Author |
Topic: De - Catting (Read 1162 times) |
|
cueball57
Newbie
One minute it was ok and then it just went boom!!!
Posts: 10
|
 |
De - Catting
« on: Oct 11th, 2007, 11:05am » |
 Quote  Modify
|
I have read a couple of post's on here about de-catting to improve the power. How would this effect the mot, or do you just put the cat's back on for the test.
|
|
 IP Logged |
|
|
|
Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
|
|
Re: De - Catting
« Reply #1 on: Oct 11th, 2007, 2:11pm » |
Quote Modify
|
My 24v still passes the emission test with the cat internals removed but not by much 
|
|
IP Logged |
on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
|
|
|
|
martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
|
|
Re: De - Catting
« Reply #2 on: Oct 11th, 2007, 3:51pm » |
Quote Modify
|
when I enter details of my 24v into DOT computer it says test as non cat.
|
|
IP Logged |
Rally Drivers Do It Sideways
|
|
|
cossie_al
Full Member
Ex 24v
Posts: 902
|
|
Re: De - Catting
« Reply #3 on: Oct 12th, 2007, 12:51pm » |
Quote Modify
|
my 24v failed its mot on emisions So I replaced the cats and found the old ones were completely empty.
I found no difference in power when I put the new cats on.
|
|
IP Logged |
|
|
|
Tons_of_fun
Full Member
Mmmm...Xena !
Posts: 978
|
|
Re: De - Catting
« Reply #4 on: Oct 12th, 2007, 2:25pm » |
Quote Modify
|
My cat actually fell apart internally,so i emptied it out & re fitted.Had the emissions checked purley out of intrest and was told it will fail.Dont honestly think the car performs any better either
|
|
IP Logged |
Lord...Sometimes im not that bright
|
|
|
dan_the_man
Full Member
I'm a YaBB newbie!
Posts: 314
|
|
Re: De - Catting
« Reply #5 on: Oct 12th, 2007, 5:19pm » |
Quote Modify
|
I'll let you know how I go performance wise once my new cat's are fitted. running empty at the moment. I have timed a 0-60 a couple of times and intend to do so again on the same roads with them in . my blowing manifould will be repaired so a slight advantage will be given to the cat's on test !
I like the sound with them out though .
|
|
IP Logged |
|
|
|
cossie_al
Full Member
Ex 24v
Posts: 902
|
|
Re: De - Catting
« Reply #6 on: Oct 14th, 2007, 7:26pm » |
Quote Modify
|
I am of the opinion that if your engine is in good condition and running perfectly you may just get through the emissions test with empty/no cats.
But as I said, I found no difference in performance between new and no cats 
|
|
IP Logged |
|
|
|
Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
|
|
Re: De - Catting
« Reply #7 on: Oct 16th, 2007, 1:30am » |
Quote Modify
|
removing the cats would only give you another 5-10 bhp (unless you are the guy on ebay the other week who gained 100Bhp lol) so you would hardly notice. i dont notice any difference but i know its there 
One day i'll get it on a rolling road!! 
|
|
IP Logged |
on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
|
|
|
|
scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
|
|
Re: De - Catting
« Reply #8 on: Oct 16th, 2007, 8:14am » |
Quote Modify
|
hi there
de-catting appears to make most difference to the 16valve engine when done with a proper de-cat pipe.
might be something to do with 4 cylinders going into the cat than 3 from the v6.... less backpressure on the v6?
does on mine, anyway.
|
|
IP Logged |
|
|
|
Alastair
Full Member
2.3 Ghia X & MGB Roadster
Posts: 129
|
|
Re: De - Catting
« Reply #9 on: Oct 16th, 2007, 10:34pm » |
Quote Modify
|
Hi Andrew
Was the de-catting prior to your last MOT - emissions OK ??
Alastair
|
|
IP Logged |
|
|
|
scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
|
|
Re: De - Catting
« Reply #10 on: Oct 16th, 2007, 10:39pm » |
Quote Modify
|
on Oct 16th, 2007, 10:34pm, Alastair wrote:Hi Andrew
Was the de-catting prior to your last MOT - emissions OK ??
Alastair |
|
sorry alastair
i run on lpg, so no issue at MOT time (and have a friendly MOT man )
|
|
IP Logged |
|
|
|
dan_the_man
Full Member
I'm a YaBB newbie!
Posts: 314
|
|
Re: De - Catting
« Reply #11 on: Nov 18th, 2007, 4:38pm » |
Quote Modify
|
as I said earlier in this post, I'd update you on performance with ref to the cat's. exactly the same on 2 0-60 tests. with the manifould fixed. she runs much better at tickover now with the cat's in .
|
|
IP Logged |
|
|
|
|
Home
Help
Search
Members
Login
Reply
Send Topic
Print