Did a search and couldn't find anything.

I'm getting data on my track data scans with craig moates program, but they stop at 6375 rpms, and I know I'm shifting higher than that, around 6500. The rev limiter is set in the chip at 7500.

Is 6375 the limit, and if so, what happens past that point?

I thought Mike Davis mentioned something like that on the 3rd gen mailing list.

 

I wasn't aware of a max rpm just that the spark advance table stops at 4800rpm. Might want to post over on the DFI&ECM board, you might get some more hits.

 

The data stream only sends out a byte of info that is stored in ram , now since the max number for a byte (or 8bit value) is $FF which is 6375 rpm ( max resolution of 25 rpm)
But the ecm uses a word (16 bit value) $#### so the ecm can go higher than 6375rpm ( and have more resolution) but it will not be able to send this out to the datastream.

Also depending on what code you are running will depend upon what fuel settings and spark settings are used ie what is the max limit of the tables - spark timing uses a adder from 4800 rpm on while fuel will go to 6400rpm in my code before using the values for 6400 from then on