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Originally Posted by ported_head  But, Boss, basic question remains unanswered! How does the Tri-Phase work? Man this is the third time I am asking the same question, and I am getting bored of myself now. Because I really can't make out anything of the description that is given on one of the tuner websites! |
To understand how Tri-phase works its important to know how a stock ECU is programmed, If you happen to see any fuel map you will notice that it is programmed to run at 14.7 A/F ratio aka Stoich in closed loop for throttle <50 % for low & midium load this will give maximum fuel economy which an indian consumer wants, when you use device like triphase it modifies the signals mainly Map,IAT which is going to ecu & ecu thinks of high load & throws in more fuel, so your part throttle which was for economy is now running rich as if at W.O.T, w.o.t is for power & maximum fuel enrichment hence you notice very good power only at part throttle since its running rich which can be around 13.1 AFR for N.A
Triphase will not be any benefit for throttle >50 % & at W.O.T
If you see their technical Notes of their product they will say its not compatible with NOS. Why ? because when when triphase is "ON" the ecu reads from different fuel/ignition columns the ignition timing will not be appropiate for NoS to work safe or else it can damage the engine.
Just my 2 Cents
& do correct me if i am wrong.