I have read and studied several tutorials online showing how to tune the VE table to dial in AFR.
I had a 5.3L 862 heads and a LS9 cam running 7 to 8psi boost and had dialed in the AFR to give me .75 to .8 Lambda under full throttle. VE in the 315 KPa area was 190. 19degrees timing. Car runs 6.0's in 1/8th.
I changed the cam to a LJMS Stage 3 Turbo and BTR .660" springs and the tune changed to .9 Lambda under full throttle. What was weird was the boost shot up to 13 PSI but the car ran a 6.0 again.
Am I to take the .9 Lambda and divide it by .75 to get the percent increase to adjust my VE table? It seems to be way off considering I just changed the Cam, (+20%)
Thanks,
Greg