GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE

Kastley85891

Engine rpm right hand column
Injector latency/ engine load / etc etc (which ever software you are using ) - top row
Cross ref fuel targets - down and right 14:7.1 = 1 Lambda (leaner) 11:5.1 = richer.
ECU uses front o2 sensor in closed loop to adjust fuel trims to make target, generally ECU's will have switch over points from closed loop to open loop , usually open loop will be the meatier fueled/higher load areas of the map.
Generally you will run leaner fuel, obviously for idle, partial throttle, cruise loads etc, then have a smooth transition in high load areas to make best power safely, tuners usually throw a little more fuel in at higher rpm on higher load cells to help with knock retention.



Basic but should help.

I beleive the Z fueling algorithm is more of a CL system for all, from my experience it seems to hit target pretty well.

Heres an edit from my turbo charged E85 running vehicles fuel map, this one uses rpm and direct engine load for cell target fueling, hope this makes things clearer, this ECU did have a deddicated switch point from CL to OL fueling.


Heres is stock rom in COBB format for the Z, this is Lambda based not AFR , same theory though.



Back on track - Sam that install rate and timeline is very resonable, seems like a real sound product here. good job

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2850 lbs and 375WHP