JMB

I ran some simulations based on my guesstimated LT7 900/700 FWHP/FWTQ specs compared to the LT6 advertised 670/460 and GM typically conservative advertised 1/4 mile times of 10.6/131....granted I had to play with Aero/trans slip/traction/tires, etc to get the Z06 numbers dialed in with a conservative/achievable 60' time to match the OEM advertised ET/MPH times but once I had these where I wanted them, I added 125 lbs for TT/Intercooler/Plumbing/Etc to bring the Track weight of the Z06 from 3800 to a portly 3925 for the ZR1 but this didn't stop the beast from FLYING!

Remember, just my guesses, you have yours, I have mine and by the way...I nailed the base & Z06 1/4 mile times before they advertised...didn't expect the aero drag so my MPH was a bit off https://www.corvetteforum.com/forums...post1604229495

sshu

Do we know if the ZR-1 is going to be RWD or AWD? That will be a major factor in the 1/4 mile time.

JMB

rwd!

Z0HS1CK

I say it runs 9.8 or so. Not sure on trap speed.

A model s plaid traps 155 so anything close to that is insane.

123sugey

900/700 9.7 😉 if that’s the case.

range96

Track weight of the Z06 is close to 3,700 lbs, not 3,800.

JMB

not with driver!

vrybad

The numbers in the OP are reasonable at 900fwhp.
My Turbo S at ~3,600 lbs ran 144+ in the 1/4 mile at 800whp so the ZR1 at around the same whp should be capable of 140+, the biggest factor being weight.
I've seen Plaids trap as high as 151 or so, from what I have seen they typically trap 146-148 at around 1,000whp on average but they are extremely heavy, too.

Z0HS1CK

I think a trap at 140+ is an accomplishment since the ERAY doesn't have a high trap speed and the z06 averages 130-134? 134 being rare though.

I do wonder how GM manages the TC on the ZR1 since the z06 already has minor traction issues with it's lower torque figure.

Brooks from dragtimes had his plaid on the strip and the car does lose power depending on SOC. I think 85% or higher SOC it should trap 152-154.

range96

Published weight of a car (dry or wet or curb) does not include the driver. How much does the driver weigh, 120 or 320 lbs?

For your performance comparison adding the same weight would be accurate.

23/C8Z

I will be shocked if it has close to 900 hp.

Z0Sick6

If this is the final version of the C8 then it will have probably 900+ and be TT FPC with the erays hybrid assist.

If there is a Zora, the ZR1 will be RWD around 800 or so hp.

I say this because everything has been delayed a year + constraints and SUPER slow production. The Z06 was supposed to be 22, eray 23, ZR1 24, etc.


That's my .02c

JMB

I'm not trying to be a dick but based on ACTUAL weight used in this thread https://www.corvetteforum.com/forums...post1605910200 not some bogus GM advertised dry weight that needs a calculated wet weight and driver value, please tell me how my numbers are off and what numbers should be used? I happen to be 6-3" and weigh 200 lbs so that's exactly what I used! Peace brother...

range96

The 3,700 number is w/o the driver, but with full tank of gas ready to roll (CF wheels, CCB). If you include the driver it's well over 3,800.

I agree with you, the ZR1 might see sub 10 second 1/4 mile times in the right hands. I prefer road course, so I would rather see more focus on weight. That would also help a little in a straight line acceleration.

JMB

I'm really not trying to be difficult....did you miss the 1st sentence where it clearly states "3600 lbs with 1/3 tank of gas and no driver"? NO ONE I know races their car with a full tank of gas lol! I race with 1/4 to 1/3 tank myself so 3600 +200 = 3800 lbs dead on for a Z06 at the track and my simulation!!!

range96

I did.
I was addressing the original post.

Car Junkie 24

Who cares? It's the lap times that matter for a supercar.

Fore58

Oh yeah.....we care about everything. I believe the car was built to go at 9.90s. 10.00s anything could be disappointing. Nurburgring should be a sub 7 second for sure, if GM ever disclose the results.

JMB

maybe for you lol, as soon as mine is broken in it will be at the 1/4 mile track....I personally could give a $hit what it runs for lap times!!!

Ragtop 99

Interesting thought. I could see the engineers having that as one of the goals.