- First Name
- Lokki
- Joined
- Dec 11, 2019
- Threads
- 7
- Messages
- 169
- Reaction score
- 172
- Location
- Phoenix, Arizona
- Car(s)
- 2020 Toyota Supra GR Premium - 2018 Lexus LC500 Performance Package
- Vehicle Showcase
- 2
- Banned
- #301
Well, so much for those $59,000 price tags huh? Even those base model 2LT that were going for $69,000 for a few days are now over $80,000. We could argue and and say that the emergency health declaration is to blame but I feel this was inevitable anyway. I knew these C8's would go for over $100K once they were released. So many people at the car meets thought they were going to get these for so cheap LOL. Take a look at what a few of these 2LT and 3LT models are going for below. $127,000 for a used Z51 3LT with 900 miles on it.
What's more interesting is that I have found several dyno results of these C8 putting down over 550whp in 5th gear and over 450whp in 6th gear with torque numbers around 515-520 lb-ft at the wheels. This puts the C8 horsepower number closer to 600 at the crank. GM definitely underrated the new Vette for sure. Surprisingly, a tuned A90 stock turbo Supra on some E50 or even 100 octane can beat one of these C8's which is commendable. The C8 weighs 30 lbs. less than the A90 Supra, has a Tremec TR-9080 Dual Clutch Transmission that shifts in less than 100 milliseconds and has less parasitic drivetrain loss than the ZF 8HP found in the A90 Supra.
To think that when an A90 stock turbo Supra is on a bottle that it can run high 9's for still less than $65,000 it's a real easy choice on what car I would rather have for performance. The MKV Supra community hasn't even begun to crack the B58's potential, and I think we will see some 8 second MKVs and more common low 10 and high 9 second MKV Supras coming soon.
Lastly and more importantly. A have seen a few tuners who are determined to be the first to twin turbo the new C8. What I thought was odd was the fact that none of these companies took the time or even bothered researching the new integrated ECU for the C8 Corvette. It cannot be hacked or replaced by a stand-alone.
GM's new E99 ECU in the C8 Vettes involves multi-factor authentication involving dealer employees and credentials and a Diffie-Hellman 2048-bit key exchange using a SHA-256 hash digest that is unique for each VIN ECU and TCM. The Diffie-Hellman 2048/SHA-256 ECU/TCM is not a STATIC security implementation, it is currently un-crackable by even the best in the aftermarket tuning world.
Current estimates to crack Diffie-Hellman 1024 is 35,000,000 core years. It would take 35 million CPU cores 1 year to crack a single key exchange, and the key exchange is unique for each VIN. Diffie-Hellman 2048? Forget about it, not going to happen. Now then, a stand-alone aftermarket ECU that could partially by pass the rolling code encryptions momentarily will cut off factory instrument cluster, HVAC, audio, BCM, power windows and eventually will obtain authentication error which will alert On-Star Remote to shutdown the car. NONE of it will work because it has security dependencies on the factory ECU. Every module that communicates with the ECU/TCM uses 2048-bit Diffie-Hellman key exchange with a SHA-256.
Successfully flash-tuning, reprogramming and otherwise altering the engine control unit to increase power output on the 2020 C8 will be next to impossible. The anti-hacking encryption written into the electronic control module will block any attempt to "read, write, and/or replace the standard ECU of the C8. If the ECU detects such an effort, and that programming event fails, the Corvette C8 will enter a "recovery mode" that requires a reboot. The coupe can be reprogrammed, but only by an entity with the proper encryption keys - meaning a trip on a flatbed to the dealer and a sure fire way to completely void your entire warranty.
What's more interesting is that I have found several dyno results of these C8 putting down over 550whp in 5th gear and over 450whp in 6th gear with torque numbers around 515-520 lb-ft at the wheels. This puts the C8 horsepower number closer to 600 at the crank. GM definitely underrated the new Vette for sure. Surprisingly, a tuned A90 stock turbo Supra on some E50 or even 100 octane can beat one of these C8's which is commendable. The C8 weighs 30 lbs. less than the A90 Supra, has a Tremec TR-9080 Dual Clutch Transmission that shifts in less than 100 milliseconds and has less parasitic drivetrain loss than the ZF 8HP found in the A90 Supra.
To think that when an A90 stock turbo Supra is on a bottle that it can run high 9's for still less than $65,000 it's a real easy choice on what car I would rather have for performance. The MKV Supra community hasn't even begun to crack the B58's potential, and I think we will see some 8 second MKVs and more common low 10 and high 9 second MKV Supras coming soon.
Lastly and more importantly. A have seen a few tuners who are determined to be the first to twin turbo the new C8. What I thought was odd was the fact that none of these companies took the time or even bothered researching the new integrated ECU for the C8 Corvette. It cannot be hacked or replaced by a stand-alone.
GM's new E99 ECU in the C8 Vettes involves multi-factor authentication involving dealer employees and credentials and a Diffie-Hellman 2048-bit key exchange using a SHA-256 hash digest that is unique for each VIN ECU and TCM. The Diffie-Hellman 2048/SHA-256 ECU/TCM is not a STATIC security implementation, it is currently un-crackable by even the best in the aftermarket tuning world.
Current estimates to crack Diffie-Hellman 1024 is 35,000,000 core years. It would take 35 million CPU cores 1 year to crack a single key exchange, and the key exchange is unique for each VIN. Diffie-Hellman 2048? Forget about it, not going to happen. Now then, a stand-alone aftermarket ECU that could partially by pass the rolling code encryptions momentarily will cut off factory instrument cluster, HVAC, audio, BCM, power windows and eventually will obtain authentication error which will alert On-Star Remote to shutdown the car. NONE of it will work because it has security dependencies on the factory ECU. Every module that communicates with the ECU/TCM uses 2048-bit Diffie-Hellman key exchange with a SHA-256.
Successfully flash-tuning, reprogramming and otherwise altering the engine control unit to increase power output on the 2020 C8 will be next to impossible. The anti-hacking encryption written into the electronic control module will block any attempt to "read, write, and/or replace the standard ECU of the C8. If the ECU detects such an effort, and that programming event fails, the Corvette C8 will enter a "recovery mode" that requires a reboot. The coupe can be reprogrammed, but only by an entity with the proper encryption keys - meaning a trip on a flatbed to the dealer and a sure fire way to completely void your entire warranty.
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