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 Post subject: No cat = :D
Posted: Mon Jun 11, 2007 7:55 pm 
Tyre Shredder
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The other day my catalytic converter collapsed, so i took the car down to my local mechanic and left it with him to fix, i returned later in the day to discover he had just cut it totally out and welded in a peice of stainless the same diameter as the exhaust and as my car is on dedicated gas he assured me this is totally legal but getting to the point, this makes a huge difference to the performance of my car, it has more power low down and just revs so much harder throught the whole rev range.

I have heard people discussing this and now i actually have driven the same car before and after i thought i would share my experience

 

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Posted: Mon Jun 11, 2007 7:58 pm 
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Nice, your mechanic is an idiot.

I hope you don't mind the idea of $10,000 fines.
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Posted: Mon Jun 11, 2007 7:59 pm 
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this is illegal and you can cop a fine of $10,000 in some states. does it have the standard exhaust or aftermarket??? cause it will be too loud with a aftermarket sports exhaust.
just a warning, not having a cat can let out harmfull gasses that you wouldnt want to breath

 

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Garrett gt40turbo, iceman plenum, ported head, turbo cam, double valvesprings, 023 fuel pump, 36lb injectors 4' cat, 4' dump, 2.5 exhaust, build bottom end, hypertonic pistons rods & rods, king bearings, j3. c10 3500 stall
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Posted: Mon Jun 11, 2007 8:03 pm 
Getting Side Ways
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Also you can usually hear when a cat has had the guts knocked out of it (not sure if you can hear a similar sound when it's not there), but you get a silly tinny sounding noise.

Much better with a cat.
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Posted: Mon Jun 11, 2007 8:03 pm 
Tyre Shredder
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Location: Canning Vale
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im told dedicated gas has different emissions requirements. The car doesnt sound much louder at all, crisper maybe, but no louder

 

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Posted: Mon Jun 11, 2007 8:05 pm 
Getting Side Ways
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Your not understanding.

ALL cars are required to have a catalytic converter fitted, if you remove yours, you run the risk of hefty fines and court appearances.

Yes you get performance gains, but how much are they really worth?
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Posted: Mon Jun 11, 2007 8:05 pm 
Getting Side Ways
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Ride: ef fairmont turbo

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do the exhaust fumes smell any diffrent????
trick question

 

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Garrett gt40turbo, iceman plenum, ported head, turbo cam, double valvesprings, 023 fuel pump, 36lb injectors 4' cat, 4' dump, 2.5 exhaust, build bottom end, hypertonic pistons rods & rods, king bearings, j3. c10 3500 stall
232rwkw@4psi

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Posted: Mon Jun 11, 2007 8:07 pm 
Tyre Shredder
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I think if u observe the fine print it says all cars running unleaded fuels must have a cat.... my car doesnt run unleaded

 

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Posted: Mon Jun 11, 2007 8:08 pm 
Tyre Shredder
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haha, your more than welcome to come over and let me know 4dlvr ,

 

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Posted: Mon Jun 11, 2007 8:10 pm 
Getting Side Ways
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Ride: ef fairmont turbo

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hehe no thanks,
i belive its all fuel injected cars must have a cat.

 

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Garrett gt40turbo, iceman plenum, ported head, turbo cam, double valvesprings, 023 fuel pump, 36lb injectors 4' cat, 4' dump, 2.5 exhaust, build bottom end, hypertonic pistons rods & rods, king bearings, j3. c10 3500 stall
232rwkw@4psi

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Posted: Mon Jun 11, 2007 8:14 pm 
Fordmods Junkie
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you might want to lok into the legislation on this in your state, as running dedicated gas (did it come that way r was it converted) could change things.

and, its easy to test for on a road so ive been told

 

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Posted: Mon Jun 11, 2007 8:24 pm 
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Darkr wrote:
Your not understanding.

ALL cars are required to have a catalytic converter fitted, if you remove yours, you run the risk of hefty fines and court appearances.

Yes you get performance gains, but how much are they really worth?


I think you worded that post wrong. if the car was pre 86, then it would not have had one fitted.

post 86 vehicles are required to have one installed/run on unleaded petrol.

so yes any e series falcon etc will have one fitted standard.
Might be an idea to check with the legalities of this. otherwise you could always point the main roads mob your mechanics way if you do get a defective vehicle notice.

Gas is probably different as it runs a lot cleaner then dirty old unleaded.

ever seen the back of a car running ulp that has the catalytic converter removed/bashed in, the cars bumper bar changes colour to a yellow colour from the nasty gases that are emitted.

bring back leaded cars FTW.

 

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Posted: Mon Jun 11, 2007 8:34 pm 
Getting Side Ways
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Location: sydney
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if ur mechanic done it then f*** it and leave it on


if u get pulled over, blame him!


simple
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Posted: Mon Jun 11, 2007 8:49 pm 
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put a pormace one on if you want power but the fines are way no worth the performance gain

 

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Posted: Mon Jun 11, 2007 8:57 pm 
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why would an lpg car not need a cat....it still produces pollutants that need cleaning up.....who ever said lpg cars dont need a cat?

 

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