This Supra arrived in need of some help. For the most part, the car was mechanically sound, but there were a few loose ends to tie up. Once those issues were addressed, I took at peek at what was going on in the car’s AEM EMS. From the first glance, it was obvious that the tune was pretty haggard… there would be lots of work to do.
- Garrett GT42 turbo
- AEM EMS
- 1680cc injectors
- fully built motor
- HKS 272 cams
After correcting the basic parameters within the AEM EMS, the car behaved beautifully. Once the car was running nice and strong at the wastegate level, I started to turn up the boost and the power output just kept on rising. Somewhere north of 25psi, there was a hint of a miss at high RPM, so we decided to take a look at the spark plugs. The plugs Jan removed from the car did look a bit old, so he replaced them with new ones that he had in stock. This alone resulted in a gain of 30whp.
730.6 hp @ 8250rpm and 532.5 ft-lbs @ 6750rpm
As compared to our “measuring stick” stock ’06 STi: