Quote:
Originally Posted by JANNETTYRACING
I would Love to hear Your Whole take on the Rich VS Lean affect on Cats.
There seems to be some debate on How AFR Affects Cat Temps.
Everything I know about AFR VS EGT is Leaner is Hotter and Richer is Cooler.
Factory Programs Dump fuel in the Converters to Cool Them.
Ted.
|
Our global sales manager talked with me about the effect of fuel on cats, but I can't quote him verbatim. He actually used to design the cats for GM for a number of years, i forget how many. I will forward him your questions and get an in depth answer. The temperature of the catalyst is a pretty big factor in aftermarket cats, most aftermarket metallic cats are rated up to 1,200 degrees fahrenheit, that is extremely hot. When raw fuel gets dumped into them it burns off the coating and makes the cat substantially weaker.