Single turbo. MAF tune. I'll spare you the year long details...?
This has a card style MAF, not a GM part.
Anyway, as I've turned up the boost, my data logs show the MAF g/sec flatlining at 655 g/sec.
I've not tuned an E38 ecu before. so be kind. I've done many Gen 3 P01's speed density, turbo cars all in the 8's.
I thought from reading that we can go way beyond this.
I started from the tune as delivered, no access to the stock tune file.
Files attached
Thanks
Ron