THE ITB/ DRIVEBY-WIRE SOLUTION
Incorporating more than one throttle body into something like the FA20’S drive-bywire electronics goes beyond you arranging the right assortment of linkages and cables. You still have to do all of that, but you also have to keep that original driveby-wire throttle body around. Here, there won’t be any air passing through it and you can position it just about any place you want; instead, the throttle body’s electronic actuator has to mechanically link up to the new throttle bodies. In other words, you can’t get rid of the actuator since it’s what’s being controlled by the pedal and your right foot.
All we care about at this point is the original throttle body’s electronic actuator, which, when you step on or release the gas pedal, will pull and push the linkages, opening and closing each pair of the throttle bodies you’ve just installed.
Greddy’s specialized throttle bracket bolts to the FA20 throttle body’s butterfly shaft, only without the butterfly valve. Once plugged in to the engine wiring harness, the throttle body’s actuator will continue to rotate its shaft when your foot tells...