Injector Q. Options

[BudmannG]

I am wanting to know what injectors came in the 2G turbo manuals. I was thinking they were the 510's, is this right. I also talked to someone that thought they were 450,s.
Could someone answer this for me?

As it stands right now I am running 450's in the 1G motor, which is stock. I am just curious to know if I am running the right injectors for this swap to a 2G. Thanks guys!

[natedogg]

Injector size isnt dependant on the size of the turbo but the amount of boost.  However, a turbo will determine how much boost you can run.  In my opinion, you always want to go a little bigger then you need to.  You can always take out fuel but you can only give it as much as the injectors will flow.  And also, I personally wouldnt worry about the ECU issue.  The MAFT is set to your injector size when you set it up and for a street/strip car, it does very well.  Basicially, we need to know what turbo you plan on using for now.  If you want a solid low 13 second car, then run high boost with that 14B and get all the supporting mods or go with moderately high boost with a 16G and the supporting mods.  And dont forget, you can get 1000cc injectors and they wont do a bit of good without a fuel pump and rewire.  Thats the first thing I would do, and maximize the 450's to see what you can do with them.

One really doesn't choose injectors based on boost. 15 psi from a 14b is a LOT different than 15 psi from a GT35 for example. Like Miami said fuel injectors are chosen based on the amount of power one plans on running. To get serious about more power on DSM's is to get a larger turbo, which is, as I said in my original post, capable of more air flow, the true deciding factor. One must choose injectors that will match the air flow (not pressure) the turbo is efficiently capable of. Tuning for power is all about the air/fuel ratio and the timing. The more air and fuel one can ignite in a cylinder at the right ratio, and at the right time, the more power one is going to make.