ZR-1 Net Registry Forums - View Single Post

XfireZ51 · 10-13-2008

With the recent results I've gotten at the track and on the dyno, I have started looking for ways I can optimize tune for WOT. I heard about doing "plug cuts" before but never took the time. This time I did. Very revealing.
Looks like its running "a bit" rich and that I have some fuel to take out. Next step is hooking up my ZT-2 at the collector. My suspicion is that the WB at the dyno is on the lean side because its at the tailpipe. Using my WB at the collector should give me a more accurate reading. Attached
is a pic of an NGK BKR7E plug on the left and an AC Delco 41-602 on the right.

10-13-2008	#1
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,685	WOT Tuning With the recent results I've gotten at the track and on the dyno, I have started looking for ways I can optimize tune for WOT. I heard about doing "plug cuts" before but never took the time. This time I did. Very revealing. Looks like its running "a bit" rich and that I have some fuel to take out. Next step is hooking up my ZT-2 at the collector. My suspicion is that the WB at the dyno is on the lean side because its at the tailpipe. Using my WB at the collector should give me a more accurate reading. Attached is a pic of an NGK BKR7E plug on the left and an AC Delco 41-602 on the right. Last edited by XfireZ51; 03-08-2024 at 02:10 PM.