Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

weight reduction options

Thread Tools
 
Rate Thread
 
Old Aug 10, 2009 | 02:01 PM
  #1  
rxeight89's Avatar
Thread Starter
Registered User
 
Joined: Jun 2009
Posts: 2
Likes: 0
weight reduction options

Ok so I am a college student which means I dont have money for performance parts, I have some just not big ones. The biggest I have is an AEM CAI. So I figure I could just work on making it a little bit lighter. Thats where the DIY comes in. Does anyone have ways to make my RX8 lighter that I can do myself. Does not matter how many I would have to do, lots of small ways is fine.

Thanks
Reply
Old Aug 10, 2009 | 02:07 PM
  #2  
tubingchamp's Avatar
What mawd bug?
iTrader: (3)
 
Joined: Aug 2007
Posts: 1,515
Likes: 1
From: Surrey, B.C., Canada
Take out all seats, interior pieces, AC, smaller battery, lighter rims, stereo, speakers, get a custom single pipe aluminum exhaust from manifold back.

The car is quite light from factory.. The seats don't weigh much. Depends how extreme you want to go.

Also, the straight pipe exhaust will blow your eardrums.

Not sure what else...
Reply
Old Aug 10, 2009 | 02:49 PM
  #3  
epikeddie's Avatar
Registered User
 
Joined: May 2009
Posts: 448
Likes: 0
From: Socal
You can strip all the items mentioned above.....still not going to lost THAT much weight.

If you start getting fancy (but very expensive)....you can start replacing body parts with lightweight examples.
Reply
Old Aug 10, 2009 | 03:01 PM
  #4  
kersh4w's Avatar
Hit & Run Magnet
iTrader: (3)
 
Joined: May 2007
Posts: 6,690
Likes: 3
From: DC Area
how heavy are you?

you can get the car down to 2800lbs and still have it pretty damn streetable. its just the question of how much do you want to spend. the best easiest gains would be a light weight single exit exhaust and lightweight rims. light weight racing seats, especially if you have leather. those 3 should net some pretty decent weight loss. and if you are over 180lbs, you better work on that. cause that weight loss is free. start running.
Reply
Old Aug 10, 2009 | 03:02 PM
  #5  
nycgps's Avatar
Out of NYC
iTrader: (1)
 
Joined: Jun 2005
Posts: 19,881
Likes: 36
From: Planet Earth
Originally Posted by kersh4w
how heavy are you?

you can get the car down to 2800lbs and still have it pretty damn streetable. its just the question of how much do you want to spend. the best easiest gains would be a light weight single exit exhaust and lightweight rims. light weight racing seats, especially if you have leather. those 3 should net some pretty decent weight loss. and if you are over 180lbs, you better work on that. cause that weight loss is free. start running.
rofl !!!

hmm I should start running then ...
Reply
Old Aug 10, 2009 | 04:11 PM
  #6  
Socket7's Avatar
ಠ_ಠ
 
Joined: Aug 2007
Posts: 2,228
Likes: 6
From: Under the Dumbarton Bridge
Getting lightweight rims is going to do more for performance then gutting your cars interior, and it will look a lot better.

Have you considered a set of good tires also? Tires are the #1 most overlooked performance item.
Reply
Old Aug 10, 2009 | 04:24 PM
  #7  
staticlag's Avatar
The Professor
 
Joined: Aug 2004
Posts: 3,479
Likes: 7
From: Omaha, NE
lightweight battery will take like 20-30lbs off right there.

lexan windows -30-40 lbs, carbonfiber trunk -10lbs

remove front and rear low speed bumper bar (just don't get into an accident!) 30-40 lbs

remove speakers & amp 20-30

All that with lighweight wheels and tires and an exhaust system will get you into the 2700s if you have the base model
Reply
Old Aug 10, 2009 | 05:09 PM
  #8  
Grungepup's Avatar
Oilfield trash
iTrader: (2)
 
Joined: Feb 2008
Posts: 2,509
Likes: 0
Originally Posted by kersh4w
how heavy are you?

you can get the car down to 2800lbs and still have it pretty damn streetable. its just the question of how much do you want to spend. the best easiest gains would be a light weight single exit exhaust and lightweight rims. light weight racing seats, especially if you have leather. those 3 should net some pretty decent weight loss. and if you are over 180lbs, you better work on that. cause that weight loss is free. start running.
you mean i have to lose weight now? DAMN YOU!!!!!!!!!! DAMN YOU ALL TO HELL!!!!!!!!!!!!!!
Reply
Old Aug 10, 2009 | 08:33 PM
  #9  
rxeight89's Avatar
Thread Starter
Registered User
 
Joined: Jun 2009
Posts: 2
Likes: 0
Yeah I have been looking at carbon hoods an trunks but yeah like I said I dont really have money so I will see what I can do...an no im 160 so i'm good there lol. And I have high speed tires. Once I get outta college and makin money i'll make it a monster.

Thanks all
Reply
Old Aug 11, 2009 | 02:05 PM
  #10  
michaelsk8er's Avatar
Registered
iTrader: (1)
 
Joined: Jan 2009
Posts: 147
Likes: 0
From: Wilmington, DE
I would recommend a lightweight flywheel. Lower rotational weight is very important, which is why most people start off with wheels. The flywheel is not that expensive, but actually replacing it could be, depending on if you do it yourself or have a shop do it. It would definitely help your acceleration.
Reply
Old Aug 11, 2009 | 02:39 PM
  #11  
dillsrotary's Avatar
jersey fresh
 
Joined: Dec 2005
Posts: 3,688
Likes: 0
From: Boston, MA
Go for the biggest chunk of metal, aka the 42 lb stock exhaust. Get the HKS single side, it only weighs 17 lbs.
Reply
Old May 22, 2011 | 10:12 PM
  #12  
longpath's Avatar
Registered
iTrader: (1)
 
Joined: Apr 2005
Posts: 631
Likes: 3
From: Stamford, CT
Wikipedia is claiming that the S2 weighs 90lbs less than a S1. Is that so and if so, how?
Reply
Old May 22, 2011 | 10:57 PM
  #13  
monchie's Avatar
I HATE SPEEDBUMPS!
 
Joined: Nov 2007
Posts: 8,549
Likes: 8
From: Las Vegas, NV
2-year bump from hibernation!
Reply
Old May 22, 2011 | 11:04 PM
  #14  
monchie's Avatar
I HATE SPEEDBUMPS!
 
Joined: Nov 2007
Posts: 8,549
Likes: 8
From: Las Vegas, NV
Originally Posted by longpath
Wikipedia is claiming that the S2 weighs 90lbs less than a S1. Is that so and if so, how?

Not exactly sure, but i think it is due to the lighter weight, lowered gearing, and improved suspension. To sum it up, it has lighter parts than before.
Reply
Old May 23, 2011 | 12:23 AM
  #15  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,139
hell no, they are stinking heavy compared to the S1, even the later S1s are heavier than the 04 & 05 models

wikipedia is based off of subjective input from individuals, somebody lied or is just plain wrong, my 05 is currently low 2700# with 5 gallons of fuel

Last edited by TeamRX8; May 23, 2011 at 12:27 AM.
Reply
Old May 23, 2011 | 11:07 PM
  #16  
yiksing's Avatar
the giant tastetickles
 
Joined: Sep 2005
Posts: 2,758
Likes: 0
From: in the basement
Originally Posted by TeamRX8
hell no, they are stinking heavy compared to the S1, even the later S1s are heavier than the 04 & 05 models

wikipedia is based off of subjective input from individuals, somebody lied or is just plain wrong, my 05 is currently low 2700# with 5 gallons of fuel
but u gutted your car, didnt u?
Reply
Old May 23, 2011 | 11:28 PM
  #17  
alz0rz's Avatar
hakuna matata!
iTrader: (41)
 
Joined: Aug 2007
Posts: 6,002
Likes: 3
From: NYC
Originally Posted by monchie
Not exactly sure, but i think it is due to the lighter weight, lowered gearing, and improved suspension. To sum it up, it has lighter parts than before.
what?
Reply
Old Mar 10, 2012 | 06:17 AM
  #18  
ather's Avatar
Registered User
 
Joined: Mar 2012
Posts: 21
Likes: 0
u can start off by

removing all 4 seats

remove ac unit

remove dvd sat nav,speakers

remove sun visors

remove all un necesary boxes

remove spare wheel

remove all carpets and floor mats

Stage # 2 if u wana get reely low

Add a single racing recaro bucket seat with belts

change full body kit to veilside or some good carbon fiber body kit idt veilside is carbon fiber
it includes side skirts front & rear bumper

point b change front hood and rear trunk to carbon fiber and if wana go low change doors to cf as well a good sets arround 2gs

add lower suspensions

add lite weight racing rims with good year racing slicks

and i guess ull be able to bite of any thing btw 1 to 2 secs of ur 0 to 60 and have a decent quarter mile

next stage(after u finish schooling)

2win turbo kit

spoiler

racing clutch

brembos

hks exhaust

ecu chipping

nos (wooooooooooo)
Reply
Old Mar 10, 2012 | 07:17 AM
  #19  
wrightcomputing's Avatar
Made in England
iTrader: (5)
 
Joined: Oct 2010
Posts: 738
Likes: 3
From: Sarasota
Just remove any part that opens, doors, hood trunk then cut the roof off and fit a roll cage. This is a miata but you get the idea.

http://www.flickr.com/photos/56923473@N08/6969296229/
Reply
Old Mar 10, 2012 | 07:57 AM
  #20  
lta_ds_fs7's Avatar
Registered
iTrader: (2)
 
Joined: Jan 2011
Posts: 1,006
Likes: 0
From: Dallas, TX
Originally Posted by wrightcomputing
Just remove any part that opens, doors, hood trunk then cut the roof off and fit a roll cage. This is a miata but you get the idea.

http://www.flickr.com/photos/56923473@N08/6969296229/
You know writecomputing...Everytime I see you've made a post, I can't help but think it's going to be an exciting one, resulting in me getting to say something mean.

I think the last exciting thing I saw from you was you telling some guy with a power steering problem that he was probably just low on power steering fluid...

I would look up some of your other exciting posts, but I'm too lazy.

Something tells me there will be more to come though.

Post on, my friend...Post on...
Reply
Old Mar 10, 2012 | 12:08 PM
  #21  
godesshunter's Avatar
Voids warranties
 
Joined: Aug 2011
Posts: 1,632
Likes: 0
From: southern new england
Originally Posted by ather
u can start off by

removing all 4 seats

remove ac unit

remove dvd sat nav,speakers

remove sun visors

remove all un necesary boxes

remove spare wheel

remove all carpets and floor mats

Stage # 2 if u wana get reely low

Add a single racing recaro bucket seat with belts

change full body kit to veilside or some good carbon fiber body kit idt veilside is carbon fiber
it includes side skirts front & rear bumper

point b change front hood and rear trunk to carbon fiber and if wana go low change doors to cf as well a good sets arround 2gs

add lower suspensions

add lite weight racing rims with good year racing slicks

and i guess ull be able to bite of any thing btw 1 to 2 secs of ur 0 to 60 and have a decent quarter mile

next stage(after u finish schooling)

2win turbo kit

spoiler

racing clutch

brembos

hks exhaust

ecu chipping

nos (wooooooooooo)
No. You lose.
Reply
Old Mar 10, 2012 | 12:17 PM
  #22  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,139
Originally Posted by yiksing
but u gutted your car, didnt u?
No, not allowed to. It has the full OE interior and trunk trim except for the front two racing seats that are required to weigh 25 lbs each with mounts and hardware. The OE cloth seat weight in this configuration is 38 lbs each, so those two seats cut 26 lbs. Could cut out some more if it were not for that minimum weight restriction. It is intended to keep people from using super expensive carbon fiber seats, etc.

otherwise there's always Nutrisystem ...
Reply
Old Mar 10, 2012 | 12:18 PM
  #23  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,139
I know that feeling .....

Originally Posted by lta_ds_fs7
You know writecomputing...Everytime I see you've made a post, I can't help but think it's going to be an exciting one, resulting in me getting to say something mean.

I think the last exciting thing I saw from you was you telling some guy with a power steering problem that he was probably just low on power steering fluid...

I would look up some of your other exciting posts, but I'm too lazy.

Something tells me there will be more to come though.

Post on, my friend...Post on...
Reply
Old Mar 10, 2012 | 12:21 PM
  #24  
lta_ds_fs7's Avatar
Registered
iTrader: (2)
 
Joined: Jan 2011
Posts: 1,006
Likes: 0
From: Dallas, TX
Originally Posted by TeamRX8
I know that feeling .....
I'm glad I'm not the only one...lol
Reply
Old Mar 10, 2012 | 01:36 PM
  #25  
wrightcomputing's Avatar
Made in England
iTrader: (5)
 
Joined: Oct 2010
Posts: 738
Likes: 3
From: Sarasota
Originally Posted by lta_ds_fs7
You know writecomputing...Everytime I see you've made a post, I can't help but think it's going to be an exciting one, resulting in me getting to say something mean.

I think the last exciting thing I saw from you was you telling some guy with a power steering problem that he was probably just low on power steering fluid...

I would look up some of your other exciting posts, but I'm too lazy.

Something tells me there will be more to come though.

Post on, my friend...Post on...
It must be a month since your last outburst...... people with a ***** don't have that problem.
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 05:23 PM.