Technosquare VQ35HR ECU Reflash - Test Bench

Technosquare also tuned the multiple fuel maps, making them richer in some places and leaner in others (to run as close as possible to a 13:1 air/fuel ratio at full throttle). The VTC (variable cam timing) scheduling was optimized on both the intake and exhaust cams, not for NOX-reducing internal EGR, but for best power and torque. Also, the rev limit was raised to 8000rpm. Other changes include more part-throttle, light-load ignition advance for improved fuel economy and a more aggressive e-throttle response curve.

We used one of Technoquare's off-the-shelf reflashes to best represent a typical customer. For those with more aggressively tuned engines and/or forced induction, Technosquare can tune to accommodate boost, big camshafts, high compression, larger injectors and mass airflow meters with existing programs available for nearly all popular forced induction kits and naturally aspirated combinations on the market. Custom tuning by Technosquare's Tadashi Nagata is also available for local customers.

As our dyno test results illustrate, the Technosquare ECU made for gains across the board, fattening the powerband and smoothing out the power curve. The ECU flash resulted in a peak gain of over 9 wheel-hp at 7050rpm. Gains at the peak torque point were 16lb-ft at 4050rpm. Maximum gains were 26 wheel-hp at 6450rpm and a massive 54lb-ft of torque at 2000rpm. The seat-of-the-pants gains were also impressive with improved throttle response, smoothness and slight gains in fuel economy, mostly a couple more miles per gallon in highway driving. Other than having to buy more expensive premium fuel, we've yet to find any drawbacks to this reflash. Keep in mind that if your power modifications change significantly, a new reflash will be necessary to re-tune the ECU.

It's rare to find a modification that gives significant improvements throughout the powerband like the Technosquare reflash. It's also one of the quickest and easiest ways to get a substantial increase in power under the curve.