What are the MOT emissions for a Westfield/kit car?

[Euan Hoosearmy]

What year is your car registered? Which engine do you have, does it have a Cat? Are you on carbs or FI?

 

Q plate is easy as it's visible smoke. Pretty much everything apart from Q plate has some kind of emissions standard to get through. Even our capri (pinto on carb) failed it's MOT on emissions last year... 

 

The fun bit is working out which standard should apply to your car. Once you have that clarified, then you can argue, or give up and get a re-test at someone who knows what they're doing.....

 

 

[Sam Harland]

Hi Euan

 

It was registered in 1999 it has an C20XE on carbs modified at SBD motorsport. 
All the previous emission tests done say it’s for a non cat car and the parameters seem to be lower. Todays test they did it on a cat car emissions parameters. They tried to tell me it could be an Ecu issue or fueling or stale fuel. The car has never failed on emissions in its whole history and it’s only done 1000 miles since it last passed! 
I guess I just want to understand how it should be tested so I can go back to them with the correct info. 
cheers 

[jaykay42]

Hi!

I have a C20XE on (bike) carbs. 

My garage (classic specialist) does the same he did for my MGB GT:

dial the carbs down on power, optimised for emissions but running quite poorly, do the emissions test, dial the carbs in again afterwards. Sssshhh!