I'm about to upgrade my injectors from 550cc Purple RX7 Injectors to 880? MSD injectors.
I dont have the specs for the MSD injectors just yet, but what i want to know is if the microtech needs to be changed at all if the injectors are of a different impedance. I have emailed microtech with no reply as yet (3 days).
Also, this car has been tuned with the 550cc injectors. Should i be able to replace the injectors with the bigger ones and using a AFR meter just change the injector timings to get the right ratios again and NOT have to touch timing ? (its a MTX-8 and i have the program controller).
Thanks for help.