| JUNSube | 01-22-2002 09:45 PM |
My car went on a diet and actually lost weight
First, as a disclaimer, let me tell you before actually beginning to take all the sound deadening out of your car think about the consequences, like the week of agony taking the friggin stuff out for one.
Anyway, I spent about 3 days taking all the sound deadening "tar" out of my Impreza this weekend. Let me just tell you, there is a lot of sound deadening in a Subaru. It's everywhere, and on an 7 year old car it's not easy to get out. But that said it also cut (with the spare tire and interior trunk panneling) around 100lbs off of the car. I weighed it before at the weighstation up the road (don't know if it's legal to do that or not, so if it's not....shhhh;) Initially it weighed in at 2600lbs (ALOT lighter than a WRX) now it weighs 2500lbs. Now I have to figure out how to take more weight off it (out comes the hole saw hehe:) Anyway anybody else even think about this or have any suggestions. To tell you the truth with the carpet still in it, it's not that loud, other than the N1 exhaust.
Aron
Anyway, I spent about 3 days taking all the sound deadening "tar" out of my Impreza this weekend. Let me just tell you, there is a lot of sound deadening in a Subaru. It's everywhere, and on an 7 year old car it's not easy to get out. But that said it also cut (with the spare tire and interior trunk panneling) around 100lbs off of the car. I weighed it before at the weighstation up the road (don't know if it's legal to do that or not, so if it's not....shhhh;) Initially it weighed in at 2600lbs (ALOT lighter than a WRX) now it weighs 2500lbs. Now I have to figure out how to take more weight off it (out comes the hole saw hehe:) Anyway anybody else even think about this or have any suggestions. To tell you the truth with the carpet still in it, it's not that loud, other than the N1 exhaust.
Aron
| Evan J. Kelly | 01-22-2002 11:41 PM |
I second that whole statement.
I ended up gutting my entire car as well.
I ended up gutting my entire car as well.
| Kostamojen | 01-23-2002 03:04 AM |
I need to do this... that sound deadening tar junk has melted the trunk liner! :eek:
What do I need chemical wise?
What do I need chemical wise?
| cardin555 | 01-23-2002 03:45 PM |
Have you guys thought about aluminium hood and trunk lids. I also heard that there are lightweight front and rear bumber reinforcements as I know the stock one are like lead.
Erik
Erik
| JUNSube | 01-23-2002 04:15 PM |
Kostamojen: You need only a heat gun, a hammer, chishel, and a good scrapper. Then just heat it up and scrape and chip away at it. Just be prepared for some work.
I plan on getting a carbon fiber hood. I have the front lightweight reinforcement bar on the car, so right now, I have a feeling the hole saw is going to come out and be taken to the rear doors hehehe. Probably should wait till I get a rollcage
I plan on getting a carbon fiber hood. I have the front lightweight reinforcement bar on the car, so right now, I have a feeling the hole saw is going to come out and be taken to the rear doors hehehe. Probably should wait till I get a rollcage
| Kostamojen | 01-24-2002 03:45 AM |
Well my hood is pretty darn light compaired to an RS hood for some reason...
Anyway, MPREZYA had the lightweight bumpers put on his 2.2 converison L, along with a lightweight clutch and flywheel, and a couple other things, and got down to like 2450lbs... I dont think he did the sound deadening removal, which means the car could get down to the 2300 range! (WITH AWD) :eek:
Anyway, MPREZYA had the lightweight bumpers put on his 2.2 converison L, along with a lightweight clutch and flywheel, and a couple other things, and got down to like 2450lbs... I dont think he did the sound deadening removal, which means the car could get down to the 2300 range! (WITH AWD) :eek:
| dead-eye | 01-24-2002 02:20 PM |
Anyone replace the sound deadening material with Dynamat Extreme? I was wondering how much the Dynamat would weigh if applied to the floor, doors and trunk.
| Evan J. Kelly | 01-24-2002 02:37 PM |
[QUOTE][i]Originally posted by JUNSube [/i]
[B]Probably should wait till I get a rollcage [/B][/QUOTE]
I'm not doing any more until I get a roll cage.
No Lightweight bumper reinforcement for me... Thats what makes our cars US crash-worthy.
Dynamat is soo- heavy! Probably alot more than the stock stuff.
Plus, you'd end up spending 1000 dollars alone on dynamatting your car.
My car is at an estimated 2400-2500 pounds right now... With all stock parts! my interior is completely baren. I took everything out.
[B]Probably should wait till I get a rollcage [/B][/QUOTE]
I'm not doing any more until I get a roll cage.
No Lightweight bumper reinforcement for me... Thats what makes our cars US crash-worthy.
Dynamat is soo- heavy! Probably alot more than the stock stuff.
Plus, you'd end up spending 1000 dollars alone on dynamatting your car.
My car is at an estimated 2400-2500 pounds right now... With all stock parts! my interior is completely baren. I took everything out.
| DoinkMobb | 01-24-2002 06:12 PM |
JUNSube - where does one get a heat gun? Can you rent one from Home Depot or someplace like that? Did you have to take out all the carpet and the seats to get to everything?
Evan J. Kelly - do you have any pics of your interior?
I was thinking about gutting my car, but I'm not sure if I could deal with bare metal everywhere...then again, I could pretend I'm driving a rally car. I'd have to keep the radio and the rear speakers, plus the passenger seat, at least.
The curb weight on my car is supposed to be 2400 lbs. (I have the bare bones FWD model). I figure if I took off 100-200 lbs, it'd make somewhat of a difference.
Evan J. Kelly - do you have any pics of your interior?
I was thinking about gutting my car, but I'm not sure if I could deal with bare metal everywhere...then again, I could pretend I'm driving a rally car. I'd have to keep the radio and the rear speakers, plus the passenger seat, at least.
The curb weight on my car is supposed to be 2400 lbs. (I have the bare bones FWD model). I figure if I took off 100-200 lbs, it'd make somewhat of a difference.
| JUNSube | 01-24-2002 09:07 PM |
I think you can get heat guns at home depots and the like, I'm not sure. If all else fails, try asking a decal or upholstery shop where they get theres. I inherited mine from my room mate who was a car radio installer when he moved. Yeah I had to take everything out of the car, all the way up to the dash. Be prepared to spend a lot of time vacuuming excess dust and what not, (so have a shop vac). If I took out a lot more of the interior stuff, gutted the rear doors and went to the lighter body components I could probably be in the realm of 2300 or so. We'll see. The roll cage adds weight though. Once I get my engine swap done, talk about dust WRX's. Same motor, 650lbs less weight to haul.
Aron
Aron
| DoinkMobb | 01-24-2002 10:32 PM |
Hmmm...reducing the weight of my car by 200 lbs. would have the same effect as adding 10 HP, according to my calculations.
I'm figuring this because:
2400 lbs - 200 = 2200 lbs
2200 lbs/ 110 HP = 20:1 wt/pwr
adding 10 HP will give me the same wt/pwr ratio
2400/120 = 20:1
But I guess it's sorta like getting 10 HP for FREE, which is always good. My ultimate goal for the car is a 10:1 wt/pwr ratio. I figure 220 HP in a 2200 lb car will get me where I want to go fast enough.
I'm figuring this because:
2400 lbs - 200 = 2200 lbs
2200 lbs/ 110 HP = 20:1 wt/pwr
adding 10 HP will give me the same wt/pwr ratio
2400/120 = 20:1
But I guess it's sorta like getting 10 HP for FREE, which is always good. My ultimate goal for the car is a 10:1 wt/pwr ratio. I figure 220 HP in a 2200 lb car will get me where I want to go fast enough.
| JaiMak | 01-24-2002 11:41 PM |
Don't forget, the less weight, the less work for the brakes, the less work for the tires and suspension during cornering, therefor higher cornering and braking limits..
| Verist | 01-25-2002 01:12 AM |
Get lightweight rims.. from what I have heard, for every pound of unsprung weight you save is like taking 3-5lbs off some place else. If you can save 5lbs a corner, it could end up in "100lbs" savings.
Regan-
Regan-
| Kostamojen | 01-25-2002 03:02 AM |
Ya, but those lightweight rims cost half as much as my car did! :lol:
Dont forget those carbon fiber driveshafts, a lightweight suspension, and even removing the spare tire/jack and water from your windshield washers car all get you some weight :)
Dont forget those carbon fiber driveshafts, a lightweight suspension, and even removing the spare tire/jack and water from your windshield washers car all get you some weight :)
| philioWRXman | 01-25-2002 01:14 PM |
umm all i can think of is go big and take out the air conditioner and rear seats.
| ImprezedRS | 01-25-2002 01:31 PM |
I'm planning on removing my AC my self but not sure yet but I also want to gut out my car. So far I have remove all of the trunk and sound deadning and weight in glove compartment lid. I plan on gutting the interior soon, as I don't really care for it anyways since my interior looks like **** already.
I got both front and rear light weight beams and there are scary looking when compared to the stock beams. A good comparison would be Stock beam=phone book and Lightweight beam=single sheet of paper.
I got both front and rear light weight beams and there are scary looking when compared to the stock beams. A good comparison would be Stock beam=phone book and Lightweight beam=single sheet of paper.
| Jonnathan | 01-30-2002 12:16 AM |
Ideas.... some more crazy than others
the front and rear inner bumpers (about $115 each) save you 35 lbs each ! right at the ends of the car...big difference.
Add in aluminum hood, and that totals about 100 lbs or so
you can get them from Mike at [url]http://www.spdusa.com/products.htm[/url]
get lightweight aftermarket seats, (those stock front seats are heaaaavy)
get an aircraft battery, (lighter than car batteries)
Lose the spare tire and get a can of fix-a-flat and AAA instead.
aluminum control arms, hood & trunk lid ?...(expensive)
Get manual windows if you have electric...
lose cruise control if you have it...
take the motor out of the sunroof...if you have one
get light weight underdrive pulley...also gives you bit extra HP (3-5)
Get a racing steering wheel, not sure if its legal to remove the airbag though ? hmmmm
de-badge the car :lol:
the front and rear inner bumpers (about $115 each) save you 35 lbs each ! right at the ends of the car...big difference.
Add in aluminum hood, and that totals about 100 lbs or so
you can get them from Mike at [url]http://www.spdusa.com/products.htm[/url]
get lightweight aftermarket seats, (those stock front seats are heaaaavy)
get an aircraft battery, (lighter than car batteries)
Lose the spare tire and get a can of fix-a-flat and AAA instead.
aluminum control arms, hood & trunk lid ?...(expensive)
Get manual windows if you have electric...
lose cruise control if you have it...
take the motor out of the sunroof...if you have one
get light weight underdrive pulley...also gives you bit extra HP (3-5)
Get a racing steering wheel, not sure if its legal to remove the airbag though ? hmmmm
de-badge the car :lol:
| wistful | 01-30-2002 12:37 AM |
i'm not sure if the alum. control arms are any lighter than stock. *shrug*
if you are gettin that serious.. thinner front windshield, and plexiglass everywhere else? Recaro SPG seats for both front people, titanium exhaust/piping. Remove the spoiler, and don't get a hoodscoop. Just a flat CF hood with the two front vents. Remove the front fog lights (assuming you have a RS bumper) and just put light covers on.
sweet jesus this thing could be sick.
Don
if you are gettin that serious.. thinner front windshield, and plexiglass everywhere else? Recaro SPG seats for both front people, titanium exhaust/piping. Remove the spoiler, and don't get a hoodscoop. Just a flat CF hood with the two front vents. Remove the front fog lights (assuming you have a RS bumper) and just put light covers on.
sweet jesus this thing could be sick.
Don
| Kostamojen | 01-30-2002 03:04 AM |
I think our windshields are already thin enough :p (thats why they break so easy)
Dont forget the lightweight wheels! Theres also that dash beam thats freakin heavy, and you could remove most of the dash while your at it too :D
You know, I would do all this stuff if I had the money and this wasnt my only car :p
I would even stick in a 2.2 or 2.5 just for some power without much increase in weight :)
Dont forget the lightweight wheels! Theres also that dash beam thats freakin heavy, and you could remove most of the dash while your at it too :D
You know, I would do all this stuff if I had the money and this wasnt my only car :p
I would even stick in a 2.2 or 2.5 just for some power without much increase in weight :)
| ImprezedRS | 01-30-2002 11:02 AM |
Well I did it, I gutted it out, no its time to remove the sound deadning material. I'm also having the sunroof welded up and ordering the Roof Scoop and vent friday, and then comes out the ac.
Switching to manual windows from power windows isn't worth it since they weigh about the same. Manual windows have more mechanical stuff and maybe even weigh more. Aluminum trunk lid is about 1 pound lighter than stock since it has more bracing than the stock. Aluminum control arms weigh the same or more, there made to hold up better than the stock not to be lighter.
There is also a beam under the back seat for a side impact collision thats pretty heavy also, same use as the big one in the dash. Also 2 metal beams in each door for side impacts.
The sunroof unit itself weighs roughly 30-40 pounds.
Switching to manual windows from power windows isn't worth it since they weigh about the same. Manual windows have more mechanical stuff and maybe even weigh more. Aluminum trunk lid is about 1 pound lighter than stock since it has more bracing than the stock. Aluminum control arms weigh the same or more, there made to hold up better than the stock not to be lighter.
There is also a beam under the back seat for a side impact collision thats pretty heavy also, same use as the big one in the dash. Also 2 metal beams in each door for side impacts.
The sunroof unit itself weighs roughly 30-40 pounds.
| Evan J. Kelly | 01-30-2002 03:05 PM |
[QUOTE][i]Originally posted by DoinkMobb [/i]
[B]Evan J. Kelly - do you have any pics of your interior?
I was thinking about gutting my car, but I'm not sure if I could deal with bare metal everywhere...then again, I could pretend I'm driving a rally car. I'd have to keep the radio and the rear speakers, plus the passenger seat, at least. [/B][/QUOTE]
Thats my exact setup right now. I just painted the bare metal, gold on the bottom, and blue on the sides and top. Turned out to be the exact ways the rally cars come too. Coincidence.
I got pics coming soon.
[B]Evan J. Kelly - do you have any pics of your interior?
I was thinking about gutting my car, but I'm not sure if I could deal with bare metal everywhere...then again, I could pretend I'm driving a rally car. I'd have to keep the radio and the rear speakers, plus the passenger seat, at least. [/B][/QUOTE]
Thats my exact setup right now. I just painted the bare metal, gold on the bottom, and blue on the sides and top. Turned out to be the exact ways the rally cars come too. Coincidence.
I got pics coming soon.
| DoinkMobb | 01-30-2002 05:35 PM |
I just jacked up my interior last night stuffing a stand for a 44 gal pentagon tank in my backseat. Actually, I think I did more damage taking it out. I was kinda annoyed at first but then I figured I could just rip everything out and no one would know the difference. I'm not sure if my GF would appreciate riding in a car with no sound proofing or carpet or anything. But hey, it's my car.
Hmmm, weight reduction stage 1. I can truly live out my Gran Turismo fantasies now...excellent.
About ripping out beams that are meant to protect you in a crash - do you think that's such a good idea? I mean, you might lighten your car, but you're making it less safe at the same time. And if you were hurt in an accident and your insurance company found out you removed pieces of the car meant to protect you, would they still pay for your medical bills? Removing carpet is one thing, steel beams meant to keep you from dying are another.
Hmmm, weight reduction stage 1. I can truly live out my Gran Turismo fantasies now...excellent.
About ripping out beams that are meant to protect you in a crash - do you think that's such a good idea? I mean, you might lighten your car, but you're making it less safe at the same time. And if you were hurt in an accident and your insurance company found out you removed pieces of the car meant to protect you, would they still pay for your medical bills? Removing carpet is one thing, steel beams meant to keep you from dying are another.
| philioWRXman | 01-31-2002 11:11 AM |
i dunno about the insurance company, but keep the safety beams, and if your that worried, think about a interior cage roll bar assembly
| Jonnathan | 01-31-2002 02:54 PM |
hmmm, how much does a typical roll cage weight ?
cow much cost to buy & fit one ?
cow much cost to buy & fit one ?
| mrbell | 01-31-2002 09:55 PM |
also, I'm sure those beams help w/ the rigidity of the chassis... maybe not a lot, but I'd bet it does something...
| Kostamojen | 02-01-2002 02:17 AM |
Well ya, dont take out support beams unless your staying off the street. (AKA a track car, which is my goal one day for this car to be... but until then, its staying reasonable)
| DoinkMobb | 02-01-2002 01:49 PM |
I was asking a friend of mine what he thought about me taking out the interior of my car and he made a face, like he thought I was nuts. Then he said, "wouldn't it get hot in there? You have nothing between you and the hot bare metal."
I was thinking maybe he's right. The carpet and the material on the ceiling must do something to keep some of the heat out. Plus, it would suck if I accidentally touched the bare metal and got like a 3rd degree burn or something. Anything that keeps the heat out of my car is GOOD, especially since I live in Tampa.
I was thinking maybe he's right. The carpet and the material on the ceiling must do something to keep some of the heat out. Plus, it would suck if I accidentally touched the bare metal and got like a 3rd degree burn or something. Anything that keeps the heat out of my car is GOOD, especially since I live in Tampa.
| -JB- | 02-01-2002 02:04 PM |
Although I don't have experiance with a gutted impreza, I did take a ride around a track in a gutted (and mind-numbing) RX7, and almost seared my leg on the bear metal.. Just thought I'd chime in.
| Kostamojen | 02-02-2002 03:05 AM |
Open your windows when its hot, turn on the heater when its cold :p
| MagicMT | 02-02-2002 03:28 AM |
[QUOTE][i]Originally posted by ImprezedRS [/i]
[B]There is also a beam under the back seat for a side impact collision thats pretty heavy also, [/B][/QUOTE]
I don't think that bar behind the back seat would really do any good in a collision. Have you ever taken it out? It's not heavy! Maybe a few pounds, less than 5 max. I think all it does it keep the rear passengers from going into the trunk, something to lean on. Anyone know how much the cruise control weighs? I never ever use it.
Mike
[B]There is also a beam under the back seat for a side impact collision thats pretty heavy also, [/B][/QUOTE]
I don't think that bar behind the back seat would really do any good in a collision. Have you ever taken it out? It's not heavy! Maybe a few pounds, less than 5 max. I think all it does it keep the rear passengers from going into the trunk, something to lean on. Anyone know how much the cruise control weighs? I never ever use it.
Mike
| Kostamojen | 02-02-2002 03:46 AM |
[QUOTE][i]Originally posted by MagicMT [/i]
[B]
I don't think that bar behind the back seat would really do any good in a collision. Have you ever taken it out? It's not heavy! Maybe a few pounds, less than 5 max. I think all it does it keep the rear passengers from going into the trunk, something to lean on. Anyone know how much the cruise control weighs? I never ever use it.
Mike [/B][/QUOTE]
I think theres another one actually under the seat...
[B]
I don't think that bar behind the back seat would really do any good in a collision. Have you ever taken it out? It's not heavy! Maybe a few pounds, less than 5 max. I think all it does it keep the rear passengers from going into the trunk, something to lean on. Anyone know how much the cruise control weighs? I never ever use it.
Mike [/B][/QUOTE]
I think theres another one actually under the seat...
| MagicMT | 02-02-2002 01:24 PM |
Oh that one..
Mike
Mike
| DoinkMobb | 02-02-2002 09:44 PM |
Yeah there's a bar under the rear passenger seat. I noticed it today when I took up the rear cushion to clean under there. I was going to take it out cause I didn't see any point for it being there but then I figured maybe it would decrease the rigidity of the car somewhat if I took it out. What do you think, does it do much besides provide support for passengers while they're back there?
Also, while I had the seat up I noticed all that sound deadening material. There's a lot under there, about 1/4" thick too. I managed to scrape up a few good sized chunks with just a screwdriver, but I couldn't imagine how long it would take de-tarring the whole car.
Also, while I had the seat up I noticed all that sound deadening material. There's a lot under there, about 1/4" thick too. I managed to scrape up a few good sized chunks with just a screwdriver, but I couldn't imagine how long it would take de-tarring the whole car.
| Kostamojen | 02-03-2002 03:01 AM |
Heres some interior shots from Subiegals project rally car showing some of the material and bars and stuff...
[url]http://www.subiegal.com/SGRacing/SGRacing.htm[/url]
[url]http://www.subiegal.com/SGRacing/SGRacing.htm[/url]
| MagicMT | 02-03-2002 12:07 PM |
Here's Teagues project car. Anyone know why they would weld the front clip on? :confused: Isn't the frame exactly the same? I would think that the frame is less structurally rigid now...
[URL]http://home.att.net/~teaguesauto/impreza.htm[/URL]
Mike
[URL]http://home.att.net/~teaguesauto/impreza.htm[/URL]
Mike
| ImprezedRS | 02-04-2002 11:04 AM |
Teagues project car was a wrecked car, hit in the front, they welded on a front clip from a nother wrecked car. If done right it should have rigidity as before the accident.
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