Still working on the web side of the TPMS as need to figure out how to run scan and get feedback as scanning is a heavy load and blocks the web server while running. Will likely add a scan time for user to set rather than 5 seconds. That way you can have a 5, 10, 20, 30 second option giving time to get the sensor to wake up and start broadcasting.   Some you can just blow on, others need to be atmospheric then 20psi+ and last lot require a lot of movement. Movement ones can take the longest to wake up, eg put in a bag and spun around. Had to learn a bunch about Bluetooth packet headers to write a custom parser since the built in one decodes far more than needed for beacons like tire monitors.   Another area I’ve been looking at, is aerodynamics which other than wool tufts needs measurement. I already have some aircraft vortex generators fitted. Anything aerodynamics related costs way too much money or have very limited use. Making 8 channel sensor set doesn’t look expensive compared to to the 1-10k price for an off the shelf device. Sensors can be a mix of single point measurement or dual point(differential) ones, eg single measures absolute pressure and differential you place a tubes from the sensor to top and bottom of wing and it measure the difference.   

Added rubber seals to doors. Both the outer gap between front door and fender, and between front and rear doors.   Between the door one just pushes on to the rear door lip. The front one is a pain with limited space and hinges in the way. each type covers both sides and are usd$5-7.50 under aliexpress bundle deals. For bundle deals order 6 items each time to maximise the auto applied discount.   front to fender is called Z seal.   between doors  https://www.aliexpress.com/item/1005011547474124.html   have a rear door to body seal on order.

Tpms Bluetooth and canbus all tested ok. Can read any known sensor when given ID.   Now need to write the web interface and scanning for new sensors IDs and detect the type. Will basically act as Bluetooth to canbus bridge. Sending sensor ID along with pressure and temperature when it comes in.  TPMS also send alerts when pressure drops below 20psi which should be a unique message so ecu can trigger warning eg engine check light or dash message.   A few more brands of sensor arrived finally. For some reason on got delayed and has been at airport for a week.   The 3 types should cover a large selection of aliexpress ones. I have seen one 6 wheel set on there that look different that maybe different. The most common type that is documented everywhere is the same as the haltech ones.   Since there is no standard for how to measure tire pressure from some sensor read 0 at sea level not 100kpa, 1bar, 14.5psi.       below supported so far… can be mixed and matched as software doesn’t care what type is on which wheel. Sometimes aliexpress has cheap sets of 2 for bikes. The ones still at airport look the same as 2 below but are Bluetooth 5 not Bluetooth 4. My guess is they are exactly the same data just faster and lower power.     1) random cheap usd$15 ones I first ordered and decoded. Similar to most common but have different voltage calculations. 2) these are common format ones same as haltech. Many have Leepee on them. They have a larger antenna around battery.       3) these were the second cheapest when on sale at usd$16. Only pressure decoded, not temperature data.  In Bluetooth manufacturer data starting with AC00 Or 00AC depending on byte order  ( ( byte2 | byte3 << 8 ) >> 3 ) * 0.1 = kpa, then add 100 if you don’t want to read 0kpa at sea level.

Basically, fitting that BP/BL throttle body to the 20H intake is… snug. You're right to say it's not pretty! It's a bit like trying to fit a square peg in a round hole, and it needs some clever work to make it happen. What most people end up doing is building a sort of "adapter" – a custom piece that connects the newer throttle body to the older manifold. Think of it like a bridge between the two. It's usually made from aluminum, and it needs to be pretty accurate to get everything lined up.

Sti hatch likely to be released based on last years mktor show demo and close to patients. BRZ to enter Japan rally this year in 4wd, no indication that there will ne road going version. But this is the second time that a factory 4wd drive BRZ has been made.   on track from a couple of weeks ago.