7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
7.8.10 Traction control reactions
This screen lets you specify what actions to take if traction control is active. The MS3Pro can be set to take
more action the longer the traction control is active. The slip number is different based on the method used.
• For VSS% slip, it is the percent by which the driving wheel speed exceeds the non-driven wheel speed.
• For perfect run, it is the percentage difference in acceleration or time vs the target.
• For switched mode, off is 0% slip and on is 100% slip.
With on/off nitrous cut, we recommend setting the nitrous cut at 0 for leaving the nitrous off, and 100% to cut off
the nitrous.
7.8.11 Launch / 2 step / 3 step / T-Brake
The MS3Pro launch control system is a 2-step limiter, typically used in drag racing applications for consistent hard
launches and/or to build boost with a turbocharged engine. The flat shift settings allow full throttle shifts on a
clutched vehicle. A switch on the clutch triggers the flat-shift rev limiting (for bikes, see also the sequential shift cut,
which may be more suitable.) It is important to install the clutch switch with adjustability, as the exact height has
an effect on how well flat-shifting works. Flat shift is unlikely to be useful when running an automatic transmission.
The 3-step is typically used as a burnout limiter and will often be linked to a line-lock.
A typical drag racing scenario would go like this: You pull forward into the burnout box, stand on the brakes
and flick on the line-lock. This also enables the 3-step. You now do your burnout and the 3-step limits are applied.
After your burnout, you pull into stage, depress the clutch (activating the launch switch) and then push the throttle
to the floor. The launch settings will hold the engine close to your chosen rpm. When you change gear, keep the
throttle planted, and only use the clutch. Now the flat shift settings come into play, and the revs will be limited to
those settings. After changing gear and lifting your foot off the clutch, the limiter is disabled. Be sure to also set
the normal rev limiter should you miss shift.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 240
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