Injector Ideas

[Kolossus]

Hey guys just throwing ideas around for my 300gt sedan, would 350gt injectors give me some kind of boost and would i need some sort of fuel management piggyback for it to work (my injectors are dying hense the idea)

[R6n350GT]

Hey guys just throwing ideas around for my 300gt sedan, would 350gt injectors give me some kind of boost and would i need some sort of fuel management piggyback for it to work (my injectors are dying hense the idea)

It would only be worth doing (and i can sell you my 40,000km old injectors within the month once i go FI) if:

You get a piggy back and get a tune

if you stock injectors are smaller than our 288cc ones or 330cc (cant remember exactly)

if you have other mods (plenum spacer, pod, exhaust etc) that are increasing the air into engine and thus your engine needing more fuel (u will need a dyno to see how rich you are..)

[Kolossus]

Ahk awesome these are the things i need to know (im not overly knowledgeable) i do have a big pod filter on it but i don't know how much more air that would be giving her. Maybe I should do a dyno for a starting point?

[PN-Mad]

Isn't your car a VQ30DD which means direct injection?

VQ35de injectors wont fit, they sit in the intake manifold - not the combustion chamber.

A Performance workshop you seek- and expect to pay a reasonable amount of money for small gains

Things like Intake/exhaust is where you should look.

[sonicii]

^ what he said. The 300gt injectors are totally different to 350gt injectors, as the vq30dd is direct injected. The vq35de is not.

that said, there is no performance benefit at all with fitting larger injectors. In fact it will be detrimental. The only time you would need higher capacity injectors is if your current injectors can't supply enough fuel due to other mods, like turbo/supercharging.

[Kolossus]

Ah ok thanks guys, would a aftermarket ecu give me any gains, also if u had not figured it out yet i dont know a whole lot. Cheers for all the help

[sonicii]

a good quality aftermarket ecu with a custom tune will give some gains. But it is one of the poorest 'bang for you buck' performance mods, especially if you have no other mods. You would be best off starting with intake and exhaust. After you get your injectors sorted.

[..350GT8..]

there is no point changing to a larger injector if your original injectors are not maxed out yet..

[Kolossus]

cool cool. i have a 2.5 inch exhaust and a larger air intake on her, probably just gonna get the injectors cleaned out by the workshop were i get my services etc and maybe run a dyno to see where i stand, would a higher flow cat give me a little more bang and as far as im aware they are not overly expensive