I would like to know the best ways to reduce weight, and the weights of the following items if anyone knows how much they weight.

1.Front Seats
2.Rear Seats
3.Spare Tire

Thanks.

spare tires weights about 20lbs.

the backseats probably weight the most out of the three.

The stock battery weighs about 40lbs.
You can find aftermarket ones that weight 13.5

don't forget the gas tank. It holds 12gallons. Doesn't gas weigh 4 or 5lbs a gallon? Just leave 2-3 gallons in =instant weight reduction of 40-50lbs. Enjoy

front seats.. 35-40 lbs each
rear seat, complete, 75 lbs

believe me, i've weighed em :) and they're all out of the car

Tamago, is this your daily driver? Are you thinking about doing a relocated braille lightweight battery?

it is my D.D. and i will be mounting an optima redtop back by the spare tire, under the car

Hey Joel,
I've taken the rear seat cushions out, but I haven't investigated on how to take out the backings of the seats. How are they fastened?

Thanks

I can't take most stuff out of may car and keep my Class but I am going to replace my seats and battry, Figure that would be good for at least 80 lbs. That should make up for all those twinkies I eat.

Gasoline Density is ~8.2 or so lbs/gal so yea, instant weight savings

~tesh

Hey Joel,
I've taken the rear seat cushions out, but I haven't investigated on how to take out the backings of the seats. How are they fastened?

Thanks

2 12 mm bolts per seatback.. total time to remove, 5 minutes?

then there's a bar that runs along the floor that supports the seat-back.. i have to leave that in til i get my harness bar built... it's where my 4pt hooks :(

I can't take most stuff out of may car and keep my Class but I am going to replace my seats and battry, Figure that would be good for at least 80 lbs. That should make up for all those twinkies I eat.

there is no SCCA mandate against removing your rear seats, just FYI.. are you running stock class?

i'm looking forward to take out the back seats for more space.

I'm in STS, It allows Driver and passenger seat replacement. However rear seat has to stay.

wtf are you doing in STS? GET OUT OF THERE!!!!

are you running race tires or something?

STS is Street tire only. Only a 1 sec(average) Difference between STS and FSP 1st. place, So I'm not feeling any pressure or loss. Actually once I get finished with my setup I figure I'll be pretty competitive.

what exactly is your setup? why kick yourself in the foot by trying to keep up with Civic SI's mini cooper S's (which you'll NEVER do) ? hey, if you want to place 4th, 5th, 7th at the end of the season, more power to you..

i prefer to run against cars similar to me in power..

good luck!

Mostly I face preludes, and Civic's all the Mini's Dominate HS and GS.
Either way STS is really the lowest class you can have a bodykit in too :)
If I wanted to class first I would buy a Mini. I just run for fun. :)

i don't know where you've been reading, but FSP allows bodykits.. oh crap.. not sideskirts.. but your car has sideskirts stock, so i'm sure you won't get flack for that..

http://www.scca.org/_filelibrary/File/2005SoloRules.pdf

it's 10 megs, so download with caution...

i know you run for fun, but you really should just move over to FSP.. :)

Heh, I've got a hardcopy of the rules.

Sorry for the Hijack. Moved this to PM's

So, is it safe to say that by purchasing a light battery, say, 15 lbs, and removing rear seats, 75 pounds, you would get rid of about 100 pounds?

Is a full tank of gas factored into the "2340" lb's or a stock xA or is that dry weight?

you would be correct.. throw out that passenger seat too :):)

Haha, I cant' get rid of that one. I need my car to at least seat another person.

I rarely if ever seat people in the back, however.

Only thing I'm worried about is if my car would look goofy, with 4 doors, and 2 seats..haha

Get Aftermarket seats for the front and Perhaps find a way to cover where the back seat should be..

just took out the back seats today, maybe weight about 30lbs all together.

Best (in my opinion) for weight reduction is carbon fiber. Although expensive, you're combining show with weight loss! They make several different CF products for the XB and quite a few for the Xa. TC stuff is just starting to appear.

Rear seats - 60lbs (ish)
Front seats - 35lbs (ish)
Spare tire - 20lbs

Have fun! cya

A good aftermarket seat will run 15-20 lbs

So, Let's see.

Replace two 40 lb front seats with 20 lb's.

Savings-40 lb

Replace 40 lb battery with 20 lb.

Savings- 20 lb

Remove spare tire- Saving 20 lb.

Remove rear seats- 75 lb.

Replace wheels with 12 lb wheels- 4 lb per wheel for 12 lb reduction.

So, a total of 167 lb's lost,..2340 lb stock-167= 2173 lb curb weight.

Not too shabby!

Can anyone think of ways to shed that last 73 lbs, for a sub 2100 lb curb weight?

Carbon fiber hood...i lost 12.5 lbs with the xb.
If you have an xb, Carbon fiber fenders will save you a good 40 pounds, if not more.

thats 52.5 right there... if you don't want you're a/c unit, take that out. That will save you an additional 50+ pounds. thats 102.5 right there.

Ah, I'll keep the A/C,haha.

My goal is to keep the car nice while reducing weight. I've got a brand new car..I'm not quite ready to tear out everything yet,haha.

Everything I listed above, however, are all items that would not detract from the xA's "niceness".

The worst thing would be removing the rear seats, which could easily put back in in minutes.

xb's rear seats weight 75lbs?

who said they were 75lbs? the rear seats may weigh 25lbs. if you count all the brackets holding the seats in place, maybe 30lbs. i wouldn't say more than 30lbs. when i took the backseats out of my first car (97' integra) it only weighed 19lbs.

oh, and i don't blame you for wanting the a/c! :clap: however, if you want weight reduction, you don't need it there. sort of like how type-r's a/c is an option, and some high performance cars. theres not much out there for the xa as far as CF and FG goes... slow process because the Xa isn't as popular as the Xb/Tc. Sales wise. I give it a few more months, and more will be available. you could remove all the inner-panels and replace them with a light weight material. but you'd only save maybe 15lbs doing that. only so much you can do when you talk practical.

hope it goes well...
cya

Best (in my opinion) for weight reduction is carbon fiber. Although expensive, you're combining show with weight loss! They make several different CF products for the XB and quite a few for the Xa. TC stuff is just starting to appear.

Rear seats - 60lbs (ish)
Front seats - 35lbs (ish)
Spare tire - 20lbs

Have fun! cya

ok you stated it's 60lbs ish

So, Let's see.

Replace two 40 lb front seats with 20 lb's.

Savings-40 lb

Replace 40 lb battery with 20 lb.

Savings- 20 lb

Remove spare tire- Saving 20 lb.

Remove rear seats- 75 lb.

Replace wheels with 12 lb wheels- 4 lb per wheel for 12 lb reduction.

So, a total of 167 lb's lost,..2340 lb stock-167= 2173 lb curb weight.

Not too shabby!

Can anyone think of ways to shed that last 73 lbs, for a sub 2100 lb curb weight?

ok maybe i misunderstood him with the above line "Remove rear seats- 75 lb"

Find someone to make a CF rear hatch. that has to be good for near 50 lbs.

Replace all your glass with Lexan. Glass is heavy, lexan is not.

Oops, i meant 30lbs like i said most recent.. sorry for the confusion.

The stock battery weighs about 40lbs.
You can find aftermarket ones that weight 13.5
Where??

Tamago stated that he removed his rear seats, weighed them out, and they came out to be 75 lb's.

I don't see how the rear seats come out to 75lbs. Not saying anyone is wrong, but like i said...the integra weighed only 19lbs. Unless the rear seats are most of the weight in the rear... I haven't taken my rear seats out with the xb, and won't.. So, if they said 75lbs.. I guess...

Am I missing something here? Why would you want to strip an xA down like that? I understand less weight = better performace. But xAs are NOT performance cars. Are you racing them in competitions or something? What big advantage is there to all of this? I mean, lets say you remove the passanger seat, rear seats, spare tire, stereo and you get a lighter battery. You may have lightend the car by what, 100 to 160lbs? If I have a passanger with me who's 130 lbs, I don't even notice a difference in performance. I'm sure there is a difference, but it's very slight. To gain that very small difference, I don't see how it's worth it to you to strip your car down to an ugly, one-person transport shell. It's still an xA, so it's still slow.

power to weight. its been discussed in the forums before, but thats the whole point. personally, i wouldn't go that far with my xb. im happy just doing some CF stuff and losing a few pounds here and there. however, every pound counts. 100lbs could decide a win or lose if the race is that close.

I don't see how the rear seats come out to 75lbs. Not saying anyone is wrong, but like i said...the integra weighed only 19lbs. Unless the rear seats are most of the weight in the rear... I haven't taken my rear seats out with the xb, and won't.. So, if they said 75lbs.. I guess...

i will re-weigh everything tonight and advise. i may have given you all bad info. i will weigh each piece.

~joel

Am I missing something here? Why would you want to strip an xA down like that? I understand less weight = better performace.

you just answered your own question.

But xAs are NOT performance cars. Are you racing them in competitions or something?

yes.. we are..
What big advantage is there to all of this? I mean, lets say you remove the passanger seat, rear seats, spare tire, stereo and you get a lighter battery. You may have lightend the car by what, 100 to 160lbs?

that 100+ pounds makes a huge difference. also remember, cornerability increases when you drop the CG, and by removing ANY WEIGHT above the car's CG, you are LOWERING the car's CG.
If I have a passanger with me who's 130 lbs, I don't even notice a difference in performance. I'm sure there is a difference, but it's very slight. To gain that very small difference, I don't see how it's worth it to you to strip your car down to an ugly, one-person transport shell. It's still an xA, so it's still slow.

you are thinking straight-line performance here :)

Are you racing them in competitions or something?

yes.. we are..
Oh, okay. In that case it makes peferct sense. I thought people were doing this to their daily driver just so it would be a tiny bit faster in the occasional traffic light race against some kid in a civic. If you are seriously racing then yeah, I get it.

the xA has potential to be serious contender in the SCCA, if classed right.
As for lightweight battry's (i know it's battery) check out this website.
http://www.performancedistributors.com/batteries.htm

http://www.scca-susq.com/

your local SCCA club!

i will re-weigh everything tonight and advise. i may have given you all bad info. i will weigh each piece.

~joel

I will be interested in seeing what number you come up with. I doubt 75lbs, but if this is true.. I might consider changing out the rear seats for lighter seats.

cya

i will include seatbelts and all bracketry in this measurement, as they are all out of my car :) replaced by 1 14lb momo smack in the middle, and about 2 lbs of aluminum bracketry

I don't see how the rear seats come out to 75lbs. Not saying anyone is wrong, but like i said...the integra weighed only 19lbs. Unless the rear seats are most of the weight in the rear... I haven't taken my rear seats out with the xb, and won't.. So, if they said 75lbs.. I guess...

yeah my rsx's rears seats only weight in at 25lbs. i know the xb's rear seats is larger than the XAs but 75lbs is just too crazy........

official numbers are in.

large half of seat: 27 lbs
small half of seat 14 lbs
head rests: 1lb total
seatbelts 1lb total
seat bottom 9lbs

that's 52 lbs i was off by a few lbs lol

seat bracket bar 8lbs

so about 60 lbs for back seat assy.

now, here's some more
storage cover 4lbs
trunk floor 7lbs
tools (jack/wrenches) 13 lbs
donut 24lbs
tool holder 3lbs..

the lbs add up

[/quote] Oh, okay. In that case it makes peferct sense. I thought people were doing this to their daily driver just so it would be a tiny bit faster in the occasional traffic light race against some kid in a civic. If you are seriously racing then yeah, I get it.[/quote]

If that were the case, I would agree with you.

My xA is no drag car. It's quite slow in a straight line.

However, I as well as Tamago and quite a few others autocross our xA's. That 160 pounds gone will do plenty for a car in autocross

But, to answer your question, removing 160 pounds would not do much for any car as far as 0-60 or 1/4 mile, although it would help slightly.

The real advantage would be in the corners, and braking.