TD04L set up and 330 cc injectors

[Nano]

hi everyone, i ve been running ct9 over 2 years now and i ll be upgrading to TD04 soon @ 1bar.
If i want to use bigger injectors ie 330 cc, where can i get them from? which toyota?
and so it means i will need a piggyback?
Thanks

 

[bongskag]

please check the helpful information section . it is under

Forum > Specific Forums > The Awesomely Helpful Info Section > Engine / Fueling / Turbo

heres the quick link to interchangeable injectors, easy enough to find in the info section ..
HAPPY BOOSTING !
Interchangelable-Injectors-

 

[Nano]

I found light green top 315cc, is this ok? or better get a 330cc?

 

[bongskag]

not much difference between 315cc and 330cc, increasing the fuel pressure would make your 315cc injectors flow 330cc

I ran the 315cc injectors with stock ecu , and rising rate fuel pressure regulator. fueled fine at 0.8 bar on td04 , you will hit boostcut at more than 0.89bar on the stock ECU , you will need an FCD or a emanage etc , to get more than 0.89bar

 

[Nano]

thats cool then...But did you have 15afr @idle or did it ran richer with the 315cc and more fuel pressure?

not much difference between 315cc and 330cc, increasing the fuel pressure would make your 315cc injectors flow 330cc

I ran the 315cc injectors with stock ecu , and rising rate fuel pressure regulator. fueled fine at 0.8 bar on td04 , you will hit boostcut at more than 0.89bar on the stock ECU , you will need an FCD or a emanage etc , to get more than 0.89bar

 

[ChrisD]

There's no point going for 330 injectors... Use stock and increase fuel pressure.

The stock ecu will run most injectors at 14.7 idle and cruising, as it's on close loop.

 

[Nano]

So Chris stock injectors, stock ecu and more fuel pressure is enough for a td04@1bar as long as i have a fcd?

There's no point going for 330 injectors... Use stock and increase fuel pressure.

The stock ecu will run most injectors at 14.7 idle and cruising, as it's on close loop.

 

[bongskag]

thats cool then...But did you have 15afr @idle or did it ran richer with the 315cc and more fuel pressure?

315cc isnt a big increase , it would run a few points richer . plenty of people running them. but ChrisD is right , stock injectors are fine for 1.0bar on a TD04. no point buying bigger unless your planning on bigger boost in the future

 

[Nano]

thanks guys

315cc isnt a big increase , it would run a few points richer . plenty of people running them. but ChrisD is right , stock injectors are fine for 1.0bar on a TD04. no point buying bigger unless your planning on bigger boost in the future

 

[ChrisD]

1bar on TD is about 220hp? Should be on the limit of stock injectors, even with light increase in fuel pressure.

But bigger injectors like 440cc will need some sort of management. Maybe a safc will manage it.

 

[Nano]

u ve just said stock injectors is ok. Anyway i have a wide band. i ll try steps by steps

1bar on TD is about 220hp? Should be on the limit of stock injectors, even with light increase in fuel pressure.

But bigger injectors like 440cc will need some sort of management. Maybe a safc will manage it.

 

[ChrisD]

Maybe I didn't put it correctly. The stock injectors, even with slight pressure increase, will operate at very high duty cycle, so it's not the best for them.

But try increasing the pressure and monitor with the wideband