Precision Raceworks is proud to announce the upcoming release of yet another product
Plug and Play Ignition Coil upgrade!
We have data going back over a year on these coils and testing under many conditions. These are NOT an off the shelf coil, they are designed in house and manufactured to our specifications. They look similar to the AEM “Dumb Coils” or the IGN-1 coils as well due to the fact we all based our coil design off the same Mercury Boat coil. There are also CDI versions of this coil (please do not use them by mistake!)
While we considered and tested MANY off the shelf coils including the popular LS Truck coil and other smart coils this truly is the best coil possible for your BMW.
Coils are all designed with goals in mind, short duration coils have very low ohm loads (<0.3ohm) so they draw current quickly to saturation and discharge quickly making them great for high revolution motors. You commonly find these in your more exotic cars such as Lamborghini’s, Ferrari's, and other high rev sport cars. This is necessary for cars running above roughly 8,000RPM red line. These cars have less time to charge due to the higher RPM and shorter time to discharge as well. In addition they must maintain duty cycles low enough to not cause premature failure due to excess heat buildup. The downside is you get a very short spark duration with very low current output from secondary winding but in this high of RPM that is all there is time for.
On the opposite end of the spectrum you have your popular LS Truck coils which have very high ohm loads (1ohm). These coils are capable of great dwell time, great spark duration, and high current output from secondary winding. However with these coils taking so long to charge to saturation by design they would never be able to charge before being fired in a high RPM car such as the ones mentioned above. For this reason these coils are ideal, for lower RPM cars such as push-rod V8’s and muscle cars.
We decided with the standard 7,000 red line of the N54 & N55 motors which are generally tuned to a maximum of 7,500 red line the BMW community could benefit greatly from a coil designed specific for them. You are able to obtain the right dwell time to charge the coil while still maintaining a very low duty cycle resulting in extremely long lasting coils (With tuning changes to spark control such as single spark 8,000 RPM can be met with full dwell on race builds). You are able to benefit from extended spark duration ever so slightly shorter than that of the LS Truck coil at the same ideal 3.5ms dwell time your car needs. At this dwell time you put out 2.68x the amount of current the LS coil puts out at 3.5ms dwell.
In addition our coils are designed with .5 ohm primary resistance to match the .5 ohm primary resistance of the factory BMW ignition coil that came in your car. To your DME our coil looks exactly like the stock coil. You will get all of the same information the DME monitors just as if it was the factory coil. This also means you do not need additional electronics like you would for running a smart coil such as the LS or other smart coils on the market.
Since the ideal dwell for our coils is 3.5ms and OEM coil dwell time is 2.4ms we have teamed up with @[email protected] providing all the tables to offer a simple flash solution. This solution increases dwell, disables emissions tables that only limit charge time & generate extra heat in the coil. These changes also decreases demand on components within the DME. By disabling these emission sparks you also extend the life of both your ignition coil and plug. What this means is you get a solution that functions like factory, has very minimal points of failure, is very efficient, but performs as well at idle as it does cranking out 1,000+ whp!
Our system resolves misfire issues for both stock and high performance BMW’s. No need for constant replacing of coils due to insufficient design and heat soak found in pencil coils. No more small gaps on your high horsepower race car either. These coils can jump the gap and have the current and duration to eliminate misfires once and for all.
We even went so far as to test these coils on a car with 68k on the plugs that had misfire issues in multiple cylinders and found it not only removed all misfires but also resulted in a more smooth and quite idle!
So it doesn’t matter if you Race or just Daily commute, this ignition system is the solution to all of your coil frustrations!
For more detailed information please click here as we provided @V8bait with everything we could to allow him to conduct another excellent write up on ignition coils and provide not only the details of our coils and other coils, but also an explanation of what everything means.
Production is already in progress and you can expect to see these kits shipping around the end of this month!
We will be providing specifications and pricing on our website soon, if you have any questions as always feel free to contact us we are glad to help!