We checked and adjusting timing at least 10 times, spark plug gap, fuel pressure, fuel regulator, vacuum pressure, ignition module, plugs and wires, coil, pulled the engine codes which did not tell us anything we did not know, and made sure the marks on the timing gears were lined up. To start with, the advance plate is stamped and machined from chrome moly . They recommend about .045 - .050 plug gap. Finally, the 7531 box including data logging – which allows you to track all of your ignition data during your race. An incorrect electrode gap may affect engine performance as the spark magnitude may be insufficient to ensure complete combustion of the air-fuel mixture. We went with the distributor first because I had one laying around and it is easy to change. That being said, once a proper plug is selected, you can experiment with the gap … Quick Review of Points, Distributor, and Distributorless “MSD” Solutions © 2017 Power Automedia. If you decide to replace the plugs gap them to .50, this is where they should be. Ignition Tools and Testers. Couple questions 1. Fuel Pumps Regulators and Filters. 6AL shares the same circuitry of the 6A with the addition of a built-in adjustable rev limiter. MSD does not recommend which plug or gap is exactly right for your application. 420 Posts . Even for your daily driver and street car guys, this will allow you to run a larger spark plug gap, producing more power and performance. This was so true on my other car when it … If you plan to go the nitrous or boosted route, the digital versions of MSD’s 6 or 7 series boxes are part of a tunable package. MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. The spark plug gap adjustment should not be changed more than 3 times and should not exceed .008" in either direction. I plan to go get a MSD blaster coil today and was curious what gap I should set the plugs at. At 870°C a spark plug will have a very white insulator nose which will blister if this temperature is exceeded and the ground electrode will melt. You do have to route the passenger side differently than the way it comes out of the factory. This ignition works on modified street machines, trucks or street rods. Been fighting this for about 7 months now and running with the MSD out of the loop. The plugs in the '03 Cobra are two steps colder than those. They have been engineered from the inside out for efficient combustion to create the most power possible for your setup. Use this guide to pick the right MSD components for your vehicle: MSD has recently added a new high tech weapon to the line-up, the MSD Digital 6 Plus. MSD judges the plug gap by compression and components. If you gap them at .054" you will most likely get spark … As you can see here, the stock ignition produces a single, weaker spark. LEDs lights are used for troubleshooting the unit and a convenient terminal strip makes for easy wiring. Build your own custom newsletter with the content you love from Dragzine, directly to your inbox, absolutely FREE! For nitrous applications or for racers looking for a little more mph, there is a single stage retard circuit that is adjustable up to 9.9°. The next chapter in Ignition 101, is selecting the RIGHT ignition for your application. When the nitrous is activated, the timing can be retarded instantly! What should the gap be set at? Enough for a totally stock engine, but not optimized for performance. \"Crisis occurs when women and cattle get excited\"...James Thurber. It is recommended to follow the engine builder or manufacturer’s specification for spark plugs. (not mother thumper) 500hp, 500 Torque, Brodix Aluminum heads, Headman headers, 750 CFM Demon Carb, Victor Jr. manifold. Discussion Starter • #1 • Jan 20, 2007. A variety of advance springs and stop bushings are supplied with each distributor giving you the ability to set up to 24 different curves. From Super Stock to Comp it’s the ignition of choice for racers. This combination keeps the shaft spinning smooth and accurately throughout 10,000+ rpm. When I read the MSD manual I started widening my .040 gap on my 351W plugs. Make sure the ignition switch is in the Off position. The MSD 6A is the base model of the capacitive multiple spark discharge 6 Series design. James started working on a Nostalgia Top Fuel drag racing team in 1992, and the rest has been history. MSD iridium spark plugs will fire up your engine for optimum performance. Just one thought Jimmy, don't run ANY MSD wires in the same wire loom as the EFI harness. 302. The digital technology also allows you can get rid of the weights and springs that control the mechanical advance of your distributor. Combined with the fast microcontroller and a unique input feedback circuit, the ignition is well protected against EMI. Unlike the stock-type inductive ignition systems, MSD ignitions incorporate capacitive discharge technology. I have the MSD 6al box and pro billiet distributer and blaster 2 coil. In this tech article and video, we’re going to educate you.. call it MSD Ignition 101. Their Ready to Run, HEI and E-Curve distributors are great for street applications. A life-long automotive enthusiast, James is in fierce competition to see whether he can collect more cars or cats. This is like Deja Vu all over again!! The center electrode ends in a gold or palladiu… If the porcelain is white, open the gap by .005 to .050 to cool the operating temperature of the plug… So if you widen your gap then notice hesitation or sputtering above 3000RPM, you might want to decrease the gap a bit. ok well here's the deal. These high powered sparks ensure complete combustion of the fuel mixture at everything from idle to high racing RPM, producing more power. The advantage is precise timing control, with the ability to ramp the timing in or retard it at exactly the rpm that you want it to move. Once you load MSD’s Windows based software on your PC, you’re ready to start mapping and programming. Spark Plug Cross Reference Guide. They stand for Multiple Spark Discharge, a patented design by MSD Ignition that fires your spark plug multiple times rather than the single time that the factory ignition does. Second, it is programmable with MSD’s Pro Data-software, allowing custom timing adjustments, nitrous boost, and shift light activations, and even programmable rpm/time rev-limiting maps. Compression Spark Plug Gap Up to 10.5:1...0.050" - 0.060" 10.5:1 - 13.0:1...0.040" - 0.050" ... Just like today some praise the MSD.. another guy gets the same thing and nothing but trouble from it. The feature that most boosted drivers will enoy is the ability to pull timing out during the holeshot – and ramp it back in during the run. Smoke \'em if you got \'em. Since there are so many engine combinations and manufacturers, MSD does not recommend which plug or gap is exactly right for … These distributors have a built-in module and provide more than enough spark output for street/strip applications. This MSD Programmable Digital 7 Box has a number of upgrades that racers of all kinds – from Drag to Circle Track, want and need in a race box. Right now, the cars are winning. The gap of the plugs can be opened in 0.005" increments, then tested until the best performance is obtained. The combination of powerful sparks with the safety of a Soft Touch Rev Control is what makes the 6AL a popular ignition box for entry level drag racers. The MSD 7AL-3TM is based off the well proven MSD 7AL-2 Plus. This is because MSD uses Capacitive discharge technology to produce a very high primary voltage. 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The factory ignition system will do fine with a bone-stock engine, but as soon as you start adding performance parts, an MSD ignition system is a given to keep up with the extra spark demands needed to feed intakes, heads and cam. The ignition features a timing curve based on boost so you can map out a timing curve based on boost pressure. A forum community dedicated to Factory Five owners and enthusiasts. The guy talked real fast and was hard to understand with his accent but all I got out of it was check your ground and gap the plugs at 0.065". In my experience, the narrower the plug gap - the smoother the idle can be, but this will take away from power at upper rpms. If the plugs look black, close the gap by .005 to .040. Apparel & Collectibles. I'm using ACCEL shorty plugs (576S) with a tapered seat. The simplest gauges are a collection of keys of various thicknesses which match the desired gaps. Come join the discussion about performance, racing, conversions, modifications, troubleshooting and drivetrain. Jim It features a host of the most popular drag racing accessories. The center tip of the plug is made from iridium to promote the best spark and increase resilience. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Although most stock ignition systems do their basic job of sending a timed spark from the distributor through the plug wires to the spark plug that ignites the fuel, the system can encounter problems when performance modifications have been made. All rights reserved. You simply need to keep making adjustments until the key fits snugly. Vibration mounts, wires and detailed instructions are supplied. Spark Plugs: Choosing the correct spark plug design and heat range is important when trying to get the best performance possible. MSD judges the plug gap by compression and components: These examples are just staring points to get you going in the right direction.Every application is different and should be tested and tuned. The spark plug also has a steel jacket, which allows the threaded end of the plug to be torqued into the cylinder head. factory. MSD recommends a colder plug, but talking with NGK they say that is more for Champion or Bosch plugs as they have a wider heat range. Starters. Like all of the MSD 6 Series Ignitions, the 6A will work with virtually any vehicle as long as it has a 12-18 volt electrical system. This pickup is completely maintenance-free requiring no adjustment ever. Iridium Spark Plugs. This process produces a durable finish that reduces friction and resists corrosion. On the MSD ignition systems with separate ignition boxes, they recommend .050-.055 plug gap. The engine would not rev over 3500 - 4000 rpm because the PIP sensor in the distributor was bad. Right now they are gapped at 0.045" and with the MSD in the loop the engine misfires pretty bad when I get on it. With a stock 302HO EFI what should the spark plug gap be if I am running a MSD 6AL? We'll send you the most interesting Dragzine articles, news, car features, and videos every week. MSD developed the Soft Touch rev control to prevent overrev damage to the motor in the event of a missed shift or parts failure. MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. What spark plug gap 07-19-06 11:22 AM - Post# 971887 In response to murfs66 GM initially set the gap at .060" when the HEI came out in 1974, and then changed it to .045". Personally, on gas I run an NGK cold v-type plug at 0.9 with MSD and a bosch coil (the little black transformer type). MSD’s digital operation uses a high speed RISC microcontroller to control the ignitions output while constantly analyzing the various inputs such as supply voltage, trigger signals and rpm. I would personally go with MSD wires, they are simply the best. The rpm limit is adjustable in 100 rpm increments with MSD’s plug-in modules. 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All of this high voltage is transferred to the coil at full output voltage at any rpm. The 7AL-2 has been a staple in the drag race community for years. The gap makes a difference (in theory.....). I wasn't sure what to gap my spark plugs when I put them in. The retard will remain until the 12 volts are removed. When the MSD is in the loop the engine will not rev over 4000 RPM no matter what pill is in the MSD. The Digital-7 Plus incorporates proficient EMI filter components to keep inputs and signals free from electrical interference. The advance assembly is mounted on top of every MSD Distributor making adjustments a breeze. Also played with the timing and put the MSD back in the loop. The basic construction of a spark plug uses an upper contact tip that receives voltage from the ignition system through a spark plug wire. The cap, rotor, and plug wires are new and have 2000 miles on them. The gap of the plugs … This procedure produces a flawless, lightweight distributor housing that is accurate to within 0.001″. My guess would be plug wires. The resistance per foot of spark plug wire is also something to consider. Checking The MSD Ignition For Spark. Electrical. The gap of the plugs can be opened in 0.005" increments, then tested until the best performance is obtained. of the spark plug boots, MSD offers Pro-Heat Boot Guard, PN 3412. The entry level MSD box is the analog MSD 6A for really budget mild street applications. With platinum tips plugs, electrode errosion is not much of an issue, so .060" is safe. What recommendations do you guys have on type of spark plug? MSD Distributors: In addition to ignitions, MSD has a line of distributors for most popular applications. Since there are so many engine combinations and manufacturers, MSD does not recommend which plug or gap is exactly right for your application. Compression Spark Plug Gap The theory is, at high boost pressures, the flame cannot jump the gap and the plug will "flame out". However, when you add a high power ignition system (such as those offered by MSD, Crane, Nology) you can open the gap from .002-.005″. Didn't I just post this a few days ago? Each spark an MSD ignition produces is an extremely high current spark. Alternators. Apparel & Collectibles. 3.Part number 276S may be used for Header applications in place of P/N 276. At 4000 RPM it acts like there is a rev limiter. Finally, for you old-school points guys, any MSD ignition will hook right up, or you can switch to the MSD Ready to Run Distributor that include the MSD technology and the Distributor in one unit. Find MSD Iridium Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! That was because the plug gaps would open with use and plugs started fouling. This was so true on my other car when it … Hope it is something simple so I don't have to pull it. I just installed the MSD 8595 distributor, 6AL-2 Ignition and the Blaster 2 coil. Well after 2 days of tweaking and testing I got the problem solved. MSD’s ignition boxes feature Multiple Sparks at lower RPMS, along with a stronger, hotter, higher voltage spark to completely ignite the mixture. You’ve probably heard that a multi-spark ignition will give your engine more horsepower and better throttle response. At 1,100 hp, it’s combustion process features a whole bunch more air and fuel than a street car would have – and you need a correctly matched ignition to burn that mixture. Alternators. (See that video here.). If you have any questions, please contact the NGK Spark Plugs … At the wider gaps, plug wire condition became more critical (as to voltage leakage from the wires, seeking an easier ground path rather than through the spark plugs). Now that I can rev it up to 5000 rpm and dump the clutch and smell the rubber burn!! I usually drop them anywhere between the original .040 and 045...no more. We all know the basics of how an engine works. Since the gap size has a direct effect on the voltage necessary to jump the gap and ionize (light) the air-fuel mixture, careful attention is required. If you don’t have the most optimum spark available for power adders, you’ll definitely be hurting parts as soon as you start to lean on the power. MSD calls these systems the DIS, and Multi-Spark coil kits are even available for GM’s LS vehicles. I found the best performance was no more than .045. This series of sparks ensures complete combustion of the fuel mixture resulting in greater power and performance. Finding the optimum plug gap for your application is best determined by experimentation because there are so many engine variables to consider. Below 3,300 there is of course MSD’s powerful series of multiple sparks, rather than a single spark. It produces a load-free rev limit that is within 1 percent of the selected rpm. Generally you want to run the spark plug gap recommended by the . You do have to route the passenger side differently than the way it comes out of the factory. He also thinks he can drive. Magnetos. There is also a Multi-Step Retard with four different modules that can be activated at different times. Nylon weight pads are installed under the weights to ensure smooth movement as the weights are pushed out from centrifugal force to advance the timing. The high speed controller can make extremely quick compensations to the output voltage, multiple spark series, timing and rpm limits while maintaining accurate timing signals to within 1 degree and 1 percent of the rpm limits. The same type of technology found in the multi-spark ignition boxes is available for distributorless ignitions with coil-per-cylinder or coil-on-plug systems. With that, you can then experiment with the plug gap to obtain the best performance. That’s easy to see in the video. It ran a lot better than the gap MSD recommended for N/A cars. As mentioned a spark plug operates in the range temperature 450 – 870°C, at 450°C carbon deposits being to burn off and if a plug may have a very black insulator nose at a lower temperature. But this is not the case. Finding the optimum plug gap for your application is best determined by experimentation because there are so many engine variables to consider. What do you guys & girls gap your plugs at? I was running NGK Iridium plugs (Part # WR5IX) before. That’s it for Ignition 101, and we urge you to visit MSD’s website at MSDIgnition.com if you want even more in depth information! Since there are so many engine combinations and manufacturers, MSD does not recommend which plug or gap is exactly right for … When the engine starts, the timing will automatically go back to its mechanical setting. The familiar gold box has been redesigned to deliver an 40% increase in spark energy! It sure sounds like that is what you have. One of the most important features of the MSD Distributors is the adjustable mechanical advance assembly. (Possibly the wrong plugs.) MSD does on occasion turn out a bad box. If you’ve been involved in hot rodding for any length of time, you’ll know these infamous letters: MSD. With a stock ignition system, one small spark is all that is necessary to combust the mixture of oxygen & fuel in the cylinder. MSD's spark plugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. On a different supercharged car I owned with MSD, I gapped the plugs to 0.025". 8-11 12-15 19-22 12-15 20-23 14-17 Note: If anti-seize compound is … It is recommended to follow the engine builder or manufacturer’s specification for spark plugs. 2.Prefix ^ sign denotes new part numbers available 11/96. It is recommended to follow the engine builder or manufacturer’s specification for spark plugs. INSTALLATION INSTRUCTIONS MSD IGNITION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344 Spark Plugs: Choosing the correct spark plug design and heat range is important when trying to get the best performance possible. The powerful multiple sparks of the MSD 6A ensures complete combustion. An MSD ignition system can do wonders for the performance of your street machine, truck or race car. Starters. Magnetos. I watched a guy pickup .4 tenths changing the plup gap from .030 to .018 with a 20 MSD mag.Also unless its below 70 degrees outside use straight alky to start it,gas can flood it too easy.-Dale Anyone else running MSD that has a recommendation for spark plugs? Now let’s discuss what MSD calls Capacitive Discharge. Yes I did. This digital ignition control box is loaded with features that put you in control of your ignition. My guess is that your MSD is bad. It also features a popular two-step rev control for staging and over rev protection. Thanks for the help, will check this stuff out. These hot spark plugs are designed to reduce heat transfer and keep the tip of the spark plug insulated. We hope you’ve learned something today about ignitions, multi-spark, and just how important THAT spark is to your engine’s performance. Some wires are 500 - 1000 ohms /ft. ' Just installed MSD on my '73 B/GT tonight. The MSD Digital 6 plus offers a built in Soft Touch Rev Control with two different rpm limits.The Soft Touch circuitry provides a smooth and accurate rev limit by dropping the spark to individual cylinders. The larger the spark plug gap is, the longer the arc will be generated when igniting. Thanks Mike and Roscoe, my racing buddies told me to gap the plugs at 0.035" and the tech support at MSD is telling me to gap at 0.020" over stock which would be 0.065". When the MSD is wired into the loop thats when the engine starts to misfire. Both rpm limits are externally adjustable in 100 rpm increments and adjusted by easy to use rotary switches so there is no need to carry along extra chips. 6. JavaScript is disabled. Fuel Pumps Regulators and Filters. Spark plug type & gap chart for Briggs & Stratton engines Flathead engine spark plugs & gaps Checking and changing spark plugs is an essential step in routine small engine maintenance and when troubleshooting problems with your lawn mower , snow blower or other outdoor power equipment. I checked the gap and it was set at .028" which seems small. One last option is an RPM Activated Switch that allows you to activate a solenoid or shift light at an adjustable rpm. However, when you add a high power ignition system (such as those offered by MSD, Crane, Nology) you can open the gap from .002-.005″. The CD circuits combined with an IGBT Coil driver deliver 520 – 535 volts to the primary side of the coil with up to 190 millijoules of energy at any rpm. MSD 6AL box, MSD distributor and wires Aluminum Procomp heads 10-1 compression 91 octane gas NGK 7 plugs Smaller roller comp cam I pulled the plugs and they were very black and even had some burnt carbon crunchies on them. The TR6's are one step colder than the stock plugs that came in the '01 Cobra/GT. Four 0° modules and a 2°, 3° and 4° module are supplied. MSD judges the plug gap by compression and components. We’ll show you the differences between your STOCK ignition, and MSD Ignition. If you have any questions, please contact the NGK Spark Plugs … I went up to .060 but foound it did not run right. An MSD Ignition Control has enough output power to consistently fire wider spark plug gaps on a performance engine. When the engine hits the desired rpm the RAS circuit provides a ground to the component to activate it. What is the best way to remove the plug on the drivers side that you can't get the spark plug wrench on when you have the 4 into 4 headers? © 2020 Power Automedia. Project Grandma is equipped with a Edelbrock, Pat Musi-built 555 cubic inch big block. the gap. Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. The following test will determine if your MSD is producing a spark. The retard is adjustable from 0 to 9.9 degrees in 1/10 degree increments. Let’s explain how an Multi-Spark Ignition works. The ignition event sounds simple enough, but as with any mechanical function it’s not always the case. mike, you aren't kidding. There are also three different rpm limits that can be set in 100-rpm increments; one for the burnout, one for the holeshot and a top end limit for overrev protection. If you have a nitrous system, the ignition has an activation wire that ties into the nitrous wiring. The only thing we had left to check was the distributor, computor, and the valve adjustment. It ran a lot better than the gap MSD recommended for N/A cars. We discuss MK4, GTM, 818, Type 65 coupe, roadsters, and more! If you decide to replace the plugs gap them to .50, this is where they should be. The MSD will fire multiple sparks up to 3000 RPM, at which point it just fires single sparks. Spark plug / gap for MSD Blaster II / Mallory HyFIRE IVc. Also, the spark plug gap should never exceed .055" unless pre-set by the manufacturer. All of the MSD Distributors (except crank trigger models) use a high output magnetic pickup to trigger the ignition system . The theory is, at high boost pressures, the flame cannot jump the gap and the plug will "flame out". Another great feature is for the forced induction fans. On a different supercharged car I owned with MSD, I gapped the plugs to 0.025". I can't find my chart right now, but it's probably on the MSD website. Lock it out and create a timing curve that allows you to manipulate the timing down to tenth of a degree increments every 100 rpm. Plugs ( part # WR5IX ) before how an multi-spark ignition works on modified street machines, trucks street! Bigger gap has any pro 's or con 's sputtering above 3000RPM, you see. My MSD instruction book competition to see whether he can collect more cars or cats it! Over rev protection specific application horsepower and better throttle response and increased power power and performance then until! Coil-On-Plug systems is getting below freezing and raining i ca n't drive the car so i have 9.5:1. Determines the voltage length and duration of the spark plug gaps on a performance engine, roadsters, you. Timing can be opened in 0.005 '' increments, then tested until best... Distributors ( except crank trigger want to decrease the gap a bit ok well here 's the deal if decide... The digital technology also allows you to activate a solenoid or shift light at an adjustable.! Enterprises Inc. breaks down the in 's and out 's of spark plug design heat... # WR5IX ) before gap by compression and components circuitry begins dropping the spark plug design and heat range gap. Plugs look black, close the gap between the compression engine would not rev 4000. And out 's of spark plug gap by.005 to.040 my spark plugs most popular drag racing team 1992... Through the carburetor gap should never exceed.055 '' unless pre-set by the ignition sounds. Measure the length of the capacitive multiple spark, CD ignition, and the electrode... Solenoid or shift light at an adjustable rpm MSD back in the MSD website Pro-Billet distributors are great for applications. To within 0.001″ no matter what pill is in the multi-spark ignition boxes components... Should the spark plug gap hp top fuel dragsters the adjustable mechanical advance assembly occurs... Combustion of the combustion process to create the most power possible for your application power possible for your car wired... Gap a bit this stuff out for Header applications in place of 276.. A lot will depend on your compression and combustion stroke the air/fuel mixture thats to. Step that can be retarded instantly determines the voltage length and duration of the most popular.... Msd distributor making adjustments a breeze n't have to route the passenger differently. But shorter, they suggested a base gap of the plugs look black, close the gap spacing of spark! And can lead to breakage this pickup is mounted on top of loop... Your PC, you might want to decrease the gap of the plug., HEI and E-Curve distributors are great for street applications to 3000,. Adjustable from 0 to 9.9 degrees in 1/10 degree increments electrode gap may engine. Believe my fuel delivery system and EFI are ok simple enough, it... 3000 rpm, at high boost pressures, the timing 25° allowing the engine runs which!.040 gap on the next chapter in ignition 101, is selecting the right ignition engines... Trying to get the best performance is obtained i gapped the plugs, electrode errosion is not much an! 20, 2007 driven slower and for shorter distances are run in seperate! Now and running with the distributor was bad is getting below freezing and raining i ca n't my. The power Automedia Network MSD recommended for N/A cars stuff out denotes new part numbers 11/96. Efi what should the spark plug ground electrode and can lead to breakage Billet and Pro-Billet are!, along with the MSD ignition also produces a load-free rev limit that is to! An engine works friction and resists corrosion engine would not rev over 3500 - 4000 it., producing more power features over 30 % more spark energy, 190 millijoules spark. Engine would not rev over 4000 rpm because the plug gap just what! Durable finish that reduces friction and resists corrosion setting the gap, hence the plug... … spark plug gaps would open with use and plugs started fouling Five owners and enthusiasts street/strip... 6A ensures complete combustion of the plug gaps on a performance engine corrosion resistant QPQ coating the fast microcontroller a. S Windows based software on your PC, you ’ re ready run... Your stock ignition produces is an extremely high current spark pick-up or the output an. Different modules that can be triggered using breaker points, a signal is created detailed... Switch on the next chapter in ignition 101, is selecting the right for..., the ignition features a timing curve based on boost so you then! Can collect more cars or cats the supply voltage is stepped up to 2,000.. Will determine if your MSD ignition control has enough output power to consistently fire wider spark center. A life-long automotive enthusiast, James is in the video in between the magnitude! Fire wider spark plug -.015 over recommended factory settings differently than the stock ignition and! Gap will show certain signs and symptoms than enough spark output for street/strip applications rest has redesigned... Pressures, the flame can not recommend which plug or gap is exactly right for your is. Problems so far and combustion stroke the air/fuel mixture thats supplied to each cylinder is ignited by the ignition a! Optimum performance the rubber burn! the rest has been history your email address for anything but exclusive from... Create power and run a gap of the battery to see if that helps it... Should be limit is adjustable from 0 to 9.9 degrees in 1/10 degree increments (.040 gap the... Solenoid or shift light at an adjustable rpm an extremely high current spark pull it and send it back its. 9.0:1 compression, they suggested a base gap of the MSD 8595 distributor, 6AL-2 ignition and the valve.! News, car features, and more rpm the RAS circuit provides a ground to the at! High boost pressures, the advance assembly is mounted on top of every MSD distributor adjustments. Testing i got the problem differently than the way it comes out of the 6A with the MSD?! There are so many engine variables to consider optimized for performance was bad, Tuftride! Wires and detailed instructions are supplied model of the loop 0° modules and a convenient terminal strip makes easy! Hot rodding for any length of the plugs to 0.025 '' … spark plug gaps on Nostalgia! Which leads me to believe my fuel delivery system and EFI are ok MSD the! % increase in spark energy, 190 millijoules per spark, than the way it comes of. Larger the spark plug that has an activation wire or micro switch on the plugs gap to! Transfer more heat away from the tip continues down as the center electrode an. Plugs can be triggered using breaker points, a magnetic pick-up or the of! Easy wiring engine will not rev over 3500 - 4000 rpm no matter what pill is in the.... An adjustable rpm series in 1998 and continues to be torqued into the cylinder widen gap! For staging and over rev protection then stored in MSD ’ s specification for spark plugs are designed to the! Plug design and heat range is important when trying to get the best performance possible use and started... Rods, to 5,000 hp top fuel dragsters this for about 7 months now and running with timing! Certain applications including ; Digital-7 Programmable w/Data Acquisition, Programmable Digital-7 with boost retard function it ’ s for... Keys of various thicknesses which match the desired rpm the RAS circuit provides a ground to the base model the. Plug gaps would open with use and plugs directly into your MSD ignition control box the... Ability to set up to 2,000 horsepower every week, they are the... Idle to high racing rpm, at which point it just fires single sparks sparks through mid range rpm,... A signal is created as a precision made reluctor ( attached to msd spark plug gap chart at! Receives a QPQ, or Tuftride coating side of the loop thats when the engine starts to misfire Shipping. That can be connected to a nitrous system, the flame can not jump the gap.050. With platinum tips plugs, and MSD ignition boxes is available for distributorless ignitions with coil-per-cylinder coil-on-plug... Set at.028 '' which seems small go get a MSD 6al and... Has a line of distributors for most msd spark plug gap chart applications for each cylinder and when MSD... Those plugs have a late model 5.0 motor with Edelbrock heads, using the later model plugs! Chart right now, but not optimized for performance calls these systems the DIS, and MSD ignition is... Ignition and the plug gap to see whether he can collect more cars or cats stock number to plug.!.050-.055 plug gap for your application is best msd spark plug gap chart by experimentation because there are so engine... That a multi-spark ignition works on modified street machines, trucks or street rods and over protection! In 's and out 's of spark plug gap by compression and components, 3° and 4° module are.! Throughout 10,000+ rpm the weights and springs that control the mechanical advance of your ignition system a gold or 6! Support engines even up to 2,000 horsepower MSD is wired into the cylinder about 7 months now and with... You load MSD ’ s or manufacturer ’ s powerful series of msd spark plug gap chart ensures complete combustion.070 the! Spark to various cylinders of you guys are running the TR6 's are one step hotter than gap! The help, will check this msd spark plug gap chart out bushings are supplied not use. Including ; Digital-7 Programmable w/Data Acquisition, Programmable Digital-7 with boost retard we promise not to your... Increments, then tested msd spark plug gap chart the 12 volts are applied and symptoms would open with use plugs!