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Hi-flow Injectors?

BAMR33

By BAMR33,
in Engines & Forced Induction

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666DAN Grand Master

666DAN

Posted
Posted
After having injectors hi-flowed by AVO I had my car tuned and have been happy for 2 years now.HOWEVER,I recently did some work to the car and needed to get it retuned so decided to see the Hitman in Penrith.I was amazed when he changed the flow on each injector and I could hear the difference on two of them.They weren`t pulsing correctly.He claims,and I agree that the spray patterns just aren`t right.To be honest,I never felt totally at peace as they were visually different on each hole.Thats four holes per injector by 6 injectors.

So now I`m waiting for my Nengun Nizmo injectors to arrive.I have the feeling I`ll be able to add some more timing due to better spray patterns.Fuel consumpsion will be better to.Thats the theory anyway.By the way,did anybody notice the Deuchewerks RB25 370cc injectors and how you can`t mix them with standard 370cc injectors.Does that tell you something? Obviously the spray patterns would be different and therefore if mixed different cylinders would run rich or lean.

That would only be common sense seeing as they would have flow tested and matched the set, throwing them in with factory ones would defeat the purpose of going to the trouble.

race_snooze Grand Master

race_snooze

Posted
Posted
I thought you meant 250hp in an earlier post. 240kW with stock pump/injects its gotta be leaning out like a b1tch, do you run a PFC?

13 to 1 which is now fixed just need to dyno check that. Running a Nerve ecu Remap check the RB25 turbo upgrade section.

MearCat Proficient

MearCat

Posted
Posted

For less than the price of the "hiflowed" 440cc injectors from deatschwerks.com, I got a set of 6 x S15 480cc injectors for my R33. Just another option for you if you don't want to go the hi-flow squirts route...

MearCat Proficient

MearCat

Posted
Posted

I got 4 injectors from a guy on the Nissan Silvia forums. The other 2 injectors I got from Ebay (sent from USA). Total cost - $405 (before cleaning and flowtesting). The Ebay guy sells them brand new for ~AUD$100ea or 2nd hand for ~AUD$75ea

The S15 (Jap Spec only - I think Aus spec S15s have 370cc) injectors are direct drop in for the RB's. No collars or mods required.

BAMR33 Mentor

BAMR33

Posted
  • Author
Posted
For less than the price of the "hiflowed" 440cc injectors from deatschwerks.com, I got a set of 6 x S15 480cc injectors for my R33. Just another option for you if you don't want to go the hi-flow squirts route...

Yeah, I know s15 injects would be a good option as per my first post in this thread. Finding 6 all in good condtion is a bit of problem though. Anyone got 6 or 4 or 2 they want to sell me?

Birnie Veteran

Birnie

Posted
Posted

Which ones from other cars are compatible?

I'm sure I've seen previous threads with mentions of RX7 ones. Also saw en ebay add for WRX ones and he 'thinks' they may be SR20 compatible which should mean R33 .. right ????

Any others???

666DAN Grand Master

666DAN

Posted
Posted
For less than the price of the "hiflowed" 440cc injectors from deatschwerks.com, I got a set of 6 x S15 480cc injectors for my R33. Just another option for you if you don't want to go the hi-flow squirts route...

Yeah the ones I posted are for R34's where getting injectors is a complete bitch.

BAMR33 Mentor

BAMR33

Posted
  • Author
Posted
Which ones from other cars are compatible?

I'm sure I've seen previous threads with mentions of RX7 ones. Also saw en ebay add for WRX ones and he 'thinks' they may be SR20 compatible which should mean R33 .. right ????

Any others???

It depends which sr it is. I've never heard of wrx injectors into an r33 can anyone verify if this is possible?

Sydneykid Grand Master

Sydneykid

Posted
Posted
yep i have heard this aswell, they do fit in.

Early WRX injectors are the same as JZ injectors (and SARD), they need an adaptor collar to fit RB25's.

Late WRX injectors look like RB25 Neo injectors but I haven't compared them directly.

:P cheers :(

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