TP Vs RPM 'curve'

[vn_luke]

Hi Guys,


Does this seem right? (note how the cells accessed seem to go the right then back to the left) i.e. load rises then falls..

the car has a 3000-4000rpm stall converter and turbo spools at around the same time (full boost @ 3500 rpmish)

I suppose it could be a boost spike? although the gauge doesn't seem to move once it hits 13-14psi

[RB30-POWER]

combination of boost spike and once the engine is past the peak of maximum volumetric efficiency airflow will fall.