rear fender air intake scoops, who's done it, any pics.?? Options

[Elliot Cannon]

The only problem with scoops in the rocker panel is picking up a lot more dust and water from the road surface.

For what it's worth, that has never been a problem with mine.

[nsyr]

Does that help with getting air into the engine. I have always felt that the engine compartment is a low pressure zone, starving the engine for air at higher speeds.

[VegasRacer]

Sister.

[damesandhotrods]

Does that help with getting air into the engine. I have always felt that the engine compartment is a low pressure zone, starving the engine for air at higher speeds.

Porsche didn’t seem worry about it with 914-4 even when they raced when it when it was new. They didn’t open up the engine lid until they raced the 914-6…

[57lincolnman]

I am thinking about doing this.

They would be small so it doesn't look like a rice racer, I like the idea of getting fresh air into the engine bay.

who's done this?? got any pics??

I put a small scoop recessed into the rocker panel on the passenger side. It's low and very discrete. I took the stock rockers ones off and put on the ABS ones that say PORSCHE on them. It was easy to cut out the section I needed for the scoop. Just to make sure I had clearance in that recess between rocker and face of frame. I have A/C so I had to reroute the hoses to get the clearance. I suppose you could use it with the stock metal rocker but it would be harder. I put a hose connection on the back of the scoop that is routed underneath and goes to an auxiliary oil cooler with a shroud to make sure all of the ducted air blows across the oil cooler. It works great in the summer. I live in Atlanta and in 90+ summer temps the oil stays at 210-215 tops. In cooler weather like now I close it off with a rubber drain stopper (not very elegant but it works) because the oil wouldn't get to 180 otherwise. I can send pics if you like.

[Elliot Cannon]

Does that help with getting air into the engine. I have always felt that the engine compartment is a low pressure zone, starving the engine for air at higher speeds.

Mine is ducted to an oil cooler below the rear trunk.

[Chris914n6]

Here's something I was playing with. Enters thru the little grilles.

(IMG:http://www.914world.com/bbs2/uploads_offsite/lh4.googleusercontent.com-431-1416031342.1.JPG)

(IMG:http://www.914world.com/bbs2/uploads_offsite/lh3.googleusercontent.com-431-1416031343.2.JPG)

(IMG:http://www.914world.com/bbs2/uploads_offsite/lh4.googleusercontent.com-431-1416031343.3.JPG)

(IMG:http://www.914world.com/bbs2/uploads_offsite/lh6.googleusercontent.com-431-1416031344.4.JPG)

[tomeric914]

Not 914 but:

http://forums.pelicanparts.com/porsche-911...roof-scoop.html

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-9101-1416060389.1.jpg)

[effutuo101]

Here is a pic of mine. I have to finish the inside boxes for the air intake.

[Mike Bellis]

[Dave_Darling]

Here's something I was playing with. Enters thru the little grilles.

Reminds me of Charlie Davis' setup:
(IMG:http://www.914world.com/bbs2/uploads_offsite/members.rennlist.com-121-1416073111.1.jpg)

Read about it here: http://members.rennlist.com/chuxter/TempTests.htm

--DD

[boxsterfan]

For anyone who has used the Naca duct on the rocker, how did you route back behind it?

I was often thinking that when I restore my car I wanted to get rid of the jack posts completely on both sides. Put Naca ducts in the rocker panels where those would be. Cut a large enough hole in the long (where the jack post plate used to be) and connect to the tubes (normally used for heat). Either route those up to the engine bay for fresh air intake or point them at the trans or external oil cooler.

Then just put in electric heat. Simple. (IMG:style_emoticons/default/lol-2.gif) Just kidding about electric heat. Maybe heated seats though.

[57lincolnman]

Here is my solution. NACA duct cut into rocker panel with hose connection routed to auxiliary oil cooler. No problems with dust or water. Subtle and powerful. The NACA duct is very efficient to suck in air.[ Keeps oil at 210 degrees even on hottest days. In the colder months I close up the duct. attachmentid=475909]

[57lincolnman]

For anyone who has used the Naca duct on the rocker, how did you route back behind it?

I was often thinking that when I restore my car I wanted to get rid of the jack posts completely on both sides. Put Naca ducts in the rocker panels where those would be. Cut a large enough hole in the long (where the jack post plate used to be) and connect to the tubes (normally used for heat). Either route those up to the engine bay for fresh air intake or point them at the trans or external oil cooler.

Then just put in electric heat. Simple. (IMG:style_emoticons/default/lol-2.gif) Just kidding about electric heat. Maybe heated seats though.

I posted pic that shows the hose routed to an auxiliary oil cooler that is shrouded to maximize air flow across the oil cooler. To get the space needed, I used Tangerine Racing street exhaust system which gives more room on the passenger side for the oil cooler to be mounted in a near vertical position.

[Jetsetsurfshop]

I did this for my rear cooler too. Check post #43 for route pictures. That's three inch duct work. I moved my oil cooler to the front of my car. May keep this for a trans cooler, not sure yet.
http://www.914world.com/bbs2/index.php?sho...27027&st=40

[carr914]

Here's something I was playing with. Enters thru the little grilles.

Just go through the Sail Panel

[veekry9]

Sure,with side mount rads,intercoolers,you would need inlets/scoops/ducts.

http://www.fiero.nl/forum/Forum3/HTML/000116-28.html

[aircooledtechguy]

Apples and oranges here since my car is not a Porsche body, but these are the NACA ducts on my car.

(IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-9730-1416243825.1.jpg)

I'm no mechanical engineer nor did I ever take a physics class. . . With that said, the NACA ducts on the Squarsche work better than I had anticipated. (IMG:style_emoticons/default/piratenanner.gif)

Before the latest revamp of the car with stock cooling, I would see a spike in head temps above 60mph (400F and climbing). Once I added the NACA ducts, head temps usually sit at or below 350F (have never gone over 375F) and above 70mph, the engine runs cooler 290-325F (even with the higher engine speeds and higher load).

NACA ducts not only work well, but in my experience they become more efficient with speed and just work better and better by design.

[mr2by4]

http://www.ebay.com/itm/Porsche-914-NO-RES...=US_Cars_Trucks

Big scoops on a v8 conversion.

[GeorgeRud]

Why not go all out?