Join Date: Mar 2002
Location: Austin, TX, USA
Re: Basic wiring of a test stand:
The 'S' on the solenoid is start (crank). The 'R' is to feed 12 volts to a breaker point ignition or to supply power during crank on vehicles like the 67 camaro whose IGN circuit does not remain hot during crank. 'R' is unused if your using HEI and your IGN terminal on the ignition switch remains connected to the BAT line of your switch. I'd do a continuity check between your BAT(a) terminal and your IGN (c) terminal while your turn the key to crank just to be sure you can live without 'R'.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI