Are you sure you want to stay NA? that's a low compression engine, and shines when under pressure, I would go with at least a GT2554R. 200 rwhp will make that car real fun man,
1990 Mazda Miata + 2004 MSM donor Currently on the car: Kosei K1 15x7 w/ Yoko S.drives FM front bar, MSM rear bar, adjustable endlinks Sparco Speed MSM brakes SS lines Tein Basis MSM driveshaft, diff, axles, and hubs Have, but not yet installed: MSM motor with 67k miles (minus the turbo, staying N/A) 6-speed transmission HD clutch (haven’t pulled the trans off the engine to confirm this yet) Sparco Pro 2000 Coming soon: Megasquirt HDM2 Roll Bar Front lip RB header Exhaust ITB’s?
Some observations from the swap: Doing the NA -> NB conversion will “nickel and dime” …
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