How reliable do you think the exhaust back pressure sensor, and map
sensor are? Mainly in accuracy. Ive been thinking quite a bit about back pressure vs boost, (and no, I dont make any power) But Im about to replace the injectors with ACs, and possibly a gtp38r if necesary. Everyone seems to say the ratio of back pressure to boost gets high on the OEM turbo, but at 24 psi
, pulling a trailer up a hill tonight, AE
told me both were at 40psi (includeing the 14.7psi for ambient) And my mechanical boost gauge agreed, at 24psi. They both also agree with key on, engine off (ebps
) Seems mostly its in a 1:1 ratio upto 24 psi
(other then when initially spooling up). I didnt go above 24, because I dont have a map
fooler, but are my results skewed information from the ODB port? The only mods to the turbo and exhaust would be the ATS housing, and HFO, and a 4 inch exhaust. Oppinions?