{"product_id":"precision-raceworks-bmw-plug-and-play-ignition-system-n54","title":"[Old] Precision Raceworks BMW N54 Plug and Play Ignition Coil System (1M, 135i, 335i \u0026 Z4)","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThis 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. The kits all come complete with new ignition coils designed in house and manufactured to our specifications based on the needs and capability of the N54 engine. \u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003eBefore now the only solutions for the N54 community were all pencil style coils which are incapable (due to size limitations) of producing the same output as larger Ignition Block style coils. \u003cspan\u003e \u003c\/span\u003eTo make the best of the small package the pencil coil has, they are designed for high voltage output but very low current output. \u003cspan\u003e \u003c\/span\u003eThis means the spark will bridge the gap on the spark plug and then disappear. \u003cspan\u003e \u003c\/span\u003eThere 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.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003e\u003cstrong\u003ePlease Note: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv id=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003csection class=\"LayoutMiddle row\"\u003e\n\u003csection class=\"LayoutContent col-sm-9\"\u003e\n\u003cdiv class=\"LayoutContentInner\"\u003e\n\u003cdiv itemtype=\"http:\/\/schema.org\/Product\" itemscope=\"\"\u003e\n\u003cdiv class=\"well\" id=\"prod-wrap\"\u003e\n\u003cdiv class=\"tab-content\" itemprop=\"description\"\u003e\n\u003cdiv id=\"desc1\" class=\"tab-pane pad-20 no-pad-lr active\"\u003e\n\u003cp\u003eFor the OEM location kit, the ignitions coils will not be relocated.\u003c\/p\u003e\n\u003cp\u003eThe Aftermarket Manifold location kit is designed for relocation of the ignition coils onto aftermarket inlets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-weight: 400;\"\u003eFor the relocation kit on the OEM manifold side, you will need the \u003cspan style=\"text-decoration: underline; color: #2b00ff;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.mlperformance.co.uk\/products\/precision-raceworks-bmw-n55-ignition-kit\" title=\"PRECISION RACEWORKS BMW N55 IGNITION COILS (M2, 135I, M135I, M235I, 335I \u0026amp; 435I) - ML Performance UK\" style=\"color: #2b00ff; text-decoration: underline;\" target=\"_blank\"\u003ePR N55 BMW Ignition Kit\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-weight: 400; text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline; color: #0000ff;\"\u003e\u003ca href=\"http:\/\/www.precisionraceworks.com\/image\/catalog\/N5X%20Ignition%20System\/PR%20Vs%20Stock%20Coil.jpg\" style=\"color: #0000ff;\" title=\"Precision Raceworks BMW N54 Plug and Play Ignition System (135i \u0026amp; 335i) ML Performance UK\" target=\"_blank\"\u003e\u003cstrong\u003eClick to Enlarge\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003ca href=\"http:\/\/www.precisionraceworks.com\/image\/catalog\/N5X%20Ignition%20System\/PR%20Vs%20Stock%20Coil.jpg\" title=\"Precision Raceworks BMW Plug and Play Ignition System N54 ML Performance UK\" target=\"_blank\"\u003e\u003cimg alt=\"Precision Raceworks BMW Plug and Play Ignition System N54 ML Performance UK\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/PR_Vs_Stock_Coil_1024x1024.jpg?v=1530709114\" style=\"float: none;\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBecause 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? \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour car is specifically designed to run “Dumb Coils” and the ACDelco coils are “Smart Coils”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis leaves four options for adapting the car to work with them\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003eRemove the factory DME and replace with Standalone system\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e     \u003cspan\u003e \u003c\/span\u003e- Very costly \u0026amp; you lose some factory functions\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003eRemove the factory DME and change circuitry of the board to control “Smart Coils” instead of “Dumb Coils”\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e- Not a plug and play solution you can do at home, requires sending off your factory DME for custom work\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003eAdd additional electronics to convert the IGBT output from the factory DME \u003cspan\u003e \u003c\/span\u003eback to 5V square wave to drive the “Smart Coils”\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e- \u003cspan\u003e \u003c\/span\u003eThe 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. \u003cspan\u003e \u003c\/span\u003eThis results in 3 possible failure points. \u003cspan\u003e \u003c\/span\u003eIn 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.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003eUse the IGBT negative output and constant power with resistor to drive the IGBT inside the \"smart coil\" backwards\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e- \u003cspan\u003e \u003c\/span\u003eAs 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. \u003cspan\u003e \u003c\/span\u003eIn 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.\u003c\/p\u003e\n\u003cp\u003e-  Flashing of the DME to suppress errors caused by using \"Smart Coils\" in place of \"Dumb Coils\" is required\u003cbr\u003e\u003cbr\u003e- \u003cspan\u003e \u003c\/span\u003eDuring testing of this approach it was found that the ignition coil produced about 1\/2 of its original capability\u003cbr\u003e\u003cbr\u003e- \u003cspan\u003e \u003c\/span\u003eTesting also showed an increased stress on the IGBT in the coils\u003cspan\u003e \u003c\/span\u003eincreasing the failure rate and overall longevity of the coil\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe ideal dwell time (calculated based on Duty cycle, RPM, and Duration) plays a big role in selecting the right ignition coil in any application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe maximum dwell time of 3.5ms is a fixed value for the N54 engine (allowing headroom for built motors turning more RPM)\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003eThe ACDelco coil has an ideal dwell time of close to 4.5ms\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e- \u003cspan\u003e \u003c\/span\u003eSince 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\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSo not only as explained above using a “SmartCoil” isn’t a great idea on the N54 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. \u003cspan\u003e \u003c\/span\u003eWe 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. \u003cspan\u003e \u003c\/span\u003eShowing 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.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eWhy choose Precision Raceworks?\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBy designing our own coil we were able to take into account the available dwell time of the N54 as well as the IGBT system being built into the DME. \u003cspan\u003e \u003c\/span\u003eWe were even able to take into consideration the ohm load of the factory BMW coil that came in the N54. \u003cspan\u003e \u003c\/span\u003eWhat this means is\u003cspan\u003e \u003c\/span\u003eour 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.\u003c\/p\u003e\n\u003cp\u003eSo these coils have\u003cspan\u003e \u003c\/span\u003e250% more output than the factory coils\u003cspan\u003e \u003c\/span\u003ewhat does that mean for my DME as they are already prone to heat issues and component failures?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput is directly related to input current and time so let’s look at the math below using the given information from the chart above.  We will use saturation dwell as this is the maximum output (the hardest the coil can work)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBMW \u003cspan\u003e \u003c\/span\u003eCoil - 7.425amps \/ 2.7ms dwell \u003cspan\u003e \u003c\/span\u003e= 2.75a per ms\u003c\/p\u003e\n\u003cp\u003ePR Coil - \u003cspan\u003e \u003c\/span\u003e9.045amps \/ 3.7ms dwell = 2.44a per ms\u003c\/p\u003e\n\u003cp\u003eFor additional information we have provided the ACDelco and Lamborghini as well to see how they would react and load our system.\u003c\/p\u003e\n\u003cp\u003eACDelco Coil – 6.75amps \/ 5ms dwell = \u003cspan\u003e \u003c\/span\u003e1.35a per ms\u003c\/p\u003e\n\u003cp\u003e*Lamborghini Coil - \u003cspan\u003e \u003c\/span\u003e16.2amps \/ 2.5ms dwell = 6.48a per ms\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*This would result in 236% more strain on our electrical system if used requiring upgrades to other components to be stable\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSo as  you can see while the PR coil pulls more current to have higher output it is capable of doing it over a longer period resulting in less load on the electrical system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Resistance Matched (DME Flash through MHD provides additional performance)\u003c\/li\u003e\n\u003cli\u003eDME Flashing Not Required (DME Flash through MHD provides additional performance)\u003c\/li\u003e\n\u003cli\u003eDesigned for optimal dwell time available\u003c\/li\u003e\n\u003cli\u003eMore energy output than any other coil tested under 3.7ms\u003c\/li\u003e\n\u003cli\u003e250% more energy than the BMW coil pack (With Out flashing the DME the PR coils put out 200% more the Factory BMW Coils!)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv dir=\"ltr\"\u003eAll of our kits come with: \u003c\/div\u003e\n\u003cdiv dir=\"ltr\"\u003e\n\u003cul\u003e\n\u003cli\u003eAppropriate bracket\u003c\/li\u003e\n\u003cli\u003eHardware (nuts\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003ebolts)\u003c\/li\u003e\n\u003cli\u003eCoils\u003c\/li\u003e\n\u003cli\u003eSpark plug wires\u003c\/li\u003e\n\u003cli\u003eCoil power harnesses \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAll BMW with the N54 engine including E82 1M, E89 Z4 35i, E82\/E88 135i \u0026amp; E90\/E91\/E92\/E93 335i\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility Check\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eTo ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrecision Raceworks\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/PR-N54-C_-1_1024x1024.jpg?v=1586601298\" alt=\"Precision Raceworks BMW N54 Plug and Play Ignition System (1M, 135i, 335i \u0026amp; Z4) - ML Performance UK\" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/PR-N54-C_-2_1024x1024.jpg?v=1586601317\" alt=\"Precision Raceworks BMW N54 Plug and Play Ignition System (1M, 135i, 335i \u0026amp; Z4) - ML Performance UK\" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Precision Raceworks n54\/n55 ignition kit installation guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/9iv4UOEarcc\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstall Video 2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/v4oVvvGnNAA\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Video\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ZP-N9RGcdpI\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e","brand":"Precision Raceworks","offers":[{"title":"Black \/ Stock Location","offer_id":61999496790403,"sku":"601-0107","price":475.99,"currency_code":"GBP","in_stock":true},{"title":"Black \/ OEM Manifold","offer_id":61999496823171,"sku":"601-0108-1","price":647.99,"currency_code":"GBP","in_stock":false},{"title":"Black \/ Aftermarket Manifold Relocation (Masata \/ Sharp Customs)","offer_id":61999496855939,"sku":"601-0150","price":647.99,"currency_code":"GBP","in_stock":false},{"title":"Blue \/ Stock Location","offer_id":61999496888707,"sku":"PR-N54-C","price":647.99,"currency_code":"GBP","in_stock":false},{"title":"Blue \/ OEM Manifold","offer_id":61999496921475,"sku":"601-0021-1","price":647.99,"currency_code":"GBP","in_stock":false},{"title":"Blue \/ Aftermarket Manifold Relocation (Masata \/ Sharp Customs)","offer_id":61999496954243,"sku":"601-0149","price":647.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/6506\/2787\/files\/PRECISIONRACEWORKSBMWN54PLUGANDPLAYIGNITIONSYSTEM_1M_135I_335I_Z4__01_eb7670b0-1f6c-448d-9161-a830eeaed3dd.jpg?v=1784058551","url":"https:\/\/www.mlperformance.co.uk\/products\/precision-raceworks-bmw-plug-and-play-ignition-system-n54","provider":"MLP","version":"1.0","type":"link"}