Big Als Z

2pc rotors form the CTS-V would work. figure..10lbs a wheel? Ive actually heard of higher weight loss numbers there...but figure 5-10lbs
Redesign and remove mufflers could shed 50lbs
Cut 50lbs of sound insulation because its a performance model.
Forged wheels another 10 lbs a wheel? Maybe more?
How about carbon fiber parts? Maybe the roof? Save 10 lbs there.
Thinner, lighter Recaro seats. Say 5lbs a pop.
Then go in and find another 30 lbs elsewhere in the car.
200lbs gone.

Zigroid

$15k added

JakeRobb

Shipping weights include boxes and packaging. The weight of the item itself should be less. These numbers are pretty much useless.

ZZtop

Oh yeah, they are definitely on the high side, as evidence by Jason's actual weights, so they are conservative numbers. Conservative is good, not useless.

Jason, did you get an actual weight for that LS3 intake manifold yet?

99SilverSS

In the November issue of Hot Rod Magazine they did some work to address the weight of the 2010 Camaro.
They cut weight with these mods.
GMPP Shorty Headers. 9lbs total.
GMPP Mufflers. 22lbs total
Aluminium flywheel. 13.3lbs
Upgraded racing clutch. 3lbs
Remove engine cover. 4.6lbs

They did some other weight reductions like remove the antiaway bar (8.5lbs), wiper fluid reservoir (9.7lbs), remove tire pump (6lbs) and added drag radials (5lbs) because they were drag racing the car. With all of that they cut about 81 lbs.

I've heard weight losses for an exhaust change in the 35lb range and there was a post in this site https://www.camaroz28.com/forums/sho...=706781&page=2
where the weight of the IRS came in at 390lbs or about 138 lbs higher than a solid axle.

There is some areas that GM could save weight on this car if they wanted to. But it all costs money and development time.

IMO a better Z/28 would be a upgraded head/cam LS3 making a mild 485hp but with weight savings in the 100lb range and upgraded suspension to make use of the extra power. I'd even be game for a solid axle if it could dip the weight of the Camaro into the 36XX lib range.

Z284ever

Compared to the live axle rear suspension which GM would have used, Camaro's IRS adds about 80 pounds.

JakeRobb

My understanding is that all three use the exact same initial casting.

The LS9 has the head bolt holes drilled and tapped for larger bolts (12mm vs 11mm IIRC) than the LS3. I suspect the LSA has the larger bolts as well.

The 2008 LS3s had a different block, but when GM made the LS9, rather than produce two different 6.2L GenIV blocks, they gave the LS3 the same improvements that were needed to support LS9 power.

99SilverSS

Which one would they have used?

Z284ever

Don't know the particulars, but the car's VLE gave me that number.

jakef2003

Umm..what?

99SilverSS

I would have been real curious if the solid axle ever came up for debate. Knowing the issues many of us had with the 7.5" 10 bolt in the 4th Gens. They lost many a battle to LS1 power and sticky tires.

2010_5thgen

why wouldnt the brakes change? i think they would. look at the vette. the z06 and even zr1 had a brake upgrade. the regular vette has 2 piston and the z06 has s up front and 4 in the rear. the zr1 has 8 up front and 6 in the rear. the z28 would have a brake upgrade. also the suspension would probably be a little stiffer and maybe a little lower. im sure it may shed a few lbs also. maybe a fiberglass hood or possibly carbon fiber. there has been alot of carbon fiber on performance cars in the past few years and i think it would be possible to see some carbon fiber on the z28 like the zr1 has. wheels woudl also be lighter and wider than the ss.

Z284ever

Oh yes it did!