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air cleaner
https://www.slantsix.org/forum/viewtopic.php?t=15503		 Page 2 of 4
Author:  Avenger2040 [ Sat Dec 31, 2005 10:41 pm ]
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That sounds interesting for common engine bays, but since I´m using open element air cleaner I made a kind of Air Grabber system, so I find them pretty cool, also can make think that my engines is not a Inline six.

Also I´m trying to make a new hood of fiber glass with a tach cover and a better Air Grabber intake.
Author:  Dustenn89 [ Mon Jan 02, 2006 3:16 pm ]
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do you have any pics of what you are talking about?
Author:  slantzilla [ Mon Jan 02, 2006 5:46 pm ]
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Quote:
The open elements are worse for power.
I guess I'll take the one off my car then. And all this time I've been fooling myself that it actually made me go faster. :shock:

Does that mean that the clocks at the dragstrip have lied to me too? :roll:
Author:  emsvitil [ Mon Jan 02, 2006 5:51 pm ]
Post subject: 
Quote:
Quote:
The open elements are worse for power.
I guess I'll take the one off my car then. And all this time I've been fooling myself that it actually made me go faster. :shock:

Does that mean that the clocks at the dragstrip have lied to me too? :roll:

With a cold air intake you could have more power and go even faster....

8)
Author:  Jeb [ Mon Jan 02, 2006 6:11 pm ]
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Howcome most of the musclecars of the 60's had open element ar cleaners?
Author:  sandy in BC [ Mon Jan 02, 2006 6:15 pm ]
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I dont think so!
Every winter I put the closed system on my Suburban for the heated air thing when we are on the prairies in the real cold. This is a 4" cold air intake with hot air damper. The boys always report a loss of power after I change it over....even when they dont know I changed it over. The open air element makes way more power cuz your not suckin air down a pipe.

On our mudbogger I have to use a shrouded cleaner to keep the mud outta the element....the thing makes way more power without it.

,,,,,,and you dont get the cool intake shriek
Author:  SlantSixDan [ Mon Jan 02, 2006 7:05 pm ]
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Quote:
Howcome most of the musclecars of the 60's had open element ar cleaners?
They din't.
Author:  dakight [ Mon Jan 02, 2006 7:11 pm ]
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Quote:
Quote:
Howcome most of the musclecars of the 60's had open element ar cleaners?
They din't.
There were some pretty elaborate systems for getting outside air to the carburetor. In fact few if any true "muscle" cars had open element air cleaners. There was a dizzying array of scoops, shakers, etc. designed to isolate the incoming air charge from the heat of the engine compartment.
Author:  SlantSixDan [ Mon Jan 02, 2006 7:43 pm ]
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Quote:
Quote:
The open elements are worse for power.
I guess I'll take the one off my car then. And all this time I've been fooling myself that it actually made me go faster.
Gotta wake up sometime!

Have a cuppa coffee and smell the snowshine.

:-D
Author:  emsvitil [ Mon Jan 02, 2006 7:48 pm ]
Post subject: 
Quote:
The open elements are worse for power.

They pull in all the hot air around the engine, while a tube (and even better a tube with extended snorkle) will pull in air from a colder location.

Colder less dense air has more O2 to burn, thus more power.


Quote the whole thing, not just part of it................


:roll:
Author:  Avenger2040 [ Mon Jan 02, 2006 8:46 pm ]
Post subject: 
Quote:
do you have any pics of what you are talking about?
Sorry, my camera suffer a accident so I don´t have a method to take photos, but I got my "blueprints" of my system, the system works with 2 doors, one under hood in air cleaner bay, and the other door is the one that let in all the exterior air, and 2 electric motors.

Whe I want hot air to get drawned, exterior door is closed and interior door is open, when I want cold air exterior door is opened and interior door is closed, everything under hood is sealed by a big foam ring, interior door is made in foam, part of the ring that seals with a metal sheet where air element lays. Inner walls of foam ring are covered by plastic so If by any way water get it foam will stay dry.

When I finish to build the system including special made hoo all the foam ring will be covered with plastic to prevent it to get wet.
Author:  mcm95403 [ Tue Jan 03, 2006 9:38 am ]
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The open element air cleaners also have a problem with "stalling" of the air over the throat of the carb. This is caused by air pressure from the radiator fan blowing directly through the filter over the top of the carb at a right angle. If you look at the original 273 4 barrel "open element" air cleaner, you'll see the filter stops at the base and the cover (lid) goes out past the filter, then extends down to the depth of the base to prevent this problem. On the Six Pack cars that didn't use a hood scoop (like on the 70 Chargers) there is an "air deflector" - a curved metal dam - across the front of the base to protect against this very problem.

Also, the bases of these are usually flat and don't flow well - hence the "drop base" air cleaners sold by all the major brands - also available in generic chrome. It would be best to use one of those with the Mr Gasket adapter - if that is, you're not just going to go the Holley 350 2 barrel route........ Then you only need the thin Mr Gasket base adapter to bolt the Holley to a stock Super Six intake. It's still not NEARLY as good as running the Offy, but that's another subject.

Actually, if you wanted the best fresh air setup and don't want to make a hole in the hood, then I'd say use one of the late 70's/early 80's GM Q-jet air cleaners with the large snorkel. Route that off to the front grille area and pic up high pressure fresh air from in front of the radiator. They also have chrome lids for those too, maybe even aluminum one - but I've never looked for one.

Marc
www.marcmedina.com
Author:  225dart [ Tue Jan 03, 2006 10:00 am ]
Post subject: 
Quote:
Quote:
The open elements are worse for power.
I guess I'll take the one off my car then. And all this time I've been fooling myself that it actually made me go faster. :shock:

Does that mean that the clocks at the dragstrip have lied to me too? :roll:
Yea, me too, that 2 tenths i picked up must be flase reading from the track timers. I bet if i leaned it out instead of richening it up, i bet i could have picked up even more than the 8 tenths from that idea too.

I'll stick to my tried and trued experience from 13 years of racing thank you very much. I'm not going to disagree that a fresh air system is usually better, but come on, MOST engines will benifit if you can increase the airflow in any form---hot air or not. My dakota picked up a tenth and a half by switching to an open element air cleaner---only change i did on a couple of back to back runs on test and tune day at the track.

--chad
Author:  CStryker [ Tue Jan 03, 2006 10:14 am ]
Post subject: 
I think we are comparing apples and oranges here. I believe Dan (and the rest of the anti-open element crowd) is referring to daily driven vehicles. When you're running at the drag strip, you usually have time for the engine to cool down some between passes. As a result, you don't have nearly the same amount of hot air circulating around the engine bay that you do when driving a car on the street or on a road course. Hence, you benefit from the improved airflow without suffering much of the heat penalty. When you're driving down the street (especially just around town) you get a much larger heat-buildup under the hood.
Author:  SlantSixDan [ Tue Jan 03, 2006 11:13 am ]
Post subject: 
Quote:
When you're running at the drag strip, you usually have time for the engine to cool down some between passes. As a result, you don't have nearly the same amount of hot air circulating around the engine bay that you do when driving a car on the street or on a road course. Hence, you benefit from the improved airflow without suffering much of the heat penalty. When you're driving down the street (especially just around town) you get a much larger heat-buildup under the hood.
Yep. Also, factory air cleaners generally aren't the point of greatest restriction in the system on a daily driver (that honour belongs to the throttle plates!) When you start running around at full-throttle all the time, then the throttle plates stop being the point of greatest restriction and other areas (such as the air induction system) can be reworked to beneficial effect.
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