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Join Date: Jun 2005
Location: mitchell, sd
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air filter housing question

on my '84 944 the previous owner took the filter housing off and put a round concial style filter on that just pushes onto the hose that go's to the throttle body and a hose clamp to hold it there. the problem is theres nothing holding the air filter up, it pretty much just lays on top of the alternator, and the other day I noticed it had a whole rubbed in it. I could fix it by putting on a new filter and a simple aluminum strap to hold it up so it doesn't rub on anything, or put the old housing back in. either way a new k&n filter is $60, but do you think that having the filter the way it is now is gaining me any horsepower?
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1992 freightliner
1994 freightliner
1970 dodge challenger r/t se
1994 ford f-150
1984 porsche 944
1991 corvette z07
hopefully a 2008 dodge challenger
Old 01-29-2006, 04:48 PM
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Speaking only from what I've read here and elsewhere, the cone filter may be giving you less power. It does give you more throttle sound which rates highly for the placebo seat of the pants dyno.
Also read that they pass more dirt thru to the engine.
Just recalling what I've read, never owned one and not planning on it.
I figure the people that designed the stock intake were paid well and took their time.
MW
Old 01-29-2006, 04:57 PM
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Its doubtful a conefilter is netting any gains other than a difference in sound as mbwilser said. Its a long debate, but most say you are sucking in hot air now as opposed to the stock setup which is a cold air intake. But others will tell you as you are crusing, the engine bay reaches ambient temperatures. Like i said, its a long debate. Personally i would go back to the stock intake, but thats just me.
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1988 Granite Green 911 3.4L
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Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1
Old 01-29-2006, 05:01 PM
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stock is cool too but do the intake tube cut off fix or dont go over any deep puddles, edit: or cross any lakes, i've seen a few engines get hydro locked.
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83 944....bye bye
85.5 euro spec 944, 5sp (she's gone....
74 914...hasta LA Vista baby
87 924s....don't let the door hit ya
68 912.......see ya!

Last edited by earlr85944; 01-29-2006 at 11:11 PM..
Old 01-29-2006, 05:02 PM
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I'm starting to lean toward putting the old filter housing back on. I don't know if I should bother with a k&n or just put a regular filter in. has anybody tried a fram airhog, or an accell kool blue filter?
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1992 freightliner
1994 freightliner
1970 dodge challenger r/t se
1994 ford f-150
1984 porsche 944
1991 corvette z07
hopefully a 2008 dodge challenger
Old 01-29-2006, 05:18 PM
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I don't think that water deep enough to cover the cold air inlet, or fill the bottom of the belt housing for that matter, would qualify as a "puddle".
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Old 01-29-2006, 05:33 PM
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I think it would qualify more as a flood . Not to mention i think water that deep would also give you other significant problems such as submerging the alternator. Let alone the interior of the car.

I have a K&N panel filter for my car, no particular reason i use it other than i bought into the whole 'performance' thing four years ago when i was younger and more naive. They are expensive at $45-60 depending where you buy it. But then again you can reuse it. It comes down to preference, dont buy into the "K&N destroys your engine" or "K&N will give you performance" because frankly there is no evidence to back up either claim. If i knew better back then would i have still bought the K&N? Ehh, i dont really know.
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Jon
1988 Granite Green 911 3.4L
2005 Arctic Silver 996 GT3
Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1
Old 01-29-2006, 08:16 PM
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I'm I going to put an accell kool blue panel filter in. It is $30 at Advance auto parts and it is reusable just like a K&N. Thanks for all the info everybody.
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1992 freightliner
1994 freightliner
1970 dodge challenger r/t se
1994 ford f-150
1984 porsche 944
1991 corvette z07
hopefully a 2008 dodge challenger
Old 01-30-2006, 04:17 AM
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Actually it doesnt have to be a flood. The water enters the intake system when its splashed up throught the drivers side fender where there is intake suction present ( of course it has to be a considerable amount). The water is sucked into the cyl's. and can actually cause the timing belt to slip as the hydraulic pressure causes the bottom end from spinning freely and the weakest link lets loose first. I believe there is actually a service bulliten out to cut back the snorkle about half way up to prevent it from happening. If you dont do it just stay away from driving into lakes.
__________________
83 944....bye bye
85.5 euro spec 944, 5sp (she's gone....
74 914...hasta LA Vista baby
87 924s....don't let the door hit ya
68 912.......see ya!
Old 01-30-2006, 08:05 AM
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