Another update is ive changed my injector setup to try and give me a more reliable setup, make mapping easier and save some money.

Christian reminded me of these with his recent thread as i forgot all about them

There was a few issues with my original idea which i did not foresee.

One was that the additional 1600cc injectors are low impediance which means i would have to install resistors before the injectors, i knew of this and didnt think that was a big deal.

I assumed that would make them act like high imp ones, and my apexi ecu would control them as such(thats normally true) i was gonna trick my ecu into thinking that each injector was infact 2450cc(1600cc+my original 850cc) so that they fire together, the issue is the ecu will end up messing up the transition from small primary 550cc to the 2 big ones and flood the engine.

I have now solved this problem by coming across 'injector dynamics' 2000cc injectors, they are special injectors that even when the fuel pressure is increased they provide a consistant spray pattern.

by running these at 50psi base pressure they will provide 2500cc each which as i need 6000cc and i have 1000cc in primarys in the car this will be perfect.



the other benefit is i now dont need to by injector holders to weld into my upper inlet manifold which saves me money, the injectors are more expensive than the 1600cc, but i think its work it for simplicity.

they can get a leaner idle running 4x2000cc on a stock honda non-vtec integra than the 240cc stock ones, thats how good they are

plus they are great if you up the fuel pressure, with 130psi of pressure they flow 3700cc! so at that pressure ill bet ill be pushing 8800cc worth of fuel, that will be mint for E85 fuel, empty a 72litre fuel tank in 8mins flat out lol