickers weigh a ton. Remove those and it weighs 2800lbs.
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Old 06-13-2006, 10:36 PM   #14
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Quote:
Oy. My bugeye with heavy-@ss wheels and a 1/4 tank weighed in on two different scales at 3040. The only "lightening" I've done is install a TBE. And still it's a fat-guy-and-a-half heavier than a GC8. A bumper beam and/or some seats would be nice, but damn, how did the STi get so fat? It boggles my mind every time I see the figures.
All the extra weight in the STi is from the beefier parts such as the tranny- it has lighter glass and suspension arms than the WRX.
doh! got beat to the punch.
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Old 06-13-2006, 11:15 PM   #15
GotHP?
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I'm a nut about weight savings too...down to 2980 without fuel. But that grey cross brace under the seat stays. It's key for bracing and for side impacts...and it's at the center of the car and down low (best place for weight).
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Old 06-13-2006, 11:44 PM   #16
sticrazy
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2980, WOW . That's really good for an Sti. What all did you do to get it to that weight? My goal is 3000 even, that's about what a WRX weighs.
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Old 06-13-2006, 11:50 PM   #17
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mine is 3126 empty , but then again thats a stock 05

that'd be nice to shave off 200lbs even though my car is slow
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Old 06-14-2006, 12:21 AM   #18
GotHP?
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Quote:
Originally Posted by sticrazy
2980, WOW . That's really good for an Sti. What all did you do to get it to that weight? My goal is 3000 even, that's about what a WRX weighs.
Lots and lots...I had a thread around here somewhere...off the top of my head:

Invidia Ti exhaust
JDM front bumper, removed rear bumper (custom styrofoam insert)
Carbon fiber driveshaft (doesn't save a ton...)
headers, up pipe, down pipe
Braille battery, custom titanium hold down
Titanium Typhoon heat shield
all 3 pulleys
trunk gutted
2 pc aluminum front rotors
Hotchkis hollow sway bars (F/R)
still no radio...
many small bits that add up...steel weight in the glove box, steel under the center armrest, etc.

Might be forgetting something, but that's most of it I think. Last year was 3180 on a scale, I weigh 180, and had some gas in so I figured 2980 empty.
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Old 06-14-2006, 01:04 AM   #19
sticrazy
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congrats, man...I still need a little more work to get there. Seems like you have some pretty good power mods too. I can't wait to get my beast tuned.

How do you get that weight out of the glovebox and armrest?
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Old 06-14-2006, 01:20 AM   #20
kennyvb
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Quote:
Originally Posted by sticrazy
How do you get that weight out of the glovebox and armrest?
Quote:
Originally Posted by MPREZYA
BTW there's a @5lb weight in the glove box you can remove also just be sure that your passengers don't mind having their knees wedged into the dash in a frontal accident.
sounds good to me.
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Old 06-14-2006, 02:54 PM   #21
GotHP?
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Quote:
Originally Posted by sticrazy
congrats, man...I still need a little more work to get there. Seems like you have some pretty good power mods too. I can't wait to get my beast tuned.

How do you get that weight out of the glovebox and armrest?
Good power mods are the FP20g, APS inlet, TGV delete, headers...

There's a steel bar across the glove box, I think it's just there to give it a solid feel. Take the glove box (door) apart and it'll be obvious. Also under the center armrest is a stamped steel box thing to give the bottom a little strength. Not much weight there, but why not . Same thing, just start taking the armrest apart and you'll find it underneath.
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Old 06-14-2006, 03:47 PM   #22
sticrazy
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Thanks!! I've gone all out (well, minus the engine) on my setup too.

Here's my thread....

http://forums.nasioc.com/forums/show...22845#poststop
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Old 06-14-2006, 06:51 PM   #23
GotHP?
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Yes, you certainly did go all out...that plus weight savings will be fantastic...
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Old 06-14-2006, 09:00 PM   #24
sticrazy
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Oh, a little FYI, that metal piece in the glovebox weighs about two pounds. It's not that much, but stuff like that all adds up you know.
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Old 06-15-2006, 12:09 AM   #25
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Theres a big hunk of metal under the center arm-rest, unscrew the screws holding the armrest down and flip it over. You will see the metal box and black plastic stub holding it to the plastic console. Dremel or cut off that plastic tab to remove the metal box. Save about 4 more lbs that don't effect aesthetic or safety aka the right way to do a weight savings.
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