BMW Z3 Catalytic Converter fouling up...

[PeterJ]

This is my Magnaflow cat that is about one year old on my 1998 Z3 with M52B28 with extensive modifications to air intake, Schrick cams & custom ECU remap. I always drive gently until the oil temperature is up to normal so by that time the Cat shoud be well up ... I live in Hong Kong, so no long high speed highway driving ... shortish journeys of 30 mins are the norm ... too rich or to be expected? Any comments appreciated . Thanks

ks

 

[zedonist]

to be expected, i'd be more concerned with the rust, obviously the welder did not clean and passivate his welds, assuming they are stainless.......

Longer runs should help keep it healthier though

 

[PeterJ]

Thanks. Not much chance of longer runs out here !

 

[GazHyde]

There is an interesting article in the wiki's about catalytic converters in general. You may have read it, but it's by Mike Fishwick and very informative

http://zroadster.org/wiki/general-maintenance/catalytic-converters/

 

[t-tony]

If there is no chance of longer/higher speed running Peter perhaps you should look towards fuel system additive to keep your cat in tip-top shape. Admittedly it may be artificial but the end result is the same - clean and effective cat. We use Forte products at work and they are very good. I don't know if they are available in HK?