hi, my car is on progress of turbocharging @ the moment
im confused how many injectors should i use ?
i wanna use the standard 4 B18C injectors , plus the extra injectors
the extra injectors are 550cc out of 13B Series 6 RX7
i just wanna run like low boost , consider my block still standard
thanks in advance

 

What would you use to drive the extra injectors? For low boost, you could get some prelude injectors and a VAFC + FMU. If you already have a MF2 or additional injector driver, two 550cc injectors is good up to ?? horses (I think 150 extra horses) assuming the fuel flows evenly to all 4 cyls at 80% duty cycle and 44psi fuel.

 

ill be using TurboLink ( some piggyback compie to control the extra injectors )
how big are prelude injectors ?? and will they fit straight away into my B18C fuel rail ?
thanks for ur help

 

why don't you just use (4) 550cc FC RX-7 injectors with a resistors installed and a stand alone ECU...

 

probably because its expensive!

 

my reasons :
1. yes its expensive
2. i think it will be too much fuel if i run 4x 550cc injectors for running low boost only

so im still thinking whether just to use 1 or 2x 550cc injectors along with my standard B18C injectors

 

Forget both.

Get RC 440cc injectors and a Hondata Stage 4 system. Call it a day.

 

what did the 550cc injectors run you??
i need 4 of them myself

bdity1@hotmail.com email me please

 

If you're gonna be going with mild boost, just go for some 440 RC's with a V-AFC to turn them down at partial throttle. Can't go wrong there since you'll have low pressures in your fuel system and you'll be able to go with a stock or high-volume intank pump, no inlines needeed. his is of course assuming you don't wanna go with a standalone which will let you tune a set of 440's to even further lengths.