2 0 obj I trust my engine rebuilder implicitly. The heavy race paddle disc should be balanced. 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. cam and bearings, frt. 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. 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. balancing flywheel with rotating assembly | Ford Mustang Forum The companys billet aluminum flywheel options are manufactured to a specific tolerance in-order to provide the entire clutch assembly with a quiet and functional operating quality, while reducing rotating mass on the driveline components. Another thing to remember is that pretty much all of your aftermarket billet flywheels are going to be SFI approved. Weve taken the guess-work out by inviting three industry leading clutch and flywheel manufacturers, Quarter Master, SPEC Clutch, and Fidanza Performance for a question-and-answer session to eliminate the guesswork. CA, Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive. 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. Now from '86 to '95, all the clutches were upgraded to the 10 1/2 inch version that we know today. After the flywheel is well balanced, the clutch assembly can then be mounted on the flywheel with the friction disc very carefully centered. Broken cranks, cracked bell housings, are all a result of out of balance. If i hadn't begun working on my car, my clutch would of only lasted about a month, give or take. They are made from a durable one-piece billet chromoly steel or chromoly steel forgings. If the flywheel and clutch assembly are out of balance, noise, vibration, and harshness levels will dramatically increase,and will inevitably cause extreme damage to the engine, transmission, or driveline. Also replaced axles (Leobro's) No problems of this type before engine drop. 833 likes, 23 comments - Weekend Automotive - Saurabh kmph (@saurabh.kmph) on Instagram: "It was not an easy job to make an Indica run.. @trollkul just nailed it and . Many SPEC aluminum flywheel options, as well as certain steel flywheels feature a replaceable friction surface. A service shop may later add weight by welding small weights to the edge of the cover. C5 Corvette Clutch And Flywheel - Vette Magazine - MotorTrend Someone who has been rebuilding engines for 30 years+ and is still in business should know what they are doing. 289 Flywheel Installation | Mustang Forums at StangNet Is this a good idea? Can't wait to get it installed now. 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. I've been very happy . 1 Piece Rear Main Seal Flywheel Help? | Pirate 4x4 The following information will help you choose the correct flywheel. x=nIyX\hdw`1JD){58QY$eq_[>6?7|%Y5yVIIz,^u[mU4]urvy]&E$r Wg(G'jyiV%' Billet aluminum is suited well for the road course where you can have instant acceleration out of the corners. Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL, Now that I have to order a new shortblock to replace my busted Pond sideoiler by courtesy of Eagle Cranks I have to separately balance the flywheel with the pressure plate attached, and also the harmonic balancer. Hope this helps some. Page 1 of 2 - Flywheel Clutch Balancing Information Help Please - posted in Injection Mini Specific - SPi/MPi: Again hello to all you good mini people and Spi lovers just nudging along with my build, getting to putting the box back on and then the flywheel and clutch As you can see from the pictures the original Spi flywheel is balanced with some serious little holes drilled out in strategic . DIY flywheel & pressure plate (aka clutch cover) static balancing for Location: San Marcos california, The shop is not in ahigh rent district and that probably helps. 94 04 mustang I'm sure you do as well. A heavier flywheel, such as billet steel one, will help to carry the momentum of the vehicle in larger vehicles. Static is a good place to start but spinning the assembly is better also if you have the clutch plate centered in the assembly. I try for the very best result. Your Login Failed. George Hovsepian, Quarter Master. It has a tolerance. Were a forum community dedicated to the Chevy Z06 Corvette. A centre punch works pretty well to mark the parts. After the install I noticed a vibration at 1,500 rpm. 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. For starters, you have your stock style, cast iron replacement flywheels. An example of this would be a vehiclesdriveline set-up orthe type of clutch being used (pull versus push style). I sometimes feel I'm wasting my time talking to you guys. Whether youre searching for a flywheel application for drag racing, autocross, road racing, or a daily driver, well help make your choice easier by discussing different materials and manufacturing processes. The flywheel mates to the clutch pressure plate and crankshaft, and the pressure plate can decouple from the flywheel when the clutch is disengaged. 440 flywheel & clutch questions - For B Bodies Only Classic Mopar Forum 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 . Any imbalance will be felt , like a road wheel out of balance. Steve (CTR). , Just my 02c. Ideas or links to other posts welcome. For the small cost while it is all apart and especially as it is a 1275 3 bearing engine why wouldn't you do it ?????? For not a lot of money the crank could/should be done also. According to Vizards book crank balancing is fine if you have the cash and the time, but not really cost-effective. for a new computer driven machine. When you get into the realm of replacement flywheels, you do have a few options and it can be a little confusing. The boys here get $125. Action Clutch specifically designed our Chromoly flywheels for a reduction in weight and inertia for better engine response. I would balance them before I put them in so you don't have the same problem I'm having. let them pistons reach for the stars. :cheers: MTI 383 Stroker Motor. Not a lot of $ so you may be good tehre. Many applications have little-to-no drivability downsides when utilizing a light flywheel. Balance flywheel/pressure plate yourself - Club Cobra FW Clutch have rebuilt a number of NLA clutches for vintage cars we've worked on. Steve (CTR). I need to take in my pressure plate and flywheel. balancing , align-bore, tell him, you want the competition package done on her. When it comes to engine and transmission work, it can be a pain to have to do anything twice. I can't seem to find anywhere that sells both together so I'm gonna buy em from separate places and save some money. FOLLOW: The flywheel is an important part of the clutch assembly. Living in San Diego for most of his life, Harrison was exposed to a variety of cars at an early age. 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. I'm sure there are more, that's who our shop and myself have used. In addition, engine balance there are three other important factors to consider. Mine is but a fairly standard 1293 (because that was the bore available) but with new bits - cam/lifters/push rods, connecting rods, crank, lightweight flywheel, clutch. All rotating bits will be balanced by a shop that has done A Series engines for quite some timeincluding my 1380at a cost of $125 (price for 4 cylinder engines). 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. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 22 0 R] /MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Should you need information on something not found below, there will likely be a little more research to be done. A neutral balanced flywheel or flexplate means that it isn't balanced out of balance or what is called "Detroit-balanced" like the 400SB and 454BB that are both "externally-balanced" engines. Jenkins/Fidanza:Both styles of flywheel can be found on the market. If you hold a chalk to the side of the flywheel by a fixed mount, it will leave a mark at the same spot as it rotates. <> We will safeguard your e-mail and only send content you request. Your cast iron flywheel, obviously, that's a great stock replacement even for mild bolt-ons. Register now for free! Exactly !!!!! The World's largest 475 rwhp 450 rwtq. From the factory, your '82 to '95 Mustangs came with a ten-inch clutch and was a fifty-ounce imbalance flywheel. This translates to a safer and smoother drivability on the street. 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. Since this is such a massive part with large diameter, it has to be balanced, and the factory usually does a pretty good job of it. The bike is back together and it is very smooth. Here's why: Although the C5 does have its clutch and flywheel attached to the crankshaft, as has been done with all Vettes since the '53, the car's driveline differs from that of its predecessors . If you look at the flywheel amd front pulley they have holes around the outer edge. Achieve better results than static balancing with a simple set up, and the tool below:https://www.emachineshop.com/dynamic-flywheel-balancing/ % Machinist will match mark the PP and flywheel so you assemble them in the same fashion that they were balanced. The balancing machine in the picture is supposed to have the piece being balanced spun , not too fast maybe 800 - 1000 rpm . As received, a new flywheel from the factory should be balanced within some industry standard, like a few grams or a few ounce-inches. Flywheel Alignment and Balance - FreeASEStudyGuides.com 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. Price of balance went up. You may not need much weight then to balance. Proper step and recess dimensions assure clean and consistent clutch actuation and promote maximum clamp load. If that's the case, you can use a neutral balanced flywheel. The whole assembly is then spun up to measure vibration, and the clutch cover (pressure plate assembly) is then balanced. eV/ .c}%&?i.csayH,/~D^U! }X2pF?Ui4+D9?zsz0k n'O|oF}O3I}oa-7|. Website content, text, & images Copyright 2023 LMR.com - All Rights Reserved. Balancing Flywheel and Clutch -- EB-102 That component is the flywheel. Each flywheel option the company offers is manufactured for a specific vehicle application, and different driving habits. As for the clutch disc don't bother with it as it is light and stops in a different place each time. Any guidance would be appreciated. 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. Hey Randy, since the disc can land anywhere, it should be balanced as a sole unit (if not shipped balanced perfectly, doesn't hurt to check). Our flywheels are engineered to improve throttle response, quicker shifting, and reduces clutch wear depending on your drivability. On top of that, considering how long it takes to change out a clutch and flywheel set, its probably a good idea to do everything the correct way the first time around. Little known fact Vizard has driven my race cars and I have a collection of pre publication manuscirpts I have proof read for him. Passwords are case-sentive.If you continue to have problems click on the Help Icon for additional options. Our Chromoly lightweight flywheels have gone through and passed engineering tests up to 15,000-18,000 RPM.All our Chromoly Flywheels are heat treated for extreme durability and saves you money by resurfacing multiple times. Balancing doesn't "have" to be done, and race builders also alter the balance to allow for some positive benefits by overbalancing. Jerry I am just trying to help..I also did some learning the hard way.. After the flywheel is well balanced, the clutch assembly can then be mounted on the flywheel with the friction disc very carefully centered. Cleaning this surface prior totheinstallation is paramount for proper clutch engagement and lifespan. to do the flywheel, back plate diaphram, pulley and damper using my balanced crank. That must be a clutch only price. SPEC reduces unwanted weight on a vehicles driveline by reducing mass in its entire clutch assembly, starting with its flywheel. According to Autoguru.com, the flywheel has a few different purposes. 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. Balancing flywheel and clutch assembly together? Come check out discussions on performance, specifications, modifications, purchasing, maintenance and more! Crank flange bolt pattern/sealing arrangement. Norton/SPEC:All SPEC flywheel applications can be machined or rebuilt by replacing a removeable friction surface. All of our aluminum flywheels include a hardened steel friction surface that is designed to be replaced versus being resurfaced. 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. As such, the flywheel can obtain hot spots due to the excessive friction and heat over time, which in turn can cause vibration whenever its engaging and when the vehicle is under acceleration. 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. Let's make sure we're showing you the right parts! You also need to know for sure what imbalance the flywheel and harmonic balancer are that you have. Colin Chapman. Late Model Restoration has no affiliation with Ford Motor Company, Roush Enterprises, Eaton, or Saleen. PS: Nick Swift came over and drove one of my vintage cars to a VIR Gold Cup win as well. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Our job is to analyze the original flywheel and engineer major improvements. Related problem. A quick weight comparison between the C5's OEM clutch vs the new SPEC clutch shows a respectable 15-pound weight reduction. Chromoly flywheels are an excellent choice for any performance or stock build. ENGINEERED FOR BOTH STREET AND RACE APPLICATIONS. From the factory, your '82 to '95 Mustangs came with a 10 inch clutch. If youve ever purchased a new clutch assembly, youve probably noticed that many aftermarket assemblies do not include a flywheel, and theres a reason for that. Tech: The Engineering Behind A Lightweight Flywheel - LSX Magazine All of your factory flywheels were cast iron, six-bolt pattern, and also fifty-ounce imbalance. Another broken crank would suck!! Had two crank grinders running all the time. This is also why companies manufacture heavier weighted flywheels. Please try again. Norton/SPEC:How a specific application responds to driveline inertia depends on vehicle weight, gearing, and engine power curve. Any factory engine or any rebuilt factory engine is going to take a 50-ounce imbalance flywheel. Balancing a flywheel is very important for rotational integrity and safety, and drivability. As long as the clutch and pressure plate bolt up and have the proper static pressure engagement then they will work together. Check out the full installation of this SPEC Clutch on our autocross C5 Corvette here. ENGINEERED FOR STREET AND LIGHT RACE APPLICATIONS. Technically the 4.6 3V is internally balanced or a "zero" balanced motor. 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. Many enthusiasts can agree that a lightweight flywheel is ideal, simply because they have alower MOI. With certain factory applications,the OEM flywheel can actually be reused by having it resurfaced, creating a new layer of friction material for the clutch assembly and ultimately avoiding the cost of a replacement. 4 0 obj 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. All I have seen are junk. Doing the rods, pistons and crank with all rotating parts other than disc current price is $250 to $280. We do offer a lineup of steel flywheels that do not have a replaceable friction surface. All rights reserved. Just order the clutch/flywheel from DTE. Check out this cutaway of an Optimum-SR clutch from Quarter Master which features a billet aluminum lightweight flywheel. No vibration before or after the 1500 rpm mark. Resurfacing Your Clutch/Flywheel - YouTube Do it right once or continue payingits an easy choice really!! I would look elsewhere and for a knowledgeable Mini person to do my work if i were you, a Mini crank absolutely needs balancing don't do it and you will regret it down the road. Also of mention is that sometimes shops balance the flywheel . p.s. An example of this is that some companies use different materials to manufacture flywheel options, or even different lightweight flywheel design styles. Search Engine Optimization by vBSEO 3.6.0. MSC offers new as well as several other suppliers. Its recommended to balance the entire assembly as a whole after verifying the tolerance level of the flywheel itself. It's actually done with bob weights on the journals, with harmonic, flywheel, and clutch installed - and a fudge factor thrown in for the. 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. Who balanced your previous motor? They have had run out in and out up and down. 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. Hovsepian/Quarter Master: Whether it's a lightweight or neutral weighted flywheel, it must be balanced no question about it. 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. With so many performance flywheel options on the market today, it can be difficult to understand all of the different items available. 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. What is Chromoly? Chromoly is an abbreviation for chromium-molybdenum steel" due to its property of incorporating alloy elements chromium and molybdenum. We know all too well how difficult and confusing it can be to match a flywheel with the appropriate clutch. I recently had a Mcleod Street Extreme clutch along with a Mcleod steel flywheel installed on my 2000 Mustang GT. The tighter or closer to zero the tolerance, the more balanced the unit will be. Flywheel Clutch Balancing Information Help Please Action Clutch Chromoly Lightweight Flywheels have three major benefits: low weight, low inertia and high thermal capacity. Norton/Spec:Chassis setup, power curve, gearing, and tires are variables to consider when choosing inertia properties. If I was you, I would get the short block, take the crank out , at least ,( you should do the pistons too), and find a balance shop. The best place to go for anything Mustang related! (REGISTERED USERS DO NOT SEE THIS POST/AD! That must be a clutch only price. Same as a tyre. Although some parts can be reused when changing a clutch, its often advisable to replace everything with new parts and get the flywheel resurfaced. flywheel. "the disc can land anywhere" - I shoulda thought of that! That said I agree with Steve and Malcolm about balancing the crank. 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! PP and flywheel get balanced as an assembly, the disc does not.