Houpty GT
Veteran Member
This was the only thread I found about staged flow settings that certain vendors are selling.
http://forums.tdiclub.com/showthread.php?t=448355&highlight=injector+nozzle+flow+setting
1. shims controlling spring preloads. Reducing the cracking pressure for the main injection so it opens sooner and closes later. This makes sense since they say, "fuel delivery will occur over a slightly longer period of time."
2. spring stiffness. Changing to a different spring so that the needle will lift higher and longer but not sooner.
Would be the same deal with the increased pilot injection?
Has anyone eliminated their pilot injection for more power or economy? I recall it was worth 3 or 5% in some scientific journal.
See this thread on information on diesel injector function and some discussion on removing the pilot injection: http://forums.tdiclub.com/showthread.php?t=352275
http://forums.tdiclub.com/showthread.php?t=448355&highlight=injector+nozzle+flow+setting
So what changes are these flow settings? Since they make no changes to the nozzles and they can not control the pump, that leaves them withThe Kerma description of the stages are a little different ....
STAGE 1- LOW SMOKE FOR CLEANEST OPERATION [ IDEAL FOR STOCK OR LIGHTLY MODIFIED VEHICLES, OR FOR MODIFIED VEHICLES SEEKING BEST FUEL ECONOMY ]
STAGE 2 - LOW SMOKE FOR TUNED VEHICLES
PLEASE NOTE: STAGE 1 IS THE MOST POPULAR SETTING AND WE CAN ALWAYS RECALIBRATE
STAGE 3- FOR VEHICLES WITH TURBO, TUNE, CLUTCH AND ALSO EXHAUST, CAMSHAFT, AND INTERCOOLER UPGRADES
PLEASE NOTE: STAGE 1 IS THE MOST POPULAR SETTING AND WE CAN ALWAYS RECALIBRATE
STAGE 4 - FOR VEHICLES WITH ALL OF THE ABOVE AND FULL UPGRADES INCLUDING CAMSHAFT, EXHAUST, INTAKES AND CYLINDER HEAD WORK HIGHER SMOKE, REDUCED MPG'S AND NOT FOR DAILY DRIVERS
STAGE 5 - EXTREME CUSTOM SETTINGS FOR VERY HIGHLY MODIFIED VEHICLES
1. shims controlling spring preloads. Reducing the cracking pressure for the main injection so it opens sooner and closes later. This makes sense since they say, "fuel delivery will occur over a slightly longer period of time."
2. spring stiffness. Changing to a different spring so that the needle will lift higher and longer but not sooner.
Would be the same deal with the increased pilot injection?
Has anyone eliminated their pilot injection for more power or economy? I recall it was worth 3 or 5% in some scientific journal.
See this thread on information on diesel injector function and some discussion on removing the pilot injection: http://forums.tdiclub.com/showthread.php?t=352275
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