Engine swap questions ....

I didn't think it ever was

erm, yes?



the mot test requirement is based around the car, its age & what was fitted @ manufacture...

something like (UK) vehicles built post '91 need a cat, a Japaneese import has the requirement relaxed a few years ('94??) as they weren't fitted untill then for jdm vehicles - or something like that

if a car is made / registered after the relavant date it should have a cat fitted to pass the test...

^^OR have an empty cat body OR cat shaped dummy-cat over the pipe as an imitation


there is an exception to this....

if the car is obviously heavily modified - as a stage rallycar for example. this relaxes the airbag necessity also


Rich.

I agree with the chaps above but I thought it might be '95 that you can get away with no Cat on an import.

They should choose the emissions standards to test to from the chassis number. The JDM chassis numbers are different to the UK chassis numbers, so they shouldn't be able to find an import on the system - therefore pre-cat test only. (I think there's a thread on emissions standards somewhere on here, I'll have to try and find it.)


I wasn't aware that one could get a test in accordance with the engine rather than the chassis - I'm pretty sure that would only work one way, in that they'd only test to a more modern standard rather than letting one put a 5.7 litre V8 with no cats into a Prius... (In fact, now I write that, I am sure I have seen regulations that says no car can have worse emissions than it came out of the factory with, hence no-one can convert an EV to ICE.)