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Weight Reduction

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Old 08-27-2004, 01:34 AM
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Here's the latest chart including aftermarket parts with their weights....those are in red. Stock values are in black.

Thanks to those who are contributing data for this!
Attached Files
File Type: pdf
Stock weights.pdf (22.6 KB, 298 views)
Old 08-27-2004, 06:31 AM
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From http://www.bridgestonetire.com/
RE-040 225/45R18 tire weight: 28 lbs

rx8cited
Old 08-27-2004, 07:06 AM
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Every once in awhile, I'm going to update my post further back with the info in the PDF, because this PDF won't be searchable via the forum search, which is something I was hoping would be possible for this.

And we may eventually want to change the title of the thread to "Weight Reduction: Stock Parts Weight" or something similar. Apparently, we are gathering stock weights, not so much gathering weight savings of aftermarket parts. Which, at some point, we may want to create a thread on that.


Originally Posted by Ole Spiff
What I think I want to do is create a list of the stock weights of items so we have a baseline for comparison.

Last edited by robertdot; 08-27-2004 at 07:11 AM.
Old 08-27-2004, 12:05 PM
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I can save it as an html file, but I can't figure out how to post it so it's viewable (other than as source text). Is there a way to upload an html file?
Old 02-06-2007, 01:06 AM
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ive seen stock weights posted in other threads, but this one seems to be the most organized so I'll post my info here.... volk ce28n 8.5 x 18 front wheel.....13lbs.... 18 x 9.5 rear wheels 13.5lbs...weighed on a digital scale......racingbrake calipers....6lbs...racingbrake front rotors...14.5lbs...racingbrake rear rotors....9lbs..........so in summary unsprung wieght from the front of the car mostly rotational ......about 36lbs give or take .5 of a lb., .....from the rear....about 23lbs.......do I notice a difference........heck yes I do ...
Old 06-12-2007, 03:26 PM
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Here's another 3 pounds saved for $500:
http://www.aj-racing.com/catalog/pro...0&cat=6&page=1
Attached Thumbnails Weight Reduction-nuts.jpg  

Last edited by savedsol; 06-12-2007 at 03:31 PM.
Old 06-12-2007, 03:34 PM
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I saved about 165 lbs, but it cost me several thousand dollars. Her name was Cindy.

Old 06-12-2007, 07:36 PM
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Those of you that have saved weight on wheels, brake rotors, etc. - when you say you notice a difference, is this in handling or in acceleration? Or both?

Thanks!
Old 06-12-2007, 07:58 PM
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Originally Posted by mdw1000
Those of you that have saved weight on wheels, brake rotors, etc. - when you say you notice a difference, is this in handling or in acceleration? Or both?

Thanks!
Greatest difference for me is handling. It seems like it take no effort at all for the car to do what I want. enkei RP1-fs alone made me extremely competitive in autox.

But there is a change in acceleration, and its noticible.

I would say go for the wheels & brakes, before you go flywheel.
Old 06-12-2007, 07:58 PM
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I saved 3.4 lbs by removing the air pump . Takes about 5 mins or less so would be good to remove it for a track day .
You will get a cel eventually though so probably best to put back on for the street.
Old 06-12-2007, 08:01 PM
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my old rims were 26 lbs each. New ones are 17.8 lbs each. Can't say that I notice an increase in speed, but it feels more nimble on turns.


I also don't think lightweight lugs will help enough to matter. They're close to the center of the wheel.
Old 06-12-2007, 09:03 PM
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volk ce28n's are great wheels, but no way 18.8.5's are 13 lbs
Old 06-13-2007, 02:53 PM
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not in an RX-8 offset/pattern anyways, that's why those wheel weight sites are pointlessly useless ...
Old 06-15-2007, 12:33 PM
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judging from this list, its going to be in the 16-17 lbs range.

http://www.upgrademotoring.com/wheels/ce28n.htm
Old 06-15-2007, 09:53 PM
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what about coilovers are they sprung or unsprung weight?

changing to a set of coilovers from stock would save u about 8 kg at least.

my impressions after changing, the car is awhole lot more responsive and acceleration has improved drasticly also, could be due to the hardness setting, or weight reduction, im not sure.
Old 06-15-2007, 10:05 PM
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this thread is not just old, it's outdated x 10

please close this and force people to use the current appropriate thread:

https://www.rx8club.com/rx-8-racing-25/weight-stock-rx8-parts-81791/
Old 06-16-2007, 12:00 AM
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Why close a piece of RX8Club history?

This thread is like Dominos............(I'll let somebody else finish the sentence)
Old 06-16-2007, 03:43 AM
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Originally Posted by VASasha
I'll let somebody else finish the sentence)


pie
Old 06-16-2007, 07:40 PM
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Anyone know how much the stock exhaust weighs?
Old 06-16-2007, 07:43 PM
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you might want to read the link posted recently that contains the weight of most things including the exhaust.
Old 06-16-2007, 07:54 PM
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Originally Posted by mysql101
you might want to read the link posted recently that contains the weight of most things including the exhaust.
I looked @ the list on the pdf file, but it wasn't on the list.

EDIT:: Never mind found it, thank you.
Old 06-16-2007, 11:13 PM
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You can never loose enough...
Old 06-17-2007, 01:03 AM
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I like pie too. Was wondering why they posted here?????
Old 06-17-2007, 04:02 PM
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What! No toast?!?!
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