I can't recall if I have seen an upgraded motor video for the Revolution series. They have more of a direct drive gear box so I am wondering how fast that will make them. This also might make the need for added weight to hold the train to the rails. I am not that familiar with the Revolutions but there doesn't seem to be enough room under the shell for a larger battery pack without placing it in a trailing car. My suggestion is to skip the higher voltage mod as that entails more work and just try an upgraded motor which should give you more speed. Even more that the Plarails and original Trackmaster due to the gearing and the fact that Revolutions uses 3 volts. Not sure how much an upgraded motor will drain those two little AAA batteries.
Many of us use the Tamiya line of motors for our upgrades. You can check them out on the Tamiya web site to get specifications, including voltage and RPM, on all they have to offer here http://www.tamiyausa.com/items/mini-seri...tors-43050
Many of us use the Tamiya line of motors for our upgrades. You can check them out on the Tamiya web site to get specifications, including voltage and RPM, on all they have to offer here http://www.tamiyausa.com/items/mini-seri...tors-43050