c40carbon

2011 z06 weights 3175 lbs versus ZR1 weights 3333 lbs. Beside a supercharger added on ZR1, where is this 158 lbs weight difference coming from ? I believe the the chassis of both cars is identical. I heard that insulations on Z06 are moved in order to save some weights. I would appreciate if anyone on this forum would advise.

Thanks in advance for your reply.

Bauker

Wing, front lip, front lip support, side skirts, larger wheels, more meat on the block, and suspension. Not sure about the brakes or cooling...

McGirk94LT1

well. I believe only 06 z06's are that light. I think 07 and up are 3200 about. But for 158 pounds, you have a metal, hefty size supercharger, i think 7 liters of intercooler fluid, and probably a larger size and capacity radiator. The zr1 has even lighter components then the z06, but that supercharger and liquid intercooler i easily could believe is over 100 extra lbs. Larger wheels and tires add up too. But as said, for every pound added they tried to cut a half a pound(ok not exactly) somewhere else.

Vette5.5

Actually the 06' ZO-6's are listed at 3130 lb and a common spec for the ZR-1 is 3333, so that's an extra 200 lbs hanging over the nose. Nobody ever said F.I. was the answer to everything. Pretty sure a big part of the 06's lightness is the T-56 transmission, as the 6060 weigh's in an extra 25-30 lbs. At least it's in the back end.

GOLD72

Interesting. First time I have heard that the 6060 weighs more than the T56. I am satisfied with my T56 but then again ignorance may be bliss. Until I own a 6060, I may not know what I was missing. Missing weight apparently won't be one of them.

Jasil

Not on topic, but I think the Z06 is definitely worthe premium over a base C6 for the look alone. The widebody looks infinitely better than the stock car. The GS looks good (of course it's a widebody) but it has those gills on the side......blech.

My biggest gripe with the ZR-1 is here is a 100K+ car with the same base interior as the other two models. I could never justify purchasing a car that looks so identical to the base model.

Why the CTS-V seats nicer touches couldn't have been added for another 6-8K is beyond me.

A bolt on Z06 all day over a ZR-1 just my opinion.

lebvette

Yep....lots of difference in the brakes.

Larry

MTIRC6Z

"the 6060 weigh's in an extra 25-30 lbs"...so why are you saying this, have you actually weighed one and compared it to a T56?

Personally I swapped my T56 trans and Z06 diff for a RPM L-5 TR6060 and a ZR1 diff, the weight difference between these 'packages' was only 4 lbs (202 vs 206). So while I didn't do a direct comaprison between just the transmissions I'm still confused by your 20-25 lb claimed weight increase for just the TR6060.

Cheers, Paul.

QwikC

Z06 = aluminum frame.

bgreen83

The ZR-1 has an aluminum frame as well. The MRSC might add some weight as well.

LFZ

When the TR6060 was introduced into Zs in 2008..the list weight for the vehicle went up about 30lbs. I think everyone assumed the added weight may have been due to the transmission upgrade, but I don't know if anyone other than yourself has weighed each tranny on a scale to measure the difference. Interesting observation though...4lb. difference isn't much considering what you are getting with the RPM TR6060.

spoon man

Quick question, what does the stock rear wheel and oem tire weigh? Thanks

QwikC

Wow, a personal misapprehension and ignorance of ZR1 frame, won’t feel as much the fool of this fact in the future… sincere thanks for the insight.

'06 Quicksilver Z06

On a Z06?????

http://forums.corvetteforum.com/c6-z...e-weights.html

http://forums.corvetteforum.com/c6-z...ck-wheels.html

LFZ

There have been several stated comments on this forum stating that the ZR1 has the steel frame....not sure why that assumption is made, but you are the not first. Awesome that we can learn so much from this forum.

MTIRC6Z

Let me be clear, I didn't separate the trans/diff and weigh them individually, so I actually don't know for sure what the weight difference is between the T56 and the TR6060.

That said, before I made the purchase of all this stuff I asked RPM how much heavier the ZR1 diff was (because it has additional bearing support and billit pieces instead of forged) compared to the Z06 diff. They told me the ZR1 diff was 7 lbs heavier (which is actually pretty significant considering we're talking about a piece that only weighed 70 lbs to begin with).

So it is somewhat puzzling that I only weighed 4 lbs difference when comparing the T56 trans AND Z06 diff to the TR6060 trans AND ZR1 diff. This of course could mean the TR6060 is actually lighter than the T56. I suspect this is highly unlikely given the 10% larger gears in the TR6060, but it certainly does tend to support a conclusion that there's probably no weight penalty to using a TR6060. In reality the discrepency is likely related to the old trans/diff not be completely dry (even though it had been drained) compared to the new unit which obviously was dry.

Cheers, Paul.

spoon man

I am sorry I meant zr1. I was wondering how heavy the zr1 rear wheel set up is. Sorry I didn't specify.

fivefingerdeathpunch

Does anybody think that 158 lbs really makes a big difference when the ZR1 has 638 HP with about 565 to 580 RWP stock vs the Z06 when i get in my car i just added 260 lbs and now girlfriend gets in there another 150 the ZR1 wins hands down over a new Z06 both cars are the best bang for the buck

MTIRC6Z

Well I can sure tell there's a performance penalty to having a passenger riding with me, and I've got 600+ rwhp...which is part of why I've gone to considerable lengths to knock about 160 lbs off the weight of my Z06.

Cheers, Paul.

spoon man

Paul would you care to explain what you did? I am guessing a few obvious things like battery, exhaust,etc but if you could let me know that would be great