are all hei distributor caps the same

The silence is deafening on this question! Looks like maybe they removed the stamped-steel cover on the side and hacked in an older HEI module. Well this one sure crapped out and I've seen plenty other hi-po builds do the same thing. If youre here searching for your next upgrade, you may already be aware of the role the distributor caps play in your vehicles performance. Every HEI distributor I have ever seen hooks up like the factory types. If your low-end cam power band begins at 2,500 rpm (or below), then your advance curve will not be matched to your camshafts power-band, which will result in a significant horsepower/torque loss. Might be opening a bigger can of worms. What 4 pin HEI module you you all use?> - Team Chevelle 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. Myth 10: Not necessarily a myth but a fact. From the feedback here and from others I've spoken with I've decided to forego using the crossfire cap. Physically, it will fit and operate no problem. Early HEIs gained a reputation for giving up above 5,000 rpm, so many enthusiasts avoided them. Long dwell times are used with inductive ignitions to fully charge, or saturate, the coil. The AWD Chevy Corvette E-Ray Has a Cheat Code for Burnouts. Wonder if these are still available as several aftermarket companies were making them. The firing order for a Chevy 350 is 1-8-4-3-6-5-7-2. This myth is only true when compared to stock HEI systems. The 75-80 EFI distributors had a extra 'pod' added to the stalk that had sensors in it and a harness to the ECU. Overall, we were able to reduce HC by 20 percent and CO by almost 30 percent with a stronger ignition system. Feb 9, 2022 Hi all, I'm trying to figure out how to get parts for this distributor. It may not display this or other websites correctly. 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. 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. It gets worse around 60 mph but starts to get better at high speeds. What if we told you that this dream could become a reality - allowing you to push better performance while saving money on fuel? Leaking Brake Fluid On the Ground Inside the Tires. It may not display this or other websites correctly. No reason that can`t be straightened out. HEI Distributor cap and rotor question | Hot Rod Forum Mostbut not allHEI systems have the ignition coil mounted in the distributor cap. (same cap) without any problems. The HEI distributor is still an inductive-discharge ignition, but exchanges points for an electronic device called a module. 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. Combined with a well-designed spark curve, quality spiral-wrapped plug wires, and the proper heat-range spark plugs, its possible to ignite up to 500 reliable horsepower with little more than a hopped-up HEI distributor. Oldsmobile V8 HEI Distributor - Speedway Motors Since both the GM cast iron, and aluminum points distributors use the same points, condenser, vacuum advance type, rotor and cap, the same must be true of the other GM points distributors of the Era, "I've had a few distributor techs tell me the stock iron distributor triggering a CD box is the way to go..". 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. This is an important factor since all the ignition companies we spoke to stressed the idea of properly matching the coil and module. HEI distributor | Chevy Nova Forum TFI and HEI what's the difference? | Off Roading Forums The resistance wire is part of the harness and cuts down battery voltage so the points live longer. The beauty of an HEI is that even stock, it applies much more spark energy than a points-type ignition. i think the last one i bought was 15 bucks. Will a small-block Chevy distributor fit a big block Chevy? Here are some signs that one of your brake calipers is going bad: If the brake caliper fails, the brake pads wear out faster than normal. Make sure the actuating rod is not rubbing against anything on the bowl of the distributor. Haven't looked in awhile, but I believe "Accel" makes one also. Dwell time is the amount of time the primary circuit is complete (points closed). $41.99. Myth 6: There is a specific #1 terminal on the distributor cap. In fact, we suggest .050- to .055-inch with our D.U.I. You are using an out of date browser. These worked well. HEI Distributors - Addressing 10 Common Myths - MotorTrend Last month we looked into the differences between inductive-discharge and CD ignition systems. . Most castings are stable and straight and modern machining techniques aid in narrowing the benefit gap in this respect. All you have to do is to apply a 12-volt hot lead to the distributor and you're ready for the road. PDF HEI Kit Installation Instructions - Summit Racing Equipment it will fit.dont use the origional resistance wire.run 12v keyed power thru 12 guage wire to the coil. In the mid-70s, leaner mixtures for emission reasons demanded greater voltage and more spark energy to initiate combustion. Copyright 2023 Southwest Performance Parts. I had one from Accel about a year ago, and it went bad within a few hundred miles. Myth 7: Because this is a high-compression high-horsepower motor, use solid core plug wires. Chit Chat Area, Anything on your mind goes here. Have you called Performance Distributors? 5.0 out of 5 stars. I had a big block solid lifter motor that would rev to 7K RPM with a stock GM distributor. 4 I noticed that many companies sell a common 4 prong, "GM style" HEI transistor module, and these modules all look to be compatible based on the vehicles they'll work in, and they look to be the same module that's used in the DUI HEI distributor for the AMC 258. While this demands more voltage from the ignition, it also creates a fatter spark in the combustion chamber. Distributor Cap and Rotor Kits - HEI Distributor Type - Summit Racing Myth 4: A stock H.E.I. Actually most HEI systems run well with spiral-core wires. Beyond just the inconvenience of shaking, this can raise safety concerns and create trouble for your brakes. The Fora platform includes forum software by XenForo. Even though it's a cleaner looking cap, if it's not going to work reliably then it's worthless to me. Continue reading to find out more about the 350 Chevy engines' firing order. That leaves you money left over to spend on those cylinder heads youve had your eye on. Are all big-block Chevy distributors the same? - TeachersCollegesj Accel High-Performance HEI Replacement Distributor Small Block & Big Block Chevy (Except 348 & 409) Accel 59107 Part Number: 110-59107 . Is this normal for a chevy hei distributor cap? | Hot Rod Forum 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. For a better experience, please enable JavaScript in your browser before proceeding. Part Number: HLY-566-105. While a good performance module will make a big difference in a stock HEI, matching it with a performance coil allows the system to work as efficiently as possible. Also be sure the wire from the fuse to the igntion switch is also the correct size. The 1967 - 1972 Chevrolet & GMC Pickups Message Board . Z-Library Answers - Ask Questions, Find Answers. What is your truck doing and what have you done to try to fix it so far? my buddies seem to like the propaganda items, so they purchase the high dollar units. The HEI requires high current, 12v at all times. Proform HEI Distributor Review - Ford Muscle Cars Tech Forum 3) The capacitor is failing. Does HEI distributor need ballast resistor? View full details Original price $19.99 - Original price $19.99 This shaking starts at around 50-55 miles per hour (mph). This firing ability also allows wider spark plug gaps-in the vicinity of 0.050-0.055-inch. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. distributor. I'm not sure if "Crossfire" even makes them anymore. Either way, it's for AM, and who does that anymore? Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more! Products from the same brand. You must log in or register to reply here. Generally, this was set at 30 to 32 degrees. What is the best setting for a dishwasher? Chevy 350 Firing Order - How To Find The Right Firing Order? , In stock high voltage high current.got zapped with one once and one whole side of my body went numb. Some of the more high-performance aftermarket modules can draw as much as 7.5 to 8 amps of power. Red Cap; View Details. In the mid-'70s, leaner mixtures demanded greater voltage and more spark energy to kick off combustion. Free shipping when your order includes this part. Pretty much. Even before they were made overseas. A forum community dedicated to all jeep owners and enthusiasts. Keep in mind the HEI needs 12v at all times and the current draw is more than the point setup draws. Thanks, RWTNUTS - Another mystery solved! Bought a new in-the-box 'crossfire' HEI distributor cap from a vendor out in PA in May. Imagine the feeling of driving your car with an engine that runs smoother, more powerfully, and more efficiently than ever before. No experience with them, but I've always heard of them being problematic. Also, the HEI cap is larger, so check clearance between cap and lifter cover. Suffice it to say, by decreasing internal coil resistance, it is possible to decrease the amount of time necessary to charge the coil so it can fire the next spark plug with maximum energy. Generally, stock HEI modules are current-limited to about 4 amps. In effect, causing the HEI housing to act as a heat sinc. Since youve been in it is it switched with a switched with a reluctor above the advance system or is it using a points cam to trigger a sensor Hall or magnetic or points? If the system is working right, you will see no improvement in performance or mileage by switching to HEI. 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. Can I claim half of my ex husbands pension? This was true of the early-model distributors, but it didnt take GM long to modify the modules and coils to offer greater spark energy at higher engine speeds. Find Distributor Caps Male/HEI Cap Style, V8 Engine Type and get Free Shipping on Orders Over $99 at Summit Racing! Estimated Ship Date: Today.Loading Estimated Ship Date: Today. You need to bore some large viewing holes in your old cap and check where the rotor is in relation to the cap terminal when the spark arrives. 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. Bought a new in-the-box 'crossfire' HEI distributor cap from a vendor out in PA in May. Same Day Shipping before 8pm* Price Match Guarantee; Free Shipping over $199* Same Day Shipping before 8pm* Price Match Guarantee; Help Center; 1-800-345-4545 ; . For a better experience, please enable JavaScript in your browser before proceeding. Distributor caps on HEI ignition can burn ou. Take a look and see what you think. All Parts Ship FREE in Continental USA! HEI under cap condenser - GBodyForum Corrected GM HEI Distributor Cap Options? - Chevy Tri Five Forum Meant to also mention that I could switch to a regular lower voltage electronic ignition. To the OP: given how easy it is to get a real GM HEI distributor, why mess with that half-fast unit? Add to Cart. 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. On a small block Chevy V8 engine, the distributor cap firing order is in a clockwise rotation. A premium distributor cap can also help your engine burn fuel more efficiently, providing you with improved fuel economy. The HEI distributor is still an inductive-discharge ignition, but exchanges points for an electronic device called a module. and secure using the same screws from the original distributor. 1985 Buick Regal Limited 107,000 miles as of 4/13/20. Looks like a normal GM small-cap HEI to me. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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. 2024 Chevrolet Corvette E-Ray First Look: The AWD Hybrid Is Quicker Than a Z06! 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. Dave Ray and I have had a couple of very in depth conversations about this very subject, and Cross-Fire caps. In fact, all the aftermarket ignition companies sell matched coil and module sets to ensure optimal ignition operation. Stopped by the dealer one day and the same Bosch filter part number in same box was $45.00. "I've always been crazy, but it's kept me from going insane." Better GM performance modules increase this current to around 5.5 amps. 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. I also have a cross fire in the Nomad that has been on there since 99, so far so good, no misfires, but I have read also there are faulty ones out there. Manage Settings If the tires are out of balance then the steering wheel can shake. My advice? The fourth spark plug wire is next to it, and so on. The lower amperage draw results in a much cooler running HEI coil. The HEI Distributor: Clearing The Confusion And Debunking Myths What are the four sources of disability income? I took it apart because the vacuum advance wasn't working at all, as the guy who setup the engine used too long a screw on the inside advance connection which locked it up. You actually have the patience to read that entire cut & paste ? The only company that ever mounted modules externally like that was Davis Unified Ignitions, and they stopped selling those years ago. 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. If there is power, disconnect the electrical connector and remove the cap. For the Chevy 350, the HEI Distributor Cap follows the same firing order as the engine: 1-8-4-3-6-5-7-2. The symptom of an open one should be increased radio noise, especially on AM stations, not ignition failure. I replaced the module and coil with Pertonix FF3 parts. 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. I was just looking at older topics, and came across this one. Rotor too thin and too close to the grounded internals. . - Waylon, that isn't a condenser, it's a capacitor used to reduce radio interference. But I figured the HEI might give a a few extra MPGs and pay for itself in time. A relay could solve that problem, but there's no reason the stock distributor cant fire that 292. I've never really heard where they peak. An HEI distributor is still an inductive-discharge ignition, but it exchanges the points for a solid-state electronic switching device called a module. Use your Summit Racing SpeedCard today, and get 10% back - Get Details! JavaScript is disabled. Usually, a wheel bearing lasts around 1000 to 1,500 miles after it starts making noises. The Fora platform includes forum software by XenForo. Since this system produces more voltage and amperage output, it demanded a larger-diameter cap to prevent voltage crossfire inside the distributor cap. Brand name for GM's E-core coil ignition. Were passionate about cars - and this drives us to provide world-class support for you every step of the way. Another function the module performs is electronic control of the dwell circuit. 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. Since this system produces more voltage and amperage output than a. This firing ability also allows the use of wider spark plug gaps. Buick Century, Regal, Grand National; Chevrolet Malibu, Monte Carlo/SS, El Camino; GMC Caballero; Oldsmobile Cutlass, 442; Pontiac LeMans, Grand Am, Grand Prix, Bonneville. Small block hei distributors | For A Bodies Only Mopar Forum We make these parts ourselves under the well-respected A-Team brand and then sell them directly to you here on our website. 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. (9), Out of stock Actually, an HEI draws only 2- to 3-amps, compared to the approximate 6-amps an external oil-filled coil draws. Chevy did use a HEI on the '75 and later I6, until it was discontinued in '79. 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. Myth 3: Billet distributor housings are vastly superior. trouble shooting & rebuilding HEI ignitions - Grumpys Performance Garage Replacing Chevy HEI Distributor Cap & Rotor - YouTube 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 292 has a longer stroke than the 250 and will tend to detonate easier at low rpms, so they keep the timing back a little longer. A forum community dedicated to 1955, 1956, and 1957 Chevy owners and enthusiasts. ( weaker springs, lighter weights). 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. Ran fine out of the box. JavaScript is disabled. What benefits can I get for hearing loss? GM used the same switch with points and with HEI. How to replace the cap and rotor on an HEI chevy RV~Please Subscribe, Share, Like & Comment.Thanks for watching :)~Instagram: https://www.instagram.com/clas. Knowing GM, I would expect it to fit the old I6 with no problems. Or, keep reading to discover the Southwest Performance Parts difference if you havent already. From LS front drive kits to SBC water necks, Rochester Quadrajet carburetors, SBC headers, Coyote performance parts, and so much more - weve truly got it all to help you enjoy your car to the fullest. its a part if the distributor, you need it. The timing on the 292 remains retarded longer then advances quicker than the 250. Some motors will idle too fast/rough at manifold vacuum, in which case you will need to connect your vacuum advance to ported vacuum. A help can be filing a relief angle on the tip of the rotor's contact, high energy electricty likes to jump off sharp edges this eliminates that edge. I have this distributor in my 57 . The solid epoxy, in comparison to oil-filled coils also eliminates the possibility of leaks. dont worry about the ignition switch ,the hei draws fewer amps than yu think.go to your fuse panel and yu will notice aside from fuses spade terminals that you can plug a female spade connecter into.find one that has power when the key is turned on and run your power wire to the distributor from there. Call 800.979.0122, 7am-10pm, everyday. I can't remember where my fuzzy slippers are as it is. I replaced the module and coil with Pertonix FF3 parts. With an electronic module, an HEI can safely operate at much higher current loads. 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. A worn shaft will whip around at high RPM and cause the timing to be all over the place.
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