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woodguy said:that os18tm is that good???? I've reading reading up on that 3.3 looks fast...have you seen one run or run against one....and why stay away from the t-maxx
olds97_lss said:OS engines have treated me well over the past 6 years. TRX engines have not. Granted, the only two TRX engines I've had was the 2.5 in the maxx and the 2.5R in the revo. The one in the maxx was flat out junk. The one in the revo just annoyed me a lot. Air leaks, unable to get a stable tune for more than a tank at a time, burning up plugs, running hot... just to aggravating for a "fun" weekend hobby.
The OS on the other hand... holds a tune all day long, way more power than I can personally handle, starts easy, runs cool and sounds mean. Even with the stock pipe, it has a throatier exhaust note to it. To make it controllable, I actually dialed the throttle to about 75% being the max.