Recently I was lucky enough to be loaned a dry sump pan from the last of Audi R8 V8 manual for a looksie.  It was an interesting piece of engineering.  This inspired this podcast episode. Check out the blog post on my website too! ***SAY HI!*** Email: [email protected] Instagram: https://www.instagram.com/built_on_purpose/ Facebook: https://www.facebook.com/builtonpurpose1/ ***FEEL LIKE SUPPORTING […]

Website: https://builtonpurpose.co/ Last build episode on youtube: https://youtu.be/w0QSTkiheCM Hey guys, it’s Aaron from Built On Purpose. This is going to be a technical article, an episode, so to speak. If you’re tuning in on the podcast, Mod Tune Win Repeat, thank you for doing so. I understand it’s a long time since my last cast, […]

in December 2020, Nissan announce the Nismo restored car program for BNR32, BNR33 and BNR34 Skyline GTRs. I think this is a great program however it is not a new concept for a manufacturer to restore popular models. Mazda have been restored the very popular and well known NA MX5 roadster. Mazda have even hired […]

I’ve been able to live under a rock and avoid the hype around the Nissan Z proto 400Z release which was difficult being a made 240Z owner and fan. I emerge from under that rock and review the hype for myself. This raises a question for any new standout car design. Is if difficult for […]

This week’s cast is brought to you by a suggestion on one of my YouTube videos by the user ‘New Found’. If you like this cast please help out by checking out the summary guide on my webpage here: https://builtonpurpose.co/ohv-vs-sohc-vs-dohc/ There are three types of valve-train used in petrol engines and all three are still […]

Cast vs forged pistons, what is the difference? Both types use the same alloys but it’s the manufacturing process that gives difference results. Forged vs cast piston manufacturing The difference in manufacturing process is cast pistons are made from pouring molten alloy into a mould which is allowed to solidify in a controlled way. Forged […]

Visit the website: https://builtonpurpose.co/ Subscribe: iTunes | Spotify Now, match porting manifolds. This is the process of modifying ports to align smoothly at the gasket, removing obstructions to the air flow pattern. Why do this? Well let’s jump into some background info on fluid dynamics. Air is essentially a compressible liquid and conforms to hydraulics. Whenever a fluid […]

Download the dynamic compression ratio calculator spreadsheet here: https://builtonpurpose.co/tools/ Subscribe: iTunes | Spotify What is dynamic compression ratio? It is not commonly known.  Most are familiar with static compression ratio used to describe a characteristic of engine.  But what is the difference versus static? Static compression ratio uses the volume associated with a full sweep of the piston […]

Check out the website: https://builtonpurpose.co/ Subscribe: iTunes | Spotify This episode is related to something that really grinds my gears and that is recommendations of using knock threshold to set ignition timing limitations. An example of this someone asks in a forum or public setting “what is the best timing for my ignition to make best power?”and the […]

So what is the difference between coil over plug and distributor?  Simplistically the difference is the number of ignition coils. A distributor-based ignition has one coil for the whole engine using mechanical means to distribute the spark.  This type of ignition does not require any electrical control and is reliable. However as RPM climbs the […]