Hood scoop vent

[EvilWS602]

Hey guys. My father and I have been fighting the heat. Bronco been getting a little hotter than we would like. We would like to vent the hood to help get some of that hot air out. We have the fiberglass hood with raised cowl/scoop with the inset portion that looks like it would/should be cut to make it optional scoop. Has anyone cut these and put a grill insert in? If so where they purchased or custom made? We are also thinking about cutting a long skinny one on the back side to suck out the hot air. Any help is appreciated

 

[Yeller]

First question really needs to be how hot is “hotter than you’d like to see”? Is it verified, automotive gauges are more or less just hints at what is going on and not near exact.

As for vents the best results really are from ventilated inner fenders next to the engine. Along the back of the hood near the windshield is really the wrong place due to aero dynamics, it pushes air in not sucking it out.

 

[EvilWS602]

First question really needs to be how hot is “hotter than you’d like to see”? Is it verified, automotive gauges are more or less just hints at what is going on and not near exact.

As for vents the best results really are from ventilated inner fenders next to the engine. Along the back of the hood near the windshield is really the wrong place due to aero dynamics, it pushes air in not sucking it out.

Its getting mid 230s event creeping towards 240s. we were thinking of cutting the 2 indentions of the scoop to allow air in and like a long 1' cut along the back to create a draft therefore pulling the hot air out from the engine bay.

 

[4xfun]

I hope that you are talking about air temperature and not water. If that is the engine temperature, you need to back up and look at your cooling system or your gauge. Your water temperatures should not be that high unless it is stressed. There could be issues with a temperature sensor, gauge, air pocket, thermostat, radiator cap, low coolant, wrong coolant mix, clogged radiator, damaged fan, collapsed hose, slipping belt or pump issues. Other culprits could be your timing, air/fuel ratio, and exhaust leak. You did not mention what engine you had or what was going on when the temperatures reach that high.

As for the draft, broncos are bricks and the aerodynamics are strange. Tape a couple of strings to your hood and windshield and watch them go in different directions. You also do not water dumping down on your electrical components and engine.