Until I can get a coil box and timer setup and junk the dizzy,,do I need a resistor between the coil and hot wire ,if so is there a "size" I need thanks, trying to get it running by show Saturday
No resistor required. The car will run better on 12V than on 6V. Mag. voltage will exceed 12volts in normal operation.
HE IS RUNNING A DISTRIBUTOR.
What coil do you have, what voltage are your running?
6volt vw coil
Good to here someone switching back to the original system.
Ronnie you don't need a resistor if it is a real Bosch 6V VW coil.
Assuming your battery is also 6 volt, you don't need a resistor as long as your generator is not overcharging. What kind of distributor are you taking off and what year coil box do you need? I have a couple of real nice 26-27 boxes and coils ready to install and go.
No resistor is required for a 6V distributor type coil, presuming of course it's being run from a 6V battery.
Some 12V coils do require a resistor. This resistor is usually shorted out during starting to provide a hotter spark.
Not so Keemosabby.
Some 6 volt coils need an external resistor, like Ford V8 cars from '32 through '48.
Model a Fords had the resistor built into the coil like the 6 volt VW.
A 6 volt coil with no resistor will burn the points out in less than a days running.
A Ford V8 with a dual point distributor will last longer.
A 12 volt car with a 12 volt coil and no resistor will fry the points in about 10 minutes or so.
You need not buy a Bo$ch coil, any brand '66 VW coil will do.
Usually less time than that.
Eric it is a texas t unit
A 25 TT
First up you need a resistor. Second up: look closely at your coil. It may be marked "internal resistor" in which case you don't need one because it's already there. If it's not marked it doesn't have an internal resistor. I don't believe they come in differing types for different voltages. A Chrysler ignition resistor from the 1960's will do just fine. About $5. Most vehicles used a by-pass in the ignition switch that sent 12 (or 6) volts to the coil on cranking/start-up then went through the resistor when the key was released for running.