I just came in and smell like pure Xhaust!..I mean Gag!..haha!
Has anyone just used a Catalytic with no pump on a "big setup"?.
I know when I take my Stage 3 BNR turbo off the FC and go to a T04 there is gonna be no room for an air pump,and I can't see running an Electric air pump constantly.
Ideas?.thanks.STYX!~

 

Yep get use to the smell, try to seal up the firewall

Hybrid

 

i smell like exhaust whenever i drive my FC. full RB exhaust from DP..no air pump...i heard it could be my door seals or hatch that's where the fumes are coming from

 

I can't stand the smell anymore. I know have an almost brand new cat converter to install on my 10th AE. Going back to stock. My 89 is going to be the stinky and only driven to the track!!

 

If you use a modern 3 way convertor you don't need an air pump at all. Problem is finding one that will hold up to the punishment you'll be putting it through. I ran a magnaflow convertor on my old GXL for a long time. It smelled worse though than the open exhaust. I've just gotten used to smelling like I've been out on a sled all day after I'm done driving my cars. Gotta love the smell of 2 stroke!

 

I've had an email exchange with Magnaflow regarding their metal 3 way cats (looking for a cat for my Cosmo) and they basically said that as long as ratios were near stoich, and the cat was mounted a little farther from the exhaust ports in a rotary application vs a piston application, no air pump is required nor recommended. The tune is the most important part. Running a cat rich will cause a massive rotten egg smell, and decrease the life of the cat. Magnaflow said the ceramic version should not used on a rotary.

Vibrant makes a similar metal cat and they say the same thing.

 

Thanks for responding Aaron.
So,it would be OK to run a metallic substrate cat then?( is that what they call them?).
...
Granted I am used to the smell but I find it annoying that I smell like fuel when I enter an establishment..(I would rather smell like cologne!)

 

eau de rotard

 

Lucky you put an "O" in that last word Chuck!...lol..
Chanel#7..(with a hint of 2 cycle)

 

As long as your tune isn't as crude as the stock ECU, then yes. You'll need to burn around stoich at cruise, closed loop will be needed, and boost can't be flat 10s (which I hope it isn't ).

The spun metallic cats are a bit more expensive but that's what you want. At least 3".

 

anyone who changed from a stock cat wanna sell their stock cat for $130??

 

Dave you try getting new boots for your shifter and trans tunnel? I've read that that is where the exhaust enters most of the time. Just a thought