The question about the 170 GeV prediction is obsolete now.
But the issue:
to drive the Higgs mass to the lower bound, rather than to the upper bound, in an altered version of the noncommutative standard model
remains relevant and has been addressed indeed by an updated almost-commutative spectral extension of the standard model. This extension according to http://arxiv.org/abs/1304.8050 claims basically that:
[the] obstruction to lower [the Higgs mass] was overcome in http://arxiv.org/abs/1208.1030 simply by taking into account a scalar field which was already present in the full model which [was] computed previously in http://arxiv.org/abs/1008.3980. One lesson which [was] learned on that occasion is that [one has] to take all the fields of the noncommutative spectral model seriously, without making assumptions not backed up by valid analysis, especially because of the almost uniqueness of the Standard Model in the noncommutative setting.
Incidently this new neutral singlet scalar field (σ) comes originally from some Majorana term in the spectral action responsible for a type I see-saw mechanism implying existence of heavy right-handed neutrinos (http://arxiv.org/abs/hep-th/0610241). It is worth mentioning that this σ field can purpotedly stabilize the Higgs coupling and prevent it from becoming negative at higher energies thus make it consistent with its mass of 126 Gev, providing a vev for σ of the order of $10^{11}$ GeV compatible with the Majorana mass that could explain the actual neutrino phenomenology. This last choice of parameter can be interpreted as some fine-tuning ...