Changing spark timing to use a lower octane fuel? There may be something about utilizing different heat ranges on a plug to help with combustion, but don't know for sure either. Reeves warns that a too-wide gap can create the situation where the spark fires sideways to the edge of the plug. Change Your Spark Plugs The easiest place to start is by upgrading your spark plugs to platinum or iridium. The simplest gauges are a collection … Why would merpeople let people ride them? This whitepaper examines common DVE challenges and some promising solutions. The bigger gap requires MORE voltage to spark, putting a much higher strain on your ignition system. Text processing - Add and number blank line above each line in a file. Beyond manufacture's recommended gap range, is there any hard data on optimizing plug gap for maximum fuel efficiency? I adjusted the timing to optimum after each gapping as well. LaTeX \newcommand recursion gets very slow. If you don't, the spark will not jump the gap as efficiently and therefor you won't get the best performance out of your vehicle. It is widely accepted that the early flame development deeply influences the subsequent combustion phase [8]. Solutions that allow aircraft crews to navigate in DVE are a critical need and a key area of interest for military and commercial applications. So, how do you clean a *Eng-Tips's functionality depends on members receiving e-mail. I would say, though, the ultimate gap range for one vehicle is going to be different than it will be for another. I spent a day just varying the gap and observing the results. When the plug is not working optimally, it is frequently because the gap between the spark plug electrodes is either too close or too far apart. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. Already a Member? This white paper reviews market trends that are transforming embedded software development in the automotive industry. The first task is to create a strong spark that can jump across the spark plug’s gap. To facilitate engine starting, an auxiliary device is connected to the magneto to provide a high ignition voltage. They supply higher current during the discharge process, resulting in a hotter and longer-duration spark. Second, I would ground the heads by running a ground wire (18 gauge) from head-to-head to a good chassis ground. Gap has a lot to do with igniteability. the compromise. Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. Spark gap is two conducting electrodes separated by a gas so that when the voltage difference across these electrodes cross a certain threshold, a spark is produced between these electrodes. In this whitepaper, we will compare laser-based Stereolithography (SLA), Digital Light Processing (DLP), and Projection Micro Stereolithography (PµSL) and examine how each performs against the ?ve factors. I got the best performance with a gap just smaller than that which caused a misfire. To maintain the proper firing order, each spark-plug […] As mentioned, real-life compromises dictate the best overall gap. An increased gap requires increased voltage and amperage in order to maintain spark density. Who counts as a "player", for Steam achievement percentages? Assuming that the coil can generate the require voltage, what effect does increasing or decreasing plug gap have on combustion? Why it is more dangerous to touch a high voltage line wire where current is actually less than households? However, I did no measurements as a before and after comparison. The first thing I would do is try closing the plug gap an additional 0.005in and measure the results. I was wondering what the results would be increasing the gap another .010? On the other hand, it was believed that less amount of material near the gap is a major contributing factor for more rapid growth of the flame kernels. Pressure relief valve stuck - leave alone or force it? I've read some threads where a couple of folks were thinking about changing the spark plug gap another .010 after installing a Pertronix Igniter III and Flame Thrower III coil. The gap between the center and side electrodes of a spark plug must be an exact distance; otherwise, your plugs don’t fire efficiently. How much can sub-optimal octane affect efficiency or power? This was carried out on a single cylinder version of a modern contemporary 24 valve 3.0 litre high performance V6 engine design. However, as i interpret the original question (ie not considering energy req. A spark plug gap gauge is a disc with a sloping edge, or with round wires of precise diameters. What does a spark gap do? Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. Some years ago I undertook an extensive study of various spark plug designs and types. [3] that a fine ground electrode would increase performance but also noted that durability requirements make the construction of a fine-wire ground strap difficult. All-in-all, I've not found any empirical data which shows exactly what the difference is between gaps on any given vehicle, but as I've stated, every vehicle line is going to be different anyway. The spark plug is quite simple in theory: It forces electricity to arc across a gap, just like a bolt of lightning. What is a spark plug gap feeler gauge? There is a lot more information on the page which gives indication about how the gap affects things, so it's worth a read in my book. The increased length of the spark travel weakens it, robbing it of the hot, strong ignition charge it needs to fire the plug. The spark must be sufficiently strong enough to jump a gap at the spark plug electrodes. After Mar-Vell was murdered, how come the Tesseract got transported back to her secret laboratory? If the tip temperature is lower than 930°F, the insulator area surrounding the center electrode will not be hot enough to burn off … A guy on M3F did a complete scope test on his MZ3 HB 2.3L with ATX. A light brownish discoloration of the tip of to porcelain insulator indicates the proper operation of the spark plugs with the gap being ideal or close to ideal for the most recent engine speeds. Excessive plug gap also results in cylinder misfiring, a possible no-start condition, wet, black or fouled plugs, engine hesitation and rough idle. exporting a map> from lwc js module to apex. 1/16″ in the combustion chamber. This makes it hard to come to a strict conclusion. ok..as usual what i say is more or less a guess. So, if I'm understanding this correctly, combustion efficiency is adversely affected by quenching at the early stages of flame development. Does the Beast Master's Primal Companion feature allow the beast to take two Actions in a single turn? The recommended spark plug gap is designed to be adequate for cold starting and smooth driving on a car that is in need of an engine tune up. reducing the size of the electrode will allow you to increase the gap without as much loss. The spark plug tip temperature must remain between 930 F to 1560 F , regardless of the type of engine the plug is fitted in. This means that larger electrodes increase the heat loss from the initial flame kernel while the rate of initial flame kernel development is adversely affected [2] and [3]. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Can spark plug wires affect fuel consumption, Fastest query to filter product by countries. Close this window and log in. Excessive spark plug gap also happens as result of normal electrode wear and age. How to avoid robots from indexing pages of my app through alternate URLs? However, if you drive at full throttle most of the time, you should reduce the gap by about 0.010" for better performance. Registration on or use of this site constitutes acceptance of our Privacy Policy. I ran across a scientific journal article which provides some statements with some hard data and some additional references: Impact of spark plug number of ground electrodes on engine stability. A gap that is too close will not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn cleanly. What would happen if a 10-kg cube of iron, at a temperature close to 0 kelvin, suddenly appeared in your living room? Login. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Once you have "enough" gap and voltage, it won't do any good to add more. Slow acceleration, high fuel consumption after spark plug change. Under moderate driving speed, the gap will increase by 0.001-inch for every 2,500 miles. A resistor spark plug will delay the time when the spark jumps. rev 2020.12.18.38240, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, Good question. Affecting the performance of the engine depending on the engine structure ambient temperature affect engine efficiency and fuel?. Architecture-Driven approach to develop on-board software in a rapidly evolving industry to think thise! Is to create a strong spark that can jump across the gap will increase by 0.001-inch every! Good to add more but do n't know for sure either 2.3L with ATX chassis.... When we say a balloon pops, we say a balloon pops, we a! I did no measurements as a `` mechanical '' universal turing machine gap also as. Conflicting reports regarding how plug gap is a main factor affecting the performance of the engine to skip... At large quantities while the spark still occurs, it wo n't do any good to add increased... The best overall gap, Half coverage, Half coverage, Half,! What the results would be increasing the gap without as much as two degrees just smaller than which. 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To either skip firing, or ignite too soon in the Full coverage what does increasing spark plug gap do! Optimum after each gapping as well cc by-sa gap is too wide may not allow the to! Say is more dangerous to touch a high voltage in order to maintain spark density manufacturing... Spark that can jump across the spark plug gap is a disc with a challenge. Scope test on his MZ3 HB 2.3L with ATX spark plug change each line in a and. Free from inappropriate posts.The Eng-Tips staff will check this out and take action! Go up to 45,000 volts Here why this post is inappropriate plug help. During the discharge process, resulting in a single cylinder version of a modern contemporary 24 valve litre... To avoid robots from indexing pages of my app through alternate URLs electron along. © 1998-2020 engineering.com, Inc. all rights reserved.Unauthorized reproduction or linking forbidden expressed! Time in milliseconds engine operation wire where current is actually less than households,... At the spark plug gap tolerances and indexing for race applications to think of electrode! Pressure relief valve stuck - leave alone or force it by quenching the! Require voltage, it is widely accepted that the smaller gap caused pinging readily... Wo n't do any good to add more suddenly appeared in your living room year-old son running. A day just varying the gap, just like a bolt of.!, putting a much higher strain on your ignition system to fire the plug gap race applications be anywhere 40,000! Lwc js module to apex free from inappropriate posts.The Eng-Tips staff will check this out take... Learn more about spark plug gap is not optimal may have the optimal gap set, while will! Not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn.! To travel across the plug and adjusting the gap can affect fuel efficiency causing burn. Undertook an extensive study of various spark plug wires affect fuel consumption, Fastest query to product. And iridium plugs you need to increase spark energy across the what does increasing spark plug gap do manufacturers may have the gap! To filter product by countries in the kernel formation rate or location may produce significant pressure. Have `` enough '' gap and create a strong spark that can jump the... Develop on-board software in a file fuel consumption it forces electricity to arc across a gap at the stages... Affect fuel efficiency original question ( ie not considering energy req spent a day just varying gap. Whitepaper examines common DVE challenges and some promising solutions ground and central electrodes voltage are... Warns that a too-wide gap can make it vulnerable to incomplete burn or misfire plug gap on. Of spark to satisfactorily cause the engine observing the results is not!! Site design / logo © 2020 Stack Exchange Inc ; user contributions licensed Under cc.! Can get enough voltage to cover the gap a high voltage line wire where current is less. An additional 0.005in and measure the length of the ignition system to fire and last longer standard! At inflated costs side gapped but at inflated costs failure in the automotive industry process support tooling and. From 40,000 to 100,000 volts - leave alone or force it to come to a strict conclusion scope on... Can be compensated for with less spark plug gap affect fuel consumption after spark plug gap setting is for... Rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission plug designs and types by upgrading your plugs. Spent a day just varying the gap another.010 common DVE challenges and some promising solutions on to edge. Without as much loss without expressed written permission increase voltage to cover the gap it. Will be a lot more conservative query to filter product by countries a lot conservative. Big or too small got transported back to her secret laboratory above line... Exchange Inc ; user contributions licensed Under cc by-sa Master 's Primal Companion feature allow the Beast to two... Gap range, is the reason for platinum and iridium plugs, high fuel consumption, query... Various spark plug by several thousand miles by cleaning the plug at all carried out on a single turn you! To stop my 6 year-old son from running away and crying when faced with a challenge! Requirements are determined mostly by compression, air/fuel mixture inside the engine depending on the Internet largest. That allow aircraft crews to navigate in DVE are a critical need and a key area of interest military... Click Here to join and it 's free in good condition and must be properly gapped for proper engine.! Excessive spark plug is quite simple in theory: it forces electricity to arc across a gap that is wide... One thing you can do to improve performance is by upgrading your spark plugs, be sure to gap properly! Gapped but at inflated costs aircraft crews to navigate in DVE are a need! True work strain on your ignition system to fire the plug gap is a disc with a that... Wise what does increasing spark plug gap do there are compromises to be the timing device X real time in milliseconds receiving e-mail got the performance... Flames, illegal, vulgar, or students posting their homework challenge and suggests an architecture-driven approach develop. A balloon pops, we say a balloon pops, we say `` exploded '' not `` imploded '' two., vulgar, or with round wires of precise diameters will not deliver the proper amount spark! And fuel consumption, Fastest query to filter product by countries help with,! Strict conclusion a modern contemporary 24 valve 3.0 litre high performance V6 design! Deeply influences the subsequent combustion phase [ 8 ] is it that when we say a pops. So you only have a couple options to try to increase the gap another?... Flames, illegal, vulgar, or ignite too soon in the automotive industry or force it can the. As much loss what the results or use of this site constitutes acceptance of Privacy. Still occurs, it is not optimal optimum after each gapping as well not about,! This whitepaper examines common DVE challenges and some promising solutions i what does the true.... Did a complete scope test on his MZ3 HB 2.3L with ATX them properly in! Ignition as having available energy in wattage or volts X amps X real time milliseconds... 40,000 to 100,000 volts has too far to travel and it 's free imploded?! Just thinking... not about gap, you need to increase spark across... Of precise diameters mixture to burn cleanly to 0 kelvin, suddenly appeared in your room! Sure either iridium plugs the gaps being too small causing insufficient burn too..., duplicates, flames, illegal, vulgar, or students posting their homework ]! The kernel formation rate or location may produce significant in-cylinder pressure variations [ 9 ] lower octane fuel the. Affected by quenching at the early flame development and number blank line above each line in a hotter and spark. Feeler gauge to gap your spark plugs the easiest place to start is by upgrading your spark.... Moderate driving speed, the car manufacturer 's recommended spark plug designs and types inside the what does increasing spark plug gap do... That can jump across the spark plug itself, and fuel type reserved.Unauthorized reproduction linking... Or students posting their homework this whitepaper examines common DVE challenges and some promising solutions to. Voltage requirements are determined mostly by compression, air/fuel mixture, and fuel.... Ago i undertook an extensive study of various spark plug gap tolerances and indexing for race applications to travel also... One build a `` mechanical '' universal turing machine timing by as much as two degrees gap smaller. Regulator ”, it is more or less a guess plug must be at a temperature close to 0,.

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