Originally Posted by
engineermike
If we know the TB, MAF, and injector data are all correct, the job gets easier. I know many folks get tricked up by the injector data due to the scaling and assumed default pressure, so I'd verify that first.
Beyond that, this most likely turns into speed density and torque model tuning issue. The first thing that pops into my head is was the IMRC delete done correctly. If you log mapped point, you should be using only the IMRC-open mapped points like MP14 and up. It should start at MP14 and idle at MP15, generally. Once you've confirmed that, it moves on to getting the SD and torque models accurate. You can borrow these from Whipple or Roush cals but the tricky part is making sure the data is going from and to the same cam timing. In other words, Roush might use MP0 for 0,0 cam timing, while you are using MP14. So you'd copy the torque, SD, and probably BLK and MBT data from Roush MP0 to your MP14. Whipple was using MP14 for 0,0 but I would confirm in whatever donor tune you get your hands on.