Mojave Hood scoop

[Dick]

Check out the big brain on Bry!

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[Bulldog4xfour]

The fake hood scoop has bothered me about my Mojave from day one. I even considered trying to trade my Mojave hood for a Rubicon hood. The 79 series Land Cruiser uses the hood scoop to cool the oil for turbos. I was thinking about routing a cooler there for a hydraulic ram steering set up. I wish that S&B would make a functional scoop like they did for the Rubicon.

 

[Dick]

@Bulldog It only takes About half hour to open up the scoop, lots of people have done it, this wind howl, I think is just a thing with my truck, that I will eventually sort out. You can always give it a try. Cost to go back to stock would be minimal. ? That's a nice truck, BTW. I like that color.

 

[Hayduke]

damn... I thought this would be a thread about putting LEDs in my hood scoop.

That 392 thing looks cool. Isn't it on the wrong side though or something?

I still want to put lights in mine. Is that a bad thing? lol

 

[SargeDiesel]

A functional hood scoop is meant to draw air into the air intake.

Having it open and not routed anywhere is not going to net you anything other than noise and (like you said) pressure.

Exactly this
Im no engineer, but everything I have read on the subject on how airflow is created concerning air Inlet hood vents and engine compartment air outlets... there is a fine balance. From my understanding, just opening up or adding holes to the hood is only half of the equation. Has to be complementing in/out airflow... kinda like your exhaust, a little backflow is good.

Make sure to let us know if you are able to get any results, as in lower engine/oil/coolant temps... before/after ? Good luck.

 

[SargeDiesel]

Yeah, unfortunately that's just not what you get when you open a hole in that position on the hood. Closing it up is probably going to be your cleanest and best option. If you're worried about temps then look into installing the 850W fan

Or an additional oil cooler

 

[SargeDiesel]

A donut without a hole is a Danish.

Makes me wonder... what is the doughnut hole without the donought ?... just a hole ? Seriously though, a bag of doughnut holes is hard to beat... gota love some Dunkin Doughnuts... lol

 

[Dick]

Allow me to interject at this juncture, the surface area of the scoop, which is just a couple inches behind the radiator support, is a fraction of what the grille is. The entire front of the vehicle is a giant air scoop. The amount of air coming in the hood is a fraction of that coming through the grille, the difference is, the air coming in the scoop is not 210°F, like the air coming through the radiator, it's ambient. The fender vents are just window dressing and I'd be amazed if they vent anything at all, especially the passenger side. By design, the engine bay is completely sealed except for two, huge main air dumps on either side of the engine inbetween the block (exhaust manifold area) and the inner wheel wells. Hot air coming through the radiator, moves past the hottest part of the engine and is both forced out these two areas by more air coming in, and drawn out by ambient air flowing across the bottom of the vehicle. All I did, was add a little ambient air into the mix to move more engine heat away from the underside of the hood. I sealed up where the heater hoses enter the firewall and I have not heard the wind howl since.

 

[macntatsch]

As a former engineer it seems to me you’ve overlooked the obvious solution of adding the 392 to drown out the noise!

 

[Volt0]

This is what you should do with your Mojave hood scoop, starting around 10:45.

 

[Alpine Warthog]

This is what you should do with your Mojave hood scoop, starting around 10:45.

That 'ol WIlly's is cool!

 

[Dick]

I also want to point out that concerns about heat from removing the under hood insulation are completely unfounded, as all the plastic clips that hold the panel on are closer to the engine than anything, with the exception of the plastic intake manifold, and they don't melt.

 

[SSinGA]

The fender vents are just window dressing and I'd be amazed if they vent anything at all, especially the passenger side.

Could always add something like this to make the vents functional????
https://metalcloak.com/jl-wrangler-jt-gladiator-billet-fender-vents.html

 

[Dick]

Could always add something like this to make the vents functional????
https://metalcloak.com/jl-wrangler-jt-gladiator-billet-fender-vents.html

The vents are real, they just don't do much. Pop your hood and try to find the fender vents from the engine bay. Then look down at the ground on either side of the engine and you'll see where all the incoming air is exiting.

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