MPH Carbon Fiber hood with reverse scoop and NACA ducts!
 

So Joel Marsh from MPH (http://www.marshpowerhousefab.com/) just made me a one off carbon fiber hood with reverse scoop and functional NACA ducts! He is soon to be making these for production availability! Check it out mounted on his car. I go up to pick it up soon! This will be for some serious heat extraction for my Driven Fab EFR turbo kit and with functional NACAs, I will be keeping cool air flowing over the coil packs.

OE hood weighs in at 14.2lbs with many carbon hoods being many pounds heavier than that. This hood is weighing it at 8lb12oz

http://i.imgur.com/ibWyGZOh.jpg
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Nice!

The fact that it's functional and lighter is great, but how much would one of these cost?

"Chasing speed with patience"

EDIT. Got an update, Price point will be $1300 plus freight.

So the photos above are actually a couple weeks old. Heres a fresh update from Joel. Actual CFM and temp data on the NACA ducts. WOW. Im impressed. So while the reverse scoop is actively pulling out hot engine bay heat, these NACAs are forcing cool ambient air down below. My setup will drop these vents down by the coil packs but could also be routed to brakes, in the cabin, up girls skirts... WHERE EVER!

http://i.imgur.com/I7Gn3tUh.jpg
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http://weknowmemes.com/wp-content/up...bitch-meme.jpg

Also... for anyone who is saying, "what the hell is a NAKA DUCK". You may recognize these off of a GTR hood. Well NEWS FLASH, ASSHOLE! Nissan didnt invent the NACA duct. NACA did. Known today as NASA (you may have heard of them).

Check out this informative link and learn you something today. http://www.formula1-dictionary.net/naca_duct.html

https://i.redd.it/b08hjl7f37jy.jpg

Got a price point update. its $1300+freight.

Simple and functional. I like it.

Cool!

I've always wondered with these vented hoods, if water going into them when it rains is an issue.

No more than it being an issue on any Evo, Ferrari, Viper, Vette, etc.

Wondering if this will have clearance with the FBM Turbo Kit. Seems as though that vent drops pretty far down.

Wondering the same thing about the Edelbrock SC kit/intake. I really like the look of this hood (as far as all the vented ones go).

I want one!

Seems like a vague non-answer.

So, in the specific context of a twin, there's nothing in the engine bay that will get damaged by getting water on it?

Fuse box and alternator but there really wouldn't be much get at them with the position of the opening. Not a real concern.

Likely. Go to my build thread and look at my clearances. I have a relatively high turbo setup. This hood was made to fit on my car so if you have anything sticking up higher than I do, it will interfere.

I would say very likely since the Edlebrock sits so far back in the bay, albeit tall.

The vent scoop is a 3" drop and the opening is just in front of the pulleys/belt.

How far back is the lowest part of the drop from the leading edge of the hood? It looks to be around 8" or so. And how wide is the vent? 15" or so? On the Edelbrock, the airbox and MAF housing tube would be the main cause for clearance concerns, I believe.

On a stock car? No.

Aftermarket parts? Depends on the part.

FYI, that radiator exit duct would work a lot better, if there was a duct from the back side of the radiator, up to the hood exit.

Makes me wonder about worst case scenarios though. For example, if I were to park on the street here in NYC and it happened to snow a ton. Snow would basically build up on top and potentially fall into the engine bay through the reverse scoop. Once in there, would the snow sitting on belts, pulleys, compressors, etc. not be damaging?

Looks like a damn good hood though, has my attention more than any other aftermarket one I've seen so far. Actually functional and not too gaudy (I'd definitely have it paint matched to OEM, with some bits like the scoop/ducts left in CF).

I wouldn't worry about that. I'd be more concerned about water dripping onto a hot turbocharger, or header.

A few well placed heat shields can mitigate that, as can just taping over the vent.

Since it's custom made, I'm sure that it wouldn't be too hard to ask for a removable cover for the scoop that has a smaller vent near the top, to close it off if needed. If it's cold enough outside for it to be snowing, you don't really need the duct to be fully open when driving.

Heres a sweet shot of the hood. Photo credit to Cisco.

http://i.imgur.com/GFfpFQD.jpg

Not sure and dont remember, Ill post some shots once I get it in my hands. Kind of annoying Joel isnt on the forums. I know its roughly 14"x3".

Agreed. May do that someday but in the meantime my turbo and plumbing all run in between the engine and radiator.

The opening is forward of the pulleys and belt so I dont think a mound of snow would do anything detrimental. I have Joel epoxying in some hexagon wire mesh on my opening to keep leaves and snowballs out.

Thats a sexy idea depending on the color. I personally love that effect on red cars.

Theres a lip on the opening. Would be easy to (or have Joel) drill holes for a removable plate. Joel is currently epoxying in hexagon wire mesh on mine.

@xkalelx is this a 2-piece hood that has been bonded together? (Inside/structure skin and outside/exterior skin.)

No. This is a full 100% carbon fibre part. No internal structure like the Seibon. Which explains the super light weight. Its only a couple layers thick. Joel also excludes all of the unnecessary ribbing/structure on the underside that are needed on a metal hood.

Any possibility of a lower priced FRP version?

Excellent question. I asked Joel. He said, "At this time, I am only doing full carbon and dont have plans to do a fiberglass version". He went on to say if you wanted to paint, he would take $100 off and not clear it.

Hope that helps. This dude is really only interested in making stupid light car parts. He just recently made a GTR rear boot lid that looks phenomenal and weighs nothing.

that's awesome.

Finally lol I'm here 👋🏻 I'm working on some parts at the moment but I'm gonna try and go through here later and answer some of the other specific questions and measurements. as far as the edelbrock goes I think it should clear fine with as far forward as the vent is. I'll post pics as soon as I can figure out how to reduce them down from my iPhone so it will let them post.

Confirmed fitment with the edelbrock supercharger today. It just barely touched the intake tube but was able to close with normal pressure and didn't touch until all the way latched. We also noticed the mounting brackets for his airbox were slotted and could have been moved down about an 1/8" and wouldn't have touched at that point. https://www.facebook.com/MPHfabricat...29530573844478

100% agree but with so many various setups it's kinda hard to make ducting that will work with everything but I've toyed around with the idea of making something to work with the factory rad, fans and support and then could be trimmed to fit various intakes or other obstructions. Would love to incorporate a v mount setup with this hood but that would likely be more of a one off project.

It doesn't have a full skeleton but there is a fully boxed perimeter skeleton that just goes around the edge. Because it is 100% carbon it is stiff enough that it does not require a full skeleton. Also because the perimeter skeleton is bonded all the way along the outside and inside edge completely boxing it in, the entire part becomes very rigid against twisting vs just having a full skeleton glued around the outside edge and spot glued around the center areas. This is a big part of reason the weight was able to be cut so low but still allow it to be a bolt on part with a normal latch, but it could also be made with a foam core skin only as a lift off hood.

Looks very nice & great to see how light it is.

Quick question. This cf hood latch to OEM or need aftermarket hood pins & latch?

Is it installed yet? Have you taken it for a high speed run? I have a lightweight CF hood and it has about the same rigidity as a potato chip. Very scary at anything over 75mph. I want a vented hood because I have a boosted car and the engine bay is hot AF. Please tell us your experiences in driving the car at higher speeds.

Any updates on testing, pics?

@MPHfab Ehem. I would happy to accept one of these hoods to test fitment with the Full Blown Motorsports kit. Heh. :thumbup:

EDIT:

WAIT A SECOND. You are in Dayton? I could quite literally come visit if you honestly wanted to test the hood on my car for fitment.

It does have a latch and that's all I personally use but it is always recommended to run hood pins on any composite hood.

There is a video posted to the Facebook page https://www.facebook.com/MPHfabricat...9824436148425/ of a string test going 80 showing it perfectly stable and I've had it to 95mph briefly off camera and it's just as stable. The carbon perimeter frame and the shape added with the vent are what keep it rigid as a whole while keeping it light and being 100% carbon helps the skin stay somewhat flexible without cracking or breaking but be stiff enough to not flop around from the air pressure.