The all motor 206HP Mx-5

When I purchased this Mx-5 I made a pact with myself to never sell this one. The reason behind this is because I keep returning to mx-5’s, I’ve tried many cars but the way the mx-5/miata drives just makes me smile everytime. The one I own now is the 10th mx-5/miata I’ve owned. I have a tendency to sell my cars after I’m done building them, but I promised myself this time would be different. (Let’s hope it’s actually true this time)

!The speclist of the entire build is at the end of this post!

Because I’ll “probably” never sell this car I’ve decided to make it the build I’ve always wanted. A black and tan miata with an agressive NA motor which is still capable of city and backroad driving without too much of a hassle.

Together with Nils Hummelink A.k.a. Hummelink Modifications we came up with a plan to achieve the result of the engine side of things. I decided to stay true to the mazda form and went for a 1.8 VVT engine as the basis. It’s of course less practical/logical than let’s say swapping a K-series, since they have more bang for buck. But having a mazda heart in the mx-5 is what I personally preferred to have as it suits the classic roadster vibe that I want to achieve with this car.

It started out as a damaged 1.8 VVT engine from a friend of mine which also ran itbs in the past. But since we wanted to increase the displacement of the engine it didn’t matter that the cylinder walls were scored.

Nils really did an amazing job restoring/building the engine.

He created a custom thermostat neck plate which has the skids and tea logo and his(Hummelink-modifications) logo engraved in it. These minor details matter and shows Nils’s skillsmanship the attention to detail he has.

The car made 206 crank horsepower on a (heartbreaker) dyno. The engine revs up to 8500 but as you can see in the dynosheet below the power kind of stops rising around 7800 RPM.

The car feels very good the way that it’s built, I’ve always been afraid of ITB builds being very unpractical, but Nils has proven me otherwise. The rather “extreme” built that is done has not affected the drivability in such a way that I would hesitate to take it out for a little backroad drive.\

It really is a treat to drive. It’s so much fun to rev it all the way up there, to shift into higher gear and that you get to enjoy the ITB’s screaming from bottom to top all over again. And does it feel fast? Yes!

I’ve owned two mx-5’s which were turbo charged and yes they feel fast as well. But having the engine scream/raging, that violence does not compare to the more surgical turbo experience.

As for now the car is nearing completion apart from some small interior and exterior details which are to be added in the near future. The main things that needs to happen still are to add a Torsen differential (which I’ve already sourced from a friend) and to restore the subframes/rubbers. Of course there will be a lot more that I want to do to the car in the future but I firmly believe a car project never ends.

I want to thank Nils Hummelink again for doing such a good job on building this engine.

Complete restoration
New sensors
New gaskets
Every part cleaned and possibly re-painted
New starter
New alternator

11:1 compression ratio
1.8 vvt block bored out to 1.93
K1 rods
Supertech 85mm forged pistons
Acl bearings
Arp studs
Boundary oilpump
ATI superdamper

Supertech 85mm headgasket
Supertech springs
Supertech shim under bucket kit
titanium retainers
Catcams 278 angle, 10mm lift
Flowforce injectors 380cc
3-angle valvejob / flowed and shaved
AN-10 breather upgrade

Bolt-on stuff
Itb adapter kit Hummelink-Modifications – 4age itbs with Pipercross PX-600 airfilter
3.4kg flywheel and competition clutch
Hummelink-modifications coolant-reroute
Hummelink-modifications coolant hose kit and vacumblock
IL hardened motormounts
Bofi Racing Oil-cooler kit

Stock 1.8 calipers
Ebc grooved and dimpled brake discs all round
Stoptech Sport brake pads all round

Bc-Racing Coilovers
Work equip 01 14×8 et7 with 5mm spacers all round
Nankang ns2-r 185/60/r14 all round

M2 mirrors (originals from japan)
R-package front lip

Other stuff
Me221 ecu
AEM wideband
New stainless exhaust header
Racing catalytic converter 200 cells euro 5

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