In the list above, Ive added the most common models from the Comet brand. With a belt that is too long, the drive system loses its low end power ratios due to belt slippage and its high end ratios because the belt cannot be pulled down into high speed pitch daimeters. As the engine throttle is opened the Driver pulley flanges begin closing together via centrifugal force. 2 stroke was good. The speed reduction ratio is the ratio of the diameter of the belt in contact with the driver and the driven. However, Im unsure if your motorcycle engine would be compatible. For example, if you look at the go-kart belt size chart above and see a belt that has a asymmetric design, it means that from a cross sectional view, the outer borders are angled differently. 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. I know these engines can put out serious power and I don't want anything to be under-specced, I just was wondering if the fully-steel construction was necessary for the engine of my size. The 30 series is rated for 2-8hp Engines and the 40 series is for 8-18hp engines. The model name indicates a series of a particular brand. That said, opt for the 3090 or 2080 Ti if youre using a 750W or 650W power supply. Thank you and regards Glen. Please feel free to get in touch if you have any questions or suggestions on which go-kart belt brands and models to add. Commonly used on Manco go karts- Outboard Go-kart belts come in different types, symmetric and asymmetric. The Moonsun Torque Converter also comes with the required mounting hardware and instructions for easy installation. The normal price for a branded torque converter would cost you about 2 to 3 times more for the same quality. Drive clutch Engagement RPM 2200 RPM (Can be modified), 0.9 : 1 or 1.12 : 1 (for 6 inches and 7 inches Driven respectively), 1 : 1 or 1.24 : 1 (for 7 1/2 inches and 8 1/2 inches driven respectively), 3.13 : 1 or 2.68 : 1 (for 6 inches and 7 inches Driven respectively), 2.43 : 1 or 2.83 : 1 (for 7 1/2 inches and 8 1/2 inches driven respectively). 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. As shown in the diagram. Generally speaking, the lighter the weight, the higher rpm it will require to engage, and the stiffer the spring, the more rpm it will require to engage. Although it has a rated engagement range of 2,350 rpm, it can be adjusted from a minimum of 1,200 rpm to a maximum of 3,100 rpm. The Drive Belt engages, driving the Driven unit pulley at it's largest diameter. So 7.5 driven pulley, but the center to center is 18.5. This torque converter kit is relatively lean, as it only features a driver pulley, a driven pulley and a compatible torque converter 40 Series belt. You should always ensure that you get a torque converter with an aluminium backplate, as it functions as a heat sink. Installation requires an engine crankshaft with a 1/4" keyway and a tapped end. The driven is almost 11 in diameter, and I currently have c2c of 11.5, though I can modify the setup to slightly shorten the c2c. It will work with small engines producing 2-8hp. Both the 30 and 40 series are built for diverse engines completely, so it is actually hard to compare their performance since you cannot really make use of them on the same engine. It features a heavy-duty aluminium backplate for effective heat dissipation and a plastic belt guard that encases the pulleys and drive belt. 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. The system is Neutral--with no belt friction and no drag. The drive clutch. It may not display this or other websites correctly. 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. If you fancy SLI, youll have to jump right back to the 20-series, though. What clutch/torque converter do you recommend? Ive tried to do some research as well but it seems that these dimensions are not easy to find. 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: 2,350 rpmRecommended Engine: 5 hp 9 hp. A torque converter is a variable transmission for go-karts that has the ability to go into overdrive. The Moonsun Torque Converter is the best go-kart torque converter in this list as it strikes the perfect balance between affordability and quality. However, this may require additional springs. The Drive unit pulley flanges, at this point, are closed to provide the largest possible belt contact diameter. August 11, 2022. The best go-kart torque converters in this list come with a compatible belt (30 or 40 Series). 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. Thanks for stopping by and enjoy the read. Hi John, thanks for your comment and youre absolutely right. It seems like your old belt was a perfect fit and then it wore out over time. It is not recommended to do, however, many people use a cheap 30 series on an Upgraded Predator 212, which can produce as much as 12 hp power without any major issues. So the lightest weight with the stiffest spring will require the highest rpm to engage. 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. Can you help? The long-rumoured Nvidia GeForce RTX 40-series is here. Comet 40 Series and Comet 44 Series are Mid Range Torque Converter Components for 8 to 18 horsepower applications. Its made of a durable iron and aluminium material, which is very wear-resistant. Its the perfect torque converter if youre planning on building your own go-kart or replacing an existing unit. The moveable sheaves allow for the pitch diameter, offering infinitely variable power ranges. VERY useful explanation. Each series contains different variants and the series is used as a grouping. I'm also doing a build with a 420cc clone engine. In my opinion, the clones function just as fine for the majority of purposes, yes, the original is made of heavier and better materials, but theyre also two to three times the price. The first thing you should consider when purchasing a torque converter is its application. While hopefully theres more stock for the 40-series than there was for the 30-series graphics cards, the more pertinent question is whether you need to rush out and buy one of the latest Nvidia GPUs. Its important that you ensure that it contains all the parts that are needed. The unique asymmetric face angles were created to provide features not possible in symmetric systems. 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. The minimum pitch diameter is the smallest diameter of pulley's ability; maximum is the largest diameter of pulley's driving ability. 40 Series; Comet; . Save my name, email, and website in this browser for the next time I comment. The rugged 40 series torque converter is composed of heavy walled stamped steel to withstand the extreme . Regardless of how good or how Chinese (my stuff) a 30 or 40 series is, it should always get the expensive Comet belt. The drive clutch is activated by centrifugal force from the engine crankshaft. Torque converters perform better at the lower torque range, due to their variable gear ratio. Is that a custom setup, or installed stock? DESCH March 22, 2017 Clutches Comet 1190 Clutch Driven Pulley Diameter: 7.5Driver Pulley Clutch Bore: 1Belt Top Width: 7/8Engagement Range: 1,600 3,300 rpmRecommended Engine: 8 hp 18 hp, 1 x Driven pulley1 x Driver pulley1 x Drive belt. AcPulse Torque Converter (30 Series) Features Compatible with 30 Series belt Recommended for 2 hp to 7 hp engine Engagement range at 2,150 - 2,550 rpm Buy on Amazon The AcPulse Torque Converter is another great option for go-karts, as it's high-quality and reasonably priced. Ratio range of these systems is typically about 3:1 through around 1:1. Alternatively, measure center-to-center distance and both pulley diameters to find an alternative. The belt on it is a newer belt that does not work! center to center is 12.75. driven clutch is 8.5 . A V shaped belt indicates the unit is a TC88, 20, 40 or 44 Series - SYMMETRICAL Type. The driver and driven must be mounted so that when the system is in the neutral/idle mode the centerline of the "V" of each and also of the belt all are in line and parallel with each other. Can a torque converter be use with a 500 cc engine (or larger)? This makes it extremely versatile for lower torque ranges, climbing uneven terrain and stop-and-go-traffic. $89.95. For instance, if you desire a better take-off or do wheelies, you can do that by simply making the clutch engage when the engine is producing max torque. It can easily adapt according to the engines rpm and has the ability to dynamically change the gear ratio. Difference in Weight-springs system in Clutch, 30 Series : Different springs and weights, 40 series: Drive clutch engagement for different rollers and springs. Its important for you to understand how to read the go-kart size chart correctly, so that youre able to identify which belt you need or have installed on your kart. It would be a major alteration to the chassis or body to make it closer! A belt too short can easily damage not only the belt itself, but also the drive system. The RTX 4080 GPUs are offered in 16GB and 12GB configurations. Good evening. My goal with this site is to share valuable go-kart racing information through guides, articles, reviews, track details and more. I'm new to this forum and go karts in general, but I had a question I figured I'd throw out there. Utter simplicity makes both cost of this equipment and its installation modest and also reduces future maintenance to a negligible minimum without compromise of performance of versatility. I would always suggest getting a direct replacement: 203597A (asymmetrical). Your guide neglects the Comet 780 series. Whether you choose a cheap 20-series model, a still-solid 30-series graphics card, or a new 40-series GPU, Nvidia GeForce RTX graphics cards offer great performance. The model 40/44 series is designed for a lot of applications including the recreational vehicles such as the big three wheelers, ATV's, LTV's and the Economy Transportation Vehicles.