The particulate filter is a stand alone unit. It is located upstream of the cat in the exhaust system and its purpose is to remove soot particles from the gas stream. The cat the proceeds to do its usual job of converting CO to CO2 and is in no way dependent or relied upon by the particulate filter.
In diesels the cats are two way devices and run in unregulated mode (ie. no O2 sensor like a petrol car).
Superchargers – A guide to supercharger kits benefits vs disadvantages
Superchargers offer the promise of substantial power gains with very few drawbacks. So lets look at the growing popularity of supercharger kits and see what its all about.
A supercharger is quite simply an air compressor which helps push more air into an engine. These are driven by a belt from the engine effectively creating pull on the engine sapping up to 30% of the engines power.
Benefits & advantages of Winter tyres & snow tyres
With the poor winter driving conditions hitting the UK in 2010 many drivers are looking at winter tyres. Other countries are prepared for the snow and poor weather and are used to the concept of winter tyres.
So what are winter tyres, what do they do and are they a good idea?
Suspension settings, lowering and stiffening
On the track your priority is fast cornering and suspension plays a large part in this. Track conditions are quite forgiving and you can make some compromises like using hard suspension and lowering the car for optimum aerodynamics and a low centre of gravity.
This works well because tracks are fairly flat and you do not have a carrier bag full of eggs in the car from your return trip to the supermarket.














