
The main areas for engine balancing.
"A balanced article."
We all know what happens when a wheel is fitted to a car without being balanced.
At low speeds you do not notice it but at higher speeds noticeable vibrations start to appear.
Inside an engine the rotational speeds typically reach 6-7000 rpm and, the higher the speed, the more critical it is to ensure that vibrations do not occur.… Read More...
Choosing cam profile for fast road and track.
Camshafts durations and profiles.
"Cam(alot) of power!"
Cam profiles and cam durations.
The cam shaft controls the inlet and outlet ports. A pear shaped lobe on the shaft keeps the valve closed until the pointy bit rotates producing lift and opening the valve. Double overhead cams have separate profiles for inlet and outlet ports and are more tunable than single overhead cams.… Read More...

Our members frequently talk about their latest mods and power figures. Many of our members have remapped their diesel engines and boast of more power, better economy and unchanged reliability.
But do the claims live up to reality? What sort of power figures can you get from a diesel remap? Diesels have really come so far in a very short time. Read More...
Remapping the ECU – remaps benefits and issues
Back in the good old days – the task of timing the ignition spark was performed by the distributor. The greater the RPM, the more the timing would advance.
This did a reasonable job but for the most effective power you would need to vary the timing to a greater degree than a fixed ratio advance curve. The electronic ignition system was borne. Read More...