  We investigate the collapsar scenario for the long gamma ray bursts. The
energetics % of explosions in the $\gamma$-ray band are consistent with the
binding energy of a progenitor star. The events duration times, lightcurve
profiles, variability, and connection with supernovae, are still subject of
many studies. In our scenario, the evolved progenitor star is collapsing onto a
spinning black hole formed from the compact core. The accretion via
rotationally supported torus powers the ejection of relativistic jets. The
rotational energy of the black hole is presumably transported to the remote jet
and mediated by magnetic fields. The rotation of pre-supernova star is a key
property of the model. In our study, we investigate different accretion
scenarios and various distributions of initial angular momentum in the
envelope, that affect the spinning up the black hole and its mass increment.
