Anyone have problems with K&N air filters???

Started by 90TGP, December 29, 2003, 02:52:51 PM

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90TGP

Does anyone have problems with there K&N air filters ripping at the rubber neck? I've went through three of them (RU-1770, RU-1760, and one Jeff M. sent me), and all the rubber necks ripped or torn someway or another. I think it's mostly due to my dad tightning the clamp down too much  :?

maximage

I'm actually a K&N Dealer. Usually when I see that, it's overtightned clamps as you stated. I've had mine on for quite some time(over30k miles).
90 TGP- Mods, yeah I have them...
90 DSM Turbo 5-speed
02 Beetle GLS

Look! I finally updated my sig!!

R Dubya

My first one ripped, I replaced it with the same K&N pn# and it's still good.  I tightened it too much.. it gets hot as hell right there and those clamps weaken it if they're too tight.
Ryan Warren
'89 TGP
It doesn't run anymore.

RareGMFan

I was just going to post about this, because mine is doing the same thing!  I kept tightening it, yet every time I looked under the hood, the filter managed to somehow pop off again.  So I finally tightened the hell out of the clamp as hard as I could, and it did just what yours did.  The boot part ripped, and the filter STILL came off.  This is all in the course of the 2 months or so that I've had the filter.

I bought it from AutoZone, but they said they dont deal with returns for K&Ns, and that I'd have to call them up directly.  Will K&N swap it with another one if I call them up directly??  I'd hate to think I just blew $30 on a filter that lasted me 2 months!    

Damn it.  I was just beginning to enjoy the obnoxiously loud whistle of the turbo.   :cry:
1990 Pontiac Grand Prix SE McLaren Turbo (1 of 2725), 1989 Pontiac 6000 STE AWD (1 of 1376)
1990 Pontiac Grand Prix STE McLaren Turbo (1 of 1000), 2001 Pontiac Grand Prix GTP Special Edition



4PASNU

I guess the same thing happened to my car.  My brother (he has my TGP up in WA) said that it was split at the neck.  He was able to trim it down where it still worked.  The thing I find odd about it is that I never tightened it enough that should have caused this.  I knew that if I did it to tight that it could cause a problem so I was always careful.  Is it a coincidence that everyone is having problems with their K&N's?
Mike Ruckhaber
Currently own a 1990 Black TGP Stock.
Previous owner of a 1989 TGP: FFP Dogbones, K&N, KVR rotors/pads. Exhaust: 3" hi-flo cat, Dynomax 2.5" Ultra Flo mufflers. 
2000 GTP

R Dubya

Mine got so bad I had to purchase another one, or not drive my car.. I tightened mine so it left imprints on the rubber neck, and soon enough it was melting and ripping.  I got another one, left it kinda loose and everything is ok.  Tight enough to keep it on, but loose enough so you can wiggle it off without touching the clamp.
Ryan Warren
'89 TGP
It doesn't run anymore.

idbeast

I've had mine on my red 90 for 6 years, I took a 1 liter plastic pop bottle and cut a 1/2 inch strip and put it under the hose clamp and carefully tightened it up... it was a pain to keep in place at first but it works good now. :mrgreen:  :drinking:  :drinking:
Jim W     AKA  Idbeast
04 Supercharged Nissan Frontier Crew Cab 4X4 in sandstone (Light Gold)!!!
Red 89 TGP (14.95 1/4 mile) Not any more...... coming with surprises in the very near future, Black 90 TGP (14.41 1/4 mile), White 90 Turbo STE (15.06 1/4 mile), and now my 2nd White 90 Turbo STE 89 Dodge Shadow ES Turbo

turby

I had a piece cut off the end of the stock intake hose on the turbo neck. Then I put the filter over it. Kept it from sliding off.

god910

I have a knock off pos filter.  (I don't even know who made it, it as on the car when I bought it.)  It's got some serious no bull shit, rubber for the neck.  It's kinda like a rad. or fuel line.  But, I am switching over to a K&N before it makes it's way back onto the road.  But I think I'm gonna work on a true cold air.  Unless it's too quite  :twisted:
1990 Turbo Grand Prix Black Sunshine
282 5 speed, Custom Chip, 1G DSM BOV, K&N on turbo, Centerforce Clutch, Accel 8.8 Wires, no kat, straight exhaust, TB bypass (200HP), Jeff-M cro$$over ;)
Jay Warfel
Muncie, IN
2nd TGP "TestBed" 90, Black JeffM TG160 & X-over, ractive filter, 15.21 @ 90 mph
2003 Sonic Yellow Subaru Impreza WRX  Turbo XS Stage 3
Perrin GT35R, 2.5 STi Block, JDM 6 speed swap underway.
Goal: 450 AWHP, mid 11's.

Mike J.

My K&N ripped b4.  I believe it was due to the engine torking over and pushing the filter against the intercooler.  If your filter shows signs of a scrunched in corner, that could be the problem.  K&N's are overpriced compared to similar-better types on ebay.  See my post with pics of a easy/nice/functional cold air setup.  The last post is dated 21,Oct. 2003.
Paid $20 for the whole nice setup plus shipping.
Here's my car and setup:
http://www.cardomain.com/memberpage/439462
Twin black 90's

90TGP

Mike, what intake did you use for it? Did you use a universal Civic intake, or an Accord V6 intake?

Mike J.

See this link for a current ebay listing of what I bought which was for a Dodge Neon.  I just cut it to the length I needed and now have 2 usable (although not identical) pipes.  Also see that post I started dated Oct 21 for description of mounting etc.  I chose option 04 because it can easily be sealed with an reducer to the stock 3" cold air port behind the pass. headlight.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2452731579&category=38634
Twin black 90's

Tooky

I missed this post the first time around; but wanted to add that yes my filter also suffers from this problem of ripping at the neck and getting scrunched by the intercooler.  I tried loosening the band clamp and the filter pops off the turbo inlet (bad situation).  For now I am just tightening the clamp only enough to keep the filter from coming off the turbo (which is still pretty tight.)  

If I ever buy another filter for the stock turbo I will be getting the shorter one mentioned in my K&N Filter post (see sticky at top of this forum).
Josh Straub
1990 Pontiac Turbo Grand Prix, GT2871R 475HP-capacity turbo, built 4T60, 28# Injectors, DIY Ostrich realtime chip tune, JeffM Crossover, Cold A/C, BoostValve.com manual controller @ 14 PSI.  200,000 mi factory original motor.  Best time on T25 @ 11 PSI: 14.78 @ 93 MPH.
1991 GMC Syclone: 11.79 @ 114 MPH. Stock with PT51 turbo plus SMC alcohol injection and tuning, 24 PSI

90TGP

I think the best solution to the problem is going out and buying a T-Clamp to replace the worm clamp that comes with the filter. I read on another board about how worm [the clamps with the screw and notches in the band] clamps when tightened a lot can squeeze the rubber through the notches and cut the rubber apart. That's why it's recommended to use only t-bolt clamps on turbo applications because it doesn't cut into the rubber.

Jeff M

Quote from: Mike J.My K&N ripped b4.  I believe it was due to the engine torking over and pushing the filter against the intercooler.  If your filter shows signs of a scrunched in corner, that could be the problem.  K&N's are overpriced compared to similar-better types on ebay.  See my post with pics of a easy/nice/functional cold air setup.  The last post is dated 21,Oct. 2003.
Paid $20 for the whole nice setup plus shipping.
Here's my car and setup:
http://www.cardomain.com/memberpage/439462

A very good point, worn dog bones allow the engine to torque forward smashing the turbo into the intercooler. Only on some TGPs did this happen so I trimmed the neck back some on the air filter and still had enough to clamp to.  If it slips off then damn it, clean the oil off the turbo inlet and air filter neck :roll:, then you won't have to tighten the clamp so much (not you Mike).  On other TGPs there was no contact or very minimal amount of contact.  

Jeff M