sorry all. the 2808 was my old motor upgraded last summer to a 2812 850 kv 2.3 oz. 160 watt 28 x 29mm. 4-11amp 14amp max 15 sec. 1.6 in.oz./amp. This throws the #s of some. speed was calculated mathmaticaly @ 12mph for the 980 taking into acount a fair amount of sag for the older pack, so 10 still isn't far of. With a fresh pack 66/16 gear I can't run fast enough to keep up while holding the remote, if my hands were free I could.

***Also found another possible motor looking for opinions e-flight six-series 28x36mm 2.9 oz. 2000kv 6-pole 26amp 32amp burst 15 seconds. only listed for 3s, but 2700kv version is listed for 3s also. the 2000 on 4s would be less rpm than 2700 3s.

considering going 4s anyway 5s works, temps ok so far, but when something goes wrong (bad cog, part throttle abuse whatever it heats fast). Also I read the thread about finsters wife with the M.M. 5s failure. Also looking at flight power batts. 2170 is the smallest pack I found with 25-50c rating 4s is almost 8oz. 5s would be to much weight. According to the graphs this cell averages almost .2 volts per cell higher than there 20-30c packs. 3.5x4=14 3.3x5=16.5 only giving up 2/3's of a cell worth of voltage, and no longer pushing luck voltage wise. Thanks to Jhautz and Cemetery gates for showing me it can be acomplished on only 2 or 3s. 4s should be enough to make it exciting on our tracks.

Please give thoughts on the Six-series motor. I know the 6pole is like running a 2 pole with 3 times the kv from the speedos stand-point, but right now I'm running an out-runner (not sure how many poles, but alot, on 5s) also have seen more than one c.m.8000kv on 3s so the mm25 can keep up.