02-19-2005, 03:12 AM
Quote:The engine is strong seemed fairly easy to tune even though this is my first one ever. The engine does run hot 270-290 but I'm told that a different head will bring that down 10 degrees.
The first engine is almost always the hardest to "Tune", because you haven't gotten the feel for tuning yet. I couldn't get a good tune on my T-Maxx when I had it. One of the guys from the board came out with a new Savage, and asked for help tuning it. In a very short time, I had his engine running great. In general, Big Block motors ( .21 and larger) tend to be a bit more forgiving with tuning. As for the temps, My Savage ran great in the 250-270 range. A larger cooling head can bring down temps, but you should tune with the stock head, then switch to the larger head, keeping the same tune. Some people think that running a bigger head will let you lean out the engine more to bring temps back up, but this also results in lower lubrication, which shortens engine life.
From what I have heard, the Revo engine is easier to tune than the Maxx 2.5, I'm still not sure if this is because of the additional engineering Traxxas put into the engine, or the experience people have gained from tuning other engines since their first 2.5. Like I mentioned earlier, the more engines you tune, the easier they become to tune...