DIY CAT

[sandy]

Hi ppl, im just wondering if drilling out my standard CAT would work, i.e making it into a sports cat that has less cells. If a drill a few holes through and make it less restrictive it should still work but will be less restrictive shouldnt it??

Any advise would be great, cheers guys!!

 

[Rossy197]

Maybe but from what i've heard some cats are made of porcelain like china and once cracked can quickly deterorate so maybe drilling a hole here and there will cause it to breakdown quickly leaving you with a blocked exhaust and in need of a new cat, maybe buy a sports cat or de-cat it

 

[chrisbmxr]

I think the actual catalitic part of the cat is a brittle brick isn't it?

If so, drilling it would probably break it up. Even if it did work, i would've thought it would still fail an emissions test!

I'm not sure though. I'm sure someone cleverer will be along to help lol ...

 

[chrisbmxr]

oh, someone already has lol

 

[sandy]

so are all cats very fragile inside then? I just thought it would be a cheap and easy way of getting a sports cat.

 

[Rossy197]

Some are very fragile, You do get cats with a metal honey comb inside as i have it on mine but i got a sports cat, TBH im not too clued up on cats all i know is the inside is coated in a chemical and when the emissions flow from the engine they go into the cat and a chemical reaction occurs with the fumes and the said chemical, the result cleaner emmisions upon exit of the cat, Fewer cells = less restrictive but tbh i dont know how big the power gain is from say 400 cell to 200, cant imagine it'll be big maybe 1-2 bhp

 

[sandy]

cheers rossy

 

[Rossy197]

No probs fella glad i could help sort of lol

 

[sandy]

ha, well its kinda cleared my head on the issue. I have a ctr ep3 and there are no sports cats you can realy buy from them unless you pay like £1000 on a mugen sports cat and manifold. Sod that lol!!

 

[Rossy197]

Ouch ! Paid £200 for mine lol

 

[sandy]

haha nice mate, Well i could just get a manifold and decat for it which would cost around £300 but i dont fancy having the dash light on! things are never simple with cars lol!

 

[s4lkk]

tdi north are in warrington and are good with civics, give them a call

 

[Rossy197]

Decat it and get the emmissions light turned off by an OBD reader ?

 

[sandy]

cheers s4lkk, iv herd very good things about tdi north but there part are expensive but i suppose they could help me with my light.
Rossy what is an OBD reader? is it one of them fake relay things?

 

[jesus]

Take the cat off, get a trolly jack handle down it and hammer it in a bit until it smashes. Get rid of all the crap that's left in the cat and then put it back on.

 

[Rossy197]

No lol i think its a "clip" plugs into the on board computer and talks to the ECU

Or follow JME's method.. should work !

 

[sandy]

oh ryte, sounds pretty good. any idea where a can pick this "clip" up from lol?
cheers

 

[Rossy197]

well there specific to manufacturers, or go to a garage and get it turned off, can buy a cheap one for my rs for £40 - prob piece of cr*p but if its only for that then worth a try i spose

 

[sandy]

ok cheers pal. Btw since u seem to no your stuff, do you know how to input the headunit code on a clio? I put my standard headunit back it and it doesnt work. everytime a press a button it just beeps. Is there a special combination of buttons i need to press for me to then type the code in, if you get me??
cheers

 

[Rossy197]

Oohh now your asking ! I did it once too, Got my book in my car as it happens, I'll check in a min and report back asap

 

[jesus]

You'll need a code-reader if you want to get rid of the warning light, you can get them off eBay (search OBD II Code reader) or K-Tec.

 

[Rossy197]

Start car & switch on stereo
It will prompt you for the code by flashing four ----
On your stereo there are 6 buttons for preset radio channels
If the code is 1234 then you press button No 1 once.
No 2 twice
No 3 thrice
No 4 well four times.
You get the idea. When the code is right, press the tuning button or similar ( not the numbered buttons....!) And there you go.

 

[sandy]

nice 1 mate, cheers

 

[sandy]

thanks for the help, just need to find out what my code is now lol. when i last started the car it didnt come up with the code ---- it didnt do anything apart from bleep when i pressed a button? oh wel

 

[Reyes]

How ghetto.