so dry sump oil system, electric or engine driven scavenge pump,? the electric scavenge pump sucks the same regardless of r p m. the engine driven scavenge pump changes with r p m. am using the stock engine oil pump. stock oil filter position . using a dry sump pan. remote oil tank and in line cooler. also, any thoughts on the in line oil cooler position, between scavenge pump and tank, pressure side ? or out of tank on the inlet to engine oil pump. my thought is between scavenge pump and tank, to cool the oil before the tank. small displacement, 2 cylinder. not a ton of horsepower would the engine driven scavenge pump rob any kind of power away . were the electric pump uses no engine power.. thanks bob