Precision Raceworks N55 Ignition Kit

$479.99
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THE MOST POWERFUL IGNITION SYSTEM THE N54 COMMUNITY HAS EVER SEEN!

 

 

 

 

 

Our complete ignition system is designed to replace the factory pencil style coils which are prone to failure and incapable of properly supporting the needs of high horsepower applications. Our kits all comes complete with new ignition coils designed in house and manufactured to our specifications based on the needs and capability of the N55engine.  

 

 

 

Before now the only solutions for the N55 community were all pencil style coils which are incapable (due to size limitations) of producing the same output as larger Ignition Block style coils.  To make the best of the small package the pencil coil has, they are designed for high voltage output but very low current output.  This means the spark will bridge the gap on the spark plug and then disappear.  There is no duration to the spark and in the event the fuel does not ignite (or ignite fully) in that very short period of time you will have a misfire or incomplete burn.

 

 

 

 

 

Because of the constraint of space to put components in a pencil coil reliable and proven ACDelco ignition coils(PN D585 / LS Truck Coils) paired with short plug wires are used in high horsepower applications everywhere. So why didn’t we just make a kit using these coils since they are the “standard” in many high horsepower applications?  

 

    • Your car is specifically designed to run “Dumb Coils” and the ACDelco coils are “Smart Coils”

 

This leaves four options for adapting the car to work with them

 

  1. Remove the factory DME and replace with Standalone system

 

      - Very costly & you lose some factory functions

 

 

 

  1. Remove the factory DME and change circuitry of the board to control “Smart Coils” instead of “Dumb Coils” 

 

- Not a plug and play solution you can do at home, requires sending off your factory DME for custom work

 

 

 

  1. Add additional electronics to convert the IGBT output from the factory DME  back to 5V square wave to drive the “Smart Coils”

 

 The factory system only has 1 IGBT system that can fail this solution has two IGBT systems that can fail, plus an additional converter box that can fail as well.  This results in 3 possible failure points.  In addition the DME no longer can “see” the coils which could cause other potential problems with how the computer is designed to monitor and react.

 

 

 

  1. Use the IGBT negative output and constant power with resistor to drive the IGBT inside the "smart coil" backwards

 

 As above the factory system only has 1 IGBT system that can fail this solution has two IGBT systems that can fail, plus a resistor which heats up and can fail as well.  This results     in 3 possible failure points.  In addition the DME no longer can “see” the coils which could cause other potential problems with how the computer is designed to monitor and react.

 

-  Flashing of the DME to suppress errors caused by using "Smart Coils" in place of "Dumb Coils" is required

 During testing of this approach it was found that the ignition coil produced about 1/2 of its original capability

 Testing also showed an increased stress on the IGBT in the coils increasing the failure rate and overall longevity of the coil

 

 

 

    • The ideal dwell time (calculated based on Duty cycle, RPM, and Duration) plays a big role in selecting the right ignition coil in any application

 

The maximum dwell time of 3.5ms is a fixed value for the N55 engine (allowing headroom for built motors turning more RPM)

 

  1. The ACDelco coil has an ideal dwell time of close to 4.5ms

 

 Since the ACDelco coil would only be allowed a maximum charge time of 3.5ms the output is greatly reduced to 90mj while the Precision Raceworks coil is capable of 118mj

 

 

 

So not only as explained above using a “SmartCoil” isn’t a great idea on the N55 as it is not designed for it you also need to consider the ideal dwell time allowed  by the car and the design of the coil when making the proper selection.  We have also included the quick reference chart below to better understand performance of the LS coil, OEM coil, PR coil,and for fun Lamborghini coil.  Showing that there is no standard each coil is designed to work within specific calculated dwell periods so the correct coil must be selected or designed for each application.

 

 

 

  •  Why choose Precision Raceworks

 

By designing our own coil we were able to take into account the available dwell time of the N55 as well as the IGBT system being built into the DME.  We were even able to take into consideration the ohm load of the factory BMW coil that came in the N55.  What this means is our coil looks exactly like the factory coil to the DMEmaintaining all functions allowing the computer to monitor and react as designed by the engineers at BMW.



  • Summary

 

o  Precision Raceworks coils are designed specifically for your car

 

 DME Flashing Not Required 

 

 

o  Designed for optimal dwell time available

 

o  More energy output than any other coil tested 

 

250% more energy than the BMW coil pack 



Precision Raceworks N55 Ignition Kit

  • Brand: Precision Raceworks
  • Product Code: 601-0021
  • Cashback: $14.40
  • Availability: Out Of Stock
  • $479.99

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