4A GZE Injector

[SG-EE100]

Can someone please kindly tell me the exact "CC" of 4A GZE Injector? Having some problems like can't upboost due to not enough petrol when dyno tuning.. Thanks

[turbo48]

they are 365cc

[roadsailing]

365 cc

this is the 5th result from a google search of "4AGZE injector"

http://www.club4ag.com/faq%20and%20t...-GZE_specs.htm

[SG-EE100]

they are 365cc

Hi, just went for dyno tuning. My set up are ,

- 4A GZE engine
- Emanage Blue ECU
- Evo 8 Fuel Pump
- VR4 FMIC
- VF35 (WRX STI Turbo)


Strange thing is that i can go beyond 0.7 Bar boost and i intend to upboost till 1.2bar... Fuel is simply not enough. My tuner was asking me if the Injector is really 365cc or not. Guys out there, is it possible to help me to check if the injector serial no is it - 23250-16061. Thanks a million...

[roadsailing]

if your injectors are too small, they are too small.

what fuel pressure are you running? what injector duty cycle is your tuner using? what power does it start to lean out at?

[SG-EE100]

if your injectors are too small, they are too small.

what fuel pressure are you running? what injector duty cycle is your tuner using? what power does it start to lean out at?

Fuel Pressure is running at 3.5 bar. As for the duty cycle i am not too sure.. Currently running on 0.7 bar at 254BHP, on crank..As for the torque is 303.. The tuner mentioned that if the original injector is 365cc, it shouldn't be a problem to upboost till 1.2 bar.. I have checked the fuel pump, it works perfectly fine.

[Talasas]

Maybe have them cleaned and spray pattern tested to make sure. They should be enough for that much boost. What MAP sensor are you using?

If you really find it's not enough fuel you can try 7M-GTE injectors at 440cc.

Also make sure the eManage isn't set to overcompensate for the fuel injector size (try a correction factor closer to 1)

[monkeymajik]

v35 is a pretty big turbo (for a 1.6L), i wouldn't been surprised if you could max out 365cc's on 0.7 bar with one of those.

[Vios-GT_07]

i'm with talasas... go the 7M's 440cc/min injectors.. the way i see it, if u can max these out then ur car shouldn't be on the road... then turn to sard for some bigger injectors..

hmm.. for such a big turbo i'd suggest bigger fuel pump as well just to be sure.. ? evo 8 fuel pump is only able to support around 300hp isn't it? i believe they go for 180 lph (forgot the fuel pressure).. gee 254 hp out of a 4A-GTE is quite high already.. pics of the A/F ratio dyno + map settings? just curious what duty cycle u're running as well..

[IH8TEC]

it is very common to max out the std injectors with an aftermarket computer, most people here in nz get to 10-11psi out or them,

a common upgrade is mitsi lancer vr4 440cc items (good for 220kw atw) , or like me, go to rx7 550cc injectors (good for lots more)

how much power are you aiming for, then decide on a new injector, tell your tuning he's on crack if he doesn't believe they are 365 factory lol and you'd think he should know things about injector sizing etc :S

that power isn't that high, although it's in Bhp, isn't that different, i'm sure it is, cause lets say it's like normal horsepower, thats 189kw atw on .7bar with std injectors, i highly highly doubt that. i'd say max with those injectors would be about 130-140kw atw safely.

let us know how ya get on, bu basically, thats normal. just get some bigger injectors and you'll be right

[4agte]

that power isn't that high, although it's in Bhp, isn't that different, i'm sure it is, cause lets say it's like normal horsepower, thats 189kw atw on .7bar with std injectors, i highly highly doubt that. i'd say max with those injectors would be about 130-140kw atw safely.

let us know how ya get on, bu basically, thats normal. just get some bigger injectors and you'll be right

he said the power was at the crank not atw so its probably closer to 130kw atw getting kinda close to maxing them out they should support 140-150 atw i would have thought

[IH8TEC]

possibly if you wanted to lean it out alot more, but most tuners here will make it more on the rich side for engine life, keep it safe. the most i've seen personally here is 140

[SG-EE100]

v35 is a pretty big turbo (for a 1.6L), i wouldn't been surprised if you could max out 365cc's on 0.7 bar with one of those.

Erm, i would think the turbo size is ok only, saw the dyno chart , full boost is at around 4000RPM... Would that be considered laggy?

[SG-EE100]

it is very common to max out the std injectors with an aftermarket computer, most people here in nz get to 10-11psi out or them,

a common upgrade is mitsi lancer vr4 440cc items (good for 220kw atw) , or like me, go to rx7 550cc injectors (good for lots more)

how much power are you aiming for, then decide on a new injector, tell your tuning he's on crack if he doesn't believe they are 365 factory lol and you'd think he should know things about injector sizing etc :S

that power isn't that high, although it's in Bhp, isn't that different, i'm sure it is, cause lets say it's like normal horsepower, thats 189kw atw on .7bar with std injectors, i highly highly doubt that. i'd say max with those injectors would be about 130-140kw atw safely.

let us know how ya get on, bu basically, thats normal. just get some bigger injectors and you'll be right

Alright thanks bro, guess i would go for Vr4 injector (440 cc). The tuner said that if i were to boost 1.2 bar, 300bhp (on crank) shouldn't be a problem.

[4agte]

the 7mgte 440's should drop straight in