# MSD Street fire ignition coil and distributor cap and rotor **URL:** \ **Category:** General Discussion\ **Created:** [June 1, 2017, 2:15pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537 "2017-06-01T14:15:40Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Devon\_Allision](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/devon_allision/32/6661_2.png) [@Devon\_Allision](https://community.cartalk.com/u/Devon_Allision)\ **Post date:** [June 1, 2017, 2:15pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/1 "2017-06-01T14:15:40Z")
If I am replacing my ignition coil as well as cap and rotor as MSD, do I need am ignition box? ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [June 1, 2017, 3:53pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/2 "2017-06-01T15:53:39Z")
Huh?? What engine is this on and what are you doing to it? Replacing the distributor cap and rotor to an MSD brand and replacing a stock coil with an MSD coil. Nope, neither require an MSD electronic ignition unless you are changing the points or pickup to an MSD pickup. ---
**Author:** ![BillRussell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/billrussell/32/3179_2.png) [@BillRussell](https://community.cartalk.com/u/BillRussell)\ **Post date:** [June 1, 2017, 4:05pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/3 "2017-06-01T16:05:11Z")
MSD? Maryland School for the Deaf? Merck Sharp and Dohme? Motor Sports Developments? Marine Sanitation Device? Moscow Summer Time? Mass Service Disruption? ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [June 1, 2017, 4:55pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/4 "2017-06-01T16:55:00Z")
Multiple Spark Discharge ---
**Author:** ![BillRussell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/billrussell/32/3179_2.png) [@BillRussell](https://community.cartalk.com/u/BillRussell)\ **Post date:** [June 1, 2017, 5:09pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/5 "2017-06-01T17:09:20Z")
aha… thanks ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [June 1, 2017, 6:24pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/6 "2017-06-01T18:24:03Z")
Unless you do all out racing and live in the very high RPMs territory you don’t even need any MSD components. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [June 1, 2017, 6:36pm UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/7 "2017-06-01T18:36:52Z")
MSD is a brand name for aftermarket ignition systems and parts. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [June 2, 2017, 1:38am UTC](https://community.cartalk.com/t/msd-street-fire-ignition-coil-and-distributor-cap-and-rotor/104537/8 "2017-06-02T01:38:27Z")
If you are swapping from conventional ignition to MSD, sometimes there’s an issue w/the ballast resistor in the coil primary circuit. The instructions should explain what you need to do.