My engine is 5efhe now with all stock internals plus 4efte inlet manifold,throttle body,fuel rails,injectors. i am doing 5efhte project high compression turbo.aiming for 7psi boost.the turbo is tdo4.and all other internals are stock.using the 5efhe stock pistons. the injectors are 295cc as from 4efte i am doing my own base map. as i have known 14.4psi is atmospheric pressure below that is vacuum and above that is boost. i want to know more about the map tables.there is Ignition map for retarding the ignition timing fuel map, map for adding or removing fuel with the help of on board map sensor fuel map, maf for adding or removing fuel with the help of on car's map sensor output voltage maf map for claming the car's map voltages for hiding the boost O2 map for adding fuel to closed loop operation i know that for every psi of boost it is recomended to retard ignition by -1degrees and add 125% fuel. but the problem is how to map the fuel map at a same load and increasing rpm breakpoints?? as my map have the same fuel map values accross all the cells in same load. This is a fuel map for 1nzfte @7psi.my friend owned it.it was 144whp and ecu is same as mine. as you can see above, at 5psia load for 300 to 2200rpm the value is -25. then for 2400 rpm its -24.2 and for 6000rpm the value is -20.3 but the map i have created according to the rules, it has same value for all the rpm breakpoints. can anyone shed a light into this!! ??