GrantG

Only 1 week to wait for specs. Some say to expect over 600hp.

hf1

$75k is way too pricey. As I wrote in the other Z28 thread...

Z28: $75k...3800lb / 500hp = 7.60 lb/hp

Just configured a C7 with Z51 and gray color, black wheels, bucket seats
$58k...3300lb / 460hp = 7.17 lb/hp

Why would anyone pay $17k more for a 500lb (god, that's a lot!) heavier GM product with a worse lb/hp ratio? What am I missing?

What was C7 Z51's 'ring lap time, btw?

997TTMeteor

There is some pretty serious hardware on the Z28 but I think 3,800 lbs is the real nail in the coffin. It may turn a few fast laps but good luck punishing that thing all day without overheating or going through a full set of tires and pads. $75k would be the cheap part – running it on the track would cost a fortune (19x305 Trofeo’s at all corners and ceramic brakes).

Will be interesting to see the Z06 specs next Monday.

Nick

Maybe I am missing something. Why all the consternation over Z28 weight? If I am not mistaken it's weight is the same as the Porsche TTS. What counts is its performance and it is faster on the Ring than the CGT, Lambo, 458 and other super sport cars and at a fraction of the price WITH TRACK WARRANTY.

hf1

A $58k C7 Z51 vette (another GM product) is 500lb lighter and with better lb/hp ratio, and also with track warranty. The Z28 is advertised as a track weapon. At 500lb heavier than a vette it's more like a pig. 500lbs is a lot of extra work for brakes, tires, suspension, etc.

It's the comparison to the $58k vette that I don't get.

EDIT: Plus the Z28 has the old, outgoing 7.0L LS7 engine that has had a lot of problems (as per corvetteforum). The C7 has the newer, more robust 6.2L LT1 engine.

GrantG

Weight is a big deal at the track, Nick. That's why you don't see 991 TTS's at the track (though it weighs less than z/28). When the car is cheap the high running costs are even more disproportionate with the value of the car. With my 911 weighing under 1,900 pounds, it really makes life easier (and more fun to drive). Brake rotors last several years, pads many months, tires many days (and 15s are cheap). It will take awhile, but sports cars will move in this direction again soon.

GrantG

Z51 actually starts under $55k and seems like the better deal for sure.

DrJay

I could have used some of you guys recently in a conversation with some local car guys about this Z/28 I seemed to be only 1 of 2 people out of the entire group that thought this car was a bad idea for all the reasons listed here.

Too Heavy
Too expensive to run
Wont last more than a lap or two at a time
etc...

Nick

I understand that weight is the enemy of performance and contributes to higher running costs. I guess I am viewing the issue from a different approach. Look the 918 Spyder weighs around 3800 and is a super performance car. The point is if you are interested solely in performance the bottom line time is what matters.

Example, I have a GT3 coming in April and with tax it will cost me over $150,000. If my sole concern is track performance, the Z28 is far away the better deal. Sure I will burn brakes and tires faster because of the weight but that is a fraction of the cost I will save if I bought the Z28 instead of the GT3.

While on the subject, GM will be selling as an option with the Corvettes A Performance Data Recorder which is a HD Camera mounted on the windshield trim that records the track from the driver point of view with a microphone which picks up sound. All the data can be downloaded on a to a computer Facebook or even emailed. They have not set a price for it but sounds like a nice option.

Nan P

Great value & Great time.....but for how many laps?
Weight is the big issue, as others have mentioned, & this will wear out brakes like no bodies business....
I may be biased, but as Walter put it on GT3's "the car can run for 20, 30 laps & it's stays in the same condition...."

GrantG

Anyone who is interested solely in performance would be much more satisfied with a real racing car that weighs less, has more safety, as well as more performance. Its hard to make a good case for a 918 as a track car.

Nick

Porsche is betting track performance will convince on the fence buyers. The Ring time of 6:57 is hard to ignore. What else would you do with the car? Garage it? I suppose that is a possibility.

neanicu

I believe they were running a Weissach pkg for the Ring time,which is lighter...

hf1

Right. The one I configured online with the Z51 package, bucket seats, gray metalic, and black wheels ended up being $57.8k.

GrantG

Weight difference is a very small percentage improvement.