Advantages Of Wasted Spark Ignition

Advantages Of Wasted Spark Ignition. What is an advantage of a distributorless ignition system? Is there any disadvantage of this wasted spark?

12.2. Wasted Spark from www.vems.hu

If the intake valve is closed when the spark occurs there is no risk of preignition. This system has several advantages, including fewer moving parts and more precise control of spark timing, which can improve engine efficiency, emissions and performance. The extra spark on the exhaust stroke has no effect and is thus wasted.

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What is an advantage of a distributorless ignition system? Because the electricity travels through the exhaust plug, a regular plug will corode quickly.

Source: wiki.speeduino.com

#3 kieran_e1, nov 13, 2010. Spark current is constant in a wasted spark setup (series connection) so the most spark energy goes to the spark with the highest resistance (because there is the same current but more voltage on that spark), which is generally the spark that needs to do the work.

Source: www.underhoodservice.com

Spark current is constant in a wasted spark setup (series connection) so the most spark energy goes to the spark with the highest resistance (because there is the same current but more voltage on that spark), which is generally the spark that needs to do the work. The wasted refers to the extra spark.

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A sequential setup will have more time for the coil windings to charge and will have more time between ignition fires to cool over a wasted spark setup witch will fire twice in the same cycle and have half the amount of time to cool down. #3 kieran_e1, nov 13, 2010.

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Spark current is constant in a wasted spark setup (series connection) so the most spark energy goes to the spark with the highest resistance (because there is the same current but more voltage on that spark), which is generally the spark that needs to do the work. Waste spark 1 waste spark 2 aftermarket ignition boxes like the msd 6a unit can also be used to increase the performance of the stock coil when using either megasquirt of motronic.

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This system has several advantages, including fewer moving parts and more precise control of spark timing, which can improve engine efficiency, emissions and performance. The spark delivered on the exhaust stroke, called a “waste spark” has no effect.

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In a wasted spark ignition systems there are two spark plugs connected to the ends of one coil ( for 2 cylinder engine )( for 4 cylinder engine two coils are used, each driving two spark plugs ). More coils, meaning they share load and have more time to recharge for a stronger spark at higher rev's.

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A sequential setup will have more time for the coil windings to charge and will have more time between ignition fires to cool over a wasted spark setup witch will fire twice in the same cycle and have half the amount of time to cool down. So my question is would there be any disadvantage over a fully sequential ignition and injection.

Source: www.underhoodservice.com

Not sure if it's the injection being sequential or the ignition being sequential that would create that area where you can create a smooth bottom end. A standard porsche 944 has a single coil which is timed by the dme to give the correct dwell and ignition advance for the engine conditions.

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Wasted spark with double ended single coil, one plug is always reverse polarity, erodes the electrode quicker. This design halves the number of components in a typical.

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The spark delivered on the exhaust stroke, called a “waste spark” has no effect. One has the gas mixture and one has exhaust mixture.

The Spark Delivered On The Exhaust Stroke, Called A “Waste Spark” Has No Effect.

A sequential setup will have more time for the coil windings to charge and will have more time between ignition fires to cool over a wasted spark setup witch will fire twice in the same cycle and have half the amount of time to cool down. If the intake valve is closed when the spark occurs there is no risk of preignition. Here are a couple of good links that describe the benefits and purpose of wasted spark ignitions for those who want to learn more.

Wasted Spark With Double Ended Single Coil, One Plug Is Always Reverse Polarity, Erodes The Electrode Quicker.

Quite hard to get to get matched coils that can be put in parallel to produce equal sparks. Less wear parts, no dizzy, rotors etc. There are two main drawbacks with this system.

The Spark Is Distributed To The Correct Cylinder By The Use Of A Distributor Driven From The Camshaft.

It seems large, but it will idle so smooth. So my question is would there be any disadvantage over a fully sequential ignition and injection. Depends on the ignition timing.

Forum » Efi Tuning Fundamentals » Running Sequential Injection But Wasted Spark Ignition.

Is there any disadvantage of this wasted spark? #3 kieran_e1, nov 13, 2010. Unfortunately, a lack of moving parts can make ignition system problems more difficult to.

Because The Electricity Travels Through The Exhaust Plug, A Regular Plug Will Corode Quickly.

Wasted spark fires two cylinders at once. Wasted spark ignition coils are also able to charge very quickly ensuring that a strong spark is present even at very high rpm figures. More coils, meaning they share load and have more time to recharge for a stronger spark at higher rev's.