Making Ram Air

Reply Subscribe

Thread Tools

Search this Thread

Jul 26, 2006 | 05:01 PM

SuperSnake

Thread Starter

Post Fiend

Joined: Jan 2006

Posts: 14,941

Likes: 4

From: North of Normal

Making Ram Air

I been thinking about this I know only a hand full here will remember ram air from the late 60's and early 70's. I have been thinking about getting a front air dam for my 86 F250 and remembered about the ram air system that Hurst came out with in 68 and was thinking about building something similar for my truck using the cut out for fog lights as a ram air system.I know the colder air will help a little more horsepower,but will it help with gas mileage?

Jul 26, 2006 | 05:53 PM

swamp fox

Senior User

Joined: Jul 2006

Posts: 132

Likes: 0

From: Durham, NC

This may be a tough road to go down. What you're talking about doing is actually more of a Cold Air Induction system than Ram Air. For Ram Air, you'd have to have hood scoops right over the carb with a sealed nest with the base of your air cleaner and a direct path into your air filter from the hood scoops without having to go through a bunch of bent piping.

Jul 26, 2006 | 09:18 PM

SuperSnake

Thread Starter

Post Fiend

Joined: Jan 2006

Posts: 14,941

Likes: 4

From: North of Normal

Quote:

Originally Posted by swamp fox

In 68 when they came out with the Hurst Olds 442 it was called Ram Air cause it had 2 scoops bolted to under the front bumper.But it really does the samething but a cold air system is still under the hood.

Jul 28, 2006 | 03:15 PM

460me

More Turbo

Joined: Nov 2003

Posts: 747

Likes: 26

Something like this:

http://ramairbox.com/

I like to think of these things as a freash air intake.

Jul 29, 2006 | 04:02 PM

ClydeSDale

Laughing Gas

Joined: Apr 2003

Posts: 837

Likes: 2

From: Minnesota

Quote:

Originally Posted by 460me

Something like this:

http://ramairbox.com/

I like to think of these things as a freash air intake.

I saw this set up a few years back, was shocked at the $$$, and set up my own
by using HVAC ducting and 4" aluminum flex tube.

Picked up an extra air cleaner base, removed the snorkel and
fitted an intake using a reshaped 4" fitting something
like this:

I installed something like this on the radiator support after
removing the stock intake and cutting out the opening bigger to fit:

Once the intake and inlet were installed I connected the two using the four inch aluminum flex tubing.

I now have a clear flow 4" tube that draws air from immediately behind the grill and directs it directly
into the air cleaner. Call it "ram air" or "cold air induction" but it is drawing colder air in higher volumes
from a slightly pressurized location. Like the ramairbox setup but LOTS cheaper.

Clyde is carb'd but I'm sure this idea can be creatively adapted and could even bve enhanced
with a little insulation to keep the underhood temps from heating the air through conduction ...

__________________
Roger

Clyde S Dale, my chestnut brown & tan 5th wheel workhorse is a
1984 F250HD XLT RCLB 4X2 8600 GVW
460 C6 3.55's
68,500 original miles (and counting)

Jul 29, 2006 | 04:06 PM

SuperSnake

Thread Starter

Post Fiend

Joined: Jan 2006

Posts: 14,941

Likes: 4

From: North of Normal

Quote:

Originally Posted by ClydeSDale

I installed something like this on the radiator support after
removing the stock intake and cutting out the opening bigger to fit:

Once the intake and inlet were installed I connected the two using the four inch aluminum flex tubing.

Sweet Looks inexpensive did your MPG pick up?

Jul 29, 2006 | 04:35 PM

ClydeSDale

Laughing Gas

Joined: Apr 2003

Posts: 837

Likes: 2

From: Minnesota

Not so that you could notice. I'm usually towing so wind direction usually has more effect than anything else. Neighbor saw it, tried it on his 1980 F100 and claimed a little bump. I had dual intakes set up but soon saw that a single was MORE than adequate. I just feel better knowing my engine is getting all the cool air it wants. Looking at the stock setup will make you wonder how it ever drew enough air through it to work. Accordian ripple air tube just creates drag and turbulence.