Size Of R33 Sii Injectors

[fandango]

had a search, but couldnt find. just wanted to know the stock size, as im looking at upgrading in the next month or so

thanks guys

[wolverine]

370cc

[abu]

RB25 uses side feed high impedance injectors rated at 370cc

A good upgrade is S15 injectors, they are rated at 480cc and drop straight in

[fandango]

thanks for your help guys

as always great advise, how much will 6 S15 injectors cost me???

[PM-R33]

^What he said.

The S15 ones will support about 250rwkw from what i remember reading.

[fandango]

just another question, how much power can stock injectors handle?

[PM-R33]

Without a fuel pressure regulator i wouldnt be pushing them too much past 215kw to be safe.

[abu]

I have seen a few cars pushing around 240rwkw, maybe best to check the RB25 dyno result thread

http://www.skylinesaustralia.com/forums/Rb...yno-t55845.html

[PM-R33]

Yeah that would be with an adjustable fuel pressure regulator. No way standard injectors can push that much on standard fuel pressure. Even with a FPR, 245rwkw is just asking for trouble on stock injectors.

Edited September 4, 2008 by PM-R33

[daxter]

I'm making 216rwkw on stock R33 injectors, walbro fuel pump and factory FPR, won't push it anymore till I upgrade the injectors.

Anyone know the cost for 6 S15 injectors new? My aim is the 245rwkw mark.

[The Mafia]

I'd just buy a set of Nismo 555cc injectors like I did, will manage 320rwkw easily.

Oh, should only cost about $600 too.