....then be sure to read this first!
The following dialog is an excerpt of a dialog between myself and the MSD technical support department:
: "I just purchased a Blaster 2 for a 1987 Turbo charged Dodge Shelby Charger. Three questions: I have been told that the Blaster 2 needs to be mounted in a vertical position only, not on it's side with the terminals elevated about 20* such as the OEM mounting would have it. Is vertical mounting a requirement? 2. I am told the OEM coil that I am replacing has an internal ballast resistor, told by several Chrysler certified techs familiar w/these cars. Is the Blaster 2 #8202 require an externally mounted ballast resistor to be compatible w/this model car? 3. If external ballast is a requirement, what, if any, problems may result from running w/o the external ballast. Many of the owners of these cars are running them w/o the external ballast. Thanks in advance, Steven "
MSD Tech Response:
1) The 8202 should be mounted no more than 45º degrees from vertical.
2) Yes, you will require an external ballast resistor.
3) Running with out the ballast will result in damage to the signaling device in the distributor.
So if you are running an MSD Blaster 2 w/o a balast resistor then you should be running a ballast resistor if its a turbo car w/electronic injection! If it's mounted in the stock coil bracket and lying down, it needs to be moved to the vertical or no less than 45* from vertical, if you seem to be going through HEPs...then guess we know the cause.