Go catless with boost

[Dominant1]

the only way to be sure is to go catless....i can afford an off-road x-pipe i cant afford a new engine...

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[EgoBoost]

Sorry bud. Your unfortunate break will help others here. Kudos to the shop for helping you.

 

[dev1360]

OE Strategies will drop to .7 lambda and RICHER in an attempt to keep the cats alive. The "NA" strategy for a Mustang does this as well. It is available for tuners to use.

I tuned a VMP car on approximately 10lbs of boost with factory cats. I did not leave COT on, but I ran the car at 17* total timing in OP and .76 to keep the cats cooler. It has had no issues for over 6 months until he recently elected to have them removed.

Factory cats also have a much higher build quality. But you cannot deny the heat generated by forced induction setups. It is detrimental to the life of the ceramic/platinum honeycomb.

 

[markmurfie]

Mine were on my car for 7500+ miles with boost 50k+ total. Glad I ditched them when I did.

 

[stang17]

For those playing at home....
What is the likelihood of AFTERMARKET cats failing on long tube headers, on a car pushing say 10psi of boost, 93 fuel and tuned by say Lund/PBD/AED etc?
We all know that they restrict power at some point, but realistically, how high is the failure rate for the more common setups?

Stock whipple tune, 3.625 pulley, 93 octane....kooks high flow cats started failing after a few hundred miles ( sulfur smell after WOT pulls). I spoke with Kooks directly and was advised their standard high flow cats are NOT intended for forced induction applications. I gutted them and car runs way better.

 

[robmustang201528]

I'm glad you got a warning I didn't. I just hope piston 8 is my only problem

 

[robmustang201528]

Gonna put a stock pistion and rings in there and call it a day

 

[WhiteyDog]

So it sounds like the general consensus is:
If you're over 700rwhp running 12lbs or higher and have cats, it's more sooner than later that they're gonna go, so get rid of 'em.

If you're under 700rwhp running under 12lbs you could be safe for longer or have no issues at all, but get rid of 'em.

And like Dominant1 said, an off road X pipe is an easy purchase, an engine, . . .not so much. Looks like I may have work to do. SH*T.

 

[Dominant1]

Question guys when get my off-road x can i just bolt it on plug in the 02 sensors and go or do i need a tune revision?

 

[SolarFlare]

No tune needed when I removed my cats.

 

[Shane361]

So it sounds like the general consensus is:
If you're over 700rwhp running 12lbs or higher and have cats, it's more sooner than later that they're gonna go, so get rid of 'em.

If you're under 700rwhp running under 12lbs you could be safe for longer or have no issues at all, but get rid of 'em.

And like Dominant1 said, an off road X pipe is an easy purchase, an engine, . . .not so much. Looks like I may have work to do. SH*T.

You're trying to play with the risk matrix a bit much. If you're boosted get rid of them.

 

[Dominant1]

No tune needed when I removed my cats.

Did you get a cell...

 

[kcc0521]

I wish I would've thought about that earlier. I gutted cats and threw whatever was left inside the cats away smh.

How hard was it to gut them? How did you go about doing it?

 

[Tommy V]

Did you get a cell...

If your tuner has your rear o2's off already u will be fine,if not u will get a cel light but the car will still run ok.Ask your tuner if they are turned off already,if not its a easy revision and no data logs should be needed.

 

[Dominant1]

Ok thanks...

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