Pacemakers

[fordAU]

Originally Posted by jonbays

Now I white hair, prostate problems and an AURION!
: (

Never mind mate, it could be worse, I know the feeling though.

Why don't you pick up an AU XR8 for the weekends, they are going for a song these days, I did, bloody loud too, the wife, the neighbours, actually the whole street hates it but I love it

[nikos]

Not only that, but Zoom magazine did a test on gutted cats a while back, vs high flow cats, and found there to be little to no difference - namely because of the drastic change in diameter, the airflow was being restricted anyway, even without the "honeycomb" to slow things down.

It doesn't matter, he is ending up with a cat that flows higher than stock, but a bit less than higflow, for no extra cost. Better than forking out an extra $350.

They don't get rid of all the gases anyway, only some of them. Also if anyone is that worried about the atmosphere then get a 4cyl.

[JC]

Originally Posted by nikos

It doesn't matter, he is ending up with a cat that flows higher than stock, but a bit less than higflow, for no extra cost. Better than forking out an extra $350.

They don't get rid of all the gases anyway, only some of them. Also if anyone is that worried about the atmosphere then get a 4cyl.

He is also breaking the law. If I find his rego number, I will be ringing the EPA for sure.

[StealthAu]

I agree JC, but what I don't get is legally all cars that run on ulp require a cat. Now that super dosn't exist, does this mean all pre 80's cars are illegal?

[Casper]

Originally Posted by stockoau

I agree JC, but what I don't get is legally all cars that run on ulp require a cat. Now that super dosn't exist, does this mean all pre 80's cars are illegal?

The emission laws are not retrospective. If the car didn't come with cats you do not need to have them.

[b2tf]

Originally Posted by nikos

Also if anyone is that worried about the atmosphere then get a 4cyl.

You're a goose.

[private9]

Originally Posted by stockoau

I agree JC, but what I don't get is legally all cars that run on ulp require a cat. Now that super dosn't exist, does this mean all pre 80's cars are illegal?

It's a valid point that you raise, but these cars are a very small percentage of vehicles on the road today and would represent a very small amount of total vehicle pollution.

[private9]

Originally Posted by nikos

It doesn't matter, he is ending up with a cat that flows higher than stock, but a bit less than higflow, for no extra cost. Better than forking out an extra $350.

They don't get rid of all the gases anyway, only some of them. Also if anyone is that worried about the atmosphere then get a 4cyl.

Mate, you're an idiot.

As JC said, if I find his rego details, I will be reporting it to the EPA.

[stiddy]

You'd be hard pressed finding a car off the factory showroom floor that passes emissions let alone a punched out cat. They only pass by default.
I wouldnt report him, but I do think its stupid effectively running without a cat knowing the penalties involved.
Impounded car, upto $20,000 fine.. hmm $350 for a highflow cat doesnt sound too bad now does it?
I got a 3inch stainless steel Xforce highflow cat for $139 off ebay.

[JC]

Originally Posted by stiddy

I got a 3inch stainless steel Xforce highflow cat for $139 off ebay.

I got a 2.5" high flow mangaflow (genuine, brand new) cat off ebay for $160 delivered, then $120 to flange and fit it. I certainly feel better knowing that I am running a legal, high flow system - as these young blokes grow up and start to care about the world we live in, they will feel better doing the right thing too. From my point of view, I really don't care if there is a world in 50 years - I'll be dead by then, but my kids would probably care. I'm not a greenie in the traditional sense, but I do believe we should look after the world we live in for future generations. I mean, the dinosaurs obviously didn't care, and look what happened to them.

[StealthAu]

That'll teach those dinosaurs for not running cats

[JC]

Originally Posted by stockoau

That'll teach those dinosaurs for not running cats

Closest they had was the Sabre-Tooth Tiger, I believe, but the flow rates were woeful given the large protrusion in the opening. :

[sly]

Originally Posted by JC

Sorry, but no straight 6 can ever sound anywhere near a V8.

You must have missed the silly smiley at the end of the bait mate!

Anyway, the V8 I had in mind was my uni mate's ZG Fairlane with the strangled 2V 302 and single pipe. It sounded almost like a 6.... :-) <------ SFSF

Seriously, from the passenger's seat it was hard to pick what was upfront. There was no V8 throb. Nothing. Just a thrashy asthmatic roar as the revs rose to strangulation point. And the idle was generic as.

Originally Posted by JC

As for the rest, you can convince your ears otherwise, but extractors make little to no difference to the note. They can't - they are pipe only - mufflers are what controls the noise levels.

But note and noise level are 2 different things. The mufflers control the noise level (at the tailpipe) but the length of the primary can influence the pitch, or note (higher/lower, harmonics etc).

[ryanjay]

What about the performance difference between the 4499 and the 4480? ive got the 4499 pacemakers, hi-flow cat, 2.5 redback, hi-flow air filter and big snorkel, and in all honesty it doesnt really go that much harder than standard. Im taking it into JMM soon to get a cam and a tune. Hopefully that will give a bit more power.

[JC]

Originally Posted by ryanjay

What about the performance difference between the 4499 and the 4480? ive got the 4499 pacemakers, hi-flow cat, 2.5 redback, hi-flow air filter and big snorkel, and in all honesty it doesnt really go that much harder than standard. Im taking it into JMM soon to get a cam and a tune. Hopefully that will give a bit more power.

Unless you have a cam etc to go with them, the 4480s are a waste of time. Large primary's mean you lose low down torque, but gain high rpm power. Not many of us spend all day above 4000rpm.

The edit and cam should free up plenty of power, and any extractor will let you make the most of the changes (more air out).

[private9]

Originally Posted by ryanjay

What about the performance difference between the 4499 and the 4480? ive got the 4499 pacemakers, hi-flow cat, 2.5 redback, hi-flow air filter and big snorkel, and in all honesty it doesnt really go that much harder than standard. Im taking it into JMM soon to get a cam and a tune. Hopefully that will give a bit more power.

With you there mate. I've got all the same mods, and I'm really not all that impressed. The cat back exhaust made the biggest difference IMO, but the cat and extractors in particular I am pretty disappointed with.

Don't get me wrong, wasn't expecting huge gains, but was expecting it to be a little better than how it feels now.

[ryanjay]

what kind of power increases do you think i should expect with getting a cam, dyno tune and the edit? Because judging by the increases that i got from what ive done so far, mabey i am expecting too much?

[nikos]

Originally Posted by private9

Mate, you're an idiot.

As JC said, if I find his rego details, I will be reporting it to the EPA.

Whatever mate, just saying my 2c, i may not agree with your opinion but i'm not going to call you an idiot.

I care a lot about the planet, I do everything I can to keep her clean, its just I was under the impression that cat converters only remove a fraction of the pollutants, and aren't what they're cracked up to be. Anyway sounds from the posts that I'm wrong lol.
I take back the 4cyl part too, my bad. I was in a real bad mood when I posted, not proud, sorry guys.

Anyways, apart from the pacies, does anyone have HM headers fitted? Or a custom made set? If so what gains did you get? I think the HM headers are a bit dearer than the pacies, would they be worth the extra money?

Cheers Nic

[private9]

Originally Posted by nikos

Whatever mate, just saying my 2c, i may not agree with your opinion but i'm not going to call you an idiot.

I care a lot about the planet, I do everything I can to keep her clean, its just I was under the impression that cat converters only remove a fraction of the pollutants, and aren't what they're cracked up to be. Anyway sounds from the posts that I'm wrong lol.
I take back the 4cyl part too, my bad. I was in a real bad mood when I posted, not proud, sorry guys.
Cheers Nic

Fair call mate, I'm probably the idiot in this case! I don't think I've ever resorted to mud slinging before on here, just get really annoyed with all these people you hear about hollowing out their cats. I'm not a greenie by any measure of the term, but I also don't go out deliberately destroying our home for future generations.

[nikos]

Originally Posted by private9

Fair call mate, I'm probably the idiot in this case! I don't think I've ever resorted to mud slinging before on here, just get really annoyed with all these people you hear about hollowing out their cats. I'm not a greenie by any measure of the term, but I also don't go out deliberately destroying our home for future generations.

No worries mate, forgotten! Yeah I aint for gutted cats in general, only if someone has a buggered one and can't afford a newb. But I guess you can pick up a stockie pretty cheap anyway. I bought a high flow one myself when I used to have money (then I joined this forum! :togo: :hihi: ).

[josh_hartman]

lol well jc i was going to post up pictures of my car and start my workshop thing but now i wont bother as you will report me. i like my cat converter how it is and wont be changing it because of your threats. May i ask do you ever go to the drags, speedway or anything like that? well if you do you should stop because your so concerned about breathing bad gases, infact why dont you just never fart again aswell. oh sorry over reaction a little. sound familiar?

[JC]

Originally Posted by josh_hartman

lol well jc i was going to post up pictures of my car and start my workshop thing but now i wont bother as you will report me. i like my cat converter how it is and wont be changing it because of your threats. May i ask do you ever go to the drags, speedway or anything like that? well if you do you should stop because your so concerned about breathing bad gases, infact why dont you just never fart again aswell. oh sorry over reaction a little. sound familiar?

Karma is a strange and wonderful thing.

You can post pics of your car up - just edit the rego number out, like I do on every photo I post of mine.


So how does the car go with the new system anyway? Much difference? I think you'll find that if you spent the money (under $300 fitted) on a new high flow cat, you would not lose any power, and would once again be legal.

[Casper]

back on topic please.

[josh_hartman]

umm actually car did lose a bit down low i think and doesnt sound any better. i need an edit

[Bucknaked]

: @ JC's cat crusade. Bwhahaha

[JC]

Originally Posted by josh_hartman

umm actually car did lose a bit down low i think and doesnt sound any better. i need an edit

Mine puffs black smoke on kickdown - I think I also need an edit. In the meantime I'll do an ECU reset and hope that it does something. Funnily enough, this is all since I replaced the cat, which just shows how the stock cat can be a restriction.

: @ Bucky in general!

[sly]

Originally Posted by JC

Mine puffs black smoke on kickdown - I think I also need an edit. In the meantime I'll do an ECU reset and hope that it does something. Funnily enough, this is all since I replaced the cat, which just shows how the stock cat can be a restriction.

: @ Bucky in general!

The stock cat can be one hell of a restriction when the core breaks up into chunks just big enough to cluster around the exit and block it LOL.

I won't tell you what I did to the cat, suffice to say a new 3" metal-cored unit goes in day after tomorrow. Meantime the car has a hard-edged metallic exhaust note and surprisingly snappier performance. Will be interesting to see how much of that goodness is retained with the new cat.

It must've been broken up for a long time - the gas mixture is now out of whack & I'll have to have it retuned to stop it choking at 3000rpm...petrol is a different story though. I can now feel the slight step when the BBM switches over, used to be just a bit more noise and nothing more.