Sports cats! - Are the worth the extra dosh? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Generation

Member

Registered: 7th Jul 09
Location: Essex
User status: Offline

27th Oct 10 at 21:17

Discuss, I'm in two minds

ShEp

Member

Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline

27th Oct 10 at 21:22

No.

Get a swapable de-cat.

DannyB

Premium Member

Registered: 6th Feb 08
User status: Offline

27th Oct 10 at 21:22

quote:
Originally posted by ShEp
No.

Get a swapable de-cat.

Very much this.

I bought a cat for my MOT the other day and couldn't wait to get it off, so restrictive.

Generation

Member

Registered: 7th Jul 09
Location: Essex
User status: Offline

27th Oct 10 at 21:23

More benefits from one of the other? in terms of performance? every little helps

thanks

DannyB

Premium Member

Registered: 6th Feb 08
User status: Offline

27th Oct 10 at 21:27

Mine was quite flat mid range with a CAT on, didn't pop and bang as much either

Generation

Member

Registered: 7th Jul 09
Location: Essex
User status: Offline

27th Oct 10 at 21:27

have seen a "100cell! sports cat for sale cheap, probably cheaper than a decat,

DannyB

Premium Member

Registered: 6th Feb 08
User status: Offline

27th Oct 10 at 21:29

Cheaper than a bit of pipe and a clamp?

Generation

Member

Registered: 7th Jul 09
Location: Essex
User status: Offline

27th Oct 10 at 21:30

Fair point. haha. But for the price, its not really a problemt either way.
If money wasnt the object what would you go for Danny

DannyB

Premium Member

Registered: 6th Feb 08
User status: Offline

27th Oct 10 at 21:31

De-cat section and buy a CAT for Mot's, without a doubt.

Colin

Member

Registered: 4th Apr 02
User status: Offline

27th Oct 10 at 21:37

Hassle switching about for an MOT though...depending on which car it can sometimes be a bawjob if you dont have access to a ramp!!?

I'd go for the sports cat if its a bargain...fit it & no worries.

ShEp

Member

Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline

27th Oct 10 at 21:45

Nah those cheap sports cats are pish.

They're not type approced and will have to be changed for an MOT anyway colin.

So it's a waste of money when a de-cat can be made for next to nothing.

By all means if you have your heart set on a sports cat make sure it's type approved or it'll be a waste of dosh.

Kurt

Member

Registered: 23rd Oct 05
Location: Hi
User status: Offline

27th Oct 10 at 21:51

Trouble with newer cars is the eml light, I had a decat on my punto but it faulted every 200 miles with a lamba plausibility error

chloe16v

Member

Registered: 29th Nov 07
Location: Rotherham
User status: Offline

27th Oct 10 at 22:04

i was told that if the car has 2 lamba sensors, then to take the rear one out of the de-cat and tie wrap it under the car then just block the hole up in the de-cat, this will give you 2 different readings from the lambas and wont kick the fault code up,never got round to doing it on the astra though before it got smashed up

Generation

Member

Registered: 7th Jul 09
Location: Essex
User status: Offline

27th Oct 10 at 22:05

its for a corsa b 1.6.

Asss ache doing myself TBH, space and time is limited and car is a bastard to get into air as its too low.
Which would mean getting changed over every year. How often are the "pops and bangs" don't wnat it evry 2 mins like a pikey

chloe16v

Member

Registered: 29th Nov 07
Location: Rotherham
User status: Offline

27th Oct 10 at 22:08

every time i put my foot down

although that was on a 2.2 astra

Kurt

Member

Registered: 23rd Oct 05
Location: Hi
User status: Offline

27th Oct 10 at 22:18

quote:
Originally posted by chloe16v
i was told that if the car has 2 lamba sensors, then to take the rear one out of the de-cat and tie wrap it under the car then just block the hole up in the de-cat, this will give you 2 different readings from the lambas and wont kick the fault code up,never got round to doing it on the astra though before it got smashed up

In the Honda scene there are o2 simulators which hardwire into the lamba wiring.. I think it's the pre cat sensor that faults anyway, certainly was on my punto

I have heard about sleeving lambas too and blanking off the hole

Back to op though, b's dont flag an error iirc? Just run a decat it you know a "friendly" mot

djgritt

Premium Member

Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
User status: Offline

27th Oct 10 at 22:48

I run a decat on my 1.4 Sport normally, just had to refit a Cat for the MOT - as Danny said, you can tell the restriction is there once you swap the 2 around!

Decat is definitely going back on once the MOT is done

LeeM

Member

Registered: 26th Sep 05
Location: Liverpool
User status: Offline

27th Oct 10 at 22:53

quote:
Originally posted by Kurt

quote:
Originally posted by chloe16v
i was told that if the car has 2 lamba sensors, then to take the rear one out of the de-cat and tie wrap it under the car then just block the hole up in the de-cat, this will give you 2 different readings from the lambas and wont kick the fault code up,never got round to doing it on the astra though before it got smashed up

In the Honda scene there are o2 simulators which hardwire into the lamba wiring.. I think it's the pre cat sensor that faults anyway, certainly was on my punto

I have heard about sleeving lambas too and blanking off the hole

Back to op though, b's dont flag an error iirc? Just run a decat it you know a "friendly" mot

A precat lambda shouldn't be affected by a decat at all.

Kurt

Member

Registered: 23rd Oct 05
Location: Hi
User status: Offline

27th Oct 10 at 22:56

Strange then, even came up as lamba 1 on the fiat examiner

sand-eel

Member

Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline

27th Oct 10 at 22:59

I wouldn't bother at all, keep seeing these fucking VOSA emissions vans pulling random people.

Phillips_91

Member

Registered: 20th Jan 10
Location: Blackpool. Drives: Sapphire Black Mk4 Astra 1.8
User status: Offline

28th Oct 10 at 01:10

type approved cats only apply to cars registered on or after march 2001

Rob B

Member

Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline

28th Oct 10 at 01:40

to remove a CEL you space the screw in point for the lambda furthur out so the gases don't pass as much.

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

28th Oct 10 at 13:30

I have a sports cat on my 182 and also suffer with bloody eml lights. Anyone worth their salt will not remove the rear lambda and bung it up as this only makes the car drive like shit also confuses the ecu so you get weird readings resulting in emls coming on (the reason you did it in the firstplace) and if your extra unlucky it will melt the sensors wires and render the car in limp home mode an kill the sensor.
Bodge jobs are not worth it. Remap will sort it but that's more expensive (in the short term)

corsadonk

Premium Member

Registered: 4th Jul 09
Location: Marlborough, Wiltshire
User status: Offline

28th Oct 10 at 16:43

I've got a spare CAT in the shed, and was gonna make a de-CAT with it. Is it worth the hassel then?

chrisritch

Member

Registered: 2nd Sep 08
Location: Northants Drives: V40
User status: Offline

28th Oct 10 at 16:53

quote:
Originally posted by Generation
Discuss, I'm in two minds

whats not to like about them

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