Hello everyone
I attached my tune file for my machine, it is running a completely stock 2002 5.3 Sierra doner engine with custom long tube headers for my chassis and engine location.
I have only made changes from the stock file that suit the new chassis "manual transmission, 2 electric fans" and disabled abuse mode.
That file was converted to speed density which made several changes on its own then I made a some deletes on O2 sensors and disabled LTFT. Nothing else has been adjusted on VE table. I took this machine of a shakedown drive today and it did really well but definitely could use some tweaks.
Only help seeking so far:
Upon startup the idle will usually jump up in the 2.5k sometimes 3k rpm and stay for awhile. I will cycle the key and stab the throttle a few times and then it will settle down in the 550 rpm idle. Once the idle rpm will get down under 1k it will stay there every time every restart. I have only put 4 miles on it today running quite well with a few misfires.
The engine has the intake manifold on backwards because it is in the middle of a Corvair, has a stock 195* thermostat, no MAF or O2 sensors, wired in a IAT sensor in the short inlet tube after the air filter, alternator is the only belt driven drag. I used the stock harness that I modified and integrated into the chassis harness.
This LS swap replaced a DZ 302 that was already in the middle of this machine, the old small block was not easily street driven I wanted to get away from that and gain EFI. I used a Mcleod thick flywheel and an 11" clutch on this 5.3 and bolted to the Lakewood bell that is on my Crown conversion corvair transaxle.