If I where to drill ou the rail fitting, what size should the opening be drilled out to? I've seen a bunch of different numbers thrown around in doing some reading...
LBZ: Porting rail fitting
- Thread starter Cougar281
- Start date
I know these are not as precise but I went with 1/8 on the driver's and1/16 with the passenger side.
Thats what most do I think, most people just have drill bits from lowes or sears and you don't find .060 and .090 in those 29 piece sets. I need to do mine too but I fail everytime trying to loosen the line nut
on the trucks i have done 9/64 drivers side and 1/16 passenger.
for the trucks (lb7s) that the pass side does not feed off the drivers i do 1/16 for both.
for the trucks (lb7s) that the pass side does not feed off the drivers i do 1/16 for both.
Is there any point to porting the PS fitting when the orifice on the DS rail that feeds the PS rail is also tiny?
so on an LBZ do you need to drill that one to?? I changed my driverside to the PPE fuel fitting? So should i do the PS or no??
actually i was wondering the same thing?? Right where the fuel line comes out of the fuel filter housing its half inch...right?? Then it goes to the fuel pressure test port and divides into two seperate lines, one goes to the CP3, where does the other line go??? Cause i was looking to open up all the lines to 3/8, but i dont know where the other line goes?
so on an LBZ do you need to drill that one to?? I changed my driverside to the PPE fuel fitting? So should i do the PS or no??
If your running the Ppe porter race fitting this is already done.
It Ts off to the test port and the other goes to the cp3 iirc
the cp3 inlet port is only 10 mm so u would have to. Clamp a 1/2" 12.7 mm hose onto it or run a A/N fitting.
You would need to either run the flex hose kit from ind injection or find a place that will bendthe pipe.
Good luck on finding a place to bend fuel line!
Were it comes from the filter to the test port. The top line feeds the cp3 the low very small line is the return off the injectors.