Performance DIY by DIY Guru

What is an Engine Oil Cooler ? An Engine Oil Cooler is basically a heat-exchanging device much like a radiator but its function is to maintain the engines temperature through removing excess heat from the Engine Oil.  You might have seen some customized cars at your local meets with a small intercooler or radiator like contraption with two pipes leading into the engine bay. Engine Oil Coolers do offer some benefits when it comes to high performance | high revving engines, but does everyone need it ? Now that's a whole different debate. So to simplify things we have weighed out the pros and cons of engine oil coolers in the paragraph below   so you can decide for yourself if you need one or not. Engine Oil Cooler Pro's and Con's | Engine Oil Cooler Benefits When it comes to engines it is commonly perceived that the cooler the better, but that is not entirely true apart from some exceptions. Before going on an engine oil cooler hunt, the first thing you will need to u...

What is Wide Band Tuning? Wideband Tuning is basically the practice of manipulating a car's Air/Fuel Ratios to get the most power out of it. This is achieved by using a wideband oxygen sensor which measures your Air/Fuel Ratio from about 10:1 up to about 20:1 AFR. This means that a wideband o2 sensor allows you to specifically target your AFR.. A narrowband o2 sensor on the other hand can only measure upto 14.7:1, Why use a Wide Band O2 Sensor ?  The reason why tuners prefer wide band tuning is because of a few shortcomings of the stock narrow band sensor. Full throttle tuning only manages to tune about 1/5th -1/6th of the available map area. Part throttle where drivers spend most of thier driving time and it also happens to be the most common area for complaints. (e.g poor fuel economy, roughness, stumbling).Not many dynos are capable of holding a constant load for part throttle tuning. Dynos also have a some flaws such as inaccurate representation real world conditions li...

Engine Port Matching Principles and Basics Engine port matching helps make performance gains by making the airflow more streamlined. It is usually performed because the inlet and outlet ports on the engine block are usually larger than those of the manifolds that connect to them. This allows for scope in the manufacturing process to allow for mismatched alignment. Generally the engine ports are larger in the upstream flow direction avoiding turbulence but power gains can be made by matching these up. Most internal surfaces are far from smooth due to the casting process so small gains are there to be had by smoothing out the rough edges although polishing the insides offers little if any extra gain. Engines need to breathe as freely as possible and obstructions, seams and pits cause turbulence and this is not very good for airflow. Generally speaking most standard non performance cars will benefit greatly from even a little DIY head porting. A high performance engine ...