We finished the build and installed the engine into the boat. Now we're trying to get the engine to idle. Can a blower motor idle at 1100 to 1500?
We can get the engine to idle at 2500 to 3000 but anything under that and it stalls
Here is what we working with,
6-71 blower running -8.3 underdriven on a BBC 515 with 2 Holly 4150 850 Mechanical secondary carbs. No chokes. Power Jets blocked off. Jetted 72 primary 70 secondary. Fuel pressure at 7 lbs. MSD 6al box 6k pill w/ MSD Marine Dist. Timing at idle is set at 20° advanced (ran smoothest at this point), 32 total. When I gun the engine, the timing doesn't move past 32° total.
Plugs were soot black. Electrode was tan. Insulator base was black.
Can a blower motor idle at 1100? Am I wasting my time trying to achieve this? I know once I install the pump and get it in the water I'm going to loose a few hundred RPMs but at 2500 to 3k I'm asking for a no wake ticket.