Looking to turbo my 1990 1.6 miata, is it possible running a turbo kit with a stock ecu?

 

Yes its possible

 

Up to 15psi without other mods

 

No you have to swap an LS in first

 

you will have the first turbo 1.6 miata.

 

Sure, but if you are asking that question you don't know enough to turbo a car. Go research.

 

K swapping on the stock ECU is the new hotness.

 

Depends. How much do you like ringlands?

 

I thought it was running stock engine with a K-motor ECU?

 

Jesus christ, now I understand why this forum is toxic af towards new people.

 

Sure, it's possible with piggy back attachment (not recommended). but I would just save money and buy a standalone ECU like a megasquirt, which gives you full control over fuel map and everything else ECU related and standalones will make reliable power.