94RedDevil

I was just wondering if you had to have the rpm module connected in the MSD box to start the car. I have the box all hooked up, i dont have the rpm modules, i turned the car over and it just cranks. Also, do you have to hook up a tach to it??

mjr46

if you are using a factory tach ..you'll need the tach adapter..if using an aftermarket you can use the lead that plugs into the box

94RedDevil

will the car not run if i dont use the tach adapter or use an aftermarket?? What about that chip??

mjr46

car will run just rpm limiter will be disabled..no tach is needed to make box work

94RedDevil

ok, let me ask you this then. There are 5 wires that come out of it that are connected to the car. I am running an msd distributor. The box is hooked directly to the distributor. It has a thick red going to the battery positive. A thick black to the ground. A thin black going to the coil (-). A thin red going to the coil (+). And finally, a red going to the ignition. Correct?? If those are all right, then i'm 180 out on my timing

mjr46

yup that should be it and I ran out and pulled my pill and it still started so I'm 100 percent positive on that...anyway check timing and make sure your on tdc on number 1 ..pull plug and bump motor over and when you feel compression come out then remove cap and rotor should be relatively close to pointing at number 1 on cap..if not restab dizzy