A motor that makes a hard hit at the launch to build a good ET will require a pump that can absorb the hit to make the HP reach the track. This must occur immediatly at launch. A lake boat setup for top speed does not need the immediate hit for the launch, it can sacrafice some of that hit for top speed later on down the lake. I will try to figure a better way to explain it , but thats the gist of it. Trade some launch for some speed. Power where you want it. TIMINATOR