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oldman · 06-18-2018, 08:21 PM

When I put my new cam with 32% lobe, the vendor and I were both surprised at how much fuel had to be take out of the injector. I spent a while making sure I was getting a full stroke. So the stock lt1 pump really can supply a whole lot of fuel if shimmed correctly with a bigger lobe cam. My thinking is there is a good bit of slop on the stock fuel lobe to pump..

06-18-2018, 08:21 PM	#6
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,346	When I put my new cam with 32% lobe, the vendor and I were both surprised at how much fuel had to be take out of the injector. I spent a while making sure I was getting a full stroke. So the stock lt1 pump really can supply a whole lot of fuel if shimmed correctly with a bigger lobe cam. My thinking is there is a good bit of slop on the stock fuel lobe to pump.. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.