Ralph Bossino

Here are all the images of the parts that have just come through. The car is currently at the painters so we will have to wait for it to come back before getting the parts installed. I have added some basic comments as to the function of some of the parts for those who don’t have a detailed understanding about specific car parts, so you can understand the improvements being done to the s2000.

Endless 6 POT Mini BBK

Having larger brakes doesn’t necessarily result in shorter stopping distances. In fact in the case of the s2000 it will be round about the same as the s2000 comes with very good brakes out of the factory. The main reason for having BBKs installed is that they reduce brake fade. Brake fade is the reduction in stopping power that occurs after repeated application of the brakes. It is caused by the build up of heat in the brake components. This occurs most often in high performance driving, and is a must for track use, Big brake kits enable the car to absorb and dissipate more heat through the larger rotors thus enabling you to brake harder for longer.

Precision Turbo:

Combustion is caused as a result of the mixture between fuel and air, in the ratio of 14.7 to 1. In order to get more power out of the engine you can either increase the displacement of the engine (the amount of air that can fit in the cylinder) or compress the air in order to fit more air molecules into the same given space.

A turbocharger is comprised of 2 parts, the ‘hot side’ and the ‘cold side.’ The hot side is bolted onto the exhaust manifold. The exhaust gases pass throuhe turbine blades causing the turbine to spin . The turbine, connected to the compressor (Cold side) via a shaft, spins the compressor, which pressurises the air. When air is compressed it heats up, and when it heats up air expands. As I said above in order to increase power more air molecules must be forced into the cylinder, thus an intercooler is used to cool the air before it gets to the engine, resulting in cooler, denser air with more molecules being fed into the cylinder. As a result more fuel can be introduced and thus more power will result.

The ‘lag’ felt with a turbocharger is caused as a result of requiring the exhaust gases to spin the turbine, as initially when you step on the gas not enough gases are being produced. A rule of thumb is the bigger the turbo the more lag will be experienced, however there are many other factors that can come into play to reduce the lag with bigger turbos.

Tial Wastegate:

A wastegate is in essence a valve that allows the exhaust gases to bypass the turbo, preventing it spinning too quickly at higher engine speeds. This is an issue with smaller turbos, as they spool quicker and as a result will achieve higher rmp at higher engine speeds. A wastegate sences the boost pressure and if it gets too high it allows the gases to escape, allowing the turbine to slow down.

Tial Blowoff valves’ (BOV) primary function is to prevent compressor surge by relieving the compress airflow that changes direction once the throttle closes (the pwissh sound). They either re-route the air into the intake system or allow it to escape into the atmosphere. This in turn increases performance as the compressor speed will not be reduced by the backward airflow, which would have increased the spool time. BOV both increase performance and give your turbo a longer lifespan.

Precision 1200cc Injectors:

An injector is in essence an electronically controlled valve, releasing petrol into the cylinder. It is supplied with pressurised gas by the fuel pump and via the use of an electromagnet, squirts the gas out of a small nozzle. The aim of this is to atomize the fuel, turning it into a fine mist, allowing it to burn more easily in the cylinder. The higher cubic capacity enables it to introduce more fuel into the cylinder, required in this case as more air molecules will be in the cylinder.

AEM EMS:

The AEM engine management system controls various aspects of the engine. It allows for the system to be specifically tuned by a professional in order for the fuel, timing etc to be exactly correct at the level of boost being run, to ensure the car runs neither lean (over 14.7 to 1) or rich (less than 14.7 to 1). The key to the reiability of the turbocharged setup it all in the tune