My understanding of alternators and the charging system in general is limited, but iirc the reason we went with a one wire setup in my son's Bird was because with the battery in the trunk and a shut off switch mounted on the rear tail light panel, when the switch is turned off then current from the battery as well as the alternator is also shut off. This is important in an accident situation where the engine might still be running and the alternator still sending current to the electric fuel pump. Even if none of the fuel lines were compromised in the wreck you don't want the fuel pump running. So, my question is can the 3-wire system be setup in the same way so that at the flip of a switch, one that is easily accessible to the track safety crew, the current from the alternator is in essence disabled?
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car.
79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet.
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