Ram Air For FREE? - JeepForum.com
 
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post #1 of 9 Old 02-28-2006, 07:17 PM Thread Starter
adp5025
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Ram Air For FREE?

Ok guys I was messing around with the stock intake today, checking the filter and such. When looking at the horn of the stock intake, i noticed with enough force you could move the horn to any angle. i pushed it clockwise (from the front view) so it was pointing in the direction of the fan. The engine fan forces the air with a good bit of freash air into the area of the horn.

Also does anyone know if there are negitive affects of doing this, I havent drove with the new direction of the horn but i will be driving 50 miles tommorrow, so i will let you guys know if i see any changes in performace. Most likey it will stay the same Im not sure.

I dont have my cam with me, so i could not take any pictures

Basicly to sum it up just turn the horn of the intake to any angle u want insteed of the 90 deg that it was at. I placed it at 350 deg which points to the engine fan.


1999 Jeep Wrangler Sport 4.0L 5 Speed (Dana 30/186MM Front Axle,3.73 Axle Ratio,Dana M35/194MM Rear Axle)
2004 Jeep Grand Cherokee OVERLAND 4.7H.O. V8
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post #2 of 9 Old 02-28-2006, 07:26 PM
M1Shooter
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Why would you want to force hot air into your intake? Any positive effects from forced air will be negated by it's temp.
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post #3 of 9 Old 02-28-2006, 07:30 PM
aussie stu
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the cool freah air hitting the radatior isn't so cool or freash when it comes out the other side.

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post #4 of 9 Old 02-28-2006, 07:31 PM Thread Starter
adp5025
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Quote:
Originally Posted by M1Shooter
Why would you want to force hot air into your intake? Any positive effects from forced air will be negated by it's temp.
Yeah i thought about that just now

Also just thought about another thing, what if i cut a hole directly underneat of the horn (270 deg) and place the horn under the front left wheel well, so it sucks up air from out side the cars engine compartment

1999 Jeep Wrangler Sport 4.0L 5 Speed (Dana 30/186MM Front Axle,3.73 Axle Ratio,Dana M35/194MM Rear Axle)
2004 Jeep Grand Cherokee OVERLAND 4.7H.O. V8
2007 Toyota Tacoma Double Cab 4.0L V6 TRD offroad
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post #5 of 9 Old 03-01-2006, 07:24 AM
Jeepin' Rock Cl
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Ever see how much mud tires kick up into the fenders? Do you want that in your airbox?
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post #6 of 9 Old 03-01-2006, 08:18 AM
mdot
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Quote:
Originally Posted by adp5025
Yeah i thought about that just now

Also just thought about another thing, what if i cut a hole directly underneat of the horn (270 deg) and place the horn under the front left wheel well, so it sucks up air from out side the cars engine compartment

It's called a "cold air intake". Look for kits online. But the gains are debated and marginal even at best. (On our jeeps that is...other vehicals have other results)
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post #7 of 9 Old 03-01-2006, 08:53 AM
RockRunner85
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Quote:
Originally Posted by Jeepin' Rock Cl
Ever see how much mud tires kick up into the fenders? Do you want that in your airbox?
Or water for that matter if you do any stream crossings.

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post #8 of 9 Old 03-01-2006, 09:04 AM
Milhouse
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From what I understand the reason the horn is faced in that direction is so that the hood helps protect it from getting water/mud into the air box. By moving/drilling the hold you run the risk of sucking up water into the engine and creating a whole bunch of problems...
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post #9 of 9 Old 03-01-2006, 09:14 AM
Muddeprived
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You will gain very little with the ram-air effect. I have a custom 3" snorkel that pops out of the hood and i run a 90 degree pvc that faces forward on the highway. I cannot notice any difference in power, high or low rpms. My buddy's yj has a custom 3" snorkel just like the arb and has the same 90 degree pvc angle on top, facing forward. He too didn't notice any gains. We both have the 4 cyl.

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