SPICA was first implemented on street cars in the late 1960s in response to U.S. emissions requirements. Electronic fuel injection was in its infancy (D-Jetronic was available on 1970s v12 jaguars) and extremely expensive then (and not very reliable). SPICA mechanical fuel injection (initially developed for the Tipo 33 race car from diesel injection systems) was more precise than carburetors so could result in a cleaner burn and lower emissions than Carbs. The Spider started using L-jet EFI fairly shortly after EFI systems started to be widely adopted.Why did Alfa Romeo use their Spica mechanical fuel injection on Spiders instead of going straight to Bosch electronic fuel injection?
I know why they did for their cars with 1 throttle per cylinder, but Spiders never had one throttle body per cylinder, correct? So, why didn’t they use Bosch’s electronic fuel injection after making the switch from carburetors?
Also, what is the difference in character between the Spiders with Spica and the ones with electronic fuel injection? Is the sound different? Does Spica require sportier driving? Is the vibration different? Etc.