decat MOT help

  1. #1
    i still have the full standard exhaust system in the garden stashed away, but i dont want to have to put my standard manifold back on.

    currently i have a raceland 421 and a full supersprint racetube with backbox.

    http://www.onlineautomotive.co.uk/Pr...egoryID=114063

    if i buy this and use it to replace my supersprint tube for the mot will it fit correctly?

    OR if i buy a cat only, will i be able to use the standard pipe i already have?

    really confused
  2. #2
    Can you not use your standard exhaust with the Raceland mani then?

    I had a standard mani with an aftermarket exhaust so assumed it would be ok the other way round?
  3. #3
    Quote:
    Originally Posted by devilsadvocate View Post
    Can you not use your standard exhaust with the Raceland mani then?

    I had a standard mani with an aftermarket exhaust so assumed it would be ok the other way round?
    well i could yes, but my car is an 02 plate with the cat in the manifold.

    so the exhaust i have doesnt have a cat under the car like mk1s and apparently all VTS

    so i have to go and buy a pipe under the car with cat, or maybe just cat and use the pipe i have.

    not sure :@
  4. #4
    save yourself money, put everything standard back on, mot and be happy for another year.

    Srsly if you have everything standard to put back on, why waste money? take mani off, pull the rest of the system out in one. Top job.
  5. #5
    Quote:
    Originally Posted by mlawlan69 View Post
    well i could yes, but my car is an 02 plate with the cat in the manifold.

    so the exhaust i have doesnt have a cat under the car like mk1s and apparently all VTS

    so i have to go and buy a pipe under the car with cat, or maybe just cat and use the pipe i have.

    not sure :@
    Ahhh didn't think about the CAT in the mani one!

    Can you not just get a Mk1 (or VTS) CAT and use that instead?
  6. #6
    Quote:
    Originally Posted by Prickle View Post
    save yourself money, put everything standard back on, mot and be happy for another year.

    Srsly if you have everything standard to put back on, why waste money? take mani off, pull the rest of the system out in one. Top job.
    ball ache, plus not sure if it would go back on as the oil filter is now on the block, so i guess the standard mani cat wont go back on.

    easier to weight what i have in and just get an under the car on, just not sure if the link i posted is the right one
  7. #7
    Would a lambda sensor reach underneath seeing as they're in the manis? or can you extend them or what?
  8. #8
    fuck knows, thats why im so confused, sleeving it would work, no?
  9. #9
    I'm set to be in the same situation as yourself and my theory was this....
    Keep the performance 4-1/4-2-1 manifold on
    Buy a VTS undercar CAT and full system
    Swap your manifold back system, for the CAT system come MOT time
    Sleeve the second lambda, never needs plugging back in

    Agreed?
  10. #10
    excuse me mr tester, as you can see my car doesnt have a catalytic converter. it might be obvious that i am a car enthusiast, and not a secret spy sent out by vosa to inspect you, srs.

    would it be possible to accidently trip over the emissions probe once its been inserted into my tail pipe?


    it works.
  11. #11
    Quote:
    Originally Posted by dolby20 View Post
    I'm set to be in the same situation as yourself and my theory was this....
    Keep the performance 4-1/4-2-1 manifold on
    Buy a VTS undercar CAT and full system
    Swap your manifold back system, for the CAT system come MOT time
    Sleeve the second lambda, never needs plugging back in

    Agreed?
    yes but the full systems seem to be a few hundred quid!

    which is why im confused as to the link i have posted whether it will work or not lol.
  12. #12
    Quote:
    Originally Posted by Tontsy View Post
    excuse me mr tester, as you can see my car doesnt have a catalytic converter. it might be obvious that i am a car enthusiast, and not a secret spy sent out by vosa to inspect you, srs.

    would it be possible to accidently trip over the emissions probe once its been inserted into my tail pipe?


    it works.
    ^^^ This sounds like perfect advice! - Clumsy coming through!

    Quote:
    Originally Posted by mlawlan69 View Post
    yes but the full systems seem to be a few hundred quid!

    which is why im confused as to the link i have posted whether it will work or not lol.
    A full VTS system?
    Really?
    I couldn't follow your link strangely....
  13. #13
    Quote:
    Originally Posted by Tontsy View Post
    excuse me mr tester, as you can see my car doesnt have a catalytic converter. it might be obvious that i am a car enthusiast, and not a secret spy sent out by vosa to inspect you, srs.

    would it be possible to accidently trip over the emissions probe once its been inserted into my tail pipe?


    it works.
    You should of done my mot.

    The fuckers failed me on .1 on the fuck emissions. :/
  14. #14
    I got a full VTS system sitting in the loft ready for my MOT, could have borrowed it if you were closer

    For the sake of £50 or so for the standard system (2nd hand), its worth keeping one in the loft/garage/shed for MOT time.

    Your only options really are:

    1. Get a Mk1 (or VTS) system.
    2. Stick your standard mani back on.
    3. Give the MOT tester a BJ.
  15. #15
    Quote:
    Originally Posted by devilsadvocate View Post
    I got a full VTS system sitting in the loft ready for my MOT, could have borrowed it if you were closer

    For the sake of £50 or so for the standard system (2nd hand), its worth keeping one in the loft/garage/shed for MOT time.

    Your only options really are:

    1. Get a Mk1 (or VTS) system.
    2. Stick your standard mani back on.
    3. Give the MOT tester a BJ.
    That's the price I was thinking! About £50!
    And that means option 1 for me....
  16. #16
    Quote:
    Originally Posted by Heftydanielson View Post
    You should of done my mot.

    The fuckers failed me on .1 on the fuck emissions. :/
    a large McDonalds Coke solves all emissions problems
  17. #17
    yeah im definately going to get a mk1 system ha, just on that website i have linked there is a cat and pipe for £45 !

    it's for a 98 mk1 however if this would make a difference?
  18. #18
    Quote:
    Originally Posted by Tontsy View Post
    a large McDonalds Coke solves all emissions problems
    So some rola cola and ice?
  19. #19
    Quote:
    Originally Posted by mlawlan69 View Post
    yeah im definately going to get a mk1 system ha, just on that website i have linked there is a cat and pipe for £45 !

    it's for a 98 mk1 however if this would make a difference?
    any mk1 vts cat system should surely work - pm mandyslover?
  20. #20
    Quote:
    Originally Posted by mlawlan69 View Post
    yeah im definately going to get a mk1 system ha, just on that website i have linked there is a cat and pipe for £45 !

    it's for a 98 mk1 however if this would make a difference?
    That's what you want mate, a Mk1 VTR exhaust + cat

    Or any form of VTS as they had the CAT under the car for both Mk1 and Mk2
  21. #21
    Quote:
    Originally Posted by dolby20 View Post
    So some rola cola and ice?
    meh anything will do.
    pref something that will keep me occupied for 45 minutes whilst i "do the test"
  22. #22
    Quote:
    Originally Posted by Tontsy View Post
    meh anything will do.
    pref something that will keep me occupied for 45 minutes whilst i "do the test"
    if only you were nearer and my game boy colour had some batteries.... if only
  23. #23
    Quote:
    Originally Posted by dolby20 View Post
    if only you were nearer and my game boy colour had some batteries.... if only
    pop it in the post, along with your log book and some munnehz!
    ill return it next day with no munnehz and a pass.

    although, id keep an eye on that tyre thats getting low, and the sticky boot lock...advisorys always suck.
    1 user thanked this post:
  24. #24
    Quote:
    Originally Posted by Tontsy View Post
    pop it in the post, along with your log book and some munnehz!
    ill return it next day with no munnehz and a pass.

    although, id keep an eye on that tyre thats getting low, and the sticky boot lock...advisorys always suck.

    I shall send no games, out of spite for the advisories.
  25. #25
    Quote:
    Originally Posted by dolby20 View Post
    I shall send no games, out of spite for the advisories.
    i have the camera and printer thats compatable with the GB colour!

    THIS SHIT ROCKS!

  26. #26
    Quote:
    Originally Posted by Tontsy View Post
    i have the camera and printer thats compatable with the GB colour!

    THIS SHIT ROCKS!


    Ho.
    Lee.
    Shit.
  27. #27
    Quote:
    Originally Posted by mlawlan69 View Post
    ball ache, plus not sure if it would go back on as the oil filter is now on the block, so i guess the standard mani cat wont go back on.

    easier to weight what i have in and just get an under the car on, just not sure if the link i posted is the right one
    This was my idea.

    Ended up pissing away £250 on exhausts and CATs, bought a GMC lambda sleeve, and could never get it to pass emissions test.

    Ended up refitting the standard manifold, refitting the mk2 oil filter (actually easier than I thought), and spending another £100 on a new manifold CAT, and wasted about 3 weeks with my car off the road with no MOT.


    The problem with it all will be that the Lambdas will never be happy and give a good reading.


    I now have a Raceland 4-1, which has a lambda port right at the top next to the cylinder, which I'm running a brand new Bosch in, and another Lambda port further down which I've got my second Bosch plug in on the end of an extender so it only gets a tiny bit of gas reading.

    This setup seems to work really well, and I think it would probably pass an MOT if not for the new law that if it had a cat one had to be visible, this is where the dummy cat comes in but thats another matter
  28. #28
    Quote:
    Originally Posted by dolby20 View Post
    Ho.
    Lee.
    Shit.
    new thread needed! appreciation thread for retro games FTMFW!