K n N air filter question

  • Thread starter Thread starter PETER MITCHELL
  • Start date Start date
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PETER MITCHELL

I have a 1989 DL Volvo. I put in one of these and have experienced the
engine running smoother as well as a little more pep. I had read on this
message board people saying that the filter can hurt the engine is this
true?

I thought this type of filter cleans the air better and allows more air into
the system....Does it damage the car?

Pete
 
I have one on a 1999 S-70. Haven't noticed any problems.
j
 
It might hurt the engine if you don't re-oil it correctly when you clean it
out. Too much can screw up MAF sensors and too little can cause dirt not to
be caught.

I found it did nothing in my Golf TDI so we stuck with the paper filters in
the Volvo (we were considering them for all three of the cars because you
never have to get new filters, just clean them... we only bought one for the
Golf because it does more KMs per year then both the other cars combined -
so it saves money on filters, at least the overpriced ones from the dealer).
 
i have been running a k&n cone filter for two years...and 30k
miles...no
problems yet...my 940 has 240,000 miles on it......i think i must have
removed about 5 lbs of plastic on the facory air box system that i
replaced...
 
I believe they allow better air flow but I've also heard that they let more
dirt through as well.
 
That's usually the trade off with all filters.

Tangy said:
I believe they allow better air flow but I've also heard that they let more
dirt through as well.
Click to expand...
 
Haven't you guys heard, K&N do a flat filter for the airbox that is just as
good and what's more is quiet as well.

Cheers, Peter.
 
My 89 780 turbo has a foam filter inside the box, is this supposed to
be washable, and should it be oiled after washing?

Looks like the original filter, this car has over 170k miles on it,
and a broken odometer, so real mileage is not known.

Would it be feasible/adviseable to replace with one of the aftermarket
filters like the K&N mentioned?

I am not concerned about more noise, and performance increase would be
a plus for this car.

Just wondered if I should investigate upgrading to one of these higher
flow units or stick to the original.
 
My 89 780 turbo has a foam filter inside the box, is this supposed to
be washable, and should it be oiled after washing?

Looks like the original filter, this car has over 170k miles on it,
and a broken odometer, so real mileage is not known.

Would it be feasible/adviseable to replace with one of the aftermarket
filters like the K&N mentioned?

I am not concerned about more noise, and performance increase would be
a plus for this car.

Just wondered if I should investigate upgrading to one of these higher
flow units or stick to the original.
Click to expand...

The original type filters are plenty big, there's almost no restriction
across them. By foam, are you talking about a thin piece that appears
to be glued to the lid? If so, that's just there to eliminate a whoosh
sound. If the actual element is foam, then its care depend on who makes
it and what they recommend.

--
Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
The foam piece I'm talking about is in the lower half of the air box,
probably about 4 inches thick, held in by a metal frame that wedges
against the interior of the box.

Although it was fairly clean, it looks to be the original.

Wondered if I should convert it before the foam disntegrates...
 
The foam piece I'm talking about is in the lower half of the air box,
probably about 4 inches thick, held in by a metal frame that wedges
against the interior of the box.

Although it was fairly clean, it looks to be the original.

Wondered if I should convert it before the foam disntegrates...
Click to expand...

Actually, now that you mention it, that foam is also for sound
deadening. I'd forgotten about it as it doesn't usually give problems,
and it's below the air filter, so if it breaks up, it doesn't clog the
air mass meter screen like the piece on the lid. With the airbox lid
off, the air filter should hide this from view until removed - is it
possible there's no air filter at all in your car?

--
Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
Mike, that's what it looks like.

I thought there was a large area of unused space here inside the
airbox, that's why.

Since my old 76 turbo did not have the foam addition, I thought this
one was the air filter, but apparently not.

Looks like the foam was all this had for filtration.

I better get one in there now, or convert; don't want that dirty air
getting into this thing.

Thanks for the observation!
 
vinran1 said:
Mike, that's what it looks like.

I thought there was a large area of unused space here inside the
airbox, that's why.

Since my old 76 turbo did not have the foam addition, I thought this
one was the air filter, but apparently not.

Looks like the foam was all this had for filtration.

I better get one in there now, or convert; don't want that dirty air
getting into this thing.

Thanks for the observation!
Click to expand...

If you use a K&N filter be sure to follow the oiling instructions
exactly. Excessive oiling of the filter will insure that fine oil
particles will deposit on the hot wire/foil for the air mass meter and
cause premature failure.

Bob
 
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