7's and catalytic converters
Discussion
Hi all, can someone give me a definitive answer as to when a 7 is required to have a cat fitted? Possibly interested in a 1996 k series which was a 1.4 and is now a 1.8 Also trying to find out if it was originally factory or kit built.
A lightweight k series without a cat appeals to me.
Thanks
Mike
A lightweight k series without a cat appeals to me.
Thanks
Mike
For the car you're looking at ... it will have needed a cat if "factory built" but not if "amateur build". This can be found by looking at the chassis number.
The requirement for a cat on all cars was introduced in 1998, but this is to enable them to be registered - whether it has one now is down to it's ability to pass the emissions tests at MOT time which can depend upon a number of factors, including the ECU fitted and setup.
As an aside, a converted 1400/1800K is an excellent way of getting into a "modern technology" Caterham at a cut-down price and can be a good basis for further upgrades ... the ideal to be to go to the next step and fit a throttle bodies and a programmable ECU and have it mapped properly, making it pretty close spec-wise to an R300.
The requirement for a cat on all cars was introduced in 1998, but this is to enable them to be registered - whether it has one now is down to it's ability to pass the emissions tests at MOT time which can depend upon a number of factors, including the ECU fitted and setup.
As an aside, a converted 1400/1800K is an excellent way of getting into a "modern technology" Caterham at a cut-down price and can be a good basis for further upgrades ... the ideal to be to go to the next step and fit a throttle bodies and a programmable ECU and have it mapped properly, making it pretty close spec-wise to an R300.
It often depends on how your MOT tester understands the rules but the definitive answer is here
All post-SVA cars will need a catalyst to pass the required emissions test unless the engine was proven to be earlier and therefore only needed to meet lower emissions standards. The catalyst is not specified but the limits for testing mean that it is very, very unlikely to pass without one. The limits should be on the registration document.
All pre-SVA factory built cars need to pass the emissions test applicable for the engine they were fitted with. The post 1992 test would normally require a catalyst in order to pass. In practice this means most K series cars would need a catalyst to pass. Crossflow and Vauxhall engined cars (carburettored) wouldn't. I am not sure for VX injection cars.
All pre-SVA kit built cars need to pass a visible smoke test only.
All post-SVA cars will need a catalyst to pass the required emissions test unless the engine was proven to be earlier and therefore only needed to meet lower emissions standards. The catalyst is not specified but the limits for testing mean that it is very, very unlikely to pass without one. The limits should be on the registration document.
All pre-SVA factory built cars need to pass the emissions test applicable for the engine they were fitted with. The post 1992 test would normally require a catalyst in order to pass. In practice this means most K series cars would need a catalyst to pass. Crossflow and Vauxhall engined cars (carburettored) wouldn't. I am not sure for VX injection cars.
All pre-SVA kit built cars need to pass a visible smoke test only.
Hi Ian! Yep, possibly looking to get back into a 7 and the lure of Arnie baiting at Croix is a powerful one at the moment.
Thinking of going down the finessed lightweight and good handling route rather than sheer brute JPE force route this time.....
Thanks for all the advice so far all.
Thinking of going down the finessed lightweight and good handling route rather than sheer brute JPE force route this time.....
Thanks for all the advice so far all.
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