lately been having problem *** the k-constant and the TP scale. i just put in 550cc and z32 maf, but they seem to be running too rich. i used a k-constant of 9DC3 (40387) and stock TP scale of 10-104. Is my K-constant way off?

Map trace to set your TP scale. For initial setup, get it running on all but the last couple of columns under no boost, then transition to the last couple of columns under boost. Then you've only got to tune one or two columns.

On the k-val, I would start with something around 38000(dec), looks like your in the same ballpark. Tweak the k-val back and forth with the latency.

my stock k-constant is 21475,

if i added bigger mafs, i increase the k-constant

say z32 mafs = 480hp vs stock mafs = 220hp

21475 * (480/220) = 46855

if i add 550cc, say 550cc vs stock 370cc, then i decrease the k-constant

46855 * (370/550) = 31521

after that i would decrease TTP Min, TTP Max, and TP Scale by ratio of 370/550

am i correct?

can you explain why you would start at 38000?

the value 40387 i got is from a mines tune, they left the tp scale stock 10-104 and didn't even change the injector null time which is 3A stock. the mines tune seems to run too rich for me.