ZR-1 Net Registry Forums - View Single Post

tpepmeie · 07-19-2009

Bob,
you understand this better than you give yourself credit for. Ideally, there would be no pressure loss through the throttle and intake at WOT. That is rarely the case, but usually the pressure drop is only slight (say, 1 kpa). If the Key on Engine off MAP reading is 99.6, then you might see 98.6 or so at WOT, and it will get worse with increasing RPM. Whoever suggested the OP to check for collapsing air duct may just be on to something.

07-19-2009	#14
tpepmeie Join Date: Aug 2005 Location: Fishers, IN Posts: 812	Re: Need help understanding scan data Bob, you understand this better than you give yourself credit for. Ideally, there would be no pressure loss through the throttle and intake at WOT. That is rarely the case, but usually the pressure drop is only slight (say, 1 kpa). If the Key on Engine off MAP reading is 99.6, then you might see 98.6 or so at WOT, and it will get worse with increasing RPM. Whoever suggested the OP to check for collapsing air duct may just be on to something.