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Joined: May 2000
Posts: 3,143
Hard-core CEG'er
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OP
Hard-core CEG'er
Joined: May 2000
Posts: 3,143 |
With ~124k miles on my '96 my main cat is shot (according to my CEL) This puts me into a bit of a dillema. I got a dual exaust from a SVT I am waiting to put on, but I don't know if it's worth it with the cat in it's current status. I can't get my local shop to touch the cat (no suprise there) and I don't have access to a welder. I was thinking about getting a sho-shop catless y-pipe but that seems like a bit of wasted money when I could just chop mine off and hacksaw some straight pipe in it's place. Plus I heard the SHO-shop pipe has some heat issues.
I was wondering those without the main cat, how did you get that way?
-Pete
"Bros before Hoes" <-- More men need this mentality.
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Joined: Jul 2002
Posts: 158
CEG\'er
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CEG\'er
Joined: Jul 2002
Posts: 158 |
My car hs no cats at all due to the sho-shop Y pipe and MSDS headers. I would suggest going to a muffler shop that you trust really well and tell them that you want a pipe made that will directly bolt into the piece where the cat is and tell them that it is for when you go to the track, because as far as I know they can do that for you as long as they are not the ones that are removing it. I was going to go with that method but the I decided to go with the Sho pipe.I haven't had any trouble with the Y pipe. Is there something that I need to worry about? I haven't heard of any issues. 
98 SVT
18" Enkei RS6's, NITTO 555 Extremes
Intrax lowering springs
K&N filter
Sho-Shop Y pipe (without cats)
Stock "gutted" manifolds
Carbon Fiber Cowl hood
Carbon fiber sail panels
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Joined: May 2000
Posts: 1,020
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: May 2000
Posts: 1,020 |
I took it of myself with a hacksaw. clamped a peice in there temporarily, and took it to a shop to get welded up. I was ready with an excuse if he asked where my maincat was. I was going to tell him the cats are built into the exhasut manifolds (point to the precats) and the wasn't another cat. He never asked though. It wasn't a stock cat that I took out, it was the sho-shop one. Not sure if you can cut the stock one out and clamp a pipe in there. Never done it  Good Luck!
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Joined: Dec 2000
Posts: 12
New CEG\'er
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New CEG\'er
Joined: Dec 2000
Posts: 12 |
Why all the hassle most speed shops here in the UK sell cat replacment pipes off the shelf ready to bolt on for around £80 That is what mine cost.
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Joined: Mar 2002
Posts: 1,325
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Mar 2002
Posts: 1,325 |
O2's only check the health of the pre-cats - and gutting them wont make the cel go away.
--edit--
Sorry I always think V6, zetec O2 will check main cat, but again gutting it will not turn off the cel
Last edited by ScottK; 01/18/03 06:20 PM.
97 Contour SE MTX
K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust
04 Grand Caravan SXT
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Joined: May 2000
Posts: 3,143
Hard-core CEG'er
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OP
Hard-core CEG'er
Joined: May 2000
Posts: 3,143 |
Originally posted by ScottK:
O2's only check the health of the pre-cats - and gutting them wont make the cel go away.
--edit--
Sorry I always think V6, zetec O2 will check main cat, but again gutting it will not turn off the cel
I know it won't turn off the CEL but I figure if I have to look at the CEL I should at least get the extra 2-3hp from not having the cat at all.
-Pete
"Bros before Hoes" <-- More men need this mentality.
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Joined: May 2000
Posts: 1,825
Cool Toe Chris
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Cool Toe Chris
Joined: May 2000
Posts: 1,825 |
Originally posted by Pete D:
Originally posted by ScottK:
O2's only check the health of the pre-cats - and gutting them wont make the cel go away.
--edit--
Sorry I always think V6, zetec O2 will check main cat, but again gutting it will not turn off the cel
I know it won't turn off the CEL but I figure if I have to look at the CEL I should at least get the extra 2-3hp from not having the cat at all.
-Pete
You are losing power with the CEL on. I have the dynos to prove it as well. IIRC, I lost 13hp and 8lb/ft torque. Also, how do the O2 sensor check the secondary (underboy) CAT? My O2s aren't after it, but before it. They primarily measure after the main (exhaust manifolds) cats. I too have gutted my secondary CAT as it was so clogged, the car would start to stall. Once gutted, the car was able to exhale again and some power was freed up. I know that I am making all of the power I could as the shell of the CAT is causing unwanted turbulence with the exhaust.
Chris
NJ
98.5 SVT Silver Frost
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Joined: May 2000
Posts: 3,143
Hard-core CEG'er
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OP
Hard-core CEG'er
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from what several mechanics have told me, there is a CEL for "main cat inefeciancy" (sp)
"Bros before Hoes" <-- More men need this mentality.
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Joined: May 2000
Posts: 1,359
Webmaster
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Webmaster
Joined: May 2000
Posts: 1,359 |
No such thing... there is no O2 sensor behind the main cat to measure it's efficiency.
-Lance
Lance Kinley
CEG Webmaster
95 SE, "Cassandra"
10 years!
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Joined: Jul 2000
Posts: 1,977
Hard-core CEG'er
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Hard-core CEG'er
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My car is catless, I don't like cat. There is no kitten or the big fat cat, absolutely no cat.
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