What is spark plug gap? It is the measurement between the ground electrode and the centre electrode that the ignition spark arcs between. You can have the most advanced ignition system around but if you do not have the gap between electrodes correct your ignition system will not function correctly. The gap between electrodes determines […]

How CDI systems work is thanks to capacitors. Capacitors are a form of batteries that can physically store energy.  This is useful to ignition systems as the energy can be discharged instantaneously unlike traditional ignition coils which require time to generate and collapse a magnetic field to generate the high voltage needed for an ignition […]

What is ignition coil dwell timing? It is an important parameter which is governed by how an ignition coil works which was covered in the previous episode. Using an incorrect dwell time for your ignition coil could result in misfires … Continued

Welcome to Tech Bit Tuesday episode number four aired on the podcast Mod Tune Win Repeat! This episode is a quick discussion about how does an ignition coil work.  The ignition coil works the same way across all platforms using … Continued

This little nifty piece of information is not something readily thought about with tuning. Spark plug heat range is a measure of thermal performance of a plug. The hotter the plug (on the NGK scale) the more heat will pass … Continued

So which injectors you choose for you EFI build doesn’t matter? Wrong! Fuel injector impedance influences a number of components. In this podcast (also shared on YouTube) I share the key differences between the two broad types of injectors. Please … Continued

Pull up resistors explained! Welcome to the first episode of my new series Tech Bit Tuesday broadcast on on the podcast and the Built On Purpose YouTube channel. Tech Bit Tuesday is about sharing a piece of information that is … Continued

Probably the most important piece of tune data you can have comes from the air fuel ratio. Air fuel ratio is a measure of the combustion (oxidisation) chemical reaction between fuel and an oxidiser. The fuel is normally hydrocarbon based … Continued

Today’s podcast episode is thanks to a question I received from David Moynihan. David hit me up on Facebook messenger about his unique stroker build and was which piston ring gap should be used, factory or the manufacturer’s specification. Visit https://www.datsunpartz.com/ for … Continued

Do you w as ant to understand the three main kinds of designs of exhaust manifolds? Exhaust manifolds can be grouped in unequal, equal and tuned length manifolds. There are a few key differences explained in this podcast. Scientific design of exhaust and intake systems: https://builtonpurpose.co/recommends/scientificexhausts/ Visit https://www.datsunpartz.com/ for a comprehensive comparison on parts for your Datsun. […]