lt1 obd1 changing injector to ford 42lb green tops..what all i need to chane in tune? and how to change ve tables for the new injectors?
lt1 obd1 changing injector to ford 42lb green tops..what all i need to chane in tune? and how to change ve tables for the new injectors?
ve tables never have to be compensated for larger injectors.
just change your injector constant and injector offset vs. voltage table, if you can find that data.
those are some friggn giant injectors for an LT1, what exactly are you building?
well with out changing ve tables ve table at wot is maxed.. 99.6 on 85 90 95 100 tables
just building a heads and cam for now.. getting the 42 for good deal from a racing friend and they leave room to grow
do you have a data sheet for the injectors?
is this a 1992-1993 speed density build or...
bigger isn't always better when it comes to injectors, just warning you.
anyway, volumetric efficiency is an airflow mapping, and changing your injectors alters fueling, not airflow. changing your injector size shouldn't mess with your VE much at all if your injector constant and offsets are right.
its a speed density tune.. not getting injector till thursday.. but im going bigger on my build over the winter.
Last edited by criticalx; 10-21-2014 at 06:28 AM.
cam only my injector was maxed and now i added ported heads... its bad lean.. what do i need to change for fueling?
Smaller injectors!!! 42s are good for over 550 hp maybe as much as 600 depending on BSFC. Only way you would need that would be FI or dry N20. 30-32s would be much more appropriate for a hot LT1.Originally Posted by criticalx
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