C7 ZR1 April Nurburgring Testing
04-16-2018, 08:43 PM
#61
04-16-2018, 08:52 PM
#63
04-16-2018, 11:19 PM
#64
04-16-2018, 11:30 PM
#66
A street car running 1:26 at Road Atlanta is absolutely ridiculous. I remember 10 years ago, full on race-prepped C5 and C6s with 4xx motors were running in the low 1:30s and we thought that was as fast as it could get.
Also, I think the "kept cool" comment is very significant especially considering that it was not being treated nicely.
Last edited by Kappa; 04-16-2018 at 11:36 PM.
04-16-2018, 11:48 PM
#67
A street car running 1:26 at Road Atlanta is absolutely ridiculous. I remember 10 years ago, full on race-prepped C5 and C6s with 4xx motors were running in the low 1:30s and we thought that was as fast as it could get.
Also, I think the "kept cool" comment is very significant especially considering that it was not being treated nicely.
.1 is rather interesting, sounds like a " we weren't really trying" press day.
04-16-2018, 11:50 PM
#68
Burning Brakes
That was the old GT3RS.1. As others have reported the new .2 RS just went under 7 minutes. ZR1 should be much faster on paper but perhaps it is experiencing heat soak on such a long track, but who knows until Mero and GM do an official lap time.
Last edited by skxf430; 04-16-2018 at 11:50 PM.
04-17-2018, 01:26 AM
#69
I just watched some clips of the Porsche running at the Ring. Good Lawd that thing is booking! Wow!
04-17-2018, 02:34 AM
#70
I just double checked curb weights directly from the source.
https://files3.porsche.com/filestore...S-Catalogo.pdf
http://www.chevrolet.com/performance...tyleOne=397606
2019 GT3RS: 3318
2019 ZR1: 3560
So its a difference of 242 lbs (in GT3RS favor) with a SAE power difference of 245 (in ZR1 favor).
But here is the thing.. my experience at the Nurb. tells me that the ZR1 2x!! Torque on the GT3RS is going to show up like clockwork at EVERY curve exit speed. There are 73 curves (depending on definition of curve..) at the Nurb track...
https://files3.porsche.com/filestore...S-Catalogo.pdf
http://www.chevrolet.com/performance...tyleOne=397606
2019 GT3RS: 3318
2019 ZR1: 3560
So its a difference of 242 lbs (in GT3RS favor) with a SAE power difference of 245 (in ZR1 favor).
But here is the thing.. my experience at the Nurb. tells me that the ZR1 2x!! Torque on the GT3RS is going to show up like clockwork at EVERY curve exit speed. There are 73 curves (depending on definition of curve..) at the Nurb track...
Last edited by Telepierre; 04-17-2018 at 02:52 AM.
04-17-2018, 02:42 AM
#71
If they can’t do a single lap of the ring without pulling power, time to pack it up and put your r&d money into turbos instead of super chargers. That should happen anyway....
04-17-2018, 06:11 AM
#72
Turbo is an old utilitarian gas saving technology for street cars.
Should the corvette emulate the 911!? Add two turbos and hit reliability and heat by 25% for a measly 20! horsepower increase?
Pass...?
Last edited by Telepierre; 04-17-2018 at 06:11 AM.
04-17-2018, 06:11 AM
#73
I just double checked curb weights directly from the source.
https://files3.porsche.com/filestore...S-Catalogo.pdf
http://www.chevrolet.com/performance...tyleOne=397606
2019 GT3RS: 3318
2019 ZR1: 3560
So its a difference of 242 lbs (in GT3RS favor) with a SAE power difference of 245 (in ZR1 favor).
But here is the thing.. my experience at the Nurb. tells me that the ZR1 2x!! Torque on the GT3RS is going to show up like clockwork at EVERY curve exit speed. There are 73 curves (depending on definition of curve..) at the Nurb track...
https://files3.porsche.com/filestore...S-Catalogo.pdf
http://www.chevrolet.com/performance...tyleOne=397606
2019 GT3RS: 3318
2019 ZR1: 3560
So its a difference of 242 lbs (in GT3RS favor) with a SAE power difference of 245 (in ZR1 favor).
But here is the thing.. my experience at the Nurb. tells me that the ZR1 2x!! Torque on the GT3RS is going to show up like clockwork at EVERY curve exit speed. There are 73 curves (depending on definition of curve..) at the Nurb track...
Last edited by Enzom; 04-17-2018 at 06:12 AM.
04-17-2018, 06:22 AM
#74
Le Mans Master
The original Old Turbos helped win a war!
This "turbo" thing reminds the 80s euro DOHC thing and 6 valves per cylinder Japanese thing... they laughed at the corvette pushrods and 2 valves until they did not laugh anymore....
Turbo is an old utilitarian gas saving technology for street cars.
Should the corvette emulate the 911!? Add two turbos and hit reliability and heat by 25% for a measly 20! horsepower increase?
Pass...?
Turbo is an old utilitarian gas saving technology for street cars.
Should the corvette emulate the 911!? Add two turbos and hit reliability and heat by 25% for a measly 20! horsepower increase?
Pass...?
04-17-2018, 06:29 AM
#75
It can be argued PTM has nullified that "drivetrain" advantage for a while now..at parity of entry speeds the pull off of that 2x torque (controlled by PTM) is actually visible...that 4 liter can scream at 9000 all it wants..it is not moving as fast in a torque sense...
04-17-2018, 06:49 AM
#76
04-17-2018, 07:02 AM
#77
Le Mans Master
My father was a Bombardier Navigator then!
And
How'Bout this run was some local dealer talent there in last years painted beater test mule? Dreaming!
No matter what it was a cost effective thumbing of thy nose attempt!
Last edited by johnglenntwo; 04-17-2018 at 07:51 AM.
04-17-2018, 07:27 AM
#78
It can be argued PTM has nullified that "drivetrain" advantage for a while now..at parity of entry speeds the pull off of that 2x torque (controlled by PTM) is actually visible...that 4 liter can scream at 9000 all it wants..it is not moving as fast in a torque sense...
Comparative track telemetry (if it is ever available) may give us tangible data on corner entry and exit speeds, but I really do not think the GT3 is going to give up much to a ZR1 coming out of a corner.
04-17-2018, 07:33 AM
#79
Le Mans Master
Without Heavy trail braking, and CCB!? ;)
So assuming the PTM is pulling torque to keep the drivewheels from spinning, doesn't that kind of nullify the torque advantage you began with? My point is that the layout of the GT3 has an inherent advantage over a front engine rear drive high torque car on corners because of its ability to put the power down more quickly. If you are saying that PTM pulls torque to allow the ZR1 to avoid spinning, great. But then it is not putting all of its torque down - because it can't without losing traction.
Comparative track telemetry (if it is ever available) may give us tangible data on corner entry and exit speeds, but I really do not think the GT3 is going to give up much to a ZR1 coming out of a corner.
Comparative track telemetry (if it is ever available) may give us tangible data on corner entry and exit speeds, but I really do not think the GT3 is going to give up much to a ZR1 coming out of a corner.
Last edited by johnglenntwo; 04-17-2018 at 07:58 AM.