Got my truck dynoed with the 5.3l before I swap it out for the LQ4. It was on a Mustang Dynanometer which typically put out lower numbers than the inertia type dynos (I.E. Dynojet, superflow, etc.) so i wasn't expecting to be impressed. Numbers right off the dyno were: 246rwhp and 270rwtq. After implementing some correction factors from a Dynojet it was 271rwhp and 302rwtq. Just goes to show how big of a difference you can get in between different dynos, but more importantly how the shop calibrates them....oh and why you should always stick to one place when tuning your vehicle.


http://media.putfile.com/Mustang-Dynometer-run

Dyno sheet is in the truck, I'll try and post a pic later. The torque curve is fantastic! I was very happy with that.