Page 116 - 2019-2020 Racecar Engineering Circle Track Parts and Accessories Catalog
P. 116

SUSPENSION



        Spring Pre-Loader                    ALL64230        Spring Style Pull Bar (Dual Shaft) ALL56367
         Pre-loader allows use of a softer spring rate that is   Torque link uses a coil spring to
        “pre-loaded” at ride height. The pre-load spring will   absorb engine torque
        have less rate increase as the suspension travels. For   and increase
        example, a 150 lb./in. spring can be pre-loaded to 400   traction to rear
        lbs. at ride height, but still only increase at a rate of 150   tires. The twin shaft de-
        lb./in. as suspension travels. The entire unit       sign allows engine torque and brake
        may also be exchanged with another unit              bushings to be adjusted separately. A single red (87 durometer)
        with a different rate spring pre-installed to        poly bushing is included. Other bushings are available for addi-
        allow spring rate changes without affecting          tional tuning options. Unit requires a 5" O.D. x 6-5/8" or 7" tall
        ride height. Commonly used on the rear coil-overs, pre-loader   coil spring, sold separately. Unit is 18-1/2" long overall and most
        UHTXLUHV D  ´ , '  VSULQJ  LQFOXGHV D WKUXVW EHDULQJ VHW DQG ¿WV   commonly used with two 3/4"-16 rods ends (1-RH Female and
        most shocks. Note: Unit is typically installed with slotted inner   1-LH Male) and a 3/4" suspension tube. Subtract 21-1/2" from
        half towards the shock body. Always check components for   center to center of the chassis mounting distance to determine
        possible interference.                               required tube length. 8.5 lbs., without spring.
             Part No.                 Description
            ALL64230           Pre-Loader For 10" Tall Spring
            ALL64232           Pre-Loader For 12" Tall Spring  Bushing Style Pull Bar (Single Shaft)
            ALL64234           Pre-Loader For 14" Tall Spring  ALL56364
         Replacement/Related Components                       Torque link
            ALL11187             Pre-Loader Body Wrench      uses energy
            ALL11188             Pre-Loader Nut Wrench       absorbing
            ALL64212            Replacement 3" Bearing Set
                                                             polyurethane
                                                             bushings to
        Spring/Bushing Style Pull Bar (Dual Shaft)           absorb engine
        ALL56368                                             torque and increase traction to rear tires. Includes two blue (80
                                                             durometer) poly bushings on the engine torque side and a single
         Torque link uses
        a coil spring                                        red (87 durometer) poly brake bushing. These durometers work
        to absorb                                            well for a majority of racers, especially those running open class
        engine torque and                                    mods such as UMP and USMTS cars. Other bushings are avail-
        increase traction to rear tires. The                 able for unlimited tuning options. Unit is 15-1/2" long overall and
        twin shaft design allows engine                      most commonly used with two 3/4"-16 rod ends (1-RH Male and
        torque and brake bushings to be adjusted separately. Unit   1-LH Male) and a 3/4" suspension tube. Subtract 18-1/2" from
        comes with two purple (60 durometer) engine torque bushings   center to center of the chassis mounting distance to determine
        and one red (87 durometer) brake bushing. Other bushings are   required tube length. 9.23 lbs.
        available for additional tuning options. Unit requires a 5" O.D. x
        6-5/8" or 7" tall coil spring, sold separately. Unit is 17" long over-  Bushing Style Pull Bar (Dual Shaft)
        all and most commonly used with two 3/4"-16 rods ends (1-RH   ALL56363
        Female and 1-LH Male) and a 3/4" suspension tube. Subtract
        20" from center to center of the chassis mounting distance to   Torque link utilizes
        determine required tube length. 9.3 lbs., without spring.  energy absorb-
                                                             ing polyurethane
                                                             bushings to absorb
        Spring/Bushing Style Pull Bar (Single Shaft)         engine torque and increase
        ALL56366                                             traction to rear tires. Includes one orange (55 durometer), one
                                                             purple (60 durometer) and one blue (80 durometer) poly bushing
         Torque link uses
        a combination of                                     on the engine torque side. This bushing combination works simi-
        coil spring and                                      lar to a progressive spring; the softer bushings collapse at a fast-
        poly bushings                                        er rate than the harder bushings until the unit is solely working
        to absorb engine torque                              on the hardest bushing. A single red (87 durometer) poly brake
        and increase traction to                             bushing is also included. The dual shaft design allows engine
        rear tires. Ideal for the                            torque and brake bushings to be adjusted separately. Unit is 17"
        experienced driver and a car with radical suspension travel.   long overall. Subtract 20" from center to center of the chassis
        Torque link comes standard with two yellow (75 durometer)   mounting distance to determine required tube length. 10.8 lbs.
        poly bushings on the engine torque side and a single red (87
        durometer) poly brake bushing. Other bushings are available for
        additional tuning options. Unit requires a 5" O.D. x 6-5/8" or 7"
        tall coil spring, sold separately. Unit is 16" long overall and most
        commonly used with two 3/4"-16 rod ends (1-RH Male and 1-LH
        Male) and a 3/4" suspension tube. Subtract 19" from center to
        center of the chassis mounting distance to determine required
        tube length. 8.5 lbs., without spring.


                                                             NICK KURTZ                                          JOHNNY B
        112    2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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