QUOTE(creations @ Apr 24 2021, 03:09 PM)
(1) yeah.. with power turned on, indeed it will able to pick up the acceleration faster.
The only curious part is whether the turbo is utilised when power is turned on? It doesn't mention much about this.
(2) There's a note mentioned in 4-3 that the engine has to be idle for a minute before turn off the engine in order to prevent the damage on turbo unit. I can assume that, there's no built-in cooling solution on turbo after the engine is turned off?
Hi Creations,
Probably I will answer this to my best ability - though I don't own a Ativa.
I drive an Exora Turbo. And I have OBD2 reader.
1) Turbos are not "off and on" switches. If one has a turbo boost gauge, one will notice the boost pressure varies. Or it will not boost at all, and drives like a normal NA engine. Depending on throttle pedal pressure.
But what I understand that Power button in Ativa possibility is to increase boost pressure limit (but not beyond specs), sharpen the throttle and adjust more aggressive CVT gear ratios (this one confirm). Hence better pickup.
Off = Lower Pressure = Lower horsepower but smoother ride. Probably improve FC.
On = Higher pressure = more horsepower .
2) I presume Ativa may not have turbo water cooling too. One have to check if there is any water piping going to the turbo.
In Exora, there is a electric water pump and the radiator fan will be triggered if temp is above 88C. Its there to protect the turbo and partially cool down the hot engine also.
Again, this is depending on engine cooling design.