The HACK

Be careful what you wish for.

When it comes to benchmarking and instrumentation testing. there's a gigantic gulf between all season tires and max performance summers. Dry, wet, braking, acceleration, lateral grip, usually a max summer tire of any kind beats out all seasons from the same brand by a country mile.

For a point of reference, even between the Pilot Super Sport that the previous generation Corvette came with, and the current Pilot Sport 4S, there's a 1.4 second per lap difference, and 5ft difference in 60-0 braking. Both max performance summer tires.

I'd shudder to think what the performance numbers would be for a C8 shod with all seasons stock.

shiftdown

If tires are the only thing really limiting it's performance, then there is no problem. A set of R888R's for the track will be fine. It rains tons around here, so we need the all seasons in my area most of the time.

The HACK

Sure, that's like saying slap on a set of Hoosier A7s and watch my $5,000 Civic run circles around a Corvette on corded tires at a local AX.

In truth, tires are perhaps the BIGGEST denominator when it comes to a car's performance limits. And that's not my "worked for a tier 3 tire manufacturer once" speak, but my 20 years worth of HPDE experience speaking. That's why, if you want the non-Z51 performance tested, you're likely to be disappointed in the C8's performance as the lack of straight line grip may SIGNIFICANTLY impact the actual data. The ONLY measurable that won't be a huge drop in performance, is probably the 1/4 mile trap speed.

0-60, 60-0, figure 8, lateral sustain G on skid-pad, lap time, etc are all going to take a significant hit going non-Z51 IMO. Enough so that a non-Z51 C8 will likely only beat out a non-Z51 C7 in 0-60 time but lose everywhere else.

Here's an objective test between the PS4S and previous generation Pilot Sport A/S 3+, same car, same track.

PS4S:
https://www.tirerack.com/tires/tests...y.jsp?ttid=248

PSS*:
https://www.tirerack.com/tires/tests...y.jsp?ttid=218

PS A/S 3+
https://www.tirerack.com/tires/tests...y.jsp?ttid=241

All objective data shows WORSE numbers on the all season:

Slalom:
PS4S: 4.99s
PSS: 5.04s
PS A/S 3+: 5.21s

Lap time:
PS4S: 29.69s
PSS: 29.74s
PS A/S 3+: 30.69s

Braking (50-0):
PS4S: 78.4 ft
PSS: 78.1 ft
PS A/S 3+: 80.90 ft

Skidpad G:
PS4S: 0.97 G
PSS: 0.92 G
PS A/S 3+: 0.92 G

Tripjammer

I know right? It’s totally crazy up in here! No respect to any of the other cars. Everybody outside of this forum knows the 911 is a bad *** car, always has been and always will be!

Tripjammer

pilot cup 2.....the C8 z06 will have those

Achmed

C8 Z51 gearing looks like acceleration drastically reduces after 120 mph. So in a high speed roll race the 911 will beat it. Or in a half mile or longer. Most corvette owners dont do that though.

I wonder how the non-Z51 stacks up, in guessing its faster than the Z51 after 120.

23/C8Z

120? Look at the 60 to 100 time.. and the 100 to 120. But that's to be expected with the pwr to wt the car has... gearing and traction. Start the race.from 5mph (up) and it's almost se as a base C7 A8.

ZeeOSix

Weight to power (and gearing) for acceleration is key until lots of aerodynamic drag starts to kick in above around 120 MPH. Then acceleration to top speed becomes an aerodrag to power game. The car with less Cd x frontal area needs less HP to achieve dominance on the top end. A car with lots of power and a small Cd x frontal area is going to be a beast above 120 MPH.

Dr. ice

You pegged it. GM uses the 911 as their benchmark car for good reason. Everyone likes to cheer for the underdog. If the Corvette wins in 2-3 categories out of 10 against a 911 then it IS a great accomplishment for Chevy! The Corvette is a great car that continues to get better.....but you get what you pay for! The Corvette remains a great option for those that can’t or don’t want to afford the 911.

C8 Gator

Back to the OP's original topic - C8 0-150 - In my entire life I have done a true 0-150 one time! it was in my prior Viper GTS. I really don't give a damn what the 0-150 is - where are you all doing this 0-150? I can't find a place to do it on the track or street? WTF? Or do I chalk this up to just another glass half full thread?

23/C8Z

It's a shame they don't make the 60 to 130 standard practice when they list
0 to 60
5 to 60
0 to 100

Etc.

60 to 130 is such a good metric for what it feels like to hit it from the go and what happens v other cars as opposed to traction limitations and super driver error.

NORTY

Good luck finding a track that let a 'vert run without a full cage...

NASTYC7

Do you buy your Douch'ness in quarts or gallons.... ???

Tennis & Golf Nut

Porsches are ****, just admit it.

Skid Row Joe

This, is good advise. Many of us are waiting for just that.

the lark

There a Porsche guys and there are corvette guys.
I’ve driven 911s nice cars. Fast, but they just don’t do it for me. Not like Corvette’s.
And I can afford a 911. They are also a good buy for the money.
The corvette is just better, deal with it. You can’t win them all.

Mcrider

I didn't say anything about sales limited to strictly America did I?

BTW, the Boxster and Cayman are both mid engine.

Achmed

just have to do the math from the numbers they provide, from the OP

C8 60- 130 in 10.4
porsche 60-130 in 9.4

their 0-100 is the same, so its 100 to 130 where the c8 loses ground, like I said mostly after 120 because from their 1/4 mile and trap you get:

Vette 100-122 in 4.0 and 122-130 in 2.0
Porsche 100-125 in 4.1 and 125-130 in 1.1

They might also have a more detailed downloadable test sheet of both cars' acceleration by each 10 mph increment.

That's why I'm curious of the non-Z51 numbers, which we probably wont see, I bet its 60-130 etc is faster with its lighter weight and taller gearing