De Cat MOT

sdmegawuk · 28-06-2004, 16:51

So i've just found a very friendly garage who will do me an MOT if i have no cat fitted,

So obviously my next mod will be a de-cat down pipe. Who provides de-cat pipes for the Octy RS and at what price?

Also, does anyone know what the pipe is for attached to the bottom of the air box in Octy RS? (The pipe runs around the front of the block and below the powered steering pump). It's really puzzling me

Cheers
SI

***DGW*** · 28-06-2004, 18:50

Possibly the pipe which goes to the secondary air pump?

Steve vRS · 28-06-2004, 19:55

Hayward and Scott will do a decat for a Tavia. Be warned though, you may pass a MOT (nudge-nudge) but if you're insurance co. decide to be arsey, they could void your insurance in a claim as the car is 'unroadworthy'

That is what Greenlight told me when I had my Impreza - but I did it anyway

Steve

piv34uk · 28-06-2004, 21:24

As an MOT tester

naughty naughty.

Let me know if you find a way around the CEL light from displaying itself,,,,,,,,,,VWvortex suggests several mods; to stop it...

I have a 2 month old OE cat of which i`m debating wether to knock the internals out

while keeping the origanal for MOT reasons

Phil

Stuart_J · 29-06-2004, 06:08

Try Janspeed in Salisbury, as good as Hayward & Scott but cheaper, they will even build a bespoke system foy you should you want something special. Also consider a high flow cat (sports cat) as this keeps it all legal, gets over the cel light problem but will give loads more performance.

DaveU · 29-06-2004, 09:00

Quote:

Originally Posted by Stuart_J

Also consider a high flow cat (sports cat) as this keeps it all legal, gets over the cel light problem but will give loads more performance.

ahhh but it wont give you flames tho'

SkodiRS · 29-06-2004, 09:48

Quote:

Originally Posted by DaveU

ahhh but it wont give you flames tho'

Burger anyone?

sdmegawuk · 29-06-2004, 11:31

What is the purpose of the secondary air pump? does the air going into the induction system from the pump need to be filtered? or can it be plumped in by the MAF to bypass the air filter. (there is a method in my madness, all will become clear in a few weeks)

Cheers
Si

***DGW*** · 29-06-2004, 12:22

Quote:

Originally Posted by skodaw

Mike - the turbine type noise you refer to is the Secondary air pump -- it basically pumps fresh air into the engine on a cold start to keep emmisions down -- once the engine is at normal temp it will stop.
The pump is mounted in front of the engine just slightly right of centre -- and looks a little like a siren.

__________________

***ColinD*** · 29-06-2004, 13:09

I have the stock cat for sale if any body wants it. It's already been added to to allow it to fit back in to a decat system that I used to have.

Will take some pics

But IIRC it basically slotted into it's normal place come MOT time ad when not in a pipe of equal length took it's place. Should be fairly easy to fabricate into anyones system is specified....

fen_l&k · 29-06-2004, 13:17

Quote:

Originally Posted by SkodiRS

Burger anyone?

Ding - fries are done.... Saw a Barry Boy Focus flaming its way through a queue on the A1 last night. Sooooooooo pointless.

Performence reasons

Making flames come out the back

Muppet!

piv34uk · 29-06-2004, 20:51

Colin.......did you manage to stop the CEL light from coming on when you ran a decat

This is my main concern as if it stays on it will mask any other problems.

Phil

DaveU · 30-06-2004, 06:31

No guaranteed fix available as yet but you could try moving the 2nd lambda sensor out of the gas flow by using an extended nut thingy - this is the latest thing they are trying in the states and it seems to be working... Haven't tried it myself yet - will probably wait for one of the mappers to map it out

28-06-2004, 16:51	#1
sdmegawuk Briskodian Join Date: Feb 2004 Location: Northern Ireland/Cumbria Posts: 217 Thanks: 0 Thanked 0 Times in 0 Posts	De Cat MOT So i've just found a very friendly garage who will do me an MOT if i have no cat fitted, So obviously my next mod will be a de-cat down pipe. Who provides de-cat pipes for the Octy RS and at what price? Also, does anyone know what the pipe is for attached to the bottom of the air box in Octy RS? (The pipe runs around the front of the block and below the powered steering pump). It's really puzzling me Cheers SI

28-06-2004, 18:50	#2
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,002 Thanks: 41 Thanked 148 Times in 112 Posts	Possibly the pipe which goes to the secondary air pump? __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP, Jabba rear ARB, and full leather trim by Seat Surgeons ...48.01 mpg...

28-06-2004, 19:55	#3
Steve vRS Briskodian Join Date: Oct 2003 Location: Cumbria and Cheshire Posts: 1,143 Thanks: 1 Thanked 1 Time in 1 Post	Hayward and Scott will do a decat for a Tavia. Be warned though, you may pass a MOT (nudge-nudge) but if you're insurance co. decide to be arsey, they could void your insurance in a claim as the car is 'unroadworthy' That is what Greenlight told me when I had my Impreza - but I did it anyway Steve __________________ From Tavia vRS 230bhp to Impreza WRX STi Version V Type R to Clio 182 Cup and now a vRS TDi Octy II in Lightning McQueen Red

28-06-2004, 21:24	#4
piv34uk NOW @ PEUGEOT Join Date: Nov 2003 Location: Bicester,Oxfordshire Posts: 1,401 Thanks: 29 Thanked 34 Times in 33 Posts	As an MOT tester naughty naughty. Let me know if you find a way around the CEL light from displaying itself,,,,,,,,,,VWvortex suggests several mods; to stop it... I have a 2 month old OE cat of which i`m debating wether to knock the internals out while keeping the origanal for MOT reasons Phil __________________ 1)RED ONE, FEW MODS; AND A HEALTHY 240+ 2)BLACK ONE, LOADSA MODS; AND A HEALTHY 360+ DaveU`s old bus SOLD LACK OF PLANNING ON YOUR BEHALF DOES NOT CONSTITUTE AN EMERGENCY ON MINE

29-06-2004, 06:08	#5
Stuart_J Briskodian Join Date: Jan 2003 Location: Winchester Posts: 5,530 Thanks: 36 Thanked 76 Times in 69 Posts	Try Janspeed in Salisbury, as good as Hayward & Scott but cheaper, they will even build a bespoke system foy you should you want something special. Also consider a high flow cat (sports cat) as this keeps it all legal, gets over the cel light problem but will give loads more performance. __________________ Speed is an addiction for which thankfully there is no cure

29-06-2004, 11:31	#8
sdmegawuk Briskodian Join Date: Feb 2004 Location: Northern Ireland/Cumbria Posts: 217 Thanks: 0 Thanked 0 Times in 0 Posts	What is the purpose of the secondary air pump? does the air going into the induction system from the pump need to be filtered? or can it be plumped in by the MAF to bypass the air filter. (there is a method in my madness, all will become clear in a few weeks) Cheers Si

29-06-2004, 13:09	#10
*ColinD* Site owner Join Date: Oct 2002 Location: Hill & Mountains of North Wales Posts: 10,206 Thanks: 18 Thanked 136 Times in 68 Posts	I have the stock cat for sale if any body wants it. It's already been added to to allow it to fit back in to a decat system that I used to have. Will take some pics But IIRC it basically slotted into it's normal place come MOT time ad when not in a pipe of equal length took it's place. Should be fairly easy to fabricate into anyones system is specified.... __________________ ColinD - 97/100 Limited Edition Octavia vRS < For Sale www.BRISKODA.net :: Site Owner. E-Mail : webmaster at briskoda dot net Got a comment to make about the site? Please feel free to use the feedback form here, we welcome your views.

29-06-2004, 20:51	#12
piv34uk NOW @ PEUGEOT Join Date: Nov 2003 Location: Bicester,Oxfordshire Posts: 1,401 Thanks: 29 Thanked 34 Times in 33 Posts	Colin.......did you manage to stop the CEL light from coming on when you ran a decat This is my main concern as if it stays on it will mask any other problems. Phil __________________ 1)RED ONE, FEW MODS; AND A HEALTHY 240+ 2)BLACK ONE, LOADSA MODS; AND A HEALTHY 360+ DaveU`s old bus SOLD LACK OF PLANNING ON YOUR BEHALF DOES NOT CONSTITUTE AN EMERGENCY ON MINE

30-06-2004, 06:31	#13
DaveU VIP Join Date: Nov 2002 Location: South, then East a little bit. Posts: 2,455 Thanks: 0 Thanked 0 Times in 0 Posts	No guaranteed fix available as yet but you could try moving the 2nd lambda sensor out of the gas flow by using an extended nut thingy - this is the latest thing they are trying in the states and it seems to be working... Haven't tried it myself yet - will probably wait for one of the mappers to map it out __________________ Dave Dave's new runaround ^ The Beast: 2001-2007 (now re-homed). 5 1/2 years of frightening the living daylights out of other road users and ashaming various high end cars.

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