Howdy y'all, im getting ready to fire up my turbo lq4 4l80 truck for the first time. It had the same cam but 1 7/8 long tube headers before (i could tell they killed some torque down low)
Mods-
Elgin 1839p
stock 317 head with valvesprings
t4 log manifold with stock driver side manifold
vsracing billet next gen 7875 turbo
bosch 210 injectors
twin walbro 450 on 10psi hobbs switch (still need to install but thats the last thing)
will be on e85 and coming from pump 93
efi source 3 bar map
i took the tune i had when it was N/A and i multiplied some transitionary rpm/load areas by about 20% and added at least 50% to the sections i extrapolated that would be in full boost. All i did to my spark tables was put in a soft limiter at 4400 as the timing was already fairly conservative but it ran good. I already added injector data from injector dynamics for id2000s and converted the tune to 3 bar map. Im mostly hoping some more experienced individuals could say whether or not im on the right track or if there are any gaping holes in this tune.
sd6 3 bar map bosch 210 soft limiter 4400.hpt