MrDude_1

iTrader: (4)

how do you calculate the VE tables with the extra variable of cam angle? do they continue to use the same engine model? is it just a "VE" modifier table based on crank angle?

anyone have any info on how they do it?

RedHardSupra

iTrader: (1)

i've seen it in hondata systems, they basically have multiple ve and spark tables for the different cam profiles. i haven't seen how they deal with continuously variable lift/timing (porsche and toyota, and i think the bmw vanos system). anyone played with these?

MrDude_1

iTrader: (4)

well, on the older honda Vtech systems, i would think its simple.. one VE table for the small lobe, one for the high lift lobe... it just snaps that pin in, so its one or the other.


but this GM system advances and retards the cam.. so at any specific RPM/MAP point the cam could be anywhere in that degree range, depending on other factors..

im just curious how they do it...