Coyote top mounted air inlet

[lomdel]

As you know the Coyote style engines use a front mounted air inlet which requires some creative thinking to get cold air into with pipes, air boxes and filters. Has anyone found or developed an air intake/filter housing which sits on top of the Coyote engine to utilize/redirect the cold air directly from the hood scoop? That is actually what the hood scoop is there for, to get clean cold air into the engine, but these type engines do not benefit from that...

[Dumpling]

Originally Posted by lomdel

...That is actually what the hood scoop is there for, to get clean cold air into the engine, but these type engines do not benefit from that...

Not sure if that's true except maybe while stopped in traffic. Laminar airflow over the hood would just ignore that tiny scoop.

[olddog]

The question was cold air, as apposed to hot under the hood air. You are talking ram air affects.

If the engine intake is sealed to the hood scoop, the engine will pull 600, 700, .... (however many CFM the engine can suck in) through that scoop. That air will be cooler than the air under the hood.

As for ram affect, it will be of some help, but not much. A 1" x 12" scoop with 600 cfm going through it would be an air velocity of 7200 ft/min or 82 mph. If the car was going 82 mph the engine would no longer have to accelerate the air up to speed and that would help the engine. Above 82 mph, the scoop would push a little air into the engine.

This is just an example, you're numbers and results would be different.

The cold air is more important than the ram affect. 77 F air vesres 140 F air is 12% more dense. If you can get 12% more air into the engine you can burn 12% more fuel, and make 12% more power. The best hood scoop in the world is not going gain you 5% air density at highway speeds.

[Dumpling]

Originally Posted by olddog

The cold air is more important than the ram affect. 77 F air vesres 140 F air is 12% more dense. If you can get 12% more air into the engine you can burn 12% more fuel, and make 12% more power. The best hood scoop in the world is not going gain you 5% air density at highway speeds.

The Coyote design actually allows you to bring cooler air to the engine, just duct air from anywhere.

The XKE hoods were slotted to allow warmer underhood air to vent out, and because they were angled back, at speed the airflow out would increase with speed.

Personally I think hood scoops are for poseurs.