TST PowerMax settings?

[TSPowell]

The PowerMax has two settings, one for Power and the other for Torque. When the Power setting is turned up, what exactly is that changing, and the same for the Torque setting. They are independent of each other I take it, so what does each one do individually? Why is TST the only manufacture that does this, do they know something the others don't. Just want some answers before I choose between Edge or TST.

 

[JTryles]

They way I understand it, is that the torque setting controls the fueling at low RPM and the Power setting controls it at the higher RPM's.

 

[Big P]

Is the hp setting changing timing while the tq setting changes duration?

 

[tsi_2baad4u]

The HP setting ulimately controls how much extra fuel you get, the TQ setting controls how fast you get it. If you dyno on 9x1 hp/tq, you should see roughly the same max hp but the power will increase very slowly until max around redline. If you dyno on 9x9 you shouldn't gain much max hp but the fuel will come on a LOT sooner hence higher tq reading.



I could run 7x1 on my '03 and dyno at 406whp on the stock turbo, with the TQ set any higher than 3 it would spool so fast I'd risk popping the turbo but on 7 I still got the power just not until upper rpm.

 

[ThomasLawrence]

Timing advance is fixed... if power is 1 or greater, the timing is advanced. You have no control over that.



The two different settings control how much extra fuel is added at a particular RPM and boost level. The torque setting adjusts the fueling starting at 800RPM, peaking at 1200RPM through 1600RPM, then declining to 0 additional fuel at 2900RPM. The higher the number, the more it fuels, but the RPM points remain the same.



The power setting controls additional fueling starting at 1200RPM, and peaking at 2900RPM. Where the two fuel maps overlap, the effect is additive. If you graph this out, you'll see that the power level means nothing below 1200RPM, and the torque level means nothing at 2900RPM. Between those two, the amount of fuel delivered is a combination of the two settings.



Boost also factors into the amount of fuel delivered, as the box will adjust it's overall amount of fueling based on the boost level (ie. no additional fueling below 12psi, and increasing levels of fueling up to 33psi, at which point full fueling is achieved)



These RPM points (and boost levels) were from the first (aggressive) TST program - they may not apply to the newer programs, but the concept is the same.



-Tom