Anyone else doing Ram Air?

[WilliamFd55]

Ram air set up I made from a gas can. Not sure how I feel about it? Thoughts? Does it look out of place?

[muley]

I like it.

[Big Block]

Should bring in cool air. Looks good to me.

[truckster]

Looks good. What's the intake tube made out of?

[Larry Weaver]

thats pretty darned cool!

[Andy4639]

Cool sir! I like the fab work and the use of the gas can for the base.

More of a cold air though than ram air. Which are both better for the engine.

[Keith Seymore]

Originally Posted by Andy4639

More of a cold air though than ram air.

There is some ram effect there in front of the radiator support (which is why the radiator works, too).

K

[Andy4639]

Originally Posted by Keith Seymore

There is some ram effect there in front of the radiator support (which is why the radiator works, too).

K

Not sure what you mean by this but the cold air coming in is way more effective than the ram part is.

[WilliamFd55]

Tube is Commercial 4" Flex duct, I used exhaust wrap to hide it.

[stikshooter]

Very nice.

[demian5]

Holy Crap! Look at that upper radiator hose!

[KQQL IT]

Originally Posted by demian5

Holy Crap! Look at that upper radiator hose!

2010 ish silverado hose I believe

[67ChevyRedneck]

A "cold air" intake is typically an intake that's just been relocated to a cooler area under the engine bay. They usually pull in "dead air" that's surrounding them, but it's cooler air because it's farther away from the engine.

A ram air is forced air from the outside and because he went through the core support and is taking air from the front of the truck, I'd say calling it a Ram Air is fine and makes sense. The early firebirds (and even the late models) had Ram Air hoods that took air form the very front of the car.

The air flow would be significantly different if he just put one of those snorkle intakes behind the radiator support.

I like it, good job.

[67ChevyRedneck]

Yeah, I didn't notice it at first, looks like a carbed (or Fitech? style EFI) on a 5.3. I thought it was a plain old 350 at first glance.

[67 chevelle]

looks awesome , should work just as good as it looks

[Andy4639]

The cooling of the air is more important than the ram air effect if any on a carb or EFI system guy's.

A throttle-body-mounted air filter may look trick, but it ingests preheated under hood air from the radiator and the engine compartment. The best-running EFI cars breathe cold air from a front mounted inlet outside the motor compartment. The ram air effect doesn't even happen unless the vehicle is moving. How much depends on how fast your going.
The whole thing is about cooler air though and that is what he has coming in, so he is good.
Lot better than the guy's who just stick a tube over behind the head light with a filter under the hood anyway!
Blocking off the filter under the hood from the rest of the area helps but it's nothing compared to true cold air.

[davepl]

The "high pressure" area you refer to in front of the radiator... it's enough to move air through the radiator's huge surface area, but it's not going to supercharge your cylinders or anything.

In other words, you're going to pick up some power from the colder air, let's say 5hp. And you're going to pick up some 'boost' from the ram air effect, let's say 0.00001hp

Of course I don't REALLY know what the numbers are, but the "ram air" effect is pretty minimal. It's not zero, but close.

Nice fabrication btw!

[davepl]

I believe the power increase for temp is 1% for every 10 degrees, or that's what I read. Let's say you drop the air from 140F ro 90F, that's 5%. On a 300hp motor, that's 15hp.

But my point was whether it's 5 or 15, it's a lot more than the ram air effect, that's all I meant.

[engineer_gregh]

Very nice fabrication work, I like it a lot!!

[raggedjim]

Keith, I just realized your dad is Van Sizemore. I remember reading about his lightweight GTO in High Performance Pontiac back in 2003 or 2004. It's a great car with a heck of a story behind it.

I've had a few Pontiacs in my life, all I have left is a '79 Trans Am 400 4-speed and a 73 Firebird, but I dig the old Poncho's.

Rg

[harpo231]

I believe for every 20% you reduce air temp you can gain up to 6% hp if you do the carb/ injector mods/adjustments to match.

[Heavymetl]

Science it up! Use a multi tester and a cheap thermocouple to measure air temp under the hood vs in the intake system.

https://www.youtube.com/watch?v=tG8pjoe061k

I'm a believer in cold air intakes, especially at the track. It's not uncommon to see underhood temps in the 130 degree range before a run and that's a power killer. I mainly fool with EFI and all that sort of data is available within the software.

[CG]

To me I dont care about the semantics of whats going on with it. I think you did a great job and no matter what you call it you made something cool that helps not hinders your engine performance.

But after reading this thread if it was mine Id make a cool sticker to put on the wide black edge, something that is factory looking that says ... Ram Air for 67' or insert whatever your truck is.

[Hart_Rod]

Originally Posted by WilliamFd55

Ram air set up I made from a gas can. Not sure how I feel about it? Thoughts? Does it look out of place?

I think it look kewl, . My only suggestion would be to screen it to help reduce the amount of trash and debris you get in the engine compartment. Also, be wary of driving it in heavy rain, you will water down you filter.....

I built this setup for the Farm Truck. I'm not sure how much HP I gained, but I know it reduced my IAT's by 15 to 20 degrees. I need to do something similar to my Suburban, but I've pretty much run out of real estate under the hood...