Does anyone have the timing maps for the coupe and sedan or at least know how they differ. I couldn't find any posts that had this information.

’03 G35S 6MT, black/black:
-Zex n20 Kit 150-shot & Bottle Opener
-Amsoil Air/Oil Filters & Oil
-Digital Nitrous Pressure Gauge & A/F Switch/Gauge
-Pressure-based Bottle Warmer
-MSD Window Switch

 

I would like to know this for sure as well. I have an ODBII datalogger on order so I'll know for the sedan shortly. My suspicion--based on the requirement that the coupe use higher octane fuel--is that the one of the timing maps for the coupe advances the timing a couple of degrees compared to the sedan. But that's all conjecture.

--Steve

 

Thank goodness all modern engines have fixed initial timing [nothing to adjust] so you have to become a programming expert to make changes. Lot less of the dangerous tampering allowed previously.
When you get nearer the ragged edge, you can't allow owners to fiddle if you provide a warranty.