running with out a cat

rud3boi · Post by **rud3boi** » Sun Jan 06, 2008 6:25 am

hey guys first post and the its on my bday to
umm this calls for a yay!!!!

anyway i was wondering how bad it is to run with out a cat converter i dont really car about gas milage i just dont wanna break my engine or burn it or something.
wat do yall suggest i still have the stock 2.25 exhust so i still have back pressure. thank you

Wenuden · Post by **Wenuden** » Sun Jan 06, 2008 6:53 am

all a cat does is burn any excess fuel in your exhaust gasses. It's unnecessary, but power gains are negligable. All removing it does is give the cops another reason to pull you over.

BlackRoseRacing · Post by **BlackRoseRacing** » Sun Jan 06, 2008 8:15 am

Unless its defective, don't touch it...
Its illegal to alter or remove it in most states...
As for gains, depends on who you talk to, some people actually have lost power by removing it....

Wenuden · Post by **Wenuden** » Sun Jan 06, 2008 8:43 am

I found dyno results on srtforums on the 3" single exit I bought with both cat and no-cat downpipes, the one w/o a cat gained 2 horsepower. That's what I was basing my statement on. Also, based on that, i decided that 2 hp wasn't worth possibly getting a ticket, and got a catted pipe.

I don't know what the results would be on an NA car.

kc2005ptgt · Post by **kc2005ptgt** » Sun Jan 06, 2008 10:30 am

Wellllllll... I will say that when I removed the cat and put in a LTH I gained ~8.5 hp - now, I do not think that I gained most of that from the cat removal, but yeah there are gains to be seen.

You will throw a code unless you run some sort of aftermarket ECU like Megasquirt, OR others like myself have run the sparkplug non-fouler mod which is hit or miss... which mine is running without a code

INVUJerry · Post by **INVUJerry** » Sun Jan 06, 2008 7:16 pm

http://www.importtuner.com/features/061 ... ndex1.html

Bolt-on civic. Gained 3whp with a ceramic hi-flow cat, 4 with a metal high flow cat, and 5 with no cat. Your move.

rud3boi · Post by **rud3boi** » Sun Jan 06, 2008 9:33 pm

emissions isnt a problem cuz i can get it pass and i dont mind welding in a cat leter i just dont wnana break some thing its been dissapointing journey and today man its been the worst bday ever

2001Neon_LX · Post by **2001Neon_LX** » Mon Jan 07, 2008 2:07 am

Ahhhh I love having no e-tests to worry about.

titansxt · Post by **titansxt** » Mon Jan 07, 2008 2:49 am

Wenuden wrote:all a cat does is burn any excess fuel in your exhaust gasses.

Its not called a catalytic converter for nothing..... It actually reduces the amount of emissions a vehicle puts out.

rud3boi · Post by **rud3boi** » Mon Jan 07, 2008 9:25 am

AH MAN
this mechic fucked me over he did alot of sttuff wrong.

he switched my battery

he put my throttle body bellow backwords
puttmy throttle body upside down
for some odd reason there is slack on my accelerater line so i have alot of bogging and stuff

my air bag seat belt light and air bag light is on my horn stop working after i got my car back from him. he blamini it on me cuz i had wires exposed but they had nothing to do with that cuz some of them werent even connected cause i was tring to get the tech wire before i relized i need the adapter
wat yall think?

rud3boi · Post by **rud3boi** » Mon Jan 07, 2008 6:39 pm

so i put everything back like it should be i cheack all my fuses everything works right
but the car still bogs like when i give it full throttle it bogs ? help me please