Procharged C8 Z06
CF Community Team
Joined: Oct 2007
Posts: 1,117
Likes: 593
From: NorCal San Jose
The LT2 ECU has mature tuning SW & tuners available, but the LT6 ECU has not been cracked yet. Until that happens the market seems to be reduced to hacking/spoofing the LT6 sensors while avoiding a CEL. The LT2 is also a full point lower in compression at 11.5:1 which doesn't help when you can't alter the tune dramatically.
There are probably other reasons but I can't think of them.
There are probably other reasons but I can't think of them.
Le Mans Master
Joined: Dec 2013
Posts: 6,337
Likes: 5,108
From: Charles Town WV
2024 Corvette of the Year Finalist - Modified
2023 C6 of the Year Winner - Modified
2022 C6 of the Year Finalist - Modified
Yep, the locked ECU is the main reason, no control over timing or fuel is hard with a supercharger. I dont see the LT6 taking boost real well with that kind of compression unless they really get the ECU right. I'm sure the harmonics in this thing are pretty well balanced and a belt driven supercharger isn't really going to help that cause. The one thing still holding the stingray/eray guys up still is they havent been able to unlock the TCU on either so... no trans tuning which has truthfully been the biggest road block with these cars making insane power. Give it time though, their for sure working on it.
Melting Slicks
Joined: Aug 2022
Posts: 2,784
Likes: 3,566
In addition to the software issues, the LT6 has that very complicated multi-path intake manifold that constantly adjusts as you drive. I don't think you would get a good result by ripping that out and bolting on a blower. You can't think of this engine as a 'traditional' American V8. It's a whole different thing.
Le Mans Master
Joined: Dec 2013
Posts: 6,337
Likes: 5,108
From: Charles Town WV
2024 Corvette of the Year Finalist - Modified
2023 C6 of the Year Winner - Modified
2022 C6 of the Year Finalist - Modified
Yeah I would agree, LT6/LT7 are a rapid departure from traditional LS/LT stuff. These things are way out of GM's typical wheelhouse for better or worse. The aftermarket will figure them out eventually but R&D takes time and the OE's aren't in that game anymore like they were in the past. Once tuning becomes available the hard parts come next and eventually the platform evolves. Its jut taken so much longer with this generation because Global B's framework and encryption was way crazier than anything anyones ever dealt with in the aftermarket tuning realm before.
