Reverse Flow Cooling System Engine Diagram. Direction of coolant flow in an e30 m42. A reverse flow cooling system circulates coolant through the cylinder heads before the engine block improving heat transfer in the engine and radiator and allowing a higher compression ratio for increased power if it was so good in 96 that this feature was one of six features that was highlighted about the technical features of these cars.
Once clear water is coming out of the system the hose is reconnected and a. The system needs topping up from time to time. Later cars have a sealed system in which any overflow goes into an expansion tank from which it is sucked back into the engine when the remaining liquid cools.
Cooling system diagram showing flow paths and component.
The vapor instead will remain trapped around the cylinder head where it will become super heated and in all likelihood melts your engine. To get a traditional sbc to work with reverse flow cooling kinda requires a bit of re engineering. Diagram s drawings exploded views for 1995 f body unless otherwise noted reverse flow cooling systemone reason why the new engine performed better was the reverse flow cooling systemby routing the coolant to the cylinder heads first and then the block the engine could handle a higher compression ratio and maintain more consistent cylinder head. In a reverse flow system the coolant flow not strong enough to expel the vapor from the cylinder heads down through the engine block and out to the radiator.