Plz Is it really possible to fit for NB /99/ miata 1,6 16V 81 kW injectors from for example Supra non turbo 311cc /light green top/ saturated high impedance?

 

yes they plug right in. Tuning them is another story.

(USD) '99-00 injectors are actually only rated at 238cc, but run at 60psi as opposed to 50psi on all other miatas. The ECU would probably have no trouble idling 94-98 and 01-05 injectors, which are rated at 265cc. An increase of 11%. Capable of 215BHP at 100psi of fuel.

I'm sure it could idle the supra injectors, but you may see a rich idle. I dunno how a MAF miata would go about leaning out the idle without an ECU, unless the ECU can compensate for a 22% larger injector.

Early miatas can mess with the AFM and adjust flapper tension and idle mixture.

 

thanks ,I will try to fit something around 300cc

 

I have those in my '99, works great. I'm making somewhere around 205-210rwhp on those. Controlled by EMU.

 

You can also run RX7 550cc High Impedance injectors as well.
Just throwing out another option.

 

Sorry for the offtopic but how much power can be made with greentop 310cc injectors on otherwise stock NB fuel system?

 

I know the 99-00 NBs runs at 60psi (returnless), so around 200BHP.

 

Wow, how come I'm making 210rwhp on those, with 12afr all the way to redline, at least my wideband says 12. I must be maxing them out ha?

 

cause you got yourself an EMU that can tinker with pulse widths and this and that.

 

Alright, but I'll still try to get some bigger injectors as I plan on raising the boost 1-2psi to get to about 220-230rwhp.