I think I read several times on here with cooling issues when using a shroud & mechanical fan, the fan should be either 1/3 of the way into the shroud or 1/3 the way out. I don't recall which. I have 2 electric fans and hate them. They are noisy & pull way too much juice for my liking. At idle they pull 20 amps each. I bought the car with 1 electric fan & no shroud as it was a race only car. I don't have any original shroud or factory fan. Good Luck!