At about 5600, its shooting massively rich and killing about 20hp on the dyno sheet then it climbs back up.

Looks like I was tripping the Cat overtemp protection, I turned the thresholds up to 1800 and it didnt seem to be as bad but its still doing something at 5600 thats cutting power

 

Do you have any datalogs? Some printscreens might help out. Also, what are your mods?

 

only mod to the car is GM stage 2, everything else was removed and put back to factory

i have 2 logs one before and after I shut off the COT

It was rediculously hot, never seen temps that high

 

If you have the stock cat is probably is clogged and on it's way out then. The car will start to stumble, then it'll run like total **** eventually. Pull the downpipe and check it out.

 

wouldnt surprise me, retards at GM have this thing so ridiculously rich

 

Super rich tunes can tear up that cat real quick. Don't worry it happened to me too back in the day!

 

Well another solution is to make more power so that the run is over faster and the temps dont get so high lol

 

shut off the COT.

 

I did, the problem wasnt quite fixed, something is happening at 5600 and its cutting power

 

set both numbers 0, set the temps to 7405.

turn off piston protection.

 

piston protection is set at 3600, not 5600, theres no difference at 3600

what both numbers are you talking about?