MOT pass without cats?
Guest
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Hi,
There have been a couple of posts recently about passing MOTs without cats - either here or on IWOC. Those who had emmsions tests without cats reckoned that they were not too far off passing.
Saw this in last weeks MCN (http://www.motorcycleworld.co.uk/NEWS/NEWS.asp?page=Earlier+News&passeddate=01/12/99)
- it's a gadget that modifies the spark so you get cleaner running and more power (less misfires). Do you reckon a Scoob could get through the MOT without a cat with this? The graphs in the paper (admittedly for a bike) showed both CO2 and CO cut quite a bit.
Dave
There have been a couple of posts recently about passing MOTs without cats - either here or on IWOC. Those who had emmsions tests without cats reckoned that they were not too far off passing.
Saw this in last weeks MCN (http://www.motorcycleworld.co.uk/NEWS/NEWS.asp?page=Earlier+News&passeddate=01/12/99)
- it's a gadget that modifies the spark so you get cleaner running and more power (less misfires). Do you reckon a Scoob could get through the MOT without a cat with this? The graphs in the paper (admittedly for a bike) showed both CO2 and CO cut quite a bit.
Dave
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If its the thingy I have seen, it works by intercepting the fed to the plug, and sends as a faster spike. This should generate a more powerful spark. I think they are really designed for distributor based cars that have more of a curve than a spike fed to the plug. Same reason as fitting coils instead of distributor.
robski
robski
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Sorry Robski - you're thinking of older systems there. They don't create a *fatter* spark - here's the online version of the article - last weeks MCN has the whole thing. Independant testing coming up....
Dave
Sparks cut emissions and raise power
By MCN Reporter
BRITISH firm GB60 International's new spark improver device is small, cheap and,
as well as cutting emissions, also raises power.
This British invention could save us all from the prospect of a new generation of heavier, more expensive and power-sapped superbikes.
Early next century, European rules are almost certain to dictate that all new bikes meet tough new emissions limits and it was thought that meant they would have to be fitted with cumbersome catalytic converters - until now.
A firm called GB60 International has come up
with a device which is claimed will do all the pollution-cleaning a catalytic converter can do - without any of the downsides.
Three-way catalytic converters are expensive, heavy and restrict power. Using them could cause serious problems for bike firms and bikers alike.
Initial tests have been so impressive that they've gained the attention of leading
bike firms - and car makers, too. Called the GBsixT, the unit is fitted into the bike's ignition system, and works to make the engine burn its fuel more efficiently. Although it was designed purely to cut emissions, the firm has discovered there's a bonus from the improved engine efficiency - more power and better fuel economy.
While most ignition gizmos aim to simply increase the size and power of the spark, the GBsixT works by altering the way the spark behaves when it ignites the fuel - and that's the breakthrough. It weighs only 70 grammes and doesn't create any of the heat or bulk problems of a cat.
Inventor Jonathan Receden-Dibble has spent 12 years perfecting it in his role as
company boss at GB60 International. He said: "In the past, people have tended to look at the exhaust coming out of the engine and tried to reduce the emissions at this stage. The result is the catalytic converter, which effectively re-burns the exhaust gases to reduce emissions.
"We have taken a different route, making sure the fuel burns better inside the
combustion chamber - stopping emissions at their root."
GB60 International has supplied us with figures showing the effect of fitting the
devices to over a dozen different bikes and all look impressive. MCN will conduct
independent tests early in the New Year.
Dave
Sparks cut emissions and raise power
By MCN Reporter
BRITISH firm GB60 International's new spark improver device is small, cheap and,
as well as cutting emissions, also raises power.
This British invention could save us all from the prospect of a new generation of heavier, more expensive and power-sapped superbikes.
Early next century, European rules are almost certain to dictate that all new bikes meet tough new emissions limits and it was thought that meant they would have to be fitted with cumbersome catalytic converters - until now.
A firm called GB60 International has come up
with a device which is claimed will do all the pollution-cleaning a catalytic converter can do - without any of the downsides.
Three-way catalytic converters are expensive, heavy and restrict power. Using them could cause serious problems for bike firms and bikers alike.
Initial tests have been so impressive that they've gained the attention of leading
bike firms - and car makers, too. Called the GBsixT, the unit is fitted into the bike's ignition system, and works to make the engine burn its fuel more efficiently. Although it was designed purely to cut emissions, the firm has discovered there's a bonus from the improved engine efficiency - more power and better fuel economy.
While most ignition gizmos aim to simply increase the size and power of the spark, the GBsixT works by altering the way the spark behaves when it ignites the fuel - and that's the breakthrough. It weighs only 70 grammes and doesn't create any of the heat or bulk problems of a cat.
Inventor Jonathan Receden-Dibble has spent 12 years perfecting it in his role as
company boss at GB60 International. He said: "In the past, people have tended to look at the exhaust coming out of the engine and tried to reduce the emissions at this stage. The result is the catalytic converter, which effectively re-burns the exhaust gases to reduce emissions.
"We have taken a different route, making sure the fuel burns better inside the
combustion chamber - stopping emissions at their root."
GB60 International has supplied us with figures showing the effect of fitting the
devices to over a dozen different bikes and all look impressive. MCN will conduct
independent tests early in the New Year.
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