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[Z06] Z06 Weight Reduction?

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Old Nov 22, 2007 | 02:42 AM
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Default Z06 Weight Reduction?

Hey folks! I realize that our Z06s are pretty light to begin with, but are there any reasonable weight savings to be found? The Vette still has to be practical afterwards, so don't suggest body panel removal! Here's what I came up with:

Headers- gotta be lighter than cast manifolds...
AIR system- worth a few pounds, correct? Will removal throw a code?
Wheels/tires- any reasonably priced options out there? How about factory magnesium rims?
Underdrive pulley- not sure if this is a good Z06 mod. It was worthwhile on my 2000 Z28. What brand?

Any other advice/suggestions would be great. How about hollow swaybars? I've got to keep the A/C, so that easy savings won't work...

Thanks in advance!
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Old Nov 22, 2007 | 03:02 AM
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Part way down the page....

http://forums.corvetteforum.com/showthread.php?t=984927
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Old Nov 22, 2007 | 03:03 AM
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Default weight reduction ................

The front sway bar is already hollow.http://www.corvettemuseum.com/specs/2001/agility.htm

Last edited by dieseldave56; Nov 22, 2007 at 03:14 AM.
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Old Nov 22, 2007 | 03:38 AM
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Removal of the air pump will throw a code but it can be tuned out.

An Odyssey 680 or 925 battery will save about 20-25 lbs

Race seats will save another 30-40 lbs

As you mentioned replacing any exhaust component except the cat backs will save weight.

An aluminum flywheel and lightweight clutch assemble is good for about 20 too.
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Old Nov 22, 2007 | 04:19 AM
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Originally Posted by bullitt4110
Some good stuff, but not very specific. Here's what I gleaned for the Z06:

Non-popup headlights (~40 lbs)
Braking rotors with an aluminum hat, or titanium rotors (unproven on street cars) (~20-30 lbs)
Long tube headers (~20 lbs)
Halltech aluminum alternator & bracket (10 lbs)
Carbon fiber driveshaft (~2 lbs)
Newer torque tube
Less gasoline & wiper fluid (No wiper fluid=9lbs, 6 lbs for every gallon of gas in that 18 gallon tank....~81 lbs for autocrossing)

Remove
BCM’s
fuel rail covers
Replace
stock crank pulley with aluminum aftermarket pulley
steel dampener with aluminum dampener
water pump with electric water pump
battery with smaller battery
non-stressed fasteners with aluminum or titanium fasteners
leaf springs with coil over shocks with titanium springs
steel shifter with aluminum shifter and delrin or titanium shift ****

Stage II: Hardcore semi-streetable weight reduction mods
Aluminum flywheel (~10 lbs)
Lighter clutch like Exedy or Quartermaster (~10 lbs)
Racing buckets (40-50 lbs)
Off-road x-pipe (10 lbs)
Floor mats

I already have a carbon-fiber hood (Z16). Does the Haltech bracket really save 10lbs? What is a good, light-weight replacement battery? Any preferred pulley brand? Thanks again!
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Old Nov 22, 2007 | 04:21 AM
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Originally Posted by dieseldave56
The front sway bar is already hollow.http://www.corvettemuseum.com/specs/2001/agility.htm
Good stuff! I'm still learning the Z06. Thanks!
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Old Nov 22, 2007 | 04:23 AM
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Originally Posted by Last C5
Removal of the air pump will throw a code but it can be tuned out.

An Odyssey 680 or 925 battery will save about 20-25 lbs

Race seats will save another 30-40 lbs

As you mentioned replacing any exhaust component except the cat backs will save weight.

An aluminum flywheel and lightweight clutch assemble is good for about 20 too.
Has anybody used the Odyssey battery with good results?

I'm not due for a clutch yet, but will upgrade when the factory one quits.

Thanks again for all the help!
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Old Nov 22, 2007 | 04:25 AM
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What's a "BCM"? Sorry for all the newbie questions...
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Old Nov 22, 2007 | 12:02 PM
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The OEM Z06 wheels are fairly lightweight and well designed, but there are appreciable differences in tire weights between models/manufacturers. I have noticed Michelins (NON-runflats) are lighter than many others.

Other thoughts:
Baer's 2-piece, stock sized rotors.
Shop around for lighter battery (proven for daily usage?)
I never use my windshield washer fluid, so removed the tank.
Yes, retain the stock Titanium mufflers--get rid of the rest.
Research aftermarket seat options.

Oh yeah, steer away from the DRIVE-THRU.
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Old Nov 22, 2007 | 12:33 PM
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Seats, light wt batter and get rid of the speakers. Over 100# savings here

Light wt wheels and tires saves more then 50#s

air condenser and any related parts for the AC

and dont forget to get on the scale yourself. Cut out the Big Macs

One of the funnest pictures is several 250 lb guys talking about wt savings on their vettes.
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Old Nov 22, 2007 | 12:35 PM
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I don't race my car, but I'm always thinking about at least maintaining the same weight as oem...the car, not me
I get a kick out of people who love their Z06 performance, but continue to add more and more weight to their car with larger tires/wheels/sound systems/googaws & widgets...
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Old Nov 22, 2007 | 02:24 PM
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Originally Posted by danziger
Has anybody used the Odyssey battery with good results?

I'm not due for a clutch yet, but will upgrade when the factory one quits.

Thanks again for all the help!
I have the Odyssey 925MJT and I'm very happy with it. Several people on here have the 680 and are happy with theirs too.


Last edited by Last C5; Nov 22, 2007 at 03:36 PM.
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Old Nov 22, 2007 | 03:51 PM
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Originally Posted by Last C5
I have the Odyssey 925MJT and I'm very happy with it. Several people on here have the 680 and are happy with theirs too.

Seems like an easy way to cut weight. Where'd you get that fancy mounting bracket?
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Old Nov 22, 2007 | 11:38 PM
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Odyssey sells the 925MJT mounting bracket and they also have one for the 680 batteries. The Z06 badge was laying around the shop and needed a home.
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Old Nov 22, 2007 | 11:55 PM
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Originally Posted by Last C5
The Z06 badge was laying around the shop and needed a home.
Hmmmm...more weight.
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Old Nov 23, 2007 | 12:15 AM
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Originally Posted by danziger
What's a "BCM"? Sorry for all the newbie questions...
Hi danziger -

That is the Body Control Module.

It is one of eleven modules on the C5 that report codes to the DIC.

best regards -

mqqn
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Old Nov 23, 2007 | 02:27 AM
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Originally Posted by BaseballDude
Hmmmm...more weight.
Well yes, but it goes along with my track build scenario - if you can't go that fast, at least look good.
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Old Nov 23, 2007 | 04:25 AM
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Originally Posted by 500hp
The OEM Z06 wheels are fairly lightweight and well designed, but there are appreciable differences in tire weights between models/manufacturers. I have noticed Michelins (NON-runflats) are lighter than many others.

Other thoughts:
Baer's 2-piece, stock sized rotors.
Shop around for lighter battery (proven for daily usage?)
I never use my windshield washer fluid, so removed the tank.
Yes, retain the stock Titanium mufflers--get rid of the rest.
Research aftermarket seat options.

Oh yeah, steer away from the DRIVE-THRU.
I've heard lots of good stuff about the Michelin PS2, so they are on the short list for replacement tires.
A light-weight battery seems like a great idea, so I'm hoping that folks with advice on a good one will chime in.
I'm working on losing some fat myself...
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Old Nov 23, 2007 | 04:29 AM
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Originally Posted by AU N EGL
Seats, light wt batter and get rid of the speakers. Over 100# savings here

Light wt wheels and tires saves more then 50#s

air condenser and any related parts for the AC

and dont forget to get on the scale yourself. Cut out the Big Macs

One of the funnest pictures is several 250 lb guys talking about wt savings on their vettes.
When you guys say light-weight seats, what kind or brand?

Same question on rims/tires...

Gotta keep the A/C.

Yah. I weigh about 205lbs and am trying to get down to about 195 for appearance reasons, rather than for the Z06, but point taken.
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Old Nov 23, 2007 | 04:31 AM
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Originally Posted by Last C5
I have the Odyssey 925MJT and I'm very happy with it. Several people on here have the 680 and are happy with theirs too.
Very nice! I'm all over that set-up! How often do you drive it and is it reliable? Need a battery-tender on it often? Thanks in advance!
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