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01206 · 12-18-2015, 10:33 PM

I am going to machine throttle body to 62mm, and will keep the old butterfly. so butterfly is 2mm smaller. I know the idle rpm goes higher, and will need to tune ecu. question is anything go wrong more than that?

12-18-2015, 10:33 PM	#1 (permalink)
01206 Base Member Join Date: Jul 2013 Location: Canada Posts: 25 Drives: 13 370z Rep Power: 12	smaller throttle butterfly I am going to machine throttle body to 62mm, and will keep the old butterfly. so butterfly is 2mm smaller. I know the idle rpm goes higher, and will need to tune ecu. question is anything go wrong more than that?