What Fuel Injectors are on the ZR1?
12-02-2008, 11:22 AM
#1
What Fuel Injectors are on the ZR1? Tuning for different fuel injectors has always been a pretty gray area. Most larger injectors (none that I know off for our application) come with any information regarding min/max pulse width or offset values. SO I was sitting around thinking and then I thought of the new ZR1. Surely this thing must have atleast 42#'ers or bigger. If we can read the PCM, all the values are there to be had. So, does anyone know what size injectors come from the factory on the ZR1 and are they (or can they be made) compatible with 3rd gen injector rails and harness?
12-02-2008, 04:11 PM
#2
I was able to find something that said that the new ZR1 is running a 48 lb/hr inj. Unfortunately it goes on to say that the new ZR1 has a dual mode fuel system that goes from 250 KPA to 600 KPA depending on throttle position. It doesnt say if they are 48#'s at 43.5 PSI or 60 PSI. Anyone one with some info, it would be appreciated. Also, will they even work with an Fbody PCM?
12-02-2008, 11:13 PM
#4
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very good info, that would make them a 49lb injector @ 3bar.
I'm gonna assume they are the Bosch Design IV like the LS2,3,7 uses. If thats the case we are ready for those pulley swaps with sizes of 73lb @ 4 bar already available.
I'm gonna assume they are the Bosch Design IV like the LS2,3,7 uses. If thats the case we are ready for those pulley swaps with sizes of 73lb @ 4 bar already available.
