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Thread: 2nd Catalytic Converter Value?

  1. #16
    The Non-PC Club Member Frank Bullitt's Avatar
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    Quote Originally Posted by blythmrk View Post
    No I am told that’s how a facelift one is as standard!
    The one I was given last year wasn’t and it came straight of a newly imported freshly decatted vvt-i tiptronic. I could’t see Toyota removing the cat in the midpipe and adding vvt-i to the engine.

    I’m going to check again but I can’t remember seeing anything mentioned in terms of a revision in any of the paperwork I have. None of my Japanese Toyota tech manuals show anything either.

    Mine is November ‘97.

  2. #17
    Work... what work? Club Member jjs_82's Avatar
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    As I said the facelift only has one cat.

  3. #18
    The Non-PC Club Member Frank Bullitt's Avatar
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    Quote Originally Posted by jjs_82 View Post
    As I said the facelift only has one cat.
    How are you so certain?

  4. #19
    Me? Post? Never! Club Member jim_supra's Avatar
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    Quote Originally Posted by jjs_82 View Post
    As I said the facelift only has one cat.
    Which Cat is it that is no longer used in the facelift, 1st or 2nd?
    '94 Storm Blue Aerotop with an NA - TT Conversion

    See my Supra here: My Garage

  5. #20
    51773 Club Member ellis's Avatar
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    Quote Originally Posted by jjs_82 View Post
    As I said the facelift only has one cat.
    My last Supra was a facelift and it most definitely had 2 (until they were both removed!)

  6. #21
    Work... what work? Club Member jjs_82's Avatar
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    The first one just after the turbo is a cat the next one is a silencer.

  7. #22
    Work... what work? Club Member jjs_82's Avatar
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    Quote Originally Posted by Frank Bullitt View Post
    How are you so certain?
    Same inside as a rear box

  8. #23
    What search button? MEMBERSHIP EXPIRED
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    There is small cat in 2nd long cat pipe, I can't see younger cars haven less cats emissions be through the roof, supra won't pass mot/nct emissions without one of the cats in, the 1st cat is for start up so make sure your car is roasting going for test or won't pass idle, 2nd cat is for under load from memory around 2.5k rpm. 2nd cat brings co down and hc under 200ppm.

  9. #24
    Did somebody say carbon? Club Member Ric's Avatar
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    Quote Originally Posted by jjs_82 View Post
    Same inside as a rear box
    It has 2 and has always had 2. It just doesn't look big and chunky like the first one.

  10. #25
    Work... what work? Club Member jjs_82's Avatar
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    I was trying to put a picture up. Did anyone have a look inside it? Have a look

  11. #26
    Work... what work? Club Member jjs_82's Avatar
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  12. #27
    Helpful Club Member Scooter's Avatar
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    ......
    Last edited by Scooter; 11-01-19 at 10:55.
    Number 8 ...........doing my best to keep
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  13. #28
    Helpful Club Member Scooter's Avatar
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    The facelift second cat is different to the prefacelift, cheaper on amayama etc. If you look down the end the pipe 'looks' straight through, whereas on the prefacelift you see a 'solid' homeycomb across the whole of the inside (like the 1st cats have).What I'm not sure of is if the straight pipe facelift one has no catalytic properties at all?

    http://www.mkivsupra.net/vbb/showthr...light=internal

    http://www.mkivsupra.net/vbb/showthr...highlight=pipe
    Number 8 ...........doing my best to keep
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    Number 10 ........on its way

  14. #29
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    The facelift second cat is less than half the new price of the pre-facelift second cat which tells you a lot. A new pre-facelift last time I checked was around 1,400 and facelift was around 600. If you look into the second cat chamber its a ceramic honeycomb in the pre-facelift and a void in the facelift.

    As for base price then there are companies who recycle scrapped cats so they can be contacted for a scrap value which for the pre-facelift Supra I'd expect to be around 60. You could contact these and others for a scrap price.

  15. #30
    Helpful Club Member Scooter's Avatar
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    Which mirrors my findings, it would be perhaps harsh to think the 600 'cat' is nothing more than a decat pipe though!? I suspect that it's a cheaper way of providing 'just enough' re emissions, ie the original dual honeycomb setup was overkill and the facelift one has far less platinum etc in it?
    Number 8 ...........doing my best to keep
    Number 9 ........been and gone!
    Number 10 ........on its way

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