Request for an electronic throttle body
#27342 from Paul Azan · Rule change · TB 19-12 (2019-12 Fastrack)
In GCR section 9.1.4.G.8, make changes as follows:
"Cars produced with an electronic throttle body may use the OEM electronic throttle body. The OEM
electronic throttle body may be converted to manual actuation and the actuation cam on a manual
throttle body may be changed to alter the opening/closing rate of the butterfly. Alternately actuated
throttle bodies may be considered on a case by case basis. Vehicle/engine combinations with manual
OEM throttle bodies may be converted to an OEM electronic throttle body of the same inner diameter as
the original OEM throttle body."