Stock throttle body is 52mm
Stage 3 upgrade throttle body is 58mm
Its only needed when your motor needs more air intake when modifying you engine.
Upgrading other components that make the motor breath more air.
Example is changing the size of the motor, 112CI to 128CI (121 CI to 128CI got that wrong)
Updated heads with bigger valves with roller rockers - better breathing - higher RPM
Cams that stay open longer with the valves opening up more.
So now the need for a bigger FI throttle body
I'm just about finished with this 3 month project and will report the differences.
(Ordering time for these custom parts takes time)
Last edited by JVS; 30/06/16 03:22 PM.
