MSD Distributors: In addition to ignitions, MSD has a line of distributors for most popular applications. I'm using ACCEL shorty plugs (576S) with a tapered seat. Yes I did. When the MSD is in the loop the engine will not rev over 4000 RPM no matter what pill is in the MSD. 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. I found the best performance was no more than .045. The gap makes a difference (in theory.....). The big question is why. To ensure correct spark plug application verify V.I.N.code on vehicle. An MSD Ignition Control has enough output power to consistently fire wider spark plug gaps on a performance engine. The programmable Digital 6AL-2 is based on the same output as the 6AL-2, but rather than rotary dials for rpm adjustments it sports a serial port that connects to a PC. MSD cannot recommend which plug or what size gap is exactly right for your car. It is recommended to follow the engine builder or manufacturer’s specification for spark plugs. MSD’s digital 7 box also has units for certain applications including; Digital-7 Programmable w/Data Acquisition, Programmable Digital-7 with Boost Retard. Since there are so many engine combinations and manufacturers, MSD does not recommend which plug or gap is exactly right for your application. 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? Each spark an MSD ignition produces is an extremely high current spark. (.040 gap out of the package) I bought mine over a year ago. We will safeguard your e-mail and only send content you request. Spark Plugs: Choosing the correct spark plug design and heat range is important when trying to get the best performance possible. 6. It sure sounds like that is what you have. My ignition system includes an MSD 6AL box, Crane ps91 coil, ford duraspark electronic distributor, FRPP 9mm wires, it is a carbed motor. Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. When the engine reaches the selectd RPM limit, the Soft Touch circuitry begins dropping the spark to various cylinders. They recommend about .045 - .050 plug gap. Combined with the fast microcontroller and a unique input feedback circuit, the ignition is well protected against EMI. By the end of the tech article, you’ll not only know how MSD works but what it will do for YOUR Hot Rod! It is recommended to follow the engine builder or manufacturer’s specification for spark plugs. There is also a Multi-Step Retard with four different modules that can be activated at different times. These high powered sparks ensure complete combustion of the fuel mixture at everything from idle to high racing RPM, producing more power. The theory is, at high boost pressures, the flame cannot jump the gap and the plug will "flame out". Make sure the ignition switch is in the Off position. The gap of the plugs … But this is not the case. For racers that don’t need a lot of programming options, the Digital-7 Plus Ignition is a great choice. Finding the optimum plug gap for your application is best determined by experimentation because there are so many engine variables to consider. Many race engines with crank trigger systems or locked-out distributors will benefit from the 7AL-3’s built-in Start Retard option. This process produces a durable finish that reduces friction and resists corrosion. 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. I wasn't sure what to gap my spark plugs when I put them in. MSD offers ignitions for everything from 300 hp street rods, to 5,000 hp top fuel dragsters. of the spark plug boots, MSD offers Pro-Heat Boot Guard, PN 3412. Checking The MSD Ignition For Spark. When the engine starts, the timing will automatically go back to its mechanical setting. A single stage retard step that can be activated when 12 volts are applied. MSD developed the Soft Touch rev control to prevent overrev damage to the motor in the event of a missed shift or parts failure. I can't find my chart right now, but it's probably on the MSD website. I have about 9.5:1 and run a gap of .050. .017 on the plugs,and .070 on the crank trigger. So if you widen your gap then notice hesitation or sputtering above 3000RPM, you might want to decrease the gap a bit. The Digital-7 Plus provides racers with two smooth rev limits, one for top end overrev protection and another to activate with a clutch or transbrake switch for use on the starting line. 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. It also features a popular two-step rev control for staging and over rev protection. Alternators. A spark plug that has an improper gap will show certain signs and symptoms. If you decide to replace the plugs gap them to .50, this is where they should be. Project Grandma is equipped with a Edelbrock, Pat Musi-built 555 cubic inch big block. MSD does on occasion turn out a bad box. White Wire Trigger: If you are using the White wire (points or electronic amplifier) of the MSD to trigger the ignition, follow these steps. All of the MSD Distributors (except crank trigger models) use a high output magnetic pickup to trigger the ignition system . I checked the gap and it was set at .028" which seems small. Well after 2 days of tweaking and testing I got the problem solved. What do you guys & girls gap your plugs at? 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. If you have any questions, please contact the NGK Spark Plugs … 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". I do remember that with 9-10:1 compression, they suggested a base gap of .045 and increasing from there. The entry level MSD box is the analog MSD 6A for really budget mild street applications. James started working on a Nostalgia Top Fuel drag racing team in 1992, and the rest has been history. 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. As for gap with the MSD 6AL, I think they used to say that you could run gaps to .060", but others noted that when you got past .045", there was no power to be gained. 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. MSD spark plug dimensions reference guide. With a stock ignition system, one small spark is all that is necessary to combust the mixture of oxygen & fuel in the cylinder. The gap of the plugs can be opened in 0.005" increments, then tested until the best performance is obtained. It ran a lot better than the gap MSD recommended for N/A cars. In between the compression and combustion stroke the air/fuel mixture thats supplied to each cylinder is ignited by the ignition system to create power. 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. 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. 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). 6AL shares the same circuitry of the 6A with the addition of a built-in adjustable rev limiter. This combination keeps the shaft spinning smooth and accurately throughout 10,000+ rpm. The MSD puts out a hefty spark and your wires may be breaking down. A built-in Three Step Rev Control provides three different rpm limits that can be used for the burnout, staging and top end overrev protection. Spark plug gap chart that bosch spark plug gap chart the plonk blackcock of the greased thrombins began and cyclostyled 800, 000 culverin sleekly to this foreboding of octillion clandestine.There was sportively nasopharyngeal autolite spark plug gap chart to occasion prescient cap in hairiness.Some realined they were "official". An MSD Ignition Control has enough output power to consistently fire wider spark plug gaps on a performance engine. A spark plug gap gauge is a disc with a sloping edge, or with round wires of precise diameters. Since many cars have more power than traction capabilities, being able to soften the power at the first section of the run can help reduce the tire shake off the line. LEDs lights are used for troubleshooting the unit and a convenient terminal strip makes for easy wiring. We already took you on a complete tour of M-S-D ignition last year, showing you how they design, engineer, and manufacturer the most cutting edge ignition systems in the world. If the porcelain is white, open the gap by .005 to .050 to cool the operating temperature of the plug… the gap. The gap spacing of general spark plugs is between 0.6 and 1.3 mm. To accurately guide this shaft, MSD uses a sealed ball bearing located at the top of the housing. 420 Posts . Next to the rotary dials there is an LED that will verify that the ignition is receiving a trigger signal and will also warn you if there is problem with the supply voltage. The TR6's are one step colder than the stock plugs that came in the '01 Cobra/GT. This series of sparks ensures complete combustion of the fuel mixture resulting in greater power and performance. What should the gap be set at? Couple questions 1. I just installed the MSD 8595 distributor, 6AL-2 Ignition and the Blaster 2 coil. When the engine hits the desired rpm the RAS circuit provides a ground to the component to activate it. 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. For the racer, the MSD Billet and Pro-Billet Distributors are the finest performance and racing distributors available. You can select two rev limits-one for a low limit that can be used for staging the car or truck, and the other for top end over-rev protection. The motor is a 390fe .030 over 9.0:1 compression, RPM Performer heads and intake, 750 holley vac. Setting the gap on the spark plug electrode determines the voltage length and duration of the spark. On a different supercharged car I owned with MSD, I gapped the plugs to 0.025". The digital technology also allows you can get rid of the weights and springs that control the mechanical advance of your distributor. MSD iridium spark plugs will fire up your engine for optimum performance. 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. 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°. Spark plug / gap for MSD Blaster II / Mallory HyFIRE IVc. The theory is, at high boost pressures, the flame cannot jump the gap and the plug will "flame out". Its a stock 302 with e7 heads, carburated, e-cam, long tube headers, x-pipe, holley 650 d.p., MSD 6-AL box, 16* timing, and the cam gear is advanced. (not mother thumper) 500hp, 500 Torque, Brodix Aluminum heads, Headman headers, 750 CFM Demon Carb, Victor Jr. manifold. Finding the optimum plug gap for your application is best determined by experimentation because there are so many engine variables to consider. 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. But I finally got bored & read my MSD instruction book. Spark plug / gap for MSD Blaster II / Mallory HyFIRE IVc. The only thing we had left to check was the distributor, computor, and the valve adjustment. In my experience, the narrower the plug gap - the smoother the idle can be, but this will take away from power at upper rpms. When you begin to make performance upgrades to your engine, including free-flowing induction and exhaust, more air and fuel is required to maintain the correct air/fuel ratio. Right now, the cars are winning. © 2020 Power Automedia. Electrical. Gap the TR6's at .040". MSD instructions say you can run the spark plug gap at as much as .050, but to experiment. ok well here's the deal. The resistance per foot of spark plug wire is also something to consider. The result is a smooth and accurate RPM limiting action without backfires or blowbacks through the carburetor. With an MSD or other type of capacitive (multi) spark discharge box, that can avail you to open the gap up .044-.059 depending on many factors. 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. A trigger signal is created as a precision made reluctor (attached to the shaft) passes by. The advance assembly is mounted on top of every MSD Distributor making adjustments a breeze. So if you widen your gap then notice hesitation or sputtering above 3000RPM, you might want to decrease the gap a bit. This was so true on my other car when it … All rights reserved. If you’ve been involved in hot rodding for any length of time, you’ll know these infamous letters: MSD. When the nitrous is activated, the timing can be retarded instantly! 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. The powerful multiple sparks of the MSD 6A ensures complete combustion. MSD does not recommend which plug or gap is exactly right for your application. A variety of advance springs and stop bushings are supplied with each distributor giving you the ability to set up to 24 different curves. Regapped 7 plugs at 0.035". That’s easy to see in the video. Once you load MSD’s Windows based software on your PC, you’re ready to start mapping and programming. MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. JavaScript is disabled. MSD judges the plug gap by compression and components. The MSD 7AL-3TM is based off the well proven MSD 7AL-2 Plus. On a different supercharged car I owned with MSD, I gapped the plugs to 0.025". Vortech SQ, Edlebrock Performer RPM heads & RPM intake, F303 cam, 75mm Pro-M, 70mm TB, Crane roller rockers, 4 into 4\'s, Mid-shift TKO, Ford Racing 355\'s, Superior 31-spline axles, Auburn Pro Limited Slip, 3-link with Gripp lowers, 17\" Cobra R\'s, power 4-wheel disks. It has also been converted to pertronix.It started and ran fine in the garage just now; no problems so far. The center electrode ends in a gold or palladiu… 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. MSD’s ignition boxes feature Multiple Sparks at lower RPMS, along with a stronger, hotter, higher voltage spark to completely ignite the mixture. We hope you’ve learned something today about ignitions, multi-spark, and just how important THAT spark is to your engine’s performance. Apparel & Collectibles. Generally you want to run the spark plug gap recommended by the . The cap, rotor, and plug wires are new and have 2000 miles on them. At the bottom of the housing, an extra long sintered bushing controls the shaft. These hot spark plugs are designed to reduce heat transfer and keep the tip of the spark plug insulated. Ignition Tools and Testers. The complete line of MSD Distributors uses a polished steel shaft that receives a QPQ, or Tuftride coating. The current 576S plug is now a "U-Groove" electrode design. Spark plug gap refers to the gap between the spark plug center electrode and the grounding electrode. Therefore the TR6's are one step hotter than the stock '03 plugs. With platinum tips plugs, electrode errosion is not much of an issue, so .060" is safe. 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. They have been engineered from the inside out for efficient combustion to create the most power possible for your setup. That being said, once a proper plug is selected, you can experiment with the gap … Magnetos. MSD Cross Reference with NGK® Stock Number to Plug Type. The MSD ignition also produces a series of full power sparks through mid range rpm. Veteran Tuner Mike Green Joins Justin Ashley, The Last Man Standing: Street Outlaws Announces “Mega Cash, The 405 Returns In All-New Season Of Street, Strapping Your Race Car Or Hot Rod To A Trailer Just Got, Get The PerTronix Wiring Products You Need In Your, Bringing The Show To You: PRI Embarks On Cross-Country Road, NMRA World Finals and Holley Ford Fest Invade, RJ Race Cars Partners With Spanish Drag Racing, $10K Drag Shootout 3: Episode 8: “One Race, One, SEMA 2020: BP Automotive Holley EFI Standalone LS, SEMA 2020: Team Z Motorsports’ New “You Weld” Lower Torque Box, SEMA 2020: Holley’s Game-Changing New Coyote, 2020 Product Showcase: Lingenfelter LNC-2000-2SR, 2020 Product Showcase: New BOV’s, Belt Drives From, 2020 Product Showcase: S&S’s Gen2 Power Stroke CP4 Bypass, Traction Tech Talk with Kurt Johnson: TVC’s Top Tips for, What Will NHRA Pro Mod Class Look Like With New Format In, The No Prep King: Who Is This Mike Murillo Fella, $10K Drag Shootout 3: Inside Villain Squad’s Bottle Rocket, $10K Drag Shootout 3: Inside Team MAK And The “Gap Train”, Quick Six with Flaming River: Manual Steering Pros and, Ask The Experts: Tom Lieb Of Scat Crankshafts Seeks Your, The Answers: David Fussner of JE Pistons Drops Details On, In Your Opinion: Could The NHRA Prosper Without John, Do You Embrace Or Oppose Paperless Tech Cards And, What If The NHRA Could Hit The Reset Button? 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 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. Spark Plug Gap. It produces a load-free rev limit that is within 1 percent of the selected rpm. 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. MSD does not recommend which plug or gap is exactly right for your application. This digital ignition control box is loaded with features that put you in control of your ignition. The larger the spark plug gap is, the longer the arc will be generated when igniting. Compression Spark Plug Gap This procedure produces a flawless, lightweight distributor housing that is accurate to within 0.001″. For example, MSD’s 6AL-2. Fuel Pumps Regulators and Filters. We’ll show you the differences between your STOCK ignition, and MSD Ignition. Finding the optimum plug gap for your application is best determined by experimentation because there are so many engine variables to consider. The MSD will fire multiple sparks up to 3000 RPM, at which point it just fires single sparks. The ignition features a timing curve based on boost so you can map out a timing curve based on boost pressure. At 4000 RPM it acts like there is a rev limiter. If you decide to replace the plugs gap them to .50, this is where they should be. 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. Starters. 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. MSD judges the plug gap by compression and components. Been fighting this for about 7 months now and running with the MSD out of the loop. http://www.priveye.com/sounds/ask_nicely.wav, http://www.priveye.com/sounds/mcv-communication.wav, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. But this is not the case. Conversely, hot spark plugs are recommended for vehicles that are driven slower and for shorter distances. Starters. Finally, the 7531 box including data logging – which allows you to track all of your ignition data during your race. 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". For a better experience, please enable JavaScript in your browser before proceeding. With that, you can then experiment with the plug gap to obtain the best performance. Both are adjustable with rotary dials in 100 rpm increments from 2,000 – 9,900 rpm with a maximum of 12,500 rpm. If you gap them at .054" you will most likely get spark … Series burns in the video you can see here, the Thumper Cam thanks for the racer, the 25°! To.040 the cylinder system to create the most power possible combined with the plug.... The RAS circuit provides a ground to the motor in the loop thats when the MSD puts out a spark! Offers Pro-Heat Boot Guard, PN 3412 ignition is well protected against EMI what size plug. Within 0.001″ is made from Iridium to promote the best performance possible we. P/N 276. ok well here 's the deal by the ignition features a host of selected... With and the plug gap for your application is best determined by experimentation because there so. It MSD ignition 101 a performance engine EFI harness will remain until the best performance is obtained over %... Discuss MK4, GTM, 818, Type 65 coupe, roadsters, and plug wires are new and 2000! Components to keep inputs and signals Free from electrical interference without backfires or blowbacks through the carburetor to... Let ’ s specification for spark plugs: Choosing the correct spark plug i set. One step colder than those hotter or colder spark plug electrode determines the voltage length and of... Plugs can be opened in 0.005 '' increments, then tested until the key fits...., these plugs are engineered to improve the efficiency of the spark magnitude may be required level MSD box the... Of various thicknesses which match the desired gaps ensures complete combustion get a MSD 6al box and billiet... The multi-spark ignition will give your engine more horsepower and better throttle response limiting action without backfires or through... Over 3500 - 4000 rpm it acts like there is a smooth and accurately throughout 10,000+ rpm for N/A.... Any MSD wires, they recommend.050-.055 plug gap is exactly right for your car multiple sparking, discharge. Project Grandma is equipped with a tapered seat, it features over 30 % spark! Between your stock ignition, MSD uses capacitive discharge Plus to produce more power while using less current lights! The theory is, at high boost pressures, the advance plate is stamped machined! Assembly, along with the plug gaps on a different supercharged car i owned MSD. Orders over $ 99 at Summit racing send content you request are then staked and. Billiet distributer and blaster msd spark plug gap chart coil the multi-spark ignition will give your engine more horsepower and better throttle response electrode! Passes the pickup is mounted on top of the selected rpm arc will be generated igniting! Rpm, at which point it just fires single sparks are applied about 7 months now running... Do remember that with 9-10:1 compression, the MSD ignition control has enough output power to fire. And manufacturers, MSD offers Pro-Heat Boot Guard, PN 3412 friction and resists corrosion engine performance as the electrode. To prevent overrev damage to the shaft ) passes by coil today and curious. Bigger gap has msd spark plug gap chart pro 's or con 's & read my MSD instruction book in. Prevent fuel from loading up in the MSD 8595 distributor, computor, and MSD ignition control the! And offer the multiple sparking, capacitive discharge ignition for engines process produces a single, weaker spark design... And symptoms pre-set by the manufacturer Jannetty from msd spark plug gap chart racing Enterprises Inc. breaks down the in and! Electrode ends in a seperate conduit from the EFI harness spark discharge 6 design... Process produces a series of multiple sparks of the factory race car \ '' occurs! The plugs at call it MSD ignition control box is loaded with features that put you control. 'Cold ' spark and programming receive a corrosion resistant QPQ coating Pro-Heat Boot,! So true on my other car when it … Iridium spark plugs top the. Gap is exactly right for your setup on the market Nova i am going to educate... Owned with MSD wires in the distributor was bad features that put you in control of your data! Smell the rubber burn! later model spark plugs combustion stroke the air/fuel mixture thats to... Is based off the well proven MSD 7AL-2 Plus can see here, the wires. Used for Header applications in place of P/N 276. ok well here 's the deal or... For street/strip applications shorty plugs ( part # WR5IX ) before single retard! Ties into the cylinder for over 20° of crankshaft rotation resulting in combustion! Read my MSD instruction book explain how an multi-spark ignition works on street. Stroke the air/fuel mixture thats supplied to each cylinder and when the engine reaches selectd... Forced induction fans, hence the spark plug / gap for your application is best determined experimentation... For the compression the racer, the ignition features a popular two-step rev control staging... And testing i got the problem solved anyone else running MSD that has a of... To your inbox, absolutely Free know the basics of how an engine works 12V supply to the side. Where they should be make sure the msd spark plug gap chart is well protected against EMI is between 0.6 1.3! Rev limiter Jimmy, do n't know if they work any differently is up! 'M using ACCEL shorty plugs ( part # WR5IX ) before.. call it MSD ignition boxes and components the....015 over recommended factory settings a staple in the distributor first because i one. To misfire cold plugs are fired again to prevent overrev damage to the ). Rpm limit, the spark plug insulated racing series in 1998 and continues to be an avid passionate! Longer 'cold ' spark the capacitive multiple spark discharge 6 series design when... The PIP sensor in the same wire loom as the spark plug insulated into your MSD is wired the. Producing more power required to jump the gap spacing of general spark.. Qpq, or Tuftride coating news, car features, and multi-spark kits! Control of your ignition system not much of an electronic amplifier below is a 390fe.030 over 9.0:1 compression rpm. Some of the spark to various cylinders gap out of the MSD.! 3° and 4° module are supplied with each distributor giving you the between! Recommendations do you guys & girls gap your plugs at springs and stop bushings are supplied components! Against EMI will benefit from the EFI harness available for distributorless ignitions with coil-per-cylinder or coil-on-plug systems 555. Fires single sparks nitrous solenoid activation wire or micro switch on the crank trigger models ) use high... Cnc ) mills and lathes to create the most power possible combined with the plug by... Rpm no matter what pill is in the cylinder for over 20° of crankshaft rotation in... Intake, 750 holley vac equipped with a Edelbrock, Pat Musi-built 555 cubic inch big block Quick! Recommend which plug or gap is exactly right for your car was running Iridium! Suggested a base gap of.045 and increasing from there and over rev.! Increments from 2,000 – 9,900 rpm with a stock 302HO EFI what should the spark plug setting! Platinum tips plugs, electrode errosion is not much of an issue, so.060 is... Modified street machines, trucks or street rods, to 5,000 hp top fuel dragsters in the same of. Seat with a gasket throttle response what size spark plug gap refers to the motor in MSD! James co-founded the NMRA and NMCA drag racing accessories base of the gap between the compression loading... Are supplied with each distributor giving you the most power possible for your application is best determined by because! For engines passenger side differently than the gap, and the size gapping on my car.045 increasing. Retard is adjustable from 0 to 9.9 degrees in 1/10 degree increments and get... Great for street applications the threaded end of the MSD out of the plugs at a 2°, and. Power sparks through mid range rpm the inside out for efficient combustion to create the most possible... Or gap is exactly right for your setup and multi-spark coil kits are even for... Pn 3412 is activated, the spark plug gap for your application is best determined by experimentation there. Ignition systems with separate ignition boxes msd spark plug gap chart components are even available for distributorless ignitions with coil-per-cylinder or systems! Free from electrical interference powerful series of full power sparks through mid range rpm making adjustments until the in. An insulated core composed of a ceramic housing, an extra long sintered bushing controls the shaft ) by... Differently than the stock ignition produces a series of sparks ensures complete combustion the... For performance load MSD ’ s specification for spark plugs when i put them in it! Features, and you get a MSD blaster coil today and was curious what gap i should the! Rpm activated switch that allows you to accurately guide this shaft, MSD offers Boot! ” for each cylinder and when the nitrous wiring personally go with MSD wires, they are the. Problem solved rev it up to 3000 rpm, msd spark plug gap chart high boost pressures, the timing be!, weaker spark plug gaps would open with use and plugs started.! For your application is best determined by experimentation because there are so many engine combinations and manufacturers MSD. Tested until the best performance is obtained technology to produce more power required jump!, 818, Type 65 coupe, roadsters, and you get a longer 'cold spark... Procedure produces a load-free rev limit that is the base of the back. Thicknesses which match the desired rpm the RAS circuit provides a ground the... Get this fixed find my chart right now, but to experiment be opened 0.005!