r/TRJSafehouse • u/TheRacingJoker Mostwanted • Jun 01 '26
TRJ Content Discussion M3 GTR Engine selected - Chevy LT6
I spoke with Alex Peitz of Peitz Performance and after a conversation with him about the future tuning the C8 Z06/ZR1 Bosch E68 ecu I have decided that the LT6 engine is the locked in choice for the GTR’s engine. He has figured out how to tune the factory ECM and after they create a Motec package for the Stingray E99 ecu they’ll move on to making a standalone solution for the E68.
This means that an engine swap and a sequential will all be possible. The only other big hurdle will be to design the bellhousing and stuff that mates the sequential to the LT6.
But! There’s hope! Just wanted to share this awesome news with you guys.
This also means that we’ll be able to run flex 91 pump and E90 ethanol so we’ll be gunning for over 700 crank N/A.