Extra staged injectors?

[svenspeed]

I know it is possible to add 2 more injectors to my car and run them staged. Ok, is it possible to do this with some smaller ones for high boost applications? Will they even be very effective set up like this? I was more curious than anything. I am running 460's now and they max out around 18-19psi with my vj23. I know I should get bigger injectors, but I was more curious about the staged setup and other options.

-Steve

[therieldeal]

just get some 550's or bigger, it will work great and be way less complicated to set up and tune.

[svenspeed]

as for an FPR if I went to 650's could I still retain the stock FPR assuming the lower FP at that boost level?

-Steve

[therieldeal]

you can run any size injectors with the stock FPR

[Lex]

The tune is key. You can use a standalone to run some extra injectors if you want to keep the stock ECU in there or simply run a standalone and put on whatever injectors you like.

[svenspeed]

I am running standalone and can run up to 2 staged injectors. that is why I am asking. I was wondering what I could do to get the car over 19psi as the tune is doing really well at this point. Running 11.5-12.0 AFR at 19, timing at 16 deg, EGT just a hair under 1250. Short term runs is this ok?

Wondering if at this point I will need to change the fuel rail and FPR also.

-Steve

[Lex]

do you have a knock sensor? If knock checks out you are golden. Water injection might also be something to consider and leaning out the AFRs a little with water injection

[therieldeal]

steve i am running 22-23psi at low 11's AFR and i'm only seeing 85% duty on 550cc injectors

[svenspeed]

Still using the EGT FPR? I thought you had yours upgraded? I am still using the stockers.

What dyno numbers are you getting with 22-23? Besides your DP and external WG, what are the major differences between your engine and mine? As I was going to get mine dynoed here soon and want to see the comparisons.

-Steve

[therieldeal]

stock FPR

its pretty much stock engine from throttle body to turbine housing

waiting for the I&^$%&%@ dyno shop to send me my damn runfiles