I have been helping my buddy tune his 2013 ZR1. He has done a BTR stg 3 cam. Upper and lower pulleys. 2.35 upper and 14% lower from Lingenfelter. Not sure of lower size. ARH headers, ID850 injectors, Ported blower and ported snout.
I have tuned it for him in both SD and MAF mode. Had everything dialed in well and ran great.
Then he added meth injection and took it to a pro tuner to tune the meth specifically.
Now when he tries to make a 1/4 pass it will do well the first time. But on the 2nd pass it goes into "reduced engine power" and shuts it down until you clear the PCM.
I do see the pro tuner reversed all the SD tuning I did on it. But he also set it up to disable speed density. And the values he put in to all the SD tables are not the stock ZR1 numbers. So I don't know where he came up with them.
I have a suspicion as to why it goes into REP. But I'd like some other opinions.
So here is his stock file, the file I had in the car before the meth was added, and the pro tune for the meth.
Ideas?