PREPARE TO WIN 2010: B ASIC MICRO SPRINT S ... - Hyper …

1 1 2005-2009 Hyper RACING INC. Basic MICRO SPRINT SetupTHESETUPPHILOSOPHY: BASELINECHASSISSETUPThe baseline setup is defined as the zero point from which allchanges are made and described from. It is basic and is documented, and changes can be made to it, with the pur-pose of recording the resulting gain (or loss) in the setup is changed, it should be in reference to this point. Re-establish the baseline setup at the following times: before the first time on the track each season once every four races or more often if time allows after an accident capable of changing the setupThis baseline setup procedure can be checked it in about tenminutes, and modified it in about five to twenty minutes.

2 Bepatient, make notes, and fill out a setup sheet during theprocess. Once the baseline setup is in the chassis , use thesuggested adjustments on page 8 to fine tune your handling. To determine the measurements, block sizes, offsets, andangles needed for your chassis , you will need a setup setup sheet will include the measurements you will needto complete the setup procedure. If you have a Hyper chassis ,we have very detailed settings and suggested adjustmentsthat will work for your chassis . To obtain a set up sheet foryour Hyper chassis , visit the chassis owner s section of , and choose a setup based on track conditions, orcall the shop. If you do not have a Hyper chassis , consult yourchassis manufacturer for a baseline setup.

3 If this information isunavailable, use these specifications as a starting point, or , and choose a generic setup. MATERIALS two framing squares, measuring approximately 12 x 12 atsmallest to 18 at largest 8 or 25 tape measure 6 or 12 steel ruler set up blocks (found in the Hyper Racing Catalog) or woodblocks cut square and accurate within 1/32 to the lengthsspecified below. These blocks heights will vary dependingon track conditions, chassis type, driver preferences, driverweight, and track your setup sheet to find the correct size blocks to use for your chassis . grease pencil or marker level stands or blocks: make your own with eight 2 x4 x20 pieces of wood, use four on each end of the car 1/4 x at least 6 flexible tape measure (stagger tape) Setup sheet from manufacturer or chassis must be in a race ready condition with all boltstight and all components in place.

4 Make sure there are no bentrods, rod ends, shocks, axles, hubs, or torsion arms. With tor-sion cars make sure the bars spin freely in the bushings, youmay need to use a reamer to remove material from the bush-ings to enable the bars to move freely with no sure all rods can move freely and don t bind up through-out the suspension movement. Choose a level, flat the car by its lower frame rail on level stands orblocks as described in the materials section. The car shouldbe level and high enough for the axles to fall and to fullyextend the shocks. Place the 2-3/4 rear blocks between therear axle and the lower frame rail on the left and right sides ofthe car.

5 Place front blocks under the front axle. The blocksensure that the axle is parallel to the frame. There should beno tension between the coil spring nuts and the coil spring orthe torsion stop jacker bolt and the torsion tube. If there is,turn the adjusters up until the springs or stops are free. Thedriver should not be in the car. The blocks will remain in placeuntil Step 9: Bearing Carrier TimingWith the chassis raised and the 2-3/4 bearing carrier timingsetup blocks under the rear axle, place the framing square onthe floor and slide it up to the axle along side the bearing carrier. Measure the distance horizontally from the center ofthe upper rod end to the square (distance x).

6 Then, measurethe distance from the center of the lower rod end to the square(distance y). If you have anew style bearing carrier with a bubble level in it, adjust the rod ends until the bubble is in the the 4-link suspension (250cc Hyper ), loosen the jam nutson either of the control arms and turn the control arm until thespecifications listed below are achieved. On the wishbone-type chassis (600cc Hyper ), remove the bolts holding the wish-bone to the bearing carrier to make adjustments. Tighten thejam nuts towards the radius rods. Move to the other bearingcarrier and repeat the procedure. For coil-over ( Hyper ), wishbone, and shackle-type torsion( Hyper ) chassis distances x and y should be equal, makingbearing carrier perfectly level.

7 Also at this point, make the leftside wish bone as short as possible for the Hyper chassis , thiskeeps the rear axle as far front as possible providing maximumforward bite. The right side wishbone will end up with the threerod ends extended about 1/2 to get the rear axle trailing arm torsion chassis (RTS, PMP, Stallard), the top ofthe bearing carrier should be tilted toward the front 3 x will be about 5/16 greater than distance y. For trail-ing arm torsion chassis with the brake caliper bolted to thebearing carrier (not on a brake floater), x and y should beequal, to keep the bearing carrier from spinning over center. PREPARETOWIN2010: BASICMICROSPRINTSETUPBy: Mike DicelyTHIS INFORMATION IN THIS DOCUMENT MAY NOTBE REPRODUCED IN ANY WAY WITHOUT THEEXPRESSED WRITTEN CONSENT Squaring the Rear AxleThe smaller or larger blocks can be used to square the rearaxle.

8 As with the bearing carrier timing, the object is to makethe two sides equal by loosening the jam nuts and adjustingthe control arms. Before the rear axle is squared, set the rear axle placementside to side and rough align the rear sprocket to the frontsprocket. On the Hyper chassis the torsion shackles should beclose to the center of the bearing carrier, they definitely shouldnot be bound up on the side plates of the bearing carrier. Adjust the rear panhard bar to move the rear axle side to sideto align the shackles. Then use axle spacers to get the twochain sprockets aligned. If you need to add or take awayspacers, if using a chain guide bock you will need to changethe spacers between the block and the bearing a square against one side of the bottom frame rails andslide it up to the axle.

9 Measure the distance from the square toa known square member on the frame. On most chassis , asquare member is usually the torsion tube rack or rear the ruler level as the distance will change as the ruler istilted. Another method is to put a square on the rack andmeasure to a surface on the rear axle. Make a note of thismeasurement (distance x). Move to the other side of the carand repeat the procedure. Be sure that if measuring againstspacers on side you do the same on other side or subtract thedifference. Make a note of this measurement (distance y). Ifdistances x and y are different, adjust one side to match theother. Before adjusting the rods on a 4-link chassis , use agrease pencil to put a mark on top of both radius rods to helpmaintain bearing carrier timing as you square the rear axle.

10 On the 4-link chassis ( Hyper 250cc), adjust by loosening thejam nuts on both the top and bottom control arms and turningthem both exactly the same amount (1/2 to 1 turn each), tomaintain proper bearing carrier timing. The marks you madeon the control arms will stay aligned at all times. On the wish-bone chassis ( Hyper 600cc), remove the bolt holding the wish-bone to the frame to make adjustments or use the turnbuckleif the car has one. If you choose to remove the rear rod endbolts, turn both top and bottom rod ends the same amount tokeep the bearing carrier timing set. Continue adjusting until themeasurements on the left and right are the same.