1G Injector Limit

[celicapain]

he forgot to say the end:
my friend made 500 hpatw, just before it simultaneously burned a hole through each piston and threw all the rods out the side of the block.

that 370rwkw isnt it? im pretty sure even an rb26 engine needs an injector upgrade to get that power output, amognst many other things.
also no offense, just if your mate is getting that kind of power out of(assuming) stock internals/injectors 2.5litre can he let me in on his secrets?

[ekoston69]

i was under the impression the 7mgte 440s were basically plug and play for the 1ggte, i just plugged a set into my rail, and the plugs fit into the back of them like they were made for them, i have the earlier 1g, or yellow injectors though. Havent fired it up yet but some more info on how compatible they are would be great

also if you tighten the spring in your afm it makes life a bit easier for your safc to tune the bigger injectors

[TheToyman75]

Here is what I found with the flow rates for the Gen 3 Injectors

Not sure what the Gen 3 1G-GTE base fuel pressure is but a little research on the injectors shows this.


Edit: Just flowed them @ 3 bar. = 360cc wide open flow


Based on my personal output I would say 200rwkw is possible but probably not through an Auto.

[chris davey]

he forgot to say the end:
my friend made 500 hpatw, just before it simultaneously burned a hole through each piston and threw all the rods out the side of the block.

that 370rwkw isnt it? im pretty sure even an rb26 engine needs an injector upgrade to get that power output, amognst many other things.
also no offense, just if your mate is getting that kind of power out of(assuming) stock internals/injectors 2.5litre can he let me in on his secrets?

100-150hp wet nitrous kit

[Kyosho]

Ring:
Wollongong Motorsport Centre
Ask to speak to Jason

Ask about his R33 GTS-t.
It pushed just over 500RWHP, then pushed around 590RWHP with nitrous.
All on stock injectors.

Lasted 8 months with its only use being drag racing, and burnouts (It really never stayed off limiter)

Engine was used as a "test" for him to see what an RB25DET could take.

Takes a hell of a beating that motor.

But just bumping your fuel pressure up a bit, on a decent pump, will be perfectly fine.

[ekoston69]

just in regards to your injectors are you sure theyre high impedence? 7mgte(black), 7mge(green and yellow) and 1ggte(yellow) are all low impedence, and i would assume the 1ggte 3rd gen uses the same green injectors as the 7mge?? Hence low impedence? correct me if im wrong, but heres a chart:
http://www.lextreme.com/Injector%20data.htm

[ekoston69]

oh yeh, it does say on the page before that that the light green injectors are direct plug and play for 1uz, hence high impedence, my bad im assuming the light green injector on that chart is supposed to say 13.8 ohms, just a typo. That page also says that the green 315cc's are good for around 63bhp per injector, so 378bhp on the 1g. Hope that helps

[TheToyman75]

Ring:
Wollongong Motorsport Centre
Ask to speak to Jason

Ask about his R33 GTS-t.
It pushed just over 500RWHP, then pushed around 590RWHP with nitrous.
All on stock injectors.

Lasted 8 months with its only use being drag racing, and burnouts (It really never stayed off limiter)

Engine was used as a "test" for him to see what an RB25DET could take.

Takes a hell of a beating that motor.

But just bumping your fuel pressure up a bit, on a decent pump, will be perfectly fine.

Kyosho,

Pretty sure I read somewhere that red bull gives you wings so that must be true too.
In this case Internet Bull makes you look retarded !

An RB25DET stock injector is only 370cc (Side Feed).

To make 500 FLYWHEEL HP rule of them suggests you need 525cc injectors (at 100% duty Cycle). To make your 370cc injectors flow enough they woudl need to run a BASE pressure of 88 PSI Let alone once you add boost.

Do yourself a favour and get equated with basic physics.



And for anyone looking to make some calculations and wnats a guide this page is pure Gold.

http://www.witchhunter.com/injectorcalc1.php4

[celicapain]

kyosho, i think your friend may be slightly inflating his power output. he should be pushing mid ten's over the quarter with that kind of power. moroso's dont lie

[JustCallMeOrlando]

just in regards to your injectors are you sure theyre high impedence? 7mgte(black), 7mge(green and yellow) and 1ggte(yellow) are all low impedence, and i would assume the 1ggte 3rd gen uses the same green injectors as the 7mge?? Hence low impedence? correct me if im wrong, but heres a chart:
http://www.lextreme.com/Injector%20data.htm

The 7MGE injectors are the same as the 1GGTE ones. The early yellow ones are low impedance with a resistor pack, and the later green ones are high impedance with no pack.

[Kyosho]

kyosho, i think your friend may be slightly inflating his power output. he should be pushing mid ten's over the quarter with that kind of power. moroso's dont lie

10.8 to be exact.
GT3540 from memory he was running with the 1.04 (Hence the nitrous to make it useable)
Stock cams too.

Seriously, ring the workshop.
I've seen the car, I've seen the slips,
I've seen the dyno print outs.

I'm not bullshitting.

It was only 6-12 months ago everyone was saying that you couldn't make 500RWHP from an RB25DET with stock internals. Now they're popping up everywhere.

If you don't beleive me, doesn't bother me, but I'm being 100% serious when I tell you what it was used for, and how it was setup.
But if you want proof, ring the workshop.

[ekoston69]

The 7MGE injectors are the same as the 1GGTE ones. The early yellow ones are low impedance with a resistor pack, and the later green ones are high impedance with no pack.

yep so the black 7mgte injectors are direct plug and play for earlier 1gs, but not the gen 3 ones

[Jackel]

sweet i can use em, question will my stock ecu handle upgraded fuel pump 440 injectors and kkk k26 turbo?

[ekoston69]

with a piggyback fuel controller it should

[JustCallMeOrlando]

yep so the black 7mgte injectors are direct plug and play for earlier 1gs, but not the gen 3 ones

Neither are really plug and play, I'd still feel questionable about installing them even with a piggyback (unless it's a really good one). The plugs between the early and late injectors are different too.