Drilled a hole in the muffler,I do it on all cars to let the water out,they say it can lay at the bottom of the cataletic converter and freez during the winter,crack the honeycomb cat and then you need a cat.well,15k miles now i drilled the holes and what did i find,a whole lot of water running out,enough that it was still running out when i got back with my camera !.
Weather it makes a difference or not i dont want the water laying in the system. (rivers side of the car)....there was a puddle on the ground and the ground is rocks ! ...ALOT of water !.....give it a try.

 

Oops, wrong thread.

I meant to ask you, if you're worried about water pooling in your cat, why aren't you drilling a hole in your cat?

 

Cant hurt to get it out of the muffler and i dont want to touch the cat LOL

 

interesting

 

didnt know that..
i thought people drilled holes in the muffler to make it like rice loud?

 

Not me this is my daily driver.... I have a vette for that LOL

 

so.. you drilled your vette's muffler too?

 

better put some jb weld on that hole now.

 

The cats run too hot for water to build up inside, additionally, the vertical nature of the primary cat doesn't allow water to collect in it. The secondary is still very close to the motor and any airborne moisture that might make it's way that far up the exhaust would be expelled from the heat and pushed out into the cold, restrictive, and apparently collective stock muffler. The OEM muffler is the heaviest and most over engineered part of this car lol.

 

LOL No not yet,but i will.
I dont know if the cats have water in them or how it all works...but all the cars i have ownd have water in the muffler at the lowest point from the cat.never fails.

Heres the vette,---> http://s262.photobucket.com/albums/i...-rc/ZO6%20NEW/

 

Most of that water in the mufflers is just sitting in the insulation out of the flow of the exhaust. It's not really hurting anything except maybe over quite a few years of exposure to the elements it'll rust out and sound the same as a hole drilled in it Nice vette though.

 

Yea,i dont think its a big deal but ,it lets out the water

I see your in florida,wish i was there.

 

That's sexy. have you tried just running it on the headers. A friend of mine was putting a aftermarket true dual exhaust on. We were curious to see how loud it was.... never again. No joke the idle was as loud as my car at redline WOT. The vette under WOT was just ridiculous. My ears hurt afterwards.

 

No,I'm not removing the exhaust. Lol. Maybe drill a hole in it. Lol

 

If drilling holes in your exhaust was good for the muffler/car, it would come with holes in it already.

 

There were cars that had that hole years ago,that's where the idea started.but with the laws for emissions now you must have a "sealed system".it can't be any good to have a cup of water floating around in the muffler ,that is about how much came out.

 

If it can't be good, how do you know it is bad?

 

i have to say...that is the worst idea i have ever heard...make that heard in a while...how does water get in your exhaust?the only water in your exhaust would just be condensation from sitting out over night. it wouldn't be that much, then, as soon as you fire up the car and start driving it around, the hot exhaust gases will heat the exhaust up to above boiling temperatures and send all the water out as steam.

now, lets just say, hypothetically that water does enter the exhaust system overnight, and can freeze the cat and make it fail or whatever, the problem is that your exhaust system is pretty flat and level, nearly parallel to the ground, so the water isn't going to drain out unless you park on a slope so that the gravity drains the water down. but wait, if that were the case anyway, then all the water would just drain back and settle in the muffler anyway, and not in the cat, and thus just be waiting to get expelled when the exhaust gas heats it up anyway.

i'm sorry, but as far as the realm of useless car mods goes, this one is pretty useless, relatively harmless, but useless. also, the reason why you don't have holes in your exhaust system is so that you don't have exhaust gases entering the passenger cabin and inebriating the drivers.

so please, reconsider this, and then plug those holes up with some mighty putty or something.

 

..... Re-read post #1 it says. The reason.

 

Tell me who "they" are that say this can happen and I'll almost consider that a reason. You're purely speculating and have zero proof of this happening (that I've seen yet). I'd suggest reading Drax's post above.