TRD Supercharged Toyota Tacoma - Engine Tuning - Split Second

7. Once the wiring harness was unplugged, we used the instructions provided to locate which wires would be cut and spliced in for properly wiring the FTC1 Calibrator.

8., 9. & 10. Each connection was made at the ECM first, then soldered together before being heat shrink-wrapped to ensure a permanent and weatherproof connection.

11. At this point, things looked rather messy, but it was controlled chaos - we promise. As soon as all the wires are tapped into the ECM, things will look a lot cleaner.

12. With all the wiring connected, soldered, and heat-shrunk at the ECM, the wires were bundled. The correct length needed for installation was then determined so the wires could be cut to the desired length.

13. The frayed bundle of wiring is the bunch we've just wired into the ECM, while the other bunch is the wiring that corresponds to it and is connected to the FTC1 Calibrator.

14. & 15. Once all the wires from the ECM and FTC1 were soldered and shrink-wrapped, double-sided tape was used to mount the FTC1 box under the dash on the passenger side.

16. With the calibrator installed, the right side of the lower dash was put back together, and all the wiring was hidden. The only thing visible is the box sitting under the dash, with a nine-pin COMM port pointing at the passenger seat to allow programming.

17., 18. & 19. We popped the hood of the truck only once to run a section of vacuum/boost line from the calibrator box to the supercharger to determine the truck's state of boost. This allows the box to be programmed for corrections in timing and fuel for any rpm range.

20. Next, we took the truck to a dyno to have it tested and tuned. With the truck strapped down for safety, the Split Second R-4 software created a map to tune it.

21. After tuning, we came up with an increase of 66 hp and 40 lb-ft of torque. We realized something was still wrong with the truck since we weren't able to get the amount of fuel we wanted no matter what we did with the tuning software. Next, we'll attempt to track the fuel problem down. We could find as much as 220 total horsepower under the hood. We'll clue you in when we find the answers.