The New Polar Pro is the latest innovation in Junior Dragster Clutching. The Pro is a completely redesigned clutch from the Innovative Clutch Experts. Like all Polar Clutches, it has hardened ramps, hardened rollers, billet arms, and chrome silicon wire primary and secondary springs. The Pro also features hex, aircraft quality bolts and nuts. With strategically placed cutouts, the Polar Pro is the most user friendly clutch on the market today. The Ramps and Weights can be changed while the clutch is assembled and attached to the car. By removing the six faceplate hex-headed bolts, the spring can be changed with ease, the spider can be removed, and the entire clutch can be disassembled. The Polar Pro is more than user friendly; it is performance based, as well. Pro features overdriven, dual angle 5.75” billet shieves. The dual angle shieve will better grip the belt as the car launches. The Pro comes with a shim kit, which allows the tuner to adjust the belt to shieve distance and ramp to roller relationship. The adjustability of the shieve to shieve distance allows the tuner to get the perfect spacing for better reaction times and quicker launches. The starting distance of the ramp to roller relationship is also fully adjustable, which will adjust the reaction times and the engagement of the clutch. The Pro Primary comes race ready with 15-degree hi-per radius ramps, 7-gram weights (14 total per arm), and a purple spring. The Polar Pro is not just a primary, but rather a complete clutch system. The Secondary has larger shieves at 7.25” for quicker launches and better 60-foot times. Pro Secondary has a 38-degree helix with a yellow spring in hole 6. With the larger Secondary, the center-to-center distance will change slightly. This center-to-center change should not be enough to cause the need for a new motorplate. The Polar Pro System also comes with the newest innovation from Polar the Outlaw belt. With the latest technology and insight from the World’s Leading Belt Manufacture, Polar has developed a totally redesigned rubber compound and belt profile. Tests have proven this innovative belt to be the most consistent to hit the junior market to date. Boasting a new denser rubber compound (for consistency throughout and longer belt-life), a low profile ‘bottom-cog’ design (for an increased belt contact area and reduce belt slippage), and new ‘top-cog’ design (for a less resistant turning radius and improved belt flexibility), this new 9-inch Center-to-Center belt is truly a work of innovation. The Polar Pro was specially designed with the Tuner and horsepower in mind. With the ease of adjusting the Pro, the Tuner can effortlessly get the maximum out of any combination

The Ultimate in consistancy and tuning capabilities. You cannot buy a better clutch. By simply changing ramps, helix, weights or springs you can modify a clutch to fit your individual car, motor and child, even adjust to your race track conditions. Now comes set up with a purple spring and 18-28-22 ramps!

The Model 340 automatic torque converter system was designed specifically for light horsepower sport vehicals as well as industrial applications. Generally engine driven, this converter is one of the torque sensitive type in which the vehical or driven load has influence on establishing the ratio between driver and driven. In the torque sensitive system design, a cam actuator in the driven reacts to the increase torque demands by downshifting without loss of engine rpm. In this way the engine continues to operate at peak power range for all but most severe loads when it will shift info peak torque range.

Parts Diagrams: Driver, Driven, Engage Chart, Specifications

This is an asymmetrical type torque converter system which means the sheave faces are non-symmetrical. They have different angles. In this case, the movable sheave face is 18 degree while the stationary face is 2.5 degrees for a collective angle of 20.5 degrees. The system is designed to operate on a in-line principal, thus proving the proper alignment for the final drive chain to be on the same side of the vehical as the PTO. This offers some significant advantages to mounting requirements in many cases. The asymmetrical concept- having the 18degree angle on one side requires less sheave face travel to lift the belt to large comparable pitch diameters of the symmetrical system. This makes it possible to force the belt to a diameter within the drive clutch (at high rpm) that exceeds the usual 1:1 ration of standard systems. The TAV2 can actually attain a 10% overdrive.

Parts Diagrams: The Assembly, Specifications