controling when the 5n6 ports open as well as the VDI,when(RPM)should i open them up?
i was wondering on your ideas on how to do this.
i have 2 rpm activated switches from summit that i was going to hook up to the vacume selenoids but i hear that the vacume is created by the air pump. now what happens if i remove the air pump? can i find other vacuume sourses on the motor? would this be ok? what rpm should i have the ports open and how bout the VDI? does this change depending on the mods done to the car? its a 90 motor that i'm putting in my 87 so my ecu does not even know they exist. i need to find a way (other than wiring them oped) to open them no cats K&N intake TB mod thanks bill |
they should start to open around 4k rpm. actually it's not vacuum that opens them it's positive pressure (about 2 psi exhaust back pressure, or depending on the year air pump pressure).
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