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Engine Swap Emissions

cabrioman 19 Apr 2009, 7:36pm
Anyone able to confirm the rules regards emissions if the engine has been swapped.

I have just added to my Marlin collection with the purchase of a LWB Hunter which has a dead auto transmission, which was retro fitted by marlin when the car was 2 years old. The engine is a DOHC 8v Scorpio engine (115 PS)which is not ideal, as it needs to come out to sort the box by converting it back to its original manual configuration I am considering changing to a different engine at the same time. Lead contender would be a BMW M20 engine and manual box.

The car was built by Marlin in 97, if I fit an M20 engine from say an 88 year BMW, at MOT what emissions does it have to hit 97 year emmission requirments with a cat or 88 emisssions as per the original BMW.

Any one know the rules on this.

Cheers

John
Patrick 19 Apr 2009, 7:53pm
If the engine is older than the chassis then its based on the age of the engine, not the chassis.

If the chassis is older than the engine its based on the chassis.

You'll probably need some proof of age for the engine, with BMW try here: [email]Customer.Information@bmwfin.com[/email] - you'll need the engine number and probably also the BMW chassis number.