ZUKIWORLD Online | Suzuki 4x4 Editorial and Forum
ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: jookycola on May 19, 2004, 12:34:48 PM
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well with gas out of hand, i'm looking for anything to get better mileage....and some added power doesn't hurt.  My Catalytic converter is going bad, very quick. it's 2 years old and the place that put it on is a bunch of retards.  let's just say they screwed up my entire exaust system big time.  anyhow i'm going to remedy the situation soon but it will have to wait till after i move.  cause i need the money real bad to pay for $2-a-gallon of gas over 3000 miles. YIKES!  :o
so my question i've heard a few guys talk about how they "bored" out their cat...how did you guys doi it.  when i had a Z24 the j-body guys just jabbed a broomstick into the cat hard a few times started the car to spit out the stuff broken up inside and bolted it all back together...is it the same with sidekicks?
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i think u can just knock the stuff out with a crow bar or something.. but id not u could cut a squars on one side and cut everything out then wled it back together ???
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i took out my cat, put it in a vise, got a pry bar and hammer, got on the bench, and beat the living shit out of it. it was alot funner than i thought it would be. but make sure you don't put the bar though the case. oh yea after i threw the cat away. ;D
stu
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I just did mine last weekend,i took mine off and used a large screw driver and a hammer to break up the core and then a larger pry bar type screw driver once i got further into it.Dumping it out many times as i went along.
Word of CAUTION: Do not breath the dust that comes out of it or leave it where any pets will get to it,nasty stuff.
Do it away from any nice vehicles, the powder/ dust scratches paint very easily.
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I used a drill and a drill bit, I did it on the car, just unbolted it from the header and went to town on it. Worked pretty good.
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u guys know that since it isnt a straight peice of pipe it can hurt power??..plus not to mention the crap that now flows into the air..just something to think about
ah also forgot to mention..if u live in a state that makes u smog ur car people that gut there cats is the reason...if people didnt gut there cats then they wouldnt need a baby sitter. so far since i have owned the tracker i have had to smog it every year because it is at risk for failing..if people didnt gut there cats or remove other envormint helping things or drive pos cars on the road i wouldnt have to fork out 140$ a year
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ah also forgot to mention..if u live in a state that makes u smog ur car
Bahaha! What is this smog testing that you speak of ??? ;)
But yeah, if you're hellbent on gutting it, I had luck using a combination of a drill, crowbar, icepick and prybar to break up the core while it was clamped in a vice, then I just welded it back together.
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Our testing here is every 2 years and i just had mine done. mine still has 2 cats on the exhaust manifolds which control fuel mixture. Since my tracker had a 4 cylinder it only has to pass for 4 cylinder readings. If it should fail i will put another cat back on with bigger pipes. ;D But for now i got 2 years. ::)
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I too live in a state where we have to pass emisions. I have a 24" piece of staight pipe clamped in where the cat goes. So next time I need to take emisions I'll just clamp the cat back in.
Brian
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hehe, i wanna take mien right out, i think that may be a project for the future :) does it make much sound differense?
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Is it ok to replace it with a piece of straight pipe? Does it help power and gas mileage?
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You could tell it really dull stories? That oughtta bore it.
I would seriously consider getting a piece of straight pipe bent and flanged to swap out the cat (and whay haven't I done that to mine? Hmm...)
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It's best if you make a 'test pipe' and bolt it to both ends of the exh. where the cat and pipe were before then you will have A good cat in case you get A fix it ticket
later
Kevin
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Man...... I have been running open pipes for the last year and a half and then Texas comes out with emissions testing, so I had to go buy a pair of cats and a pair of mufflers for my samurai..... I passed emissions though....
http://ricedestroyer.com/phpBB2/viewtopic.php?t=1105&highlight=samurai+exhaust+emissions
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:o :-/ ??? ::) Kids! Unless it's clogged or no longer cuts down on NOx or HC then leave well enough alone. It doesn't give you a seat of the pants feel or drastic fuel economy. If you ask me the energy exerted on "gutting" the cat could be used elsewhere to actually add performance. Anyone with a dyno sheet to prove me wrong post it. :P
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:o :-/ ??? ::) Kids! Unless it's clogged or no longer cuts down on NOx or HC then leave well enough alone. It doesn't give you a seat of the pants feel or drastic fuel economy. If you ask me the energy exerted on "gutting" the cat could be used elsewhere to actually add performance. Anyone with a dyno sheet to prove me wrong post it.  :P
But I like to smell my unburnt fuel, dammit! >:(
;)
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I don't have dyno results, but there is alot of difference in my kick. Maybe my cat is getting plugged, I don't know,but when I went back to straight pipe even my girlfriend could feel the difference in acceleration.
Brian
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I don't have dyno results, but there is alot of difference in my kick.  Maybe my cat is getting plugged, I don't know,but when I went back to straight pipe even my girlfriend could feel the difference in acceleration.
Brian
FWIW, I had an old, old pancake style cat (probably clogged) pulled off my car (not the Tracker) and replaced it with a new hi-flow cat with the same result as yours.  The hi-flows probably flow as much exhaust as a straight pipe and you have better emissions.  The only downside is more $$$.
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My cat was plugged. It was the only reason why I bought it. Its almost like the zuk is constipated when it has a plugged cat. No place for anything to go.
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:o :-/ ??? ::) Kids! Unless it's clogged or no longer cuts down on NOx or HC then leave well enough alone. It doesn't give you a seat of the pants feel or drastic fuel economy. If you ask me the energy exerted on "gutting" the cat could be used elsewhere to actually add performance. Anyone with a dyno sheet to prove me wrong post it.  :P
I agree. Unless someone can show me hard prof of the great benifites, I'll keep the cat in place.
Now, has anyone tryed getting rid of their muffler and just running a pipe from the cat back???
One more hit from a rock or log and my muffler will be gone. It's just in a bad place.
I've thought of just replacing it with a straight pipe. Don't know what it will sound like. Don't want to be too ricie...
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I agree.  Unless someone can show me hard prof of the great benifites, I'll keep the cat in place.
Now, has anyone tryed getting rid of their muffler and just running a pipe from the cat back???
One more hit from a rock or log and my muffler will be gone.  It's just in a bad place. ÂÂ
I've thought of just replacing it with a straight pipe.  Don't know what it will sound like.  Don't want to be too ricie...
I had just the gutted cat with the muffler cut off for a while, and it wasn't too loud... It was loud enough to drown out the tire buzz, though... I think it'd sound fine... since if you've got some sort of hole or leak at the muffler, it wouldn't be too much louder than it is now, methinks...
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You need to remember also that if your truck is OBD2 (96 and newer), it has a second O2 sensor that monitors the operation of the cat. If you take the cat out or gut it, you will get a constant check engine light and be stuck in open loop, which will decrease your gas milage.
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Mine sounded pretty good with just a straight through glass pack instead of the muffler but also had a tailpipe.
Sounds a little louder now with the Main cat gutted,but the front two keep it quiet still.
Having the 6 cylinder and dual Pre-cats lets me get away without the check engine light from coming on because one sensor is before and one after the Pre-cats.There isn't one after the main cat.
I drove it many miles for 2 days then rechecked my computer and no codes had been set.
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To give you a more throttle heavy sound, oil soak the insulation in that glass pack. Then run the glass pack as far away as possible from the end. The longer tailpipe will reduce the transdusing waves which creates the noise. Under throttle, that's pretty much just a flow-through pipe as there is so much air flow, the noise doesn't have time to resonate itself dead.
I strongly suggest that you keep a working cat underneath your truck. EPA has been known to setup rolling exhaust checks and it's a real heafty fine if you are caught.
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I strongly suggest that you keep a working cat underneath your truck. EPA has been known to setup rolling exhaust checks and it's a real heafty fine if you are caught.
That's why gutted cats are the way to go... looks like a cat upon a visual check, but with a muffler, there's no way to poke a wire in to see if there's still core! :P
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I think my cats plugged, I can smell it. It would be cheaper to put in a piece of straight pipe, but he check engine light is bright. I have a 97, I don't have a problem taking the light out, but will it really decrease my mileage. I had a ford focus with a header and no cat, I bought a o2 cheater, so the light wouldn't come on.
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That's why gutted cats are the way to go... looks like a cat upon a visual check, but with a muffler, there's no way to poke a wire in to see if there's still core! :P
I've only heard, but the, inspectors, will want to figure out why you vehicle is not passing. You may be required to bring it to an inspection station.
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if people didnt gut there cats then they wouldnt need a baby sitter. so far since i have owned the tracker i have had to smog it every year because it is at risk for failing..if people didnt gut there cats or remove other envormint helping things or drive pos cars on the road i wouldnt have to fork out 140$ a year
if we didn't have emisions we wouldn't need a baby sitter!
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 if we didn't have emisions we wouldn't need a baby sitter!
if people didnt do things they knew were wrong we wouldnt need a baby sitter..if we didnt have emitions we would live like jappan ( very very poluted)
i am a die hard muscle head i hate all the new laws forbiding my medaling fun..but in the same respect i understand why the laws are the way they are and what they are doing to help...LA would be land fill in 30 years if it wassent for pollution control
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well if i bore it out are there any tips anyone can give me?
like is the Suzuki Cat made up of a "paper" or "fiber" type of filtration or is it those kind that have 100's of little glass marbles in it?
and really i'm doing it to increase my fuel economy for my cross country trip.
all ready did a full tune up, this was going to be a bonus...that is if it actually impromes any economy, sounds like a few people say no.