Originally Posted by
musti72
Well, that "metal" pinch is there even when the engine is hot, so it tells us that there is a long way for it to be fully broken in, right? It has run less than 1/4 gallon so far.
Yes, at between 3/4 to 1 gallon (just like ezveedub said) the engine IS FULLY break in. From this point, the engine will be in highest performance. This superiority will last usually only 2 races. After that point, the engine's performance is going downward.
So, competitively speaking, it only last 5 races huh
