440cc Injectors Good Idea With My Mods?

[SirLoki]

What does it raise the boost cut level to?

the boost cut level is determined by the ecu.... stock fuel cut on the jdm 2jzgte ecu is 15 psi

 

[Bondango]

the boost cut level is determined by the ecu.... stock fuel cut on the jdm 2jzgte ecu is 15 psi

Loki the Ausy soarer guys having been doing this mod for years, Jspec 440cc+2jz map, fuel cut is 18psi.

 

[SirLoki]

Loki the Ausy soarer guys having been doing this mod for years, Jspec 440cc+2jz map, fuel cut is 18psi.

my apologies, my boost guage is probably off then.... old hks

 

[honestabe]

my boost guage is probably off then.... old hks

We all know what that means, an excuse to upgrade.

 

[HIDPLANET]

good info. I have a set of flowed and cleaned 440's that I need to pick up from Jose, and I already have a 2JZ MAP ready to go.

 

[OneJoeZee]

Charles, by the time you get around to actually putting those things to use, there won't be any gas powered vehicles left on the road. :rofl:

 

[SirLoki]

We all know what that means, an excuse to upgrade.

haha naw im still looking for a set of orange hks guages in 40mm

 

[slidingsidewayz]

Loki the Ausy soarer guys having been doing this mod for years, Jspec 440cc+2jz map, fuel cut is 18psi.

that's what i've been hearing about that combo, but i have that same mod and still i'm hitting fuel cut around 1 bar.. how is it that you guys are hitting it at 16/18 psi?

 

[SirLoki]

that's what i've been hearing about that combo, but i have that same mod and still i'm hitting fuel cut around 1 bar.. how is it that you guys are hitting it at 16/18 psi?

you know i took my car around the block again and i swore it hit fuel cut at 1.1 bar.... but i am running an Aristo 2jzgte ecu..... could my ecu have the roughly 15-16psi fuel cut?

 

[slidingsidewayz]

im not sure bro, i keep hearing different facts about these 2jz map w/ 440 jdm injectors but it only raised it by a 1lb

 

[masterchief819]

I don't know how credible this is, but I was once told that injectors are good up to the hp of their cc. (i.e. 370cc good for around 370hp etc.)

Anyone wanna confirm or disprove this?

 

[honestabe]

Funny you should say that because based on everything that people have said about HP and injector size seems to correllate with what you heard.

Adam

 

[OneJoeZee]

I don't know how credible this is, but I was once told that injectors are good up to the hp of their cc. (i.e. 370cc good for around 370hp etc.)

Anyone wanna confirm or disprove this?

You should never run an injector up to 100% duty. 370s would not be good for 370hp. 440s would be good for 370s. I think the acceptable level is 80%. Any more than that and you can be playing with fire.

Not only does running injectors on the edge leave chance for failure of the injectors but also, you have no where to go should you experience boost spike or boost creep.

What happens when you're running on a cold night and your boost creeps up higher than normal? No extra fuel to cover your ass. People lose engines that way.

Although you are right when dealing with Supras, the CC to hp correlation is close. I think this holds true for 6cyl engines though. Not sure about others... 6 440cc injectors for a 1J and 4 440cc injectors for some other 4cyl engine is different.