Rb25Det Neo Injectors

[Josh...]

Juat got myself a hiflow turbo with a 14psi actuator biger fmic and a full 3" turbo back exhaust ! What I'm wondering will the stock injectors handle 14psi till the next round of cash to get sards and nistune ?

[xclusiv]

r34 and r33 both have 370cc injectors, i had my r33 at 12 psi with the same turbo by the sounds of it (3071 with the vg30 rear housing)

i had much the same mods as you and it had 200rwkw at 12 psi and was still running rich, so 14 psi should be ok i'd think

[Josh...]

I have a hyper gear hiflow with the .82 rear housing

[Rolls]

I haven't heard of many people safely pushing more than 230kw with stock injectors, at 14psi hard to say as I don't know what turbo you have but you will probably be ok.

If you are running stock AFM you will be close to maxing that out as well.

[zebra]

I dare say the stock ecu will have fit before you see 14psi

[Rolls]

I just assumed he was getting a retune... waste of time if you use stock ecu imo.

edit: nistune is next, the car will run like an absolute dog without a retune, get a 10psi spring and leave it at that, even 10psi will have it coughing and spluttering though with the bigger turbo.

Edited November 28, 2011 by Rolls

[gotRICE?]

Id say the fuel pump would run out before the injectors.

If your tune is conservative then you will be running very close to maxxing them out..

My stock turbo on 10psi with Walbro pump maxxed out the injectors easily when it was tune with a Link G4.

[Legionnaire]

It's kinda hard to say whether injectors should be fine or not without any specific info about the turbo. But my advice would be to get a package of Z32 AFM, injectors and fuel pump before bolting it all together. These three cost around 1000$ for a new AFM, a set of siemens 650cc's and a Deatschwerks pump.

[Josh...]

....... It looks like I'll have to wait :-( ill bolt up the zorst and fmic and I'm getting a warlbro 255L pump... that'll do for now then once I have the funds I'll get nistune inj and z32 and go to town :-D

[Josh...]

Also what are opinions on pjs hi flow injector treatment ?

[Rolls]

I don't trust high flow injectors, even with a flow test the spray patterns can be butchered. Buy something known and trusted.

[Legionnaire]

Yea, highflows may be okay, may be not, depends on how the've been modified, but almost always they're worse that injectors that come from factory with a designed flow. There are some good inexpensive offers for R34 injectors, starting from 50$/inj or there abouts. Search, there are some details about injectors suitable for NEO posted by forum members Simon-S14 and I think urtwhistle.

[Josh...]

Lookin around I see a brand called Jecs ? They seem

Pretty big in the states and are a fair bit less than sards or nismos ! I can get a 550cc set landed for $450 ?

[Rolls]

Just make sure you don't need an aftermarket rail etc.

[Josh...]

Yeah there a straight drop in and they come with a flow test sheet too. I can't find a LOT of info on them but what I can find is good news :-)

[Legionnaire]

Jecs used to be an in-house electronics manufacturer for Nissan, e.g. my AFM has "made by Jecs" badge on it, so it might be a highflowed set of stockies.

Do you have a link to the said set of injectors?

Edited November 28, 2011 by Legionnaire

[dori34]

simon uses siemen deka injectors, the 3/4 length 60lb injectors are a direct fit but will just need to rewire new plugs. you can get this from the states the cheapest.

im runing 600cc high flows and havent had any fuel or tune issues. currently making 245rwkw and soon to be 300.

speak to PJ on this forum, i got them down thru him.

[Hanaldo]

FWIW I'm using 660cc Power Enterprise injectors (I believe for a WRX), they were a straight fit no changes needed except the spacer.

[Josh...]

It was pj I was goin to get to hiflow mine I haven't heard anyone say they've had trouble with his treatments :-D

[dori34]

PJ is a good bloke and im happy with my high flows.

hanaldo; how much did you pay for them?