If it's a puck-type clutch, you're going to want to use either a billet steel or billet aluminum flywheel because a cast iron flywheel will just chew itself up. Cobra Make, Engine: Everett-Morrison LS1. You need to check with the shop that did your balance work or any of your machine work to find out what flywheel you need to order. The flywheel should be zero balanced and the rotating assembly balanced to itself. Please Select your car type Below: Select Your Car Type to Ensure Proper Part Fitment. your best bet and the smartest thing for you to do is.. find the best machine shop around next take the block, crank, rod's, piston's. The edges of the flywheel have teeth, similar to the edges of a quarter, in order to grab onto the starter motor and the flywheel itself is bolted in between the clutch and the engine, inside the transmission bell housing. Any guidance would be appreciated. Action Clutch specifically designed our Chromoly flywheels for a reduction in weight and inertia for better engine response. off centered off balance. I trust my engine rebuilder implicitly. After the flywheel is well balanced, the clutch assembly can then be mounted on the flywheel with the friction disc very carefully centered. Norton/SPEC:How a specific application responds to driveline inertia depends on vehicle weight, gearing, and engine power curve. Early Access To Exclusive NEW Products, News, Tech & MORE! Were all for getting new parts, but does the flywheel really need to be resurfaced? not trying to be smart here.. but your way over your head in this dept. I can't seem to find anywhere that sells both together so I'm gonna buy em from separate places and save some money. However, not a major concern if you change the flywheel at a later date on these motors. Jerry I am just trying to help..I also did some learning the hard way.. Had two crank grinders running all the time. Check with the vehicle manufacturer for testing specifications. Just my 02c. His passion for anything that is fast, or has a V8, brought him to Power Automedia. A quick image of a SPEC clutch and flywheel combination being manufactured. PRESSURE PLATE BALANCE - Whenever balancing a pressure plate to a flywheel, do not weld on the clutch lever . Do I need to get the flywheel balanced together with a new clutch disk & Pressure plate? and maybe re-balanced any time it is machined for clean-up or weight reduction. x=nIyX\hdw`1JD){58QY$eq_[>6?7|%Y5yVIIz,^u[mU4]urvy]&E$r Wg(G'jyiV%' JavaScript is disabled. I think that bolt in the back of the Flywheel may hit the block anyways. Ideas or links to other posts welcome. The flywheel is an important part of the clutch assembly. For a better experience, please enable JavaScript in your browser before proceeding. Why Is It Important? The LS6 engine is balanced externally with balancing pins in the. All of your factory flywheels were cast iron, six-bolt pattern, and also fifty-ounce imbalance. The balancing machine in the picture is supposed to have the piece being . All Fidanza Performance aluminum flywheels are made from high quality 6061 T6 billet aluminum to deliver the optimum in strength and durability and are often SFI approved for race use just like steel flywheels. Fidanza Performance applies a unique protective coating to identify any remaining oil or residue from its machining process to each of its flywheel and clutch assemblies. This is also why companies manufacture heavier weighted flywheels. Do what you want to. It is machined from the highest quality 6061-T6 or 2024 T3 aluminum, each flywheel is manufactured to deliver optimum tensile strength, great heat dissipation and major weight reduction. They're average on price, around $40-50 to balance. These different types of flywheels do not necessarily affect the clutch assembly or operation, as most are actually designed to work with specific style clutches to avoid any adverse affects. The friction surface material and inertia most directly affect how the clutch feels to the end user, and will ultimately dictate other factors, such as performance and wear life., Our flywheels are designed as a direct OEM replacement, which means they willmeetor exceed all factory tolerances. The factory . SPEC utilizes high carbon-steel and grain-formed forged aluminum to manufacture its flywheel options, which we believe is the ultimate benefit in aluminum-alloy integrity. Jenkins/Fidanza:Both styles of flywheel can be found on the market. Spend another $20 and get the crank checked, piece of mind is worth it. They celibrate their 95th this year. Hi guys. The threaded rod of the static balancer are inside of some .250 wall thickness tubes, which helps reduce deflection and also aids in rotational surface against the bearings on the static balancer. Or it will at least be very costly. I have been retired from there 15 years. Hovsepian/Quarter Master:If an enthusiast plans to re-use the existing flywheel for a new clutch assembly, wed recommend the flywheel be machined to a new tolerance. These types of vehicles require a bit more weight to maintain proper idle and to get the momentum to move off the line. I called Mcleod before calling the shop that did the install and Mcleod said I needed to balance the clutch to the flywheel before . p.s. Doing the rods, pistons and crank with all rotating parts other than disc current price is $250 to $280. There has to be one somewhere. Now that we know what a flywheel does, we can see just how important it is when it comes to the balance of the transmission, clutch, and even the engine assembly. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I'm Jay Mack with latemodelrestoration.com and I wanted to take a few minutes to talk to you about the differences between 1982 to '95 five liter Mustang flywheels. Last theory I heard on the FW and PP was that they could be balanced individually, but it was more important to make sure the flywheel jived with the crank. Technically the 4.6 3V is internally balanced or a "zero" balanced motor. The lighter and smaller it is and the closer the weight is to the rotational axis, the quicker the engine will be able to reach its maximum RPM. Next I will take in a new harmonic balancer to be balanced. I would send ALL of it to a good machine shop & have it balanced together as a unit. However, that same flywheel would warp or even flex under the load of a larger style diaphragm clutch. Which made it a very common upgrade to make the switch to a 10 and 1/2 inch clutch whenever you go to swap out the clutch. I have used a tire balance machine to balance my setup. Some enthusiasts may want the maximum power gains and choose the lightest unit, whereas others may want the most stock-like drivability and choose a stock weight or slightly lighter flywheel. Mustang & Lightning Tech, Articles, How To Videos, 94-04 Mustang Tech, Articles, How To Videos, SVE Flywheel - Billet Steel - 10.5" - 0/28/50oz (79-95) 5.0/5.8, Cast Iron Flywheel - 10.5" - 50oz (79-95) 5.0, McLeod Flywheel - Nodular Iron - 10.5" - 50oz (79-95) 5.0/5.8, Ford Performance Flywheel - Billet Steel - 10.5" - 50oz (79-95) 5.0/5.8, Ram Flywheel - Billet Steel - 10.5" - 50oz (79-95) 5.0/5.8, McLeod Flywheel - Aluminum - 10"/10.5" - 0/28/50oz (79-95) 5.0/5.8, Ram Flywheel - Aluminum - 10.5" - 50oz (79-95) 5.0/5.8, Ram Flywheel - Billet Steel - 10.5" - 28oz (79-95) 5.0/5.8, Ram Flywheel - Aluminum - 10.5" - 28oz (79-95) 5.0/5.8, Ford Performance Flywheel - Billet Steel - 10.5" - 0oz (79-95) 5.0/5.8. For not a lot of money the crank could/should be done also. All rights reserved. In addition, engine balance there are three other important factors to consider. . I sometimes feel I'm wasting my time talking to you guys. Some drag racers prefer the additional weight to aid in launching off the line. The goal is to make a power application the most efficient, as its not always about where the car is driven. This left me with about 14 grams out of balance. Colin Mc Rae MBE 1968-2007.Give a car more power and it goes faster on the straights,make a car lighter and it's faster everywhere. 3912 Whittier BlvdLos Angeles, CA 90023(323) 269-6051. to do the flywheel, back plate diaphram, pulley and damper using my balanced crank. We want to get to know you.Stay connected with us. Late Model Restoration has no affiliation with Ford Motor Company, Roush Enterprises, Eaton, or Saleen. SPEC reduces unwanted weight on a vehicles driveline by reducing mass in its entire clutch assembly, starting with its flywheel. With that in mind we asked each for some strong tips, tricks, and general words of wisdom and information for enthusiasts regarding flywheel selection. What I do could be called silk purse. In most cases, a ring gear can be replaced after starter damage or failure, without the end user having to purchase a completely new unit. Flywheels can be manufactured from any of a variety of materials, including various grades of steel and billet aluminum. Dan Jenkins, Fidanza Performance. Four cyl engines have the worst natural balance characteristics. Your E-Mail and/or password are incorrect. FW Clutch have rebuilt a number of NLA clutches for vintage cars we've worked on. MSC offers new as well as several other suppliers. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. This video shows how I went about balancing my LC Engineering flywheel (35 lb steel) and AISIN CTX-107 pressure plate. The whole assembly is then spun up to measure vibration, and the clutch cover (pressure plate assembly) is then balanced. Copyright 2023 Endgame360 Inc. All Rights Reserved. Feel free to call us 208-453-9800. When spinning the slowly the posts will rock side to side. When it comes to engine and transmission work, it can be a pain to have to do anything twice. This translates to higher exit speeds coming out of corers and higher top-end speed at the end of the straights on the race track. Decent used stuff comes up on the bbs every so often if you are not in a hury You can balance individual components but the balancing isn't perfect. They are made from a durable one-piece billet chromoly steel or chromoly steel forgings. I want to register an account for free right now! It will be set up in a spin balancing machine to be run up to a speed of several hundred RPM to measure vibration. This eliminates any imperfections on the surface and ensures a proper seating position in the clutch assembly, ultimately protecting the assembly and creating a safeguard. Flywheel Tolerance What Is It? The whole assembly is then spun up to measure vibration, and the clutch cover (pressure plate assembly) is then balanced. Granted, it does make for a smoother revving engine, that is assuming that it is out of balance in the first place. For example, a very light flywheel can make a clutch feel more aggressive. Were a forum community dedicated to the Chevy Z06 Corvette. Any factory engine or any rebuilt factory engine is going to take a 50-ounce imbalance flywheel. , I need to take in my pressure plate and flywheel. Not that it matters but FYI I began working in the auto aftermarket in 1965 at age 16 with a work permit. Never built another without balance. I'm sure it will be just fine it was before. However, when you get into the options from all of your aftermarket companies, you'll either have billet steel, billet aluminum, or both in fifty-ounce imbalance, twenty-ounce, and even a complete zero neutral balance. You will need to know what imbalance the motor is that you bought. Was a 50 ounce imbalance flywheel and it's a very common upgrade to make those a 10 and 1/2 inch whenever you go to swap out the clutch. FOLLOW: I keep hearing about balancing and stuff. As long as the clutch and pressure plate bolt up and have the proper static pressure engagement then they will work together. Out of the box, the LCE flywheel was out of balanced around 36 grams (approximately) as I remember. Is this a good idea? This is known as "Detroit Balance". Action Clutch specifically designed our Chromoly flywheels for a reduction in weight and inertia for better engine response. We will safeguard your e-mail and only send content you request. cam and bearings, frt. CA, Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive. These can be found in drag racing applications, and even for marine use. Our flywheels are engineered to improve throttle response, quicker shifting, and reduces clutch wear depending on your drivability. OK, I just found out my engine rebuilder DOES do balancing. Add to that the flywheel and clutch when used on an externally balanced crank need to be balanced with the crank assembly which means the engine has tp come apart. <> Oct 27, 2007. I was able to then swap out two steel clutch bolts with two titanium bolts I had; since each Ti bolt was 5 grams less than the steel bolts, this left me with about 4 grams or so out of balance. If you put a 28 oz flywheel, one that has a 28 oz weight tacked on somewhere on the outer circumference of the flywheel , the motor will vibrate like mad, eventually breaking something. Labor costs are usually the most expensive part of any intensive job, such as changing a clutch, so its recommended to get the flywheel resurfaced every time the clutch is replaced. The style of driving or racing will usually determine the need for a specific style clutch, which will strictly translate to the type of flywheel necessary as well. Sounds like $75 for the job, such a deal. Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum. You may want to go ahead and step up to billet steel. Like many other go-fast parts, the flywheel is not a one-size fits all type of component. which way the piston rings go on the piston as well as how to index them on the piston? We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. An example of this is that some companies use different materials to manufacture flywheel options, or even different lightweight flywheel design styles. How to resurface your flywheel, pressure plate & clutch yourself for free! However, if a flywheel is manufacturedfor an ultra-lightweight application, then we wouldnt recommend resurfacing it. Exactly !!!!! In drag racing, having too light of a flywheel will not slow the engine enough to allow for up-shifts. They have had run out in and out up and down. Cause you know while you're balancing it, you could always take off a few lbs. lol, any race rules where you can "balance a flywheel" please they're shaving off every ounce of weight possible claiming it was necessary for balancing because no one is going to check the damn flywheel, After starting my tear down, i realized how bad my flywheel, PP, and clutch plate really is. My answer is a qualified yes. This is, of course, after the flywheel has been balanced as well. They are balanced and no metal had to come off or be added. It's actually done with bob weights on the journals, with harmonic, flywheel, and clutch installed - and a fudge factor thrown in for the. When choosing a flywheel, the right choice ultimately comes down to the intents and purpose of the vehicle, andthe amount of power the engine is making. This s a big reason but not the only one why serious racers build niter ally balanced engines as then all that needs to be done to interchange parts like the flywheel or flexplate . All our aluminum flywheels are CAD designed/engineered and precision CNC machined from top quality billet aluminum forgings to strict tolerances for optimum performance and reliability. endobj The billet steel will also work great in a stock application if you just have to have the best of the best for your car. I hope when you get it all together and running it does not have any unusual vibrations as you will have wished you took the advice. Achieve better results than static balancing with a simple set up, and the tool below:https://www.emachineshop.com/dynamic-flywheel-balancing/ The down side is i didn't include the cost for these new parts in my engine rebuild buget :0( Oh' well there's no saving these parts, so i gotta get em all new Man this is an expensive hobby! We do offer a lineup of steel flywheels that do not have a replaceable friction surface. Norton/SPEC:Steel, aluminum,and titanium are most commonly used to manufacture a flywheel. The manufacturers we involved in this article have dedicated an immenseamount of research and engineering to develop a high-performance, highly capable flywheel for virtually any application imaginable. On top of that, considering how long it takes to change out a clutch and flywheel set, it's probably a good idea to do everything the correct way the first time around. When suspended with the marks 120 degrees apart, the unit hung to one side. As long as it can be mounted on his balancer. 94 04 mustang The balancing machine in the picture is supposed to have the piece being balanced spun , not too fast maybe 800 - 1000 rpm . An example of this would be a vehiclesdriveline set-up orthe type of clutch being used (pull versus push style). Any usage or mentions of these terms throughout our website and print ads are used for identification purposes only. Norton/SPEC:SPEC flywheels are precision-balanced before shipment, as well as balance-checked after being paired with a clutch assembly, which is also balanced after production. This is the point we are trying to get across. Now from '86 to '95, all the clutches were upgraded to the 10 1/2 inch version that we know today. As it pertains to machining and manufacturing tolerance, parallelism and concentricity are the important measurement standards. Any of your stroker motors or engines that have had custom balancing work done are typically going to take a twenty-eight-ounce imbalance, but it could use a zero neutral imbalance. This route gives you an almost infinite lifespan for the flywheel, allowing it to be rebuilt multiple times without changing the dimensional features required for correct clutch operation. 79 93 mustang Each manufacturer has its own unique process for creating flywheels. Although some parts can be reused when changing a clutch, its often advisable to replace everything with new parts and get the flywheel resurfaced. For starters, it provides the initial inertia to get the engine running and also provides the rotational inertia to keep it going, otherwise, the engine would stall when you lift your foot off the gas. Most flywheels we produce are designed as a neutral, or as close-to-zero balance as possible, and are independently balanced to ensure they meet the criteria set for proper balance weight and are within the allowable tolerances. If you put a 28 oz flywheel, one that has a 28 oz weight tacked on somewhere on the outer circumference of the flywheel , the motor will vibrate like mad, eventually breaking something. Now comes the next question, what materials do you want to use with what? To clear up the confusion, lets discuss the differences between the two. I know this sounds funny because the crank ass'y should be balanced in it's own right. That must be a clutch only price. and this is just the tip of the iceberg. This is done by adding weight to the outer extremities of the cover. Mal stop me man, Hey I'm OK. As you drive a manual transmission car, the clutch is constantly coming in contact with the flywheel when you release the clutch pedal. YES! The SFI Foundation, Inc. (SFI) is a non-profit organization established to issue and administer standards for the quality assurance of specialty performance and racing equipment. Steve (CTR). Most lightweight flywheels can be used in both street cars and race applications. At one time or another, most of us have had to replace our clutch assembly in our vehicles; and we all know what a giant pain that can be. to do the flywheel, back plate diaphram, pulley and damper using my balanced crank. Makes sense. Search Engine Optimization by vBSEO 3.6.0. Another thing to remember is that pretty much all of your aftermarket billet flywheels are going to be SFI approved. These would be resurfaced like a conventional flywheel and do require replacement once the surface gets to its minimum tolerance. Issues can still come up if the two pieces are not balanced together, creating small problems like vibrations or chatter, or even larger issues like crank bearing wear, seal wear, or worse. Life is tough, but it's tougher when you're stupidJohn Wayne. Steve (CTR). endobj Passwords are case-sentive.If you continue to have problems click on the Help Icon for additional options. The flywheel mates to the clutch pressure plate and crankshaft, and the pressure plate can decouple from the flywheel when the clutch is disengaged. states "Hays recommends balancing clutch/flywheel as assembly before installation." The paperwork also states "Balance with crank if possible." Paperwork identifies this next to a problem of "Vibration at high RPM." Norton/Spec:Chassis setup, power curve, gearing, and tires are variables to consider when choosing inertia properties. There are a lot of different components to work with and remove before even getting to the clutch pack and when you finally do, you have to install the clutch and flywheel perfectly and then put everything back together so as to ensure you dont have to do the job again. After rearranging the parts (moved the clutch housing and spring plate marks closer together to offset the flywheel) it hung level. Weve all heard stories of clutch chatter, balancing issues, and possible damage caused to the driveline components. Changing a clutch in a car is never an easy task. When parts for the old balance machine went NLA they spent $28000. Not a lot of $ so you may be good tehre. Every company manufactures its flywheel for different applications, power outputs, and overall drivability. : For registered members this ad will NOT show, Location: Palma de Mallorca, Spain, Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. Due to the loss in mass, these tend to require changes in your driving habits which can be a bit irritating for daily use. After the flywheel is well balanced, the clutch assembly can then be mounted on the flywheel with the friction disc very carefully centered. :cheers: MTI 383 Stroker Motor. I keep a crank on hand that has been balanced by it's self to use as a mandrel to mount front or rear bits for balance. Its a good idea in a high performnce application to balance the rotating assembly with the damper and flywheel. The combination is better known as Atomic Green for its color. The ability of the flywheel to control heat and maintain tolerance can also prolong clutch performance and wear under extreme conditions.

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