Injector Swap

[jaketuff]

GAGT Injectors to the Trailblazer Injectors. The flow 32lbs, as opposed to our 26lbs. This will alleviate my lean on 10 psi issue and lean situation I anticipate with the S&S Headers.;)

$52 a pop a gmperformance parts. They will work well with the stock ECU/PCM and I have a tool that can adjust me A/F Ratio as well. The ZZPerformance Mini AFC. (www.zzperformance.com)

*What do you think?

JOUT

[IrateSpeed6]

That sounds very very intriguing. It is probably something I'll have to run into sooner or later... have you used the AFC yet? How precise/tough to tune would you say it is?

Have you put the new injectors in yet? Any word on our stock fuel pump?

[jaketuff]

I am still verifying the bet injectors. The injectors will be around $350. I have an AFC from zzperformance.com

It is a simple circuit board meant for 3 wire MAFs that will tell the PCM/ECU how to dispense fuel. $100 bucks for the unit. Not programmable across the entire RPM band like the ARC. But you can make it lean the car out at the same rate across the entire band. Good enough when leaning out. I will be doing this soon, or maybe around Christmas.;)

Pat

[aleroboy]

Our stock injectors are 26lb an hr? the they can roughly support 249.6 hp at 43.5psi according to msd's formula for that.
at 60 psi our injectors will flow 30.54 lb an hr
which will support 293 hp.
the 36lb would hold 345.6hp at 43psi

[homegrown]

Originally posted by aleroboy
Our stock injectors are 26lb an hr? the they can roughly support 249.6 hp at 43.5psi according to msd's formula for that.
at 60 psi our injectors will flow 30.54 lb an hr
which will support 293 hp.
the 36lb would hold 345.6hp at 43psi

actually...the stockers are 2.843 g/s or 22.56 lb/hr at a static flow of 380 kpa (which is what they are calibrated at)...but whats a couple of lb/hrs these days:)

[SpyhunteR]

I wonder if this would work on a 2.4?


damn.

[homegrown]

Originally posted by SpyhunteR
I wonder if this would work on a 2.4?


damn.


do you know what you injectors look like(brand/style), are they delphi ones, if so are they the "long" or "mini" style. if they are the "long" ones like in the 3.4's, you are set.

[SpyhunteR]

looks like im going to have to take a look.

[aleroboy]

Part number on the trailblazer injectors is 12569573
they list for 50 somthing each from www.gmpartsdirect.com
after shipping htey are like 385 or somthing close to that.:thumbs: