What Chassis do I have

AllegroD wrote:

chuckftboy wrote:
Tony, there is really nothing special about an OEM converter, Ford doesn't build them anyway, they are provided by one of their vendors. I think the major concern is one sized large enough for your 8-cylinder engine and fits in the space of the original.

I don't follow. What has a converter to do with the engine and what does the engine have to do with a converter?

It's about capacity. You couldn't put a 4 cyclinder miata cat on a Ford v8. It has to be sized appropriately for the volume and velocity of the exhaust. Not to mention the pipe sizing would be very different. Without sufficient exhaust flow, you restrict the engine, cause back pressure and can cause severe damage if it ran at all. Suck, bam, blow. Intake, combustion and exhaust must all work in unison. Imagine trying to hook a garden hose to a fire hydrant.