After a 5 year absence the father/son project Miata has once again returned “home” to my garage. Time to get busy tuning the Megasquirt.
The plan is to tow the Miata from my dad’s house to my house after Thanksgiving so that instead of hibernating in a cold garage all winter long, it can stay cozy and warm in my garage where I can begin the painstaking process of tuning the ECU as time permits. Our winters are generally much more mild and thus more conducive to working on cars. Also, we have a lot more dyno facilities in my area. The goal is to street tune the car. Then once the car is generally drivable and I better understand the ins and outs […]
I’m using a Pingel Power-Flo On-Off “Race” fuel valve with a 5/16″ outlet. My Mikuni VM30 carbs are designed for a 5.5mm ID fuel supply hose. Given the size mismatch I needed to find a way to step down the hose size from fuel tank outlet to carb inlet. To do this I routed the fuel as follows: From petcock through 5/16 Tygon F-4040-A hose to Jiffy–tite dry break fuel system quick disconnect (-5 AN inlet, -5 AN outlet). From quick disconnect to Pingel 1-in 2-out fuel filter. Conveniently, the fuel filter is 1″ in diameter so I use a stainless steel […]
I stumbled across this charming 1925 Morris Oxford Long Wheelbase “Bullnose” Tourer auctioned by H and H at the Chateau Impney sale in Droitwich Spa, Worcestershire, England back in 2014. In the auction catalog I spotted this picture showing the most charming dashboard pipe holder and ash tray. I can see it now, a gentleman motoring down a narrow country lane, wearing a tweed jacket and cap, pipe clenched between his teeth. How very 1920s British!
Check original base tune setting for CLT thermistor setting. I messed around with this when my CLT sensor was stuck at the failsafe value of 180F. Turns out I had a broken wire in a butt splice underneath some heat shrink that I repaired. So which is it, Mazda or RX-7 S4&S5? Figure out why MS3 is not reading NB cam sensor. Could be bad sensor or bad wiring between sensor and CAS harness. According to Reverant, the MS Labs MS3 needs no adjustment to fix this. Maybe it has a circuit that automatically adjusts sensor input sensitivity or gain? Regardless, I’m unsure whether there is a […]
“Brakes just slow you down.” Check out this nifty Miata Brake Bias Calculator from Black Art Graphics. I have no idea how accurate the calculations are but it’s something neat to play around with. Now I just need to figure out what combination of brake master cylinder, vacuum booster, caliper, rotor and pad gets me the desired pedal feel, effort, feedback, clamping force and thermal capacity while fitting under most all 15 inch wheels. I’ve never been super happy with the way my 1.8 brakes felt and I’m hoping a quality big brake kit (BBK) will go a long way […]
I’ve long been a fan of TODA Racing Co., Ltd. of Japan. They manufacture consistently high-quality engine parts for a variety of Japanese cars. I’m proud to say that I’ve got their lightweight flywheel and adjustable cam pulleys on my own engine build. I’ve even got a red valve cover in no small part to the image below. When I first got into Miatas I wanted to build myself a copy of this engine. Sadly, the TODA individual throttle bodies are no longer available and they never offered their custom, high-rise, equal-length runner exhaust manifold to the general public. But I can say […]
The overall vibe I’m going for is a bit of a restomodified M2-1001. The purpose of the car is primarily to enjoy spirited drives along rural backroads with the occasional auto-x and track day thrown in for good measure. As such, the car will remain normally aspirated and the build will seek to enhance the original character and feel of the Miata without going overboard (no offense to those who like to go overboard). Ultimately I want more of a purists car that is relatively simple and light, both figuratively and literally. Think modern day Lotus Elan with Japanese reliability. […]
com·ple·tist kəmˈplētist/ noun an obsessive, typically indiscriminate, collector or fan of something. My Road&Ster magazine collection is complete. I have every issue from #1 to #58. I also have every Eunos/Mazda Roadster HyperREV issue from #1 to #6 and every issue of AiR from #1 to #7. It took a long time but it was worth the wait. It’s a lot of fun to look through these old issues. Now Minkara and other enthusiast forums on the Internet have replaced Road&Ster. It is sad that Road&Ster is no more but I am happy that I can go back and enjoy […]
Old, old pics. But you get the idea.