I have a 1990 miata stock 1.6 with rx8 injectors (420cc yellow) and a cxracing turbo kit on it. When i bought the car it had a greddy kit with a stock ecu, FMU, and MSD suparcharger advance ignition. Do i need to remove the fmu and ignition box for my megasquirt to work or will the computer/tuner be able to work around them. Hoping to be able to make 12-15lbs and for 180-200whp.

 

Yes you need to remove them

Are your injectors 100% absolutely no doubt genuine?

 

I bought them for $60 on ebay so not likely but they can push 12psi with no tune and still be super rich so they’re fine for my purposes

 

https://www.miataturbo.net/engine-pe...jectors-91720/ have a look at post #8. if you have a 22% flow difference as this set have, you may be rich and safe on one cylinder but leaning out and breaking ringlands on another. "In my case, my injectors were off dynamically through various pulse widths which means that i would be in danger of having a lean or rich cylinder screwing up my AFR readings. If one cylinder is very rich and another is very lean, the wideband may show a specific AFR, but that doesn't mean that's the AFR in each of those cylinders."

 

yeah thats what i get for buying cheap parts 🤷🏻‍♂️ Im pretty sure ive already hurt the motor with some detonation issues and im just trying to have some fun with it before it lets go completely