How to improve (N-Scale) Alaska F7A engine with McKinley Explorer trainset

[steveeusd]

Hello Everyone--

I want to improve the running capability of the entry level mechanism powering the N-Scale Alaska F7 that came with the McKinley Explorer trainset.  Ultimately, I want to lash up two powered units.  One idea is to place the Alaska F7 shell on a Spectrum Santa Fe chassis.  But, I don't know how well the two will fit.  From pictures I've seen, it looks like some kitbashing will be involved.   If I stay with the original chassis, I think I will cannibalize two other power units and replace the traction tires for better electrical contact.
Is there anything else I can do to improve the running quality of this engine?


Thanks for your input.

Steve

[GlennW]

You could try putting the F7 shell on a LL GP20 mech. There may be some old pictures of this over on the TrainBoard or Atlas Forums. This was done a few years ago when a retailer was dumping their LL GP20's. The GP20 has a very nice split frame design, similar to Atlas or Kato.