The moveable sheave of the driven unit is forced out, as shown, allowing the belt to seek its smaller, high speed ratio diameter. One engine is stock (6.5 hp), and Im sure the Chinese torque converters (Each engine has one) will work okay with that. My goal with this site is to share valuable go-kart racing information through guides, articles, reviews, track details and more. The driven pulley is 7.5 and therefore requires a 40 Series belt, which is included in the kit. In other words, you should determine what type of go-kart you have or are intending to build. The differences in components are stated below. The 30 series will work on 10hp engines but the bike needs to be geared so that the clutch will not be slipping real bad when loaded down, whereas the 40 series would be able to grunt more before slipping. 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. Comet go-kart belts support driving pulley diameters of 6, 7, 7.5 and 8.5. This refers to the cross section design of the torque converter belt. 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. This means that the pulley and belt system will create a lot of heat, as the crankshaft spins. For instance, predator 212 generates maximum torque of 2500rpm. Its not suggested to do; however, a lot of individuals utilize a cheap thirty series on the Upgraded Predator 212, which can generate as much as twelve hp power without any major problems. Hi, I'm Gerrit. You can modify the weights and springs in the driven and driver to change the engagement RPM for better take-off. No welding is required, only assembling the parts. Required fields are marked *. Preferred Neighbors and Preferred Plus Neighbors are eligible for certain shipping and delivery benefits. So if you're using an unmodified predator 212 or other honda clones with a max power of 6.5hp or lower, then 30 series is for you, if you're using a more powerful engine such as the Predator 420 then go for the 40 series. The belt in the thirty series is asymmetrical, meaning one side is almost flat while the other side has an angle to it, while the forty series belt has symmetry, and both sides are tapered equally. If you make its clutch engage when your engine is producing the most torque, you acquire a good take-off and can also do wheelies. Torque converters are great for custom and homemade go-karts. Therefore, its important that a torque converter is made with high-quality and durable parts. Belts will wear very rapidly, and the uneven wear pressures will in many cases cause severe wear and damage to the clutch assembly. However, this may require additional springs. You'll find the 20 Series, 30 Series, 40 & 44 Series, 500 Series, TC88 Series and the CAT99 Series. I . 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. At it's highest speed (overdrive) and lowest load demand, the Driven unit pulley flanges are wide open providing the smallest possible belt contact diameter. (1) that the engine crankshaft and drive shaft (jackshaft) be aligned perfectly parallel, (2) that the drive clutch be aligned to have the belt run at its highest speed, (3) that the driven unit sheaves open to the proper dimension for the highest speed range, which is assured by using a belt of the proper width and with the proper collective angles, (4) that the center distance between engine crankshaft and driven shaft be correct for the drive belt as specified. Since ratio selection and "down-shifting" is automatic, braking and vehicle control are enhanced. The model name indicates a series of a particular brand. Ive tried to do some research as well but it seems that these dimensions are not easy to find. This comparison is a lot more straightforward as there are applicable graphics cards for the 4080, 3080 and 2080. The moveable sheave is the pulley face that moves in and out to create different pitch diameters for the drive belt. As you may know already, the original US-made torque converters are gonna charge you double the cash, so are they truly worth it? The rugged 40 series torque converter is composed of heavy walled stamped steel to withstand the extreme . Torque Converter 40 Series Kit Clutch Pulley Driver With 1" Crankshaft 1/4" Keyway Fit for 9hp-16hp Engines Fit Predatordune 420Cc Gx 390-5/8" Silver 5.0 (1) $22090 Save 6% with coupon $15 delivery Apr 19 - 20 Only 15 left in stock - order soon. and Function Episode 4 In this episode of our ongoing Torque Converter 101 series, we go a bit more in-depth in our discussion of torque . Hey Rob, thanks for getting in touch. Owner, Researcher, Writer & Editor at GoKartGuide.com, I have 7 pulley with 9 1/2 c2c! The intent is for me to build unit that I can use off road. Absolutely you cannot use a 30 series asymmetrical CVT on that 420. Steps Are Needed To Be Followed For Making A Street-Legal Go-Kart! Our Price: $38.99 . Nvidia RTX is the starting moniker for the current and previous two generations of graphics cards. Most of the torque converters come in a kit that you can easily assemble on to the engine of your go-kart. $89.95. Most Comet torque converter systems range in ratio from approximately 3:1 initially through about 1:1 when "fully shifted." Hi, I'm Gerrit. Replacement belt for Chinese made 30 series torque converters. Are you able to identify the old drive belt make/model? The driven unit and final drive sprocket assembly for driving the track or wheel assembly are located on this shaft. Likely if youre to go with the 30 series, you have a smaller engine such as the predator 212, the best spring-weight system is the one that engages at an RPM at which your engine produces maximum torque. Can you use the 30 series in more powerful engines? If you require a guide on how to install a torque converter on a go-kart you can refer to this video. Thanks. Be the first to hear about new and exciting products, special pricing and incredible deals! The outer circumference (shortened to Outer Cirum. In the go-kart belt size chart) refers to the circumference of the torque converter belt. This size chart also includes important belt size information, such as model, type, part number, pulley compatibility, outer circumference and top width. This guide is easy to understand and contains a step by step process that you can easily follow. Or you can pass me your center to center distance. The 30 series is rated for 2-8hp Engines and the 40 series is for 8-18hp engines. The 40 Series Driver Clutch fits 1 engine crankshafts with a 1/4 keyway. Each individual's unique needs should be considered when deciding on chosen products. 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 rpm 2,450 rpmRecommended Engine: 2 hp 8 hp, 1 x Belt Guard1 x Aluminum Mounting Bracket Plate1 x 10 Tooth Sprocket for #40/41 chain1 x 12 Tooth Sprocket for #351 x 5/8 bore driven pulley 6 diameter1 x 3/4 Driver pulley1 x Full Mounting hardware1 x Drive belt. VERY useful explanation. A torque converter is a variable transmission for go-karts that has the ability to go into overdrive. 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. Installation requires an engine crankshaft with a 1/4" keyway and a tapped end. As by your chart: (203589A 7 or less 24.5 3/4) I can only find in 27 or larger in circumference. These days, you can find his work on outlets like IGN, STACK, Fandom, Red Bull and AusGamers. It can easily adapt according to the engines rpm and has the ability to dynamically change the gear ratio. What torque converter should I use? If not, where should i be looking? An overheating torque converter will lead to increased part and belt wear. The 40 series has rollers and the spring holding all the rollers together, the 30 series has circular weights and circular springs. Engine isnt bolted down yet so I have some wiggle room. The belt on it is a newer belt that does not work! How much HP can a 30 torque converter handle? Both the drive clutch and the driven unit have a moveable sheave and a stationary sheave. In this section, Ill be pointing out some of the aspects that you should consider before deciding which torque converter is best for your go-kart. Manufacturer designation: Aisin Warner 03-71 Applications (calendar years): 1981 Toyota Celica Supra 1982-1985 Toyota Celica XX 2000G/S turbo The belt guard is a nice addition, as it protects the torque converter belt from external damage. I was really hoping to keep it as stock as possible! 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. Basically, you make a spring stiffer to get more power out of the engine at a particular speed reduction ratio. Thanks for writing in! The reason why the width of a belt needs to be measured from the top is because from a cross sectional point of view, the top and the bottom are unevenly wide. With the backplate kits, I believe you need to mount the driver unit inboard, since you cant mount the driven unit inboard. Early adopters will be able to buy the Nvidia GeForce RTX 4090 (available 12 October 2022) or wait a bit longer for the more reasonably priced RTX 4080 graphics cards (out in November). 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 max heat tolerance of the 3090 Ti and 3090 Ti is slightly better than the 4090, but its impressive that the 4090 boasts greater performance albeit with the same power requirements as the 3090 Ti. The belt that is too long will run out of line at the higher engine rpm's. Based on your measurements it should be a Comet 20 Series 203581A or 203582A. After the review section, you can find a buying guide in which we will be discussing several aspects on what to look out for when buying a go-kart torque converter. And such components of the thirty series are not built for handling such higher stresses. As this happens, the speed from the engine transferred to the final drive is increased. Alternatively, measure center-to-center distance and both pulley diameters to find an alternative. GoPowerSports is a large wholesaler and retail distributor of high-quality go-kart parts. In the list above, I've added the most common models from the Comet brand. GTC 40 replaces OEM Comet 40 Series Torque Converters, 8-18hp Engines. Thats the short answer if you were wondering which ones for you. Comet Clutches 40 Series Torque Converters Comet Clutches, a division of Certified Parts Corporation September 1, 2017 Clutches DESCH Planox Clutch PHA-HR DESCH's hydraulic Planox clutch PHA-HR enables rapid acceleration of driven machines. I have a 2020 cheetah go kart with a 208cc motor and I think I have the wrong belt because they keep snapping. Each belt model or series has a subset of belts with different dimensions. It may not display this or other websites correctly. Hey Gerrit- I have a Blast LED 30 series torque converter. I have a tecumseh motor. TAV2 30 Series Go Kart Clutch KitThis torque converter fits a 3/4" shaft and comes with your choice of a 10 tooth sprocket for a 40/41 chain or a 12 tooth sprocket for a 35 chain. It is instead controlled by throttle position and also by a governor. If you want a smaller GPU, consider buying a 3080, especially because their retail prices continue to tumble. Torque Converter Parts. Product Description The Ultimate Bolt On Torque Converter Kit for 8-18 HP engines. In terms of appearance, the way to tell them apart is from the angle in the leaves, the 30 series will be asymmetrical and the 40 series will be symmetrical, apart from that, the 40 series will be much more heavies and have a bigger belt. Thanks for reading and race safely! Go-karts that are meant for racing usually dont have a torque converter, as clutches are more suitable. Seems like an unconventional torque converter size. The buying guide aims to help you with your purchase decision. In the list above, Ive added the most common models from the Comet brand. You should always ensure that you get a torque converter with an aluminium backplate, as it functions as a heat sink. It usually starts out with a great ratio of 2.7 : 1 and can go as low as 0.9 : 1. Torque converters are variable transmissions for go-karts that are attached to the side of the engine. Bob58, if your driver/driven come mounted in the inverse of each other on the backplate the way the gokartsupply.com diagram shows they should be, you're good to go. Sponsored. Just make sure that you also compare the measurements on the product pages before you buy anything to be safe! Pricing will vary based on various factors, including, but not limited to, the customers location, package chosen, added features and equipment, the purchasers credit score, etc. This action, in turn, is squeezing the belt out to a larger Driver unit diameter. As this is a live list, Ill be adding more brands over time. Horizontal shaft 4 stroke I believe you meant to say. So you can do it if youd like to. That said, opt for the 3090 or 2080 Ti if youre using a 750W or 650W power supply. In terms of look, the way to distinguish them is from the leaves angle, the 40 series will be symmetrical, and the 30 series will be asymmetrical; aside from that, the forty series will be much heavier and have a larger belt. Thanks for pointing out that typo! Use a bolt long enough to engage the threads at least 2 1/2 times the bolt diameter. It was purchased in the 60s by my great grand parents! 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 Just keep the original packaging for 2 years, the length of the warranty. The moveable sheaves allow for the pitch diameter, offering infinitely variable power ranges. **DO NOT RUN WITHOUT A BELT** We recommend you use an impact when installing these parts. You can order a 40 series as a complete unit with a backplate that everything mounts on ready to go, or as a separate parts group, ie; the driver, the driven, and the belt, where you build your own jackshaft to carry the driven.
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