Torque Control | What Is It, Why Do We Need It?

Turbocharging N/A engines is nothing new, and has some known downsides...

But like anything, if you know the weaknesses to watch out for it is easier to manage and avoid them as Haltech's Mitch Smith explains in relation to this 780whp 2JZ-GE being used in a time attack applications.

Using modern aftermarket ECU systems one tool tuners have on hand is torque management, and Mitch explains how vis boost and ignition control, he can maintain a flat torque curve with the goal of mechanical sympathy on this stock 2jz bottom end.

With a stock bottom end, build cylinder head, Precision 6870 turbo pushing 25 PSI at max boost this Supra is limited to around 7,500 rpm in order to help keep the stock rod bolts intact and the car doing laps.
------------------------------------
TIME STAMPS:
0:00 - Mitch Smith
0:18 - 2JZ-GE Turbocharged
0:57 - 2JZ Weak Points
1:42 - Rod Bolts Vs Power
2:35 - The Issue: It's Not Power
3:04 - What Is MBT?
3:34 - Why Limit Torque?
3:41 - Torque Curve Management
3:57 - Ignition Tuning Process
4:33 - E85 Cylinder Pressures
5:04 - Torque Control Tool Options
5:54 - Boost Curve Vs Flat Torque Curve
6:41 - DBW Throttle Control
7:08 - Driver Feedback
7:39 - 780hp at 25psi
8:10 - Future Plans
8:28 - RPM Limit
8:37 - Tuning Isn't Just About Peak Dyno Readouts
8:51 - BUILD.TUNE.DRIVE