Ok here we go. I just want to know if this sounds right. A afpr will increase my fuel pressure to the injectors up to a certain point then it will stop a once the valve is closed all the way. Meaning the vacuum will close the valve completely before it gets to wot and not supplying anymore fuel. Right? With bigger injectors I will get a constant increase in flow until wot, considering the ecu is tuned. Does that sound right? In this case wouldn't it be better to go with bigger injectors and a tune to add some longevity to the fuel pump, injectors ect?

afpr ends up being abused as a band aid for fueling issues.

If your car is demanding more fuel, get larger injectors and retune the PCM's injector constant for them.


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

AFPR can be used both ways. Most people use(d) the AFPR to lower the fuel pressure with larger injectors (at least they did before we had a real tuning solution)...not as a replacement for larger injectors.


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"Youth in Asia"...I don't see anything wrong with that.