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mlr

MLR's Bogan cruise ship

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In other news, I'm looking at some new cats, the current 100 cell cats are of questionable quality and don't really do much, the Mrs has made note if the "stink" from the exhaust

I love the stink, but, as long as I keep her relatively happy with the noises and smells the car makes I'm pretty much free to "mod away"

Plus if I was ever pulled over and sent to a emissions test I'm not confident it would end well

So.....

I'm looking at some 400 cel euro 5 type (the 2002 vx is euro 3) from Racecraft which are currently at $450 

vtz3_1800x1800.thumb.jpg.3c6faae6bfd73f8809133d1f593a206f.jpg

This is about half the cost of a quote from an exhaust shop that quoted me for 200 cell, which really wouldn't be much better than my current 100 cell

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I was able to buy some 5in body 400 cell cats (x2) which had 3in pipe either side. I can confirm they work and may be cheaper, I want to say they were just under $200 each.

Venom Exhaust Weld in high Flow stainless 3" 76mm 400 cell Cat Catalytic Converter (mrcperformance.com.au)

They do remove smell, because I have 'cat delete pipes' that can be swapped in with vbands.

These delete pipes sit in a box, because.. they do not seem to impact performance at all, and fix the smell, and .. well, the cats make the car sound better lol.

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13 minutes ago, Kinkstaah said:

I was able to buy some 5in body 400 cell cats (x2) which had 3in pipe either side. I can confirm they work and may be cheaper, I want to say they were just under $200 each.

Venom Exhaust Weld in high Flow stainless 3" 76mm 400 cell Cat Catalytic Converter (mrcperformance.com.au)

They do remove smell, because I have 'cat delete pipes' that can be swapped in with vbands.

These delete pipes sit in a box, because.. they do not seem to impact performance at all, and fix the smell, and .. well, the cats make the car sound better lol.

 

Won't pass an emissions test though. Used to have one on my car when it was a street car, but it failed the Euro 3 standards even on E85. Was going to buy a certified Euro 4 cat to replace it but ended up taking the car off the road instead.

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9 minutes ago, Unzipped Composites said:

 

Won't pass an emissions test though. Used to have one on my car when it was a street car, but it failed the Euro 3 standards even on E85. Was going to buy a certified Euro 4 cat to replace it but ended up taking the car off the road instead.

Mine did... for the same year/motor combination that OP has 😛 through the IM240 in NSW which is far and beyond more stringent than the 5 gas test WA does.

The kicker for me was it was the only one I could find that was a 3in 400 cell cat, and its worth mentioning I have two of them, one in each bank, as I have a 2x 3in exhaust into a 3.5in.

... and they are also behind 100 cell cats, which are further up the bank!


Just sayin they do work for the make/model that this thread is relevant for, but I probably would have paid the extra for the racecraft ones, but trying to get information on them other than "Cell" and "Euro" spec was impossible at the time.

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1 hour ago, Kinkstaah said:

Mine did... for the same year/motor combination that OP has 😛 through the IM240 in NSW which is far and beyond more stringent than the 5 gas test WA does.

The kicker for me was it was the only one I could find that was a 3in 400 cell cat, and its worth mentioning I have two of them, one in each bank, as I have a 2x 3in exhaust into a 3.5in.

... and they are also behind 100 cell cats, which are further up the bank!


Just sayin they do work for the make/model that this thread is relevant for, but I probably would have paid the extra for the racecraft ones, but trying to get information on them other than "Cell" and "Euro" spec was impossible at the time.

 

Fair enough, I stand corrected!

I'll admit, I had never noticed any smells and when on 98 it would take a good few months of driving without washing before any soot developed on the rear bar, so they obviously did something. I had always been content with it until it failed the emissions test, which as you say is only a 5 gas test. My package just needed a different combination I guess.

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It is interesting how the tests are run, my car was well worse on idle instead of driving around, given the WA test is an idle test mileage may vary. My stupid V8 cam was a huge detriment though. (unburned fuel is bad for emissions...)

I would have gone ceramic if I had've seen them prior though, because its probably better than steel ones, otherwise why would every OEM use ceramics instead of steel ones. But now that I'm passed I'm happy they're steel, so who knows, worked out in the end.

Either one will remove the smell though!

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29 minutes ago, Kinkstaah said:

It is interesting how the tests are run, my car was well worse on idle instead of driving around, given the WA test is an idle test mileage may vary. My stupid V8 cam was a huge detriment though. (unburned fuel is bad for emissions...)

I would have gone ceramic if I had've seen them prior though, because its probably better than steel ones, otherwise why would every OEM use ceramics instead of steel ones. But now that I'm passed I'm happy they're steel, so who knows, worked out in the end.

Either one will remove the smell though!

How did you find the 400 cell in relation to the tune, did it richen it up by much?

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1 minute ago, mlr said:

How did you find the 400 cell in relation to the tune, did it richen it up by much?

This is how I figure it made no difference, closing the varex for example richens up the AFR significantly (12.9 to 11.0) as revs climb for obvious reasons, and about half a point at idle actually. (14.7 to like 14.3ish).

Swapping the cats (plural, I have two) with 2x 3in straight pipes resulted in an 0.0 AFR change at the same road with same conditions, I made a day of it specifically testing this exact thing. And the cats fit better. I wish I had flex joins in my exhaust, vbands are great but... there is 0 compliance with them.

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