are all hei distributor caps the same
A relay could solve that problem, but there's no reason the stock distributor cant fire that 292. Almost died on interstate.limped back home, installed stock HEI cap and problem solved. No experience with them, but I've always heard of them being problematic. One of the misunderstood aspects of points ignition systems is that the ballast resistor (or resistor wire as used in most GM points-type ignitions) just limits voltage. I have bought a Bosch FI gas filter at a chain store for $15.00. According to ACCEL, you should not use the clear dielectric grease on these modules (like MSDs Spark Guard) since this is actually an insulator type of grease that will act as a heat transfer barrier, which could lead to trouble. Every HEI distributor I have ever seen hooks up like the factory types. Big Block Mopar 383/400/440 with HEI Cap; 90 Male Distributor, Multi-Angle Plug Terminals; Includes: Wire Markers; Wire Separators; Dielectric Grease; View Details. HEI Coils also run cooler because they are encapsulated in thermal epoxy, which dissipates heat more efficiently than oil-filled coils. To top it all off, we offer 30-day hassle-free returns with fast and free shipping. The key adjustment for points was to measure the dwell time, which was the length of time, in degrees, that the points were closed. The best way to do this is to use the coil specified by the manufacturer for its specific module. You have two choices, either modify the firewall with a hammer to get clearance, or get a standard size distributor like an MSD or Mallory. A control module and magnetic pickup are mounted in the distributor, in place of a conventional ignition system's breaker points and condenser. Chevy Firing Order Big Block vs Small Block In the mid-'70s, leaner mixtures demanded greater voltage and more spark energy to kick off combustion. So small block chevy firing order he is the same as the normal engines. The only company that ever mounted modules externally like that was Davis Unified Ignitions, and they stopped selling those years ago. In todays world of garbage gasoline, you will probably need to recurve whichever distributor you use to get it perfect, so it really doesn`t make much differance. Most castings are stable and straight and modern machining techniques aid in narrowing the benefit gap in this respect. What would I ask them? Wonder if these are still available as several aftermarket companies were making them. The car has HEI. The symptom of an open one should be increased radio noise, especially on AM stations, not ignition failure. These worked well. Overall it is about 1 1/2 larger than most stock and points style distributor caps. ( weaker springs, lighter weights). This removes the costly middlemen from the equation - and as a result, were able to keep our costs low with no sacrifice in quality. Continue with Recommended Cookies. Avoid the dist in post #2, it does NOT have an adj VA unit. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! It takes some effort to move This myth is only true when compared to stock HEI systems. I bought and ran a $89 Summit-brand HEI ($89 complete with cap and coil and a great Mechanical curve for my car), ran great, low-12's in the quarter mile. How much does it cost to fix a valve cover gasket? I returned mine to Summit for a refund. (9), Out of stock Since this system produces more voltage and amperage output than a. HEI distributor | Chevy Nova Forum Replacing Chevy HEI Distributor Cap & Rotor - YouTube - Benjamin Franklin, Some eBay sellers advertise USA built modules. Me being a purist to my baby of a D150 I couldn't and wouldn't pound the firewall in or cut it to make room so I went to Pertronix. Ran fine out of the box. The "fliter" on the tack wire is also a capacitor to suppress interference to the radio, Uninstall 2020, it is infected with a bad virus. This is in a clockwise rotation. As soon as we replaced the stock module with the matched Pertronix module, the engine instantly responded and was again crisp and fun to drive. As long as you are at TDC on the compression stroke, it does not matter which terminal you use as your number one. Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more! For a better experience, please enable JavaScript in your browser before proceeding. What 4 pin HEI module you you all use?> - Team Chevelle Feb 9, 2022 Hi all, I'm trying to figure out how to get parts for this distributor. The original caps used good quality spark plug wire designed for HEI use, to move the spark to different terminals inside the caps. 2024 Chevrolet Corvette E-Ray First Look: The AWD Hybrid Is Quicker Than a Z06! Last month we looked into the differences between inductive-discharge and CD ignition systems. How to tell if I have an HEI distributor? It gets worse around 60 mph but starts to get better at high speeds. In fact, all the aftermarket ignition companies sell matched coil and module sets to ensure optimal ignition operation. I've seen the replacement parts eliminate the capacitor/condenser for some sort of transistorized electronic stuff. Diagnosing (and solving) distributor problems - Hagerty Media What are the symptoms of a bad brake caliper? JavaScript is disabled. Mine is OK now. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. There are a LOT of home-brewed conversions using externally-mounted GM four pin HEI modules and either points or mag pickups to trigger them. And thats not all. JavaScript is disabled. An open in the capacitor would not affect the circuit between the ignition coil and the module. The guy at the bone yard refused to sell me one that fits a 250 L6 because he says that the parts numbers are different. The right HEI distributor caps can make a world of difference in your vehicles fuel efficiency and engine performance. Distributor Caps | Summit Racing Our HEI distributor caps are the key to unlocking improved fuel efficiency and engine capabilities - and at prices this low, its a no-brainer investment in your car. Generally, this was set at 30 to 32 degrees. Copyright 2023 Southwest Performance Parts. When using HEI, the distributor requires a 12 volt feed. In essence, this means that the number 1 spark plug wire is the number 8 spark plug wire. HEI Distributor Caps Southwest Performance Parts The HEI Distributor cap often contains firing instructions that rotate clockwise for SBC Chevy V8 engines. Accel High-Performance HEI Replacement Distributor Small Block & Big Block Chevy (Except 348 & 409) Accel 59107 Part Number: 110-59107 . So when i was dropping the v8 into my s10 i broke the rotor on the distributor (cap was removed) so my question is, do all HEI distributors use the same cap and rotors? The 1967 - 1972 Chevrolet & GMC Pickups Message Board . Proform HEI Distributor Review - Ford Muscle Cars Tech Forum I replaced the module and coil with Pertonix FF3 parts. Every GM factory style V8 HEI uses the same cap and rotor. Chevy 350 Firing Order - How To Find The Right Firing Order? JavaScript is disabled. The beauty of an HEI is that even stock, it applies much more spark energy than a points-type ignition. Vehicle pulls to one side. Myth 6: There is a specific #1 terminal on the distributor cap. From my understanding, the silicone or jell they use under the cap to seal the spark is what brakes down, and what causes the caps to miss fire. , In stock Many of the items offered in the GM performance parts catalog are rebranded aftermarket parts. they replace a hell of a lot more modules than i do. Myth 7: Because this is a high-compression high-horsepower motor, use solid core plug wires. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Today, there are several aftermarket high- performance modules and coils that can be added to a stock GM HEI distributor to give it excellent spark energy and rpm potential up to 7,000 rpm. As Al said, the switch will be fine. What if we told you that this dream could become a reality - allowing you to push better performance while saving money on fuel? I've never really heard where they peak. While high horsepower supercharged and nitrous-equipped engines can always benefit from those mega-power CD ignitions, most street engines can employ a quality, high-performance HEI ignition without fear of losing power to a weak ignition. Sep 7, 2005 Re: TFI and HEI what\'s the difference? High performance is all about horsepower. A: The DUI Distributor cap is exactly the same dimensions as a GM HEI cap which measures 5 1/4 in diameter where it attaches to the distributor housing. PDF HEI Kit Installation Instructions - Summit Racing Equipment What is the most expensive disability policy? If you open the harness, (just unrap the tape) you will see where that wire is spliced to another wire. The section between the 2 splices is the resistor wire. Follow that wire back towards the firewall connector and you will find another splice. Whether you need help choosing the right HEI distributor caps or youre looking for assistance performing the upgrade, you can count on us to be there for you. Only issue was excessive oiling up top that a lil RTV fixed easily. The key to reducing heat buildup in the module is to use the special white grease supplied with new modules on the mounting side of the module. For the most part there is only minor benefit to a billet distributor housing over a cast housing, at least in terms of better performance. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The spiral core prevents internal wire vibration and prevents electronic interference. 3) The capacitor is failing. So - get yours today! Some of our partners may process your data as a part of their legitimate business interest without asking for consent. The distributors are the same as the SBC distributors. high voltage high current.got zapped with one once and one whole side of my body went numb. Won't fit HEI but maybe fab something similar? Enjoy banner ad-free browsing with Hot Rod Forum Plus. I'm trying to convert to an HEI distributor for the ol' 68 Chevy truck. When I took the car (new engine barely broken in) in to a local speed shop for them to tune the carb on their chassis dyno, they reported that the cap was wired correctly but causing misfiring. Red Cap; View Details. It may not display this or other websites correctly. Get yours today! The fourth spark plug wire is next to it, and so on. Myth 8: The silicone grease you place under an HEI module insulates from heat. The plugs are made to only go in the intended slots on the drivers side of the cap. Most parts store employees probably don't even know what a distributor is anymore. This additional power ensures more complete combustion at both idle and at wide open throttle. #1 I'm trying to convert to an HEI distributor for the ol' 68 Chevy truck. GIFT CARDS. As I said above Cadillac for some reason had to be different. Add to Cart. With an electronic module, an HEI can safely operate at much higher current loads. If youre here searching for your next upgrade, you may already be aware of the role the distributor caps play in your vehicles performance. Only issue was excessive oiling up top that a lil RTV fixed easily. The Fora platform includes forum software by XenForo. Myth 3: Billet distributor housings are vastly superior. In the mid-70s, leaner mixtures for emission reasons demanded greater voltage and more spark energy to initiate combustion. A forum community dedicated to 1955, 1956, and 1957 Chevy owners and enthusiasts. For a better experience, please enable JavaScript in your browser before proceeding. The most common reason for a car to shake is related to tires. Even though it's a cleaner looking cap, if it's not going to work reliably then it's worthless to me. Every GM factory style V8 HEI uses the same cap and rotor. try it without recurving and see what your total advance is as well as the rpm it kicks in and take it from there. Long dwell times are used with inductive ignitions to fully charge, or saturate, the coil. distributor. What more could you ask for? Accel High-Performance HEI Replacement Distributors - JEGS Requires using spark plug wire set with male tower distributor terminals, such as same engine application for 1977 and newer (2 . In 1979, when emissions restrictions were . I started to reply to your question, but really didn't know if the HEI would fit your engine or not, GM made a 4, 6, and 8 cylinder version. Either way, it's for AM, and who does that anymore? This is probably the oldest HEI myth of all. This isn't a "chintzy" overseas knock-off from a no-name company however. Check the coil tower for excessive wear. What this means is that you should not mix and match coils and modules. What makes our auto parts different from the competition - how have we earned the trust of thousands of car enthusiasts like yourself over the past 20 years of being in business? GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Add to Cart . For a better experience, please enable JavaScript in your browser before proceeding. 5.0 out of 5 stars. Feb 6, 2006. Take a look and see what you think. The long stroke also means the power curve peaks at a lower rpm so they need to get full advance sooner. But I don't want to add misery to misery by going with the HEI and then finding out that the old system/wiring can't handle it. Whats the difference between Americas Top 120 and 120+? That leaves you money left over to spend on those cylinder heads youve had your eye on. TFI and HEI what's the difference? | Off Roading Forums Vacuum advance immediately begins to decrease as soon as you accelerate, and at wide-open throttle vacuum disappears. Looks like maybe they removed the stamped-steel cover on the side and hacked in an older HEI module. Crossfire HEI caps? | Chevy Tri Five Forum Dwell time is the amount of time the primary circuit is complete (points closed). Haven't looked in awhile, but I believe "Accel" makes one also. How long will a noisy wheel bearing last? and yes. You need to run a heavy wire (12 gauge) from your ignition to the HEI. Using a Sun emissions test machine measuring hydrocarbons (HC) and carbon monoxide (CO) we were able to reduce the emissions using a high-performance HEI module and coil compared to a stock combination. What are the signs of a bad brake caliper? HEI under cap condenser - GBodyForum Be sure the distributor bushing is not worn, remove the rotor and try to move the shaft side to side and note if the points are moving. General Motors engineers designed the original HEI system to replace the points ignition that had been around for decades. Will a small-block Chevy distributor fit a big block Chevy? But I figured the HEI might give a a few extra MPGs and pay for itself in time. It is wired in parallel with the pink wire going to the HEI module and goes to ground. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! It's an electronic part that's been service so who knows but they sure might be able to point something out that may have led to its life span. What we did find when testing several aftermarket ignitions was that the greater spark energy at idle allowed us to open up the spark plug gap from 0.035-inch to 0.045-inch. Keep in mind the HEI needs 12v at all times and the current draw is more than the point setup draws. I'm not sure about clearance on a Duster.. but the aftermarket big dizzy GM HEI parts are just like the units you'd find on a Chebby internally. They were never factory installed. However, as long as the spark plug wires are connected in the correct order, it usually doesn't matter where position one is on your HEI Distributor. Just make sure you don`t let it start pinging, that`ll kill it quick. $41.99. The top end for the most part was the same. That fixes any problems with them. If not regularly checked and maintained, it can cause all kinds of problems, like poor starting, misfiring, low power and, er, being stuck on the side of the road. my buddies seem to like the propaganda items, so they purchase the high dollar units. Another function the module performs is electronic control of the dwell circuit. For some reason with the introduction of DEFI in 80 they changed the way the cap mounted. I have a 292 inline six. Can I claim half of my ex husbands pension? Z-Library Answers - Ask Questions, Find Answers. The HEI Distributor: Clearing The Confusion And Debunking Myths This is especially true at idle since the energy remains in the module (since little is needed at idle), which adds to the heat problem. Oldsmobile V8 HEI Distributor made by Speedway Motors, for as low as $168.99. How many volts does a HEI distributor need? The advance curve on a stock HEI is for the most part not fully advanced until 4,000-4,500 rpm, which is very slow. I like the way you can just switch out the module easily on the road if one fails. For example, ACCEL offers a stock replacement and two different performance modules for the typical four-pin HEI. ensures a strong and consistent electrical connection between the ignition coil and the spark plugs, guaranteeing that each spark plug receives the correct amount of voltage at the right time. The 2023 NASCAR Clash at the LA Coliseum Was Another Hit, Victory and Disappointment for Corvette Racing at Sebring, Anatomy of a Street Racer: 1967 Chevy Camaro SS 396 Clone, You'll Nova Believe What This Woman Endured to Get Her Stolen Classic Car Back. Testing the GM HEI Distributor A no-spark condition is checked by checking the distributor for power at the connector on the side of the cap. Thanks, RWTNUTS - Another mystery solved! All you have to do is to apply a 12-volt hot lead to the distributor and you're ready for the road. Make sure the actuating rod is not rubbing against anything on the bowl of the distributor. I ran one on my Buick streetrod w/chevy engine for 10 yrs. In one particular situation, we combined a stock replacement module with a Pertronix coil and the engine just seemed to run flatas if the ignition timing were retarded, even though it wasnt. We and our partners use cookies to Store and/or access information on a device. Chevy did use a HEI on the '75 and later I6, until it was discontinued in '79. When using HEI, the distributor requires a 12 volt feed. For the Chevy 350, the HEI Distributor Cap follows the same firing order as the engine: 1-8-4-3-6-5-7-2. Stopped by the dealer one day and the same Bosch filter part number in same box was $45.00. http://www.superchevy.com/how-to/67498-hei-coils-modules/?__federated=1, http://mikeromainjeeptrips.shutterfly.com. Problem 1: Warped Brake Rotors When your brake pads are pressing against a warped rotor, this will cause shaking or vibrations to run through your vehicle. I bought mine on Ebay for under $150.. comes with a set of not horrible plug wires. During the early years of HEI use there morphed a bunch of, well, we'll call 'em myths in regards to these systems-some possibly true, some blatantly false, and some open to interpretation. The points distributor does not run on full 12v the feed wire to the original dist is a resistance wire, and drops the voltage to ~8v when running. Getting a whopping 8mpg out of it. Rotor too thin and too close to the grounded internals. The benefit of wider plug gaps is a more complete burning of the fuel mixture. I can't remember where my fuzzy slippers are as it is. They reported that it had no cracks or other defects but that it obviously had many thousands of miles on it and much corrosion and that the misfiring was a result of the corrosion. But even the ultimate in heads, compression, cam, and the rest wont make power if you cant light the fire. Also be sure the wire from the fuse to the igntion switch is also the correct size. Cap Terminal Style: HEI / Male: Trigger Style: Magnetic: Hall Effect: No: Sync Signal: No: Imagine the feeling of driving your car with an engine that runs smoother, more powerfully, and more efficiently than ever before. It does not have vacuum advance. In addition, low to midrange performance motors (as well as stock motors) benefit from a more intense spark from idle, all the way up the entire rpm range as the fuel is burned more completely. A-Team Performance HEI OEM Distributor Cap, Rotor & Coil Cover Kit CHEVY GM FORD DODGE BLACKThis kit includes an 8-cylinder HEI distributor cap. We've spent way more time talking about this than it takes to just do it. Actually, an HEI draws only 2- to 3-amps, compared to the approximate 6-amps an external oil-filled coil draws. I still say you will save money by getting the stock setup working. Rob Siegel In comparison with modern cars and their solid-state ignition systems, the distributor has to be one of the most infernal parts of an older engine. GM used the same switch with points and with HEI. This was true of the early-model distributors, but it didn't take GM long to modify the modules and coils to offer greatly increased spark energy at higher engine speeds. When you invest in auto parts here from our store, you're choosing a product that's built to last. If there is power, disconnect the electrical connector and remove the cap. Jun 15, 2015 There are many imported (questionable product). If the system is working right, you will see no improvement in performance or mileage by switching to HEI. Small Block Chevy Firing Order [With Diagram] - Nerdy Car
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