BASSNIANO

hello evryone. after some time i have put jdm s5 in my 87 t2. now i am finding out i need diff. injectors ,oil pump ,etc. i have manual oil pump but no injectors. so i decided to go w/ aftermarket injectors. since i have full 3inch exchaust my car will be boosting more so why not upgrade fuel system? what size of primary and secondary injectors should i get? i was thinking of ordering walbo fuel pump of ebay and getting fuel regulator? someone please, some advice where i live noone knows about rotary and as u can tell i am not on expert. cheap good way to have around 300-350 horses and still have non-blown rotary? all advices welcome and thanks team

Brody8877

iTrader: (10)

definitely go with supporting fuel mod so that you go lean. Also i think you should por t the turbo so it wont boost creep when you put in new ehaust. As far for injectors you should run recommended min of 720cc for secondaries injectors. Walbro Fuel pump sound good, but if you want you can run a nippon denso fuel pump aka the supra fuel pump. when upgrading the fuel you should have a fuel computer to to support it and all.

remember S5 are high impendance injectors, if you low impendance aftermarket you must get resistor for the injectors before damaging the ecu.

hope that helps

BASSNIANO

thanks man that kind of helps. can anyone tell me if i put s4 t2 injectors in s5 engine ,is i t ok,or where can i go to find after market injectors that will work with s4 t2 harness and s5 t2 engine? resistors? this whole thing is new to me. thanks once again

Brody8877

iTrader: (10)

are the s4 injectors low impendance or high impendance?
87 - 87.5 are low impendance
87.5 + are high impendance.
note S5 injector clips are round and s4 are square.
since your upgrading you to an full exhaust i perfer you upgrade the secondaries injector.

you can replace the original injector clip with a new one if you have to, and add resistor if you have to.