Mike's LS3

I have a 2008, manual, Z51, NPP corvette with a Diablew custom tune and Halltech MF103 air intake. The car runs great, thanks to Lew's tune and the Halltech air intake.

My understanding is that the OEM tune has low and high (or normal) timing tables. Significant K.R. will cause the oem tune to fall into the lower timing table and revert back up slowly, when K.R. is not present.

Does the Diablosport canned tunes or Diablew custom tunes have two timing tables, also? Or do they use one set of timing values?

8850

Yes, the High and Low Octane tables. Same as your stock tune. Only the High Octane table is changed with the standard Diablo tune.

There are also many other tables that control advance but we are only referring to the two noted tables.

Mike's LS3

Thanks for the reply. That makes sense, upper timing values are replaced with the canned/custom tunes. Also, I do understand that IAT's, ECT, Knock sensors, etc. effect timing.