The reason I went 8 injectors is so that you can get better attomisation with the air as 8 smaller injectors can create a finer spray mist than 4 large hose pipes

I have also spaced both banks apart so that at high boost and high revs the bank furthest away from the valves will allow more time for the fuel to mix with the air all be it a spit seccond more.

One other reason of using 8 smaller injectors is that it allows you more controlability throughout the fuel map and at idle.


e.g. a 5% adjustment on a 1000cc injector can be a huge jump in fuel delivery compared to a smaller injector size

Just my 10 pence worth



Most of the top spec Touring cars run 8 injectors for this reason.

The software in my ECU was developed by MBE for the Honda BTCC to get ultimate controlability and power out the engine.