[lincpimp]

I will put money on the fact that the e savage will be no lighter than my hacker emaxx. Listen to sike, he knows what he is talking about!

In any case, whatever the mfg says about glow motor equivalentcy (sp?), you are asking this motor to start with a heavy load. The mfg rates an outrunner with a prop. We do not use props in car (well I have!). Keep in mind the roll out of the gearing and the load imposed on the motor. Not to mention the voltage and current spikes thru the esc.

JRH made a good point with motor weights. Plus you need a decent sized lower kv motor to make this work. I am seeing that 4s is just not really the best way to go with outrunners. Motor voltage, lower kv, and less amp draw makes for a better system, inrunner or outrunner.

An electric vehicle will weigh slightly more than a gas vehicle, if you intend to reap the benifits of electric (longer runtimes). I am sure that you can find a good 25--30c lipo in the 2500 mah range that will give you comparable runtimes to a single tank nitro run, and weigh in similar.