NO2 Melting Cats
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
Mmm, a dry shot of nitrous would tend to lean things out. Nitrous adds air to the system not fuel, think chemical supercharger. But I'd go with a wet shot, nitrous jets matched by extra fuel jets. So it shouldn't be lean.
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Originally Posted by Beater
Most kits I've seen have a fuel line run with them. You can't burn the air with out the fuel.
Burning Brakes
Joined: Feb 2005
Posts: 1,235
Likes: 0
From: Mesa AZ
Originally Posted by Beater
it is my understanding that runing lean melts cats. Nitrous does the opposite. Not that it is any good for them.
the nitrous alone will make it run lean, that is why you need more fuel to go with it.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Exhaust gas temps rise quite a bit with N2O and it wouldn't surprise me to see shorter convertor life when using it. If the system is set rich as it should be that will lower convertor life too.
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if your looking for better performance then cats aint helping at all
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
2500$ fine in CA if you fail a roadside visual. There's no way I'd smog my car as it is, and my cats aren't even legal because I have two 3" cats instead of just the one 2.5" cat. But they look good to cops. 
I'll eat the 10hp for some insurance.
...I think Norval even runs cats for the same reason.
I'll eat the 10hp for some insurance. ...I think Norval even runs cats for the same reason.
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
Originally Posted by 694speed350
Torque vette take them off and gut them they are still there but without the insides.
.
Click here to see Video
Last edited by enkeivette; Mar 9, 2006 at 12:14 AM.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by torqvette
2500$ fine in CA if you fail a roadside visual. There's no way I'd smog my car as it is, and my cats aren't even legal because I have two 3" cats instead of just the one 2.5" cat. But they look good to cops. I'll eat the 10hp for some insurance.
...I think Norval even runs cats for the same reason.
I'll eat the 10hp for some insurance. ...I think Norval even runs cats for the same reason.
There is not problem running cats and nitrous. Exhuast temperature while under juice do not climb higher.
Nitrous itself has a cooling effect on the intake charge and the burnt gas is no hotter. Think of the short duration you are actually on the juice?? Compare it to a steady run down the highway?
No problem for the cats.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by 694speed350
Torque vette take them off and gut them they are still there but without the insides.
I try at least.
