New intake plans, Jet Stream Ram Super Intake

The stock NC intake is pretty good from factory. Inlet is in the front right corner above the radiator into a muffled intake snorkel that travels across the front into...

New battery, again.

My Odyssey PC680 started to fail last season. Gradually lost power and took a long time to charge. I believe it was in the car for 3 years. Not that...

Trackday Rudskogen. 1.39,3

I ended 2018 by setting a blistering 1.37,8 lap time on my local track Rudskogen. Grenaded two engines that summer so I really needed a bit of win at the...

Exhaust back pressure testing part 2

Follow up on the earlier blog post where I measured the backpressure on the OEM exhaust I now have some data for two new setups, both with the OEM rear...

Catalytic converter failure

During my backpressure testing I had a discrepency in the logs and some stuttering and grey smoke during the end of one of the pulls.  I could not quite explain...

Measuring exhaust backpressure on stock exhaust and FMSC.

The stock MX-5 exhaust was put on to pass inspection (which went ok). Before I replace it with something more shiny I measured the exhaust backpressure.

Adding some (cheap) sensors for pressure readings.

One of my goals with the AEM Ininity and CD7 was to have better control over different engine parameters. For every step away from OEM we also say goodbye to...

F̶u̶e̶l̶ ̶s̶e̶n̶d̶e̶r̶ ̶u̶n̶i̶t̶ ̶f̶i̶x̶.̶

Update: This did NOT fix the issue. The problem is most likely related to a ECU reflash but not conclusive. I fixed the problem by calibrating it manually to my...

New brake pads and caliper rebuild

After my last trackday in 2018 the pedal felt softer. I thought it was the fluid that was cooked but did not change it as it was already late in...

Pierburg CWA 100-3 IC pump

I just got my new Pierburg water pump that I’ll use on the FMSC instead of the stock Bosch unit. I ordered it from https://tecomotive.com/en/products/CWA100-3.html

Interesting test of aftermarket and OEM ignition coils

I have been following a discussion on alternatives for the OEM NC coil packs on m.net. https://forum.miata.net/vb/showthread.php?t=637421 People running FI starts to see problems ~ 300whp with spark blowout and...

Yey! Migrated site to new platform.

After a lot of work I have finally migrated this site out of blogger.com. Say hello to my new hosting provider:

AEM Infinity parallel install part 1

There have been some interest lately in my AEM Infinity EMS install on my 2006 MX-5  so I might as well make an update.<div class="separator" style="clear: both; text-align: center;"></div><div class="separator"...

Wiring done right with Deutch DTM connectors.

I’m in the process of wiring in an AEM Infinity EMS where I’m creating the harness from scratch.  It’s a parallel install which involves splicing, teeing and cutting misc wires...

New wheels for the street and wheel weight comparison.

When I picked up the old 1.8 engine on the wreckers I also bought some super cheap Mazda 6 2.3 17” wheels.The 16” OEM wheels will not clear the new...

Spare engine

I got hold of a cheap MZR 1.8 out of a 2007 Mazda6 a while ago.I will use it as spare engine so for next season if the 2.5 problems...

Engine rebuild part 9 and beyond..

I just realised I haven’t made an update here since spring.Short story : The 2016 season has been a disaster with less than 2h behind the wheel and what feels...

Engine rebuild part 8: Assembling the bottom end, crank, rods and pistons. Twice of course...

Progress, although things are going slow.- Crank oil holes deburred. Took a lot of work to polish after deburr. No pics.- I received the bearings.The old ones were marked with...

Engine rebuild part 7: Valve lifter adjustment after valve job

The valve job I did earlier changed the valve clearance a tiny bit as it will position the valve further into the seat.  The MZR uses bucket between the valve...

Engine rebuild part 6: Crank finally arrived. Measuring clearances and ordering bearings.

Finally my crank arrived.  Actually the same day I showed up early in the morning and held a little speech regarding customer satisfaction. They used two months and all that...