Holley HP EFI Drive by wire
04-18-2015, 02:20 PM
#1
Holley HP EFI Drive by wire Hey, not really sure where to post this so feel free to move.
I'm running the hp efi in my chevelle with a cable throttle body, but was wondering if there was any way to integrate a drive by wire pedal/ TB into it.
If I had a DBW pedal, TAC module and TB I can't help but think there could/ should be away to combine them.
I haven't found a schematic yet, but I was going to try to plug the holley into the sensors on the DBW throttle body so it gets the info it needs and then use the rest of the stuff just to communicate the input from the pedal to the motor.
Since a DBC throttle body is itself "dumb", and responds to movement rather than creating it, I'm thinking it might not matter whether the throttle blades move as a result of me stepping on a pedal that pulls a cable or one that sends a controls an electric motor.
Surely it isn't as simple as all that, but before I spend time trying I though I'd see if anyone else has messed with it. I need a new throttle cable anyway and that would run $50ish or so. For a few bucks more I could go dbw and give myself a summer project at the same time. Either way, just thought I'd ask.
Thanks
I'm running the hp efi in my chevelle with a cable throttle body, but was wondering if there was any way to integrate a drive by wire pedal/ TB into it.
If I had a DBW pedal, TAC module and TB I can't help but think there could/ should be away to combine them.
I haven't found a schematic yet, but I was going to try to plug the holley into the sensors on the DBW throttle body so it gets the info it needs and then use the rest of the stuff just to communicate the input from the pedal to the motor.
Since a DBC throttle body is itself "dumb", and responds to movement rather than creating it, I'm thinking it might not matter whether the throttle blades move as a result of me stepping on a pedal that pulls a cable or one that sends a controls an electric motor.
Surely it isn't as simple as all that, but before I spend time trying I though I'd see if anyone else has messed with it. I need a new throttle cable anyway and that would run $50ish or so. For a few bucks more I could go dbw and give myself a summer project at the same time. Either way, just thought I'd ask.
Thanks
04-21-2015, 12:19 PM
#3
9 Second Club
Does the HP EFI have an H Bridge to drive the DBW motor ? And does it have enough inputs to accommodate it safely ?
Typically a proper DBW setup will eat 4 inputs
If it isnt configured to do it from Holley, I doubt you'll be making it work. The ecu doesnt look overly flexible in that respect as other ecu's would be
Typically a proper DBW setup will eat 4 inputs
If it isnt configured to do it from Holley, I doubt you'll be making it work. The ecu doesnt look overly flexible in that respect as other ecu's would be