sr20det swap experts

[sepulchral]

i have issues with my electrical system..

under boost the car doesnt have enough voltage to run the fuel pump and bucks, the car dies when gas pedal is not depressed what could be causing this?? coudld it be my shitty lawn and garden $30 battery?? should the alternator support the car when its running?? what am i doing wrong and what do i need to check for?




also i have wirring noise where the clutch is.. i put the clutch on perfect... could the driveshaft be missaligned with the diff?

[707coupe]

yes shitty batter can easily drain voltage, swap with known good bettery. problem can be loose ground. check voltage at fuel pump while driving, see if it drops, or check fuel press under boost, etc.