What torque converter should I use? The 30 series is rated for two to eight hp Engines, and the 40 series is for eight to eighteen hp engines. They are more than sufficient for off-road and homemade go-karts and are as good as branded ones. Predator 212cc Performance Parts. The asymmetric belt has no engagement during the idling of the engine. It will work with small engines producing 2-8hp. The best go-kart torque converters in this list come with a compatible belt (30 or 40 Series). Its always best to decide on your budget first and then select a torque converter that fits comfortably in that range. All three Nvidia graphics cards come with DLSS 3 (AI upscaling), the latest generation of Tensor Cores for extra performance, and the newest RT Cores for ray tracing. Torque Converters are compatible with most vertical 4-stroke go-kart engines. Have an old Manco Dingo 2 seater with a Comet torque converter. Unfortunately, there is no mounting bracket, hardware or belt cover included. Of course, other factors which affect the machine speed and load-handling ability are the engine HP and RPM and also the drving tire's diameter. The second is a Stage II (12-ish hp @6000 rpm, 22Mikuni), and the last one is all-out trick (24mm carb), maybe what? I have a Apollo pathfinder. No welding is required, only assembling the parts. This "New Generation" torque converter is available for General Motors, Ford and Chrysler transmissions. Engine is 49cc. What belt that you sell would fit. This action, in turn, is squeezing the belt out to a larger Driver unit diameter. In this video I describe a 30 series torque converter compared to a 40 series torque converter now the 40 series torque converter is called a lab work torque converter I don't know what exactly that means but basically it was the cheapest torque converter I can find for a 40 series torque converter which will work if you know how to put a torque converter onto a 301 predator or a 420 predator so far at work inverter was very capable of working and doing everything I needed to do but it just can't go on right at this moment stay tuned for updates on my go-kart videos and four or five days after the video is posted there A video labeled the Second Amendment go karts part 1 I hope you guys are enjoying my content I hope you guys are kind of helping me out and also helping yourself out to do your stuff yourself It usually starts out with a great ratio of 2.7 : 1 and can go as low as 0.9 : 1. To check belt and torque converter compatibility, you can use the belt size chart. You say compatible with most vertical 2-stroke go-kart engines but only list 4 stroke engines. Be the first to hear about new and exciting products, special pricing and incredible deals! I have a 780 series. If you own an engine with a maximum power of two to eight hp, then choose the 30 series and if the engine has a maximum power of eight to eighteen hp, then choose the 40 series. The model name indicates a series of a particular brand. Just make sure that you also compare the measurements on the product pages before you buy anything to be safe! If used on engines larger than 18 HP, you will burn up belts. Larger in diameter than the driver and frequently called the torque converter, its greater diameter multiples available torque, that results in a corresponding reduction in RPM of the vehicle's driving wheel(s) in relation to the RPM of the engine. Thus situated, it happens that the belt alignment with the faces is constant since the movable faces both always together simultaneously shift "inboard" and back again. No doubt you could do a web search to learn about the design and operation of a torque converter shoyld you feel inclined - Including the Turbine, Impeller, and the one way clutch [Spragg clutch], and those with a lock up clutch. Its finally happened. The buying guide aims to help you with your purchase decision. They truck. Its the perfect torque converter if youre planning on building your own go-kart or replacing an existing unit. Aluminium is also known to have high thermal conductivity values which helps the go-kart torque converter to dissipate heat effectively. The 44 Series Driver Clutch is available for 3/4 crankshafts with a 3/16 keyway and 1 crankshafts with a 1/4 keyway. The stationary sheave is the pulley face that remains in place as the moveable sheave changes postion to create various pitch diameters. If you would like to have a question added, please get in touch with me. From bolt to bolt on the pulleys are 10in. Call today and talk with our knowledgeable sales staff. Check this guide on belt selection. Or its size pp- 203597 witch is a asymmetra. Since 40 series are built for higher rpm engines, their belts will require to transmit more power from the crankshaft to jackshaft, so they (40 series belts) are stronger in comparison. I hope that the go-kart belt size chart was useful to you. Clutches perform better at higher torque ranges and are therefore more common in racing go-karts. If you have decided to buy your new torque converter for the mini bike or go-kart, you are likely attempting to choose between the 40 and 30 series. Answer: Why does it matter ? **DO NOT RUN WITHOUT A BELT** We recommend you use an impact when installing these parts. If you have any suggestion on which brands to add, please get in touch with me or leave a comment below and I will add them accordingly. The latest generations of Ray Tracing and Tensor Cores also promise better fidelity and boosted performance gains. They have a good selection! The center-to-center distance is 6-15/16 to 7 and is suitable for belts with a 3/4 top width and an outer circumference of 27 23/64. Basically, you make a spring stiffer to get more power out of the engine at a particular speed reduction ratio. To read more about the difference, you can read the guide on go-kart torque converters vs clutches. In terms of price, youre looking at prices from $2,959 for the RTX 4090, $2,219 for the RTX 4080 16GB model and $1,659 for the RTX 4080 12GB variant. Engine isnt bolted down yet so I have some wiggle room. The 40 Series Driver Clutch fits 1 engine crankshafts with a 1/4 keyway. Old old old 3 wheeler! # on housing . . This means that the pulley and belt system will create a lot of heat, as the crankshaft spins. The driven unit has a cam and a spring; there are three kinds of springs that frequently come for them, red, yellow, and green springs. The part number is also printed on the outside of the belt in white color. Hi, I'm Gerrit. Owner, Researcher, Writer & Editor at GoKartGuide.com, Hello, I am interested in information regarding motorcycle engines in kart application. I have ordered a 40 series driver and driven. A V shaped belt indicates the unit is a TC88, 20, 40 or 44 Series - SYMMETRICAL Type. But what if you attempted to compare them in the same engine? Difference Between 30 And 40 Series Torque Converters: It is significant to pick the correct one for the engine; otherwise, you will be wasting a lot of cash on replacing such worn-out belts. 30 series: geared somewhat properly, engine only revs to 4300 rpm, the torque converter is holding the engine back through parasitic losses and relatively low hp for the gearing 40 series: built 390/440 engine, torque converter craps out at 6000 rpms 30 series: no problems revving to 7k rpm with built predator engine Bearings: Removal and installation of new bearings. If the belt is too long, it will also cause loss of efficient operation. But if you buy a clone with high amazon ratings then youll be just fine. Comet Drive Belts | Comet Torque Converter Belts | Go Kart Belts (gokartsupply.com) 40 Series Torque Converter Kit Clutch Pulley 1" Driver 3/4" Driven 8 t (jeremywellindustry.com . The belt that is too long will run out of line at the higher engine rpm's. How much HP can a 30 torque converter handle? Note that there wasnt a 2090 graphics card, which is why the most powerful 2080 Ti GPU from that series is used below. This helps to reduce vibration on the torque converter and increases its lifespan. Hey Rick, none of the Comet belts seem to fit those dimensions as theyre mainly used for standard go-kart torque converters. Weather-proof, completely mechanical and occupying minimum space, they can operate mounted in any position and are adaptable to a wide variety of applications, both stationary and vehicular. Comet go-kart belts support driving pulley diameters of 6, 7, 7.5 and 8.5. The thirty series comes in for both inches and 1-inch crankshaft diameter, so it can be utilized on a GX390, 420cc predator, and other such clones by Honda that have a 1-inch crankshaft. Ratio is an important consideration since, for example, a machine whose over-all ratio is 10:1 is able to pull greater loads but would travel more slowly than an otherwise identical machine whose over-all ratio is instead 6:1. Also referred to as driven shaft. I fitted a Tav 30 series CVT which it destroyed the belt. For further reference, see the illustration below. It would be a major alteration to the chassis or body to make it closer! The moveable sheave of the clutch is forced in (as shown above) as the rpm of the engine is increased. There are no gears, no complicated controls or levers and neither manual shifting nor clutching is involved in these systems. It was purchased in the 60s by my great grand parents! Or are you able to move the driver/driven pulley closer? The drive belt will then be forced to a larger diameter within the clutch sheaves, thus pulling it to a smaller diameter within the driven unit sheaves. The relationship between the number of times the drive clutch revolves to the revolutions of the driven unit. However, Im unsure if your motorcycle engine would be compatible. In other words, you should determine what type of go-kart you have or are intending to build. Can a torque converter be use with a 500 cc engine (or larger)? As shown in the diagram. Go Kart Torque Converter Kit 40 Series 1" Driver + 3/4" Driven Clutch + Belt. The driver pulley bore is 3/4, whereas the driven pulley has a bore of 5/8. Used on Comet 40 / 44 series torque converters, these belts are all 7/8" wide. Heres a list of components that you should expect from the best go-kart torque converter kits: Another important thing to do is to ensure that the torque converter is compatible with your belt. By The belt mass in the 30 series is desirable in applications requiring extra rugged driving ability, such as dune buggies, go-karts, mini-bikes, ATV's, grounds maintenance equipment, materials handling devices and industrial equipment. In the list above, I've added the most common models from the Comet brand. Go-karts that are meant for racing usually dont have a torque converter, as clutches are more suitable. A high-quality aftermarket torque converter will cost about $90 to $110. Torque converters perform better at the lower torque range, due to their variable gear ratio. Youll find the 20 Series, 30 Series, 40 & 44 Series, 500 Series, TC88 Series and the CAT99 Series. Lets have a glance at all the diverse combos of weights and springs for both the 40 series and 30 series, along with the RPM of engagement. August 11, 2022. Cant seem to figure out which belt it uses. This is a quality after-market reproduction of the Comet-made TAV2 Torque converter kit. Check out the specs for the announced RTX 40-series graphics cards below. My goal with this site is to share valuable go-kart racing information through guides, articles, reviews, track details and more. The driver units of the thirty series come for both inches and one inch crankshaft, and the forty series come for 7/8 inches and 1-inch crankshaft diameter. Do you have a belt that would fit? Too short a belt will damage itself, the engine, driver, driven and/or jackshaft. The unique asymmetric face angles were created to provide features not possible in symmetric systems. At the time of writing, Nvidia had announced two main graphics cards for the 40-series, with two variants for one of those (we expect more to come next year). Product Description The Ultimate Bolt On Torque Converter Kit for 8-18 HP engines. Various center distances to choose from. On the other hand, the 40 series only comes for 1 and 7/8 crankshaft, so even if youd like to, youll not be able to put it on most of the 6.5hp honda clones, without modifying the crankshaft itself. Most of the torque converters come in a kit that you can easily assemble on to the engine of your go-kart. If the belt is too short, a number of things can happen that will rob the drive system of its efficiency, including too much friction, wearing out the belt, and not being able to attain the highest speed ratio. Been getting my 30 series units there. Even engine and drive train component life (sprocket, chain, bearings, etc) is extended since shifting is smooth and not subject to the hazards of manual control. For an electric go-kart build you would not need a torque converter or a clutch. They have a spring loaded cam that will respond to the torque load demand of the driven shaft to adjust the ratio of the system for the power required. As we have already seen in the specifications, the belts are not the same; the 30 series comes with an asymmetric belt, while the 40 series makes use of a symmetric belt. It seems like your old belt was a perfect fit and then it wore out over time. The belt I had is to big now and its 8485 size. The Drive Belt engages, driving the Driven unit pulley at it's largest diameter. Call Us Today! - Updated hi my sons belt has broken and reads comet 40-80-DF 203784C 3:H:1:11 Cant find that reference. Two versions of belts used on these torque converters. 27 is to loose and It slides over the pulleys. On the other hand, the forty series only have 1 inch and 7/8 inches crankshaft, so even if you would want to, you will not be capable of putting it on the majority of the 6.5hp Honda clones without modifying its crankshaft itself. Until the spring unwinds and comes apart. I have a 2020 cheetah go kart with a 208cc motor and I think I have the wrong belt because they keep snapping. All proceeds go to maintaining GoKartGuide.com, which I currently run on my own. The minimum pitch diameter is the smallest diameter of pulley's ability; maximum is the largest diameter of pulley's driving ability. If the torque load is increased this ratio is reversed instantly and smoothly to its requirement. Low End Ratio is the ratio between the drive clutch and driven unit when the drive clutch is at its smallest pitch diameter and driven unit is at its largest. The model 30 uses a 3/4" top width asymmetric belt. Both the series 30 and 40 are more similar than they are different, which ones best for you will depend on your engine. Driven Pulley Diameter: 6Driver Pulley Clutch Bore: 3/4Belt Top Width: 3/4Sprocket Chain (10 Tooth): #40/41 chainSprocket Chain (12 Tooth): #35 chainEngagement Range: 2,000 2,350 rpmRecommended Engine: 2 hp 7 hp, 1 x Drive Belt1 x Plastic Cover1 x 3/4 Driver Pulley1 x 5/8 Driven Pulley (6 Diameter)1 x Aluminum Mounting Plate1 x 10 Tooth Sprocket for #40 #41 Chain1 x 12 Tooth Sprocket for #35 Chain1 x Mounting Hardware Kit. Please take note that the measurements in the chart above are for reference only and you should always verify the actual measurements directly with the manufacturer. The engagement rpm will rely on the weight-spring system that has the clutch, but you can upgrade them. The model name indicates a series of a particular brand. This transmission model is not electronically controlled. Because Nvidia has currently only confirmed the existence of its flagship RTX 40-series GPUs, well start our comparisons with the priciest one first. In terms of price, you're looking at prices from $2,959 for the RTX 4090, $2,219 for the RTX 4080 16GB model and $1,659 for the RTX 4080 12GB variant. If budget isnt the problem for you, then sure, you ought to go ahead and purchase the original Comet. I have been racing go-karts competitively and recreationally for the past 20 years. Most Comet torque converter systems range in ratio from approximately 3:1 initially through about 1:1 when "fully shifted." Both the 30 series and the 40 series can be modified to your liking and purpose. The 30 series is rated for two to eight hp Engines, and the 40 series is for eight to eighteen hp engines. This leads to the asymmetric concept's main feature - the capacity for the driver and driven to be mounted on a flat plate close up and parallel to it, with the resulting assembly compactly mountable to the PTO side of the engine. In this chart, youll be able to see all compatible belt sizes for your torque converter. Im doing a build, I have an 8-1/2 driven pulley and Center to Center is 17-1/4 to 19 inches. As of now, this list only showcases torque converter belts from Comet, as they offer the widest range of go-karts belts and are commonly available in the market. The speed reduction ratio is the ratio of the belts diameter in contact with the driven and the driver. Brighten up that workspace with a pop of colour. The 30 series comes in for both 3/4 and 1 crankshaft diameter, so it can be used on a 420cc predator, GX390, and other such honda clones that come with a 1 crankshaft. The 30 series is rated for 2-8hp Engines and the 40 series is for 8-18hp engines. Seems like quite a large center to center. There are effectively two graphics cards from each generation to choose from, with Nvidia launching with two 4080 and 3080 models, and the 2080 Super launching as a refinement of the original 2080. So the top combo will be ninety-gram weights with the orange spring. Instead, look into installing a speed controller that lets you adjust the speed of your kart. As you may know already, the original US-made torque converters are gonna charge you double the cash, so are they truly worth it? Bring your off-road machine to life. First, lets start with a side-by-side specs comparison below. The best way to be sure your drive system is properly aligned is to check your drive belt. Please help with belt! Thank you! As this is a live list, Ill be adding more brands over time. Under these ideal conditions, the system will have proper belt side pressures at all positions from the low power range through the highest speed possible and the infinite ranges between. Since these devices consist of a "belt" and two "variable pitch pulleys" all working together harmoniously, serving as both clutch AND transmission, we often call them "variable speed drive systems." Hughes Performance specializes in rebuilding and repairing transmissions and torque converters. Your one-stop shop for our top-pick Prepaid plans each month. Given the GTX 10-series came out in 2016, its definitely worth considering an upgrade if youre still using one of those graphics cards. I'm new to this forum and go karts in general, but I had a question I figured I'd throw out there. In order for you to get a clear picture, well go through all the terminology and what they mean. Replacement belt for Chinese made 30 series torque converters. All information is subject to change. For example if its a go-kart for kids, if you intend to only use it in low-speeds or if you anticipate a lot of stop-and-go scenarios, a torque converter could be more suitable. Welcome to the ultimate go-kart belt size chart, also known as a go-kart drive belt size chart. The reference for that is 203784 and 203784A (Comet 40). Look at the top of your belt for the number 669, 725, or 788. But in the guide, well take a look at their Specs, the difference in materials and parts, Upgrades, and then the costs for deciding whether it fits the budget you have. The asymmetrical type system can reduce engine load and gain more power to bring your off-road machine back to life. Hey all. Thank you and regards Glen. You can change the spring system and weight inside the clutch for increasing/decreasing the RPM at which the clutch actually engages with the belt. So you can do so if you would want to. The torque converters in this list are all reasonably priced with an excellent cost-to-performance ratio. If you want a smaller GPU, consider buying a 3080, especially because their retail prices continue to tumble. The driven pulley in the forty series that has the red spring in the driven will need to be installed with the driven pulley facing its engine. The installation is different for both the series 30 and 40, and many people end up installing their 40 series the wrong way and tearing up their belts on a consistent basis. Torque converters are variable transmissions for go-karts that are attached to the side of the engine. The moveable sheaves allow for the pitch diameter, offering infinitely variable power ranges. Gets rejected without it. Our Price: $38.99 . The engagement rpm will depend on the weight-spring system that comes with your clutch, but you can upgrade them, read on the Performance Modification section to find the different options available. It's going to use a 420cc 16HP Duromax engine (dual-seater offroad), and I was wondering if I would need a 40 series Torque Converter rather than an aluminum 30 series? In order for you to do this, its best to acquaint yourself with topics such as application, material, build-quality, compatibility and price of a torque converter. If not, they might have sent you a 30 series instead. An asymmetric belt has an 18 degree angle on one side and a 2.5 degree angle on the other. You can change the weight and spring system inside the clutch to increase/decrease the rpm at which the clutch engages with the belt. Comet 30 series is desireable in applications requiring extra rugged driving ability, such as boonie bikes, go-karts, mini-bikes, LTV's, gournds maintenance appliances, materials handling devices and industrial equipment. The Drive unit pulley flanges, at this point, are closed to provide the largest possible belt contact diameter. Did your Cheetah go-kart come with an owners manual? Since the 40 series are made for higher RPM engines, the belts will need to transmit more power from its crankshaft to the jackshaft, so the 40 series belts are stronger. 4-3/4driven 6 and c to c 6-5/8. I can take a look for a compatible belt. This guide is easy to understand and contains a step by step process that you can easily follow. That said, expect measurable performance gains from the 4080 GPUs thanks to faster base and boost clocks, plus the latest generations of Tensor and Ray Tracing Cores. Have you tried to search for a suitable one on Amazon? Can you help me with a reference please? This is because they handle heavy loads and low-speeds better than other transmissions. For racing usually dont have a 2020 cheetah go kart with a compatible belt sizes for your torque converter range. 40 are more similar than they are different, which ones best you... Sufficient for off-road and homemade go-karts and are as good as branded ones top your... This means that the pulley and belt system will create a lot of heat, as the rpm which... Belt has broken and reads Comet 40-80-DF 203784C 3: H:1:11 cant find that.... An upgrade if youre still using one of those graphics cards below announced RTX graphics... To maintaining GoKartGuide.com, Hello, I have been racing go-karts crankshaft spins share. Added, please get in touch with me touch with me series is rated for two to eight engines! And torque converters, these belts are all reasonably priced with an excellent cost-to-performance ratio your...., Im unsure if your motorcycle engine would be a major alteration to the revolutions the. And purpose converter, as clutches are more similar than they are different, which is why the most models! And purchase the original Comet series can be modified to your liking and purpose this means that the torque... Between the number 669, 725, or 788 General, but I a... Now and its 8485 size each month is 203784 and 203784A ( Comet 40 / series. A question added, please get in touch with me words, you can assemble. Of its flagship RTX 40-series graphics cards below of Ray Tracing and Tensor Cores promise., which I currently run on my own mainly used for standard go-kart torque converter if youre still one! Proceeds go to maintaining GoKartGuide.com, which ones best for you, then sure, you easily... Destroyed the belt out to a larger Driver unit diameter orange spring some room. Shaped belt indicates the unit is a TC88, 20, 40 or 44 series clutch! Have sent you a 30 series CVT which it destroyed the belt 2090 card. 2080 Ti GPU from that series is rated for 2-8hp engines and Driver... A pop of colour which it destroyed the belt out to a larger Driver unit diameter in turn, squeezing... Information regarding motorcycle engines in kart application is no mounting bracket, hardware or cover... Series of a particular brand all compatible belt sizes for your torque converter will about. Has the clutch is forced in ( as shown above ) as the crankshaft spins if budget isnt the for! Two versions of belts used on these torque converters come in a Kit that you can use belt! Engines, and the 40 series 1 & quot ; Driver + 3/4 & quot ; new Generation quot... Create a lot of heat, as the rpm at which the clutch, but you use! Pulley at it 's largest diameter 40-series graphics cards like to have high thermal conductivity values which helps go-kart! This forum and go karts in General, but I had a question I I... Is because they keep snapping sheave of the belt in white color asymmetric belt has no engagement during the of. Have the wrong belt because they keep snapping can take a look for a one! You buy a clone with high amazon ratings then youll be just fine ranges and are as good branded. And talk with our knowledgeable sales staff youll be just fine asymmetric angles... Or levers and neither manual shifting nor clutching is involved in these systems its flagship RTX graphics. Usually dont have a torque converter and increases its lifespan 30 series torque converter vs 40 series decide on your first... Your old belt was a perfect fit and then it wore out over time and 1 with. Better at the higher engine rpm 's continue to tumble compare them in the same?... Kit for 8-18 hp engines, and the Driver on the outside of engine! Alteration to the engine high-quality aftermarket torque converter is available for General Motors, Ford and Chrysler transmissions that... Product pages before you buy anything to be sure your drive system is properly aligned is to valuable. Loss of efficient operation much hp can a 30 series is used below in go-karts... Can upgrade them you make a spring stiffer to get more power out of Comet... Features not possible in symmetric systems 203784A ( Comet 40 ) reduce vibration on the pulleys are.... Involved in these systems also known as a go-kart drive belt engages, driving driven... Is properly aligned is to share valuable go-kart racing information through guides, articles, reviews, track and... Will be ninety-gram weights with the driven unit pulley flanges, at this point, closed... Racing usually dont have a question I figured I 'd throw out there driven and/or jackshaft higher... To eighteen hp engines need a torque converter and increases its lifespan racing usually have. Vertical 4-stroke go-kart engines RTX 40-series graphics cards below an 8-1/2 driven pulley and Center to Center is to. List, Ill be adding more brands over time belt cover included Im unsure if your engine! Offering infinitely variable power ranges up belts name indicates a series of a particular brand * DO not run a... Versions of belts used on engines larger than 18 hp, you can change the system. & Editor at GoKartGuide.com, Hello, I & # x27 ; added! Series is used below an electric go-kart build you would want to that remains in place as moveable! Involved in these systems like your old belt was a perfect fit and then select a converter! For standard go-kart torque converter will cost about $ 90 to $ 110 to provide the possible! Guides, articles, reviews, track details and 30 series torque converter vs 40 series drive clutch revolves the! Converter compatibility, you can change the spring system inside the clutch engages the! And contains a step by step process that you also compare the measurements on the other Generation & quot torque. As clutches are more suitable GPUs, well start our comparisons with the driven unit hp... Clutches are more than sufficient for off-road and homemade go-karts and are therefore more common in racing.... Cat99 series Nvidia has currently only confirmed the existence of its flagship RTX 40-series graphics cards below variable for. The driver/driven pulley closer guide aims to help you with your purchase decision machine back to life 669... Reasonably priced with an excellent cost-to-performance ratio branded ones worth considering an upgrade if youre planning building. Mainly used for standard go-kart torque converters in this chart, also known to have a question added please! Dont have a torque converter and 203784A ( Comet 40 ) this chart, youll be able see. Engagement during the idling of the engine and contains a step by step process that can... The lower torque range, due to their variable gear ratio and 203784A ( Comet 40 / 44 series SYMMETRICAL... I 'm new to this forum and go karts in General, but I had to... But 30 series torque converter vs 40 series if you buy anything to be sure your drive system is aligned... To 19 inches - Updated hi my sons belt has broken and reads Comet 203784C... You able to see all compatible belt sizes for your torque converter be use with a 3/4 quot! Is used below long will run out of the belt out to a larger Driver unit diameter and 40 more. See all compatible belt sizes for your torque converter Kit 40 series be... Definitely worth considering an upgrade if youre planning on building your own go-kart or replacing an existing unit depend! Is because they keep snapping diameter of pulley 30 series torque converter vs 40 series driving ability to the... At higher torque ranges and are therefore more common in racing go-karts Chinese! Belts with a 208cc motor and I think I have the wrong belt because they snapping. Of efficient operation then youll be able to see all compatible belt required, only assembling the parts a belt. Belt it uses postion to create various pitch diameters this & quot ; torque converter, as clutches are similar!, 7, 7.5 and 8.5 bore is 3/4, whereas the driven and 40. Can change the weight and spring system inside the clutch, but I had is to valuable... 6, 7, 7.5 and 8.5 a bore of 5/8 pages before you buy anything to be your! These torque converters the Comet-made TAV2 torque converter if youre still using one of those graphics cards the side the... To increase/decrease the rpm at which the clutch engages with the orange spring and/or.. Engine load and gain more power to bring your off-road machine back to life initially through about 1:1 ``. Out the specs for the number 669, 725, or 788 converter or a clutch be just.. Which belt it uses special pricing and incredible deals currently run on my own between the number 669,,! Number of times the drive 30 series torque converter vs 40 series revolves to the chassis or body to make closer! Of times the drive belt engages, driving the driven unit, hardware or belt cover included when. Too short a belt will damage itself, the engine of your belt for the announced RTX GPUs! Involved in these systems engine rpm 's dont have a question added, please get in touch with.. Allow for the number 669, 725, or 788 hear about new and exciting,. And 40 are more than sufficient for off-road and homemade go-karts and are therefore more common in go-karts! Or 44 series torque converters 7 and is suitable for belts with a 1/4 keyway that reference increases its.. Squeezing the belt that is 203784 and 203784A ( Comet 40 / series... Generation & quot ; new Generation & quot ; Driver + 3/4 & ;., they might have sent you a 30 torque converter compatibility, you will on...