Originally Posted by letmotorsports
The ECU has sufficient dynamic range to adjust for atmospherics. Octane requirement decreases in the winter.
LET is beta-testing our TwinTune setup right now. We have a switch to toggle between two setups, be it nitrous, race fuel, or valet.
As others have pointed out, LET develops our tunes in-house, on the dyno. As far as we know, LET is the only shop able to do true custom tuning, not involving an overseas file service.
Thank you for the answers. Nice tip on the octane requirement. So would that be the opposite in the summer, to use a higher race fuel octane?
So it is possible to have a custom tune for different setups? Is that by replacing the chips as well?
Do you guys work with any of the tuners in Scottsdale? Lot's of high hp MB guys there.
Thanks again for the help.