Injectors????

[rotary_rx4]

Hello lads i was wondering if anybody can help..
I would like to upgrea the injectors and the fuel pump
wat size shall i use? Brand ? Any suggestions? My car is on twins and runnin 345 with pfc.

[neil_jdmr]

345fwhp on standard pump and injectors is pretty impressive, what boost are you running? and what are your injector duties on the pfc at the moment?
 
Best off with a walbro 255 or a bosch 044 and tbh uprated injectors are probably overkill unless your going single an aftermarket pump and fpr are usually more than enough for standard twins.

[rotary_rx4]

Hello mate thanks for the reply . I was runnin on 9 lb i need to chanhe the secondary ones?? To 770? And bugger pumb? Is that good?

[philiwily]

Standard secondaries are 850cc. Most people put 1600/1680 Bosch injectors in place of them but you would need to replace the fuel rail as they are top feed and the standard ones are side feed. You would also need to fit a resistor in line as they have less resistance than the standard ones.
You can use a Toyota Supra Denso pump which is better and a straight swap.
Rewiring the pump can help as you can get an extra couple of volts to the pump.
I would read up on stuff before you go ripping your car apart and watch what your doing as you will probably be hitting 100% duty just now.