Finally made my mind up on engine, emissions?

[leroybrown911]

Morning all,

You may remember I was intending on using an R1 engine for my build. After some thought about reverse box, LSD, dry sump etc. I have decided against it due to costs. I gotta be realistic, a roadster on the road is better than an unfinished one due to finances.

Anyway I have decided to try and track down a pre Aug 1995 2.0 silvertop zetec and run it on a bike carb and ecu set up from Chester sports cars (only a few miles away).

My query is that from what I have read on tinternet is that a pre 1995 zetec does not need a cat, and is easy to get through emissions.
However when reading the IVA manual (section 02B) it states that if the engine previously had a cat to test it as such. I believe 2.0 silvertops were fitted with a cat, or is it because they dont have the data in the analyser database/emissions book?
So, do I need a cat on my roadster if I fit the 2.0 zetec?

Another question. This might be a bit dodgy...
If I change the logbook for my donor to say the 2.0 zetec was fitted to the sierra, would they test it as a Sierra 1992 Sierra? Because the log book would show the zetec engine number?

mmm...........interesting