Author Archives: Yoshi

Yoshi’s Drift Box: Day 7

It seems like every time I make a post on this project, I do completely different things than I set out to do in the post. I wound up cleaning up some code (but not much). I realized that the … Continue reading

Posted in Drifting, Technology | 1 Comment

E30 Brake System Overview

While troubleshooting my general brake issues, I found numerous gaps in my own knowledge. So here is my current understanding of the general E30 brake system (within reason). To start, late model E30s (not sure about before) have a 17mm … Continue reading

Posted in E30 | Leave a comment

Manual brakes – LS E30 problems

The LS swapped E30 inherently has to ditch the vacuum assisted brakes. Directly bolting the factory master cylinder to the firewall causes a large increase in pedal effort that isn’t acceptable. For this reason, the brakes cannot be left alone. … Continue reading

Posted in E30, Technology | Leave a comment

Yoshi’s Drift Box: Day 6

A lot has happened in 2 weeks. I found out that the I2C bus is easily susceptible to noise like in an automotive environment so the UART connection made a bit more sense. Even though it can only take in … Continue reading

Posted in Drifting, Technology | 1 Comment

Yoshi’s Drift Box: Day 5

OK I lied. The urge to work on the expansion of inputs won over and I’ve done a bunch of research into that. The I2C connector the OBD2 plug uses is an expandable bus while the UART plug is only … Continue reading

Posted in Drifting, Technology | 1 Comment

Drift Box

Drift boxes are units for on track data acquisition. Many aftermarket units are well into the thousand dollar range. I’d like to create a cheap unit for data logging and drift telemetry. Drift Box Day 0: Project overview Drift Box … Continue reading

Posted in Uncategorized | Leave a comment

Yoshi’s Drift Box: Day 4

I finally managed to get the OBD2 protocol working. It was mildly embarrassing but at least it works now. The screen shot below looks like a jumbled mess but that’s ok. To help figure out sizes and place things appropriately … Continue reading

Posted in Drifting, Technology | 1 Comment

Yoshi’s Drift Box: Day 3

Well at least I’ve made some form of progress. I originally wanted to make the log files queue all data then export gut the gps polling and other parts of the system don’t update in unison so it was simpler … Continue reading

Posted in Drifting, Technology | 1 Comment

Yoshi’s Drift Box: Day 2

It’s only been a year and two months since my last update. I did get a lot of interest in this project so I figure I’d update. Before I put this away last time, I managed to get all major … Continue reading

Posted in Drifting, Technology | 1 Comment

Driver Theory: Jefferson Expansion Post Mortem

Well that did not go according to plan. Jefferson wound up getting run in a reverse configuration. The course started at the #11 corner station and ran clockwise until corner station/corner #1. I only managed to get 2 honest runs … Continue reading

Posted in Drifting, Theory | Leave a comment