First Cat broken!

[Sherrard50]

Hi All,

My first post on here. I've had my 200 FF with the cup chassis for just over a year now. Loved it so far until a few days ago an unusual rattle made an appearance. Long story short the first cat after the manifold is knackered. I don't have the money to replace that at the moment so I guy I know said for now you could remove the internals of the broken one. Reading around it looks like you only need the main cat of course emissions anyway.

So I have two questions;

1: does anyone know if this will bring the engine management light on? Or harm my economy?

2: will it exaggerate the flat spot?

All feed back would be appreciated

 

[Doogle]

From what I understand:

1. It shouldn't do, if anything after a map you will see a slightly better economy because of less restriction, but its minimal.
2. Mixed reports, depends how sensitive you are. A remap to even out the flatspot these cars have anyway is a good idea.

 

[wattson]

I've a Toyosport manifold which comes without the first cat and I haven't experienced any of the problems you listed. As far as I know removal of the main (second) cat results in these, not the first one.

 

[GU55SSY]

Sorry to clog the post, my manifold is completely ruined that’s currently on my 197, I’ve purchased a used manifold off eBay and judging by the photos it hadn’t done a lot of miles. When I move it around/shake it there’s a noise coming from the cat sounds like the internals have come loose? Does this mean the cat is useless? Am I as well judging binning it?

 

[Chris]

Sorry to clog the post, my manifold is completely ruined that’s currently on my 197, I’ve purchased a used manifold off eBay and judging by the photos it hadn’t done a lot of miles. When I move it around/shake it there’s a noise coming from the cat sounds like the internals have come loose? Does this mean the cat is useless? Am I as well judging binning it?

Sounds so... you could weld in new flexis!

 

[Benno]

Sorry to clog the post, my manifold is completely ruined that’s currently on my 197, I’ve purchased a used manifold off eBay and judging by the photos it hadn’t done a lot of miles. When I move it around/shake it there’s a noise coming from the cat sounds like the internals have come loose? Does this mean the cat is useless? Am I as well judging binning it?

Cut it out and dig out the internals, weld it back together and away you go.

 

[Sherrard50]

Bit of an update, can't really tell what it's like with the cats internals removed. My flexi quickly went down hill and now sounds like a tractor. Luckily the nice folks at Evans halshaw have cats covered under their Warranty, so it's a good job that's attached to the manifold. I get a new one

The car is currently running really lean, terrible to drive at the moment...

 

[Chris]

Bit of an update, can't really tell what it's like with the cats internals removed. My flexi quickly went down hill and now sounds like a tractor. Luckily the nice folks at Evans halshaw have cats covered under their Warranty, so it's a good job that's attached to the manifold. I get a new one

The car is currently running really lean, terrible to drive at the moment...

Cracking result that! Ask to keep the old one and chop+weld a new one in!!

 

[Sherrard50]

Cracking result that! Ask to keep the old one and chop+weld a new one in!!

That's a good idea! Would anyone be interested in it?