BEFORE YOU START This is a high-competition, high-quality RC car intended for persons aged 16 years and older with previous experience building and operating RC model racing cars. This is not a toy; it is a precision racing model. This model racing car is not intended for use by beginners, inexperienced customers, or by children without direct supervision of a responsible, knowledgeable adult.
IMPORTANT NOTES – ELECTRICAL • Insulate any exposed electrical wiring (using heat shrink tubing or electrical tape) to prevent dangerous short circuits. Take maximum care in wiring, connecting and insulating cables. Make sure cables are always connected securely. Check connectors for if they become loose. And if so, reconnect them securely. Never use RC models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in fire.
TOOLS REQUIRED Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition) Combination Pliers (HUDY #189020) Allen 2.0mm (#112045- HUDY EXCLUSIVE Limited Edition) Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Socket 5.5mm (#175535 - HUDY EXCLUSIVE Limited Edition) Socket 7.
NOT INCLUDED Follow Set-Up Book: To ensure that you always have access to the most up-to-date version of the Set-up Book you can download the HUDY Set-up Book from their web site at [www.hudy. net] By offering this online version instead of including a hardcopy printed version in kits, you will always be assured of having the most current updated version.
CARPET 1. GEAR DIFFERENTIAL #324911 HARD INCLUDED #324911-G GRAPHITE OPTION 964031 GEAR DIFF. PULLEY #324954 941014 981210 GEAR DIFF.
CARPET 1. GEAR DIFFERENTIAL OIL Rear diff Silicone oil 10.000cSt Fill just above the diff pin. 964031 S 3.5x10x0.2 Fill differential up to the top of the diff pin. USE PROPER AMOUNT OF OIL IN THE DIFFS Use a digital scale to measure the exact amount of oil in the diff. Remember that during operation the diff gets hotter and the heat may allow the oil to expand. If there is too much oil inside it may interfere with the diff operation and damage the internal gears.
DIRT 1. BALL DIFFERENTIAL #325100 XRAY XB2 ACTIVE DIFFERENTIAL - SET 325061 941014 324902 GEAR DIFFERENTIAL LCG - SET 325013 930126 365080 325053 930120 930508 325023 941014 365080 #930220 CERAMIC BALL 2.4MM (12) 325072 305092 BAG 930126 BA 2.
DIRT 1. BALL DIFFERENTIAL 930508 BB 5x8x2.5 NOTE ORIENTATION Square shape orientation on TOP side. DIFF GREASE (HUDY #106211) OIL BEARING OIL (HUDY #106230) Round shape orientation on BOTTOM side. 930120 B 2.4 2.4mm carbide balls (12x) DIFF GREASE (HUDY #106211) 2.0mm 2.0mm #930220 CERAMIC BALL 2.
BALL DIFF BREAK-IN & SET-UP INFO DIRT BEFORE RACING, follow these steps to properly break in the differential. m FULLY TIGHTEN m LOOSEN THE ADJUSTMENT SCREW 2.0m Loosen the adjustment screw 1/2 turn (180° CCW). 2.0m ½ (180° CCW) HOLD THE SPUR GEAR HOLD THE LEFT REAR WHEEL 2x ROTATE THE WHEEL IN THE DIRECTION OF TRAVEL TABLE m 2.0m FULLY TIGHTEN m 2.0m LOOSEN THE ADJUSTMENT SCREW LOOSEN THE ADJUSTMENT SCREW 1/8 TURN (45˚CCW).
CARPET DIRT 2. REAR TRANSMISSION SLIPPER CLUTCH SPUR GEARS 324190 324120 #365875 75T / 48 OPTION 960040 #365878 78T / 48 INCLUDED 364140 #365881 81T / 48 OPTION 364180 365878 364131 980320 324128 364131 324238 930308 364131 324017 GRAPHITE MOTOR PLATE - LCG - 3.
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3. REAR SUSPENSION 306219 SHIM 3x6x2 COMPOSITE ECCENTRIC BUSHINGS 1º 0.5º 0º 0.5º 1º DIRT RR INITIAL SETTING COMPOSITE ECCENTRIC BUSHINGS 1º 0.5º 0º 0.5º 1º 2mm (TOE IN = 4º / ANTI-SQUAT = 2º) 903308 CARPET SFH M3x8 INITIAL SETTING (TOE IN = 4º / ANTI-SQUAT = 2º) RF NOTE ORIENTATION ARM ARM If the suspension arm does not move freely use a HUDY Arm Reamer to size the holes of the arms 3.0mm THREAD LOCK (all screws) Arm Reamer 3.
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3. REAR DRIVETRAIN 2x CARPET DIRT 902316 L=R 323044 302665 362651 322612 362280 362651 323382 303123 306219 362280 323354-H 980210 362316 980210 902205 325314 DIRT 325315 CARPET 941014 962030 902312 940513 365360 325340 962031 327321 961025 BAG 302665 303123 306219 322612 323044 323354-H 323382 325314 325315 325340 327321 362280 362316 2x 902254 362651 365230 365360 902205 902254 902312 902316 940513 941014 961025 962030 962031 980210 COMPOSITE BALL JOINT 4.
3. REAR DRIVETRAIN 2x CARPET DIRT NOTE ORIENTATION INITIAL SETTING L=R 303123 SHIM 3x6x2 2mm 2mm INITIAL SETTING 902312 SH M3x12 L=R #323381 ALU REAR HUB PLATE FOR MULTI ADJUSTABLE UPRIGHT - SWISS 7075 T6 INITIAL SETTING #323400 REAR ANTI-ROLL BAR 1.0mm SET 901306 ANTI-ROLL BARS 902316 SH M3x16 #362470 1.0mm OPTION #362471 1.1mm OPTION #362472 1.2mm OPTION #362473 1.
3. REAR DRIVETRAIN 2x CARPET DIRT L=R 306219 SHIM 3x6x2 3x6x0.1mm (use for MEDIUM suspension arm) Ensure that the rear upright moves freely. Check for free movement. 3x6x0.3mm (use for HARD or GRAPHITE suspension arm) 902254 SH M2.5x4 961025 S 2.5 962030 3x6x2mm S 3x6x0.3 3x6x0.1mm 3x6x0.3mm 962031 S 3x6x0.1 TIGHTEN GENTLY S 2.5 S 2.5 TIGHTEN GENTLY 2x L=R 362280 CON.
CARPET 4. FRONT ASSEMBLY DIRT 322573 FRONT LOWER ARM MOUNT #322310 ALU 26º OPTION #322311 COMPOSITE 26º INCLUDED #322312 BRASS 26º OPTION #322313 ALU 23°/29° OPTION 930306 902306 322590 #321211 SUSP. HOLDER BRACE 23°/29° OPTION #322314 BRASS 23°/29° 940510 322590 OPTION #321211 SUSP.
4. FRONT ASSEMBLY CARPET DIRT 903308 SFH M3x8 Tighten the screws 1-2-3 but do NOT tighten them completely. Finish tightening in order 1-2-3. 902308 SH M3x8 903308 SFH M3x8 903310 SFH M3x10 903318 SFH M3x18 FRONT LOWER CHASSIS BRACE #321262-M MEDIUM OPTION #321262-H HARD INCLUDED MEDIUM - For very-low, low & medium traction. Generates more traction. HARD - For high- & very-high traction tracks. More stable and less traction on front susp.
CARPET 4. FRONT ASSEMBLY NOTE ORIENTATION DIRT STEERING PLATE 322590 #322573 SHIM 3x4.7x1 1mm OIL BEARING OIL (HUDY #106230) INCLUDED OPTION #322572 OPTION ALU COMPOSITE - Easy to drive, more forgiving, less steering. ALU - More aggressive, more steering, more precise steering. OIL STEERING ARMS NOTE ORIENTATION #322514 902312 SH M3x12 HARD INCLUDED #322514-G GRAPHITE OPTION #322512 OPTION ALU COMPOSITE - Easy to drive and more forgiving.
5. FRONT SUSPENSION CARPET DIRT 322220-H 902254 961025 327210 902254 303122 363241 961025 322111-H 321210 327220 332660 903316 322040-H 961025 902254 321200 902312 903316 903308 903316 332660 322611 306219 902308 302665 362291 322210-H 363241 362650 322293 960030 325241 902205 359050 362651 362280 902312 362290 302665 359050 365356 322611 322280 980210 322250-H WHEEL HEX HUBS 12MM FRONT ROLL CENTER HOLDER C-HUB #365360 +4.
5. FRONT SUSPENSION CARPET 2x DIRT NOTE ORIENTATION L=R 902254 SUSPENSION ARM LEFT ARM = RIGHT ARM SH M2.5x4 #322111-M MEDIUM OPTION #322111-H HARD INCLUDED #322111-G GRAPHITE OPTION NOTE ORIENTATION MEDIUM - For very-low & low traction - For medium & high traction HARD GRAPHITE - For high & very-high traction 961025 S 2.
5. FRONT SUSPENSION 2x CARPET ➊ L=R DIRT MORE OFF-SET LESS OFF-SET WHEEL HEX HUBS 12MM #365360 +4.5mm 902205 6 slots OPTION #365359 +3.75mm 5 slots OPTION SH M2x5 #365358 +3.0mm more steering #365357 +2.25mm 3 slots OPTION ➌ #365356 +1.5mm 981210 P 2x10 2 slots INCLUDED #365355 +0.75mm 1 slot ➋ 2x less steering 4 slots OPTION OPTION #365353 0mm 0 slots OPTION #365354 - 0.75mm Lightw. OPTION #365361 -1.25mm Lightw.
5. FRONT SUSPENSION CARPET DIRT ROLL CENTER LINKS 2x Install the pivot balls with Professional Multi Tool (HUDY #183011) L=R NOTE ORIENTATION 6mm THREAD 8mm THREAD THREAD 53.5mm THREAD 2x ROLL CENTER LINKS 2x 362280 L=R NOTE ORIENTATION L=R CON.
6. SHOCK ABSORBERS CARPET DIRT PISTONS DETAIL 2 holes 2 holes (1.6mm) (1.7mm) 368010 965023 368031 Thick Shim 368260 363240 902205 0 holes (Create custom holes) (0mm - use required drill pin) Thick Shim Thin Shim 368220 970120 306219 (OPTION) 970080 368261 368221 2 holes 2 holes (1.6mm) (1.7mm) 0 holes (Create custom holes) (0mm - use required drill pin) 972031 These pistons can NOT be used in shocks without making the custom holes by yourselves.
6. SHOCK ABSORBERS CARPET 4x ➋ ➌ 965023 There are two different thickness shims, use them as shown. Use the same procedure when building both front and rear shocks. ➊ C 2.3 FRO NT 2 holes (1.6mm) 970080 O 8x1 2x - SH ORT DIRT THICK Shim SHO CK R O-ring OD THIN Shim 972031 O 3x2.1 INITIAL PISTON SETTING O-ring 2 holes (1.7mm) 2x ➌ ➊ ➋ REA R- LON G SHOCK DAMPING SHOCK PISTONS SHO CK R OD #306219 DOWNSTOP SHIMS IMPORTANT THICKER shim used, GREATER downstop is achieved.
6. SHOCK ABSORBERS CARPET DEFAULT SHOCK REBOUND SETTING 0% REBOUND DIRT Follow the steps below to set the shock rebound to the default setting of 0%. TIGHTEN FULLY 902205 SH M2x5 CARPET FRONT (SHORT) Oil 650cSt REAR (LONG) Oil 500cSt DIRT FRONT (SHORT) Oil 650cSt REAR (LONG) Oil 500cSt 3~5x UP & DOWN ➊ ➋ ➌ ➍ ➎ Extend the shock shaft completely. Fill the shock body with the shock oil. For the FRONT shocks (short) use 650cSt oil. For the REAR shocks (long) use 500cSt oil.
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7. FINAL ASSEMBLY CARPET DIRT Install the pivot balls with Professional Multi Tool (HUDY #183011) 901308 SB M3x8 4mm 1.5mm HUDY ALU SERVO HORNS 303127 SHIM 3x6x4 NOTE ORIENTATION Use appropriate servo arm: K - (23T) KO Propo / JR / Sanwa / Multiplex H - (24T) F - (25T) Futaba / Hitec 362280 CON.
7. FINAL ASSEMBLY CARPET DIRT L=R ANTI-ROLL BARS 901303 SB M3x3 #322472 1.2mm OPTION #322474 1.4mm INCLUDED #322476 1.6mm OPTION #322478 1.8mm OPTION 6mm THREAD L=R DETAIL 1.6mm 901304 SB M3x4 902308 SH M3x8 DETAIL DETAIL Check for free movement 3x14mm DETAIL 902312 SH M3x12 3x12mm 3x12mm 902314 SH M3x14 FRONT UPPER DECK #321160-M MEDIUM OPTION #321161-H HARD INCLUDED MEDIUM - For very-low, low and medium traction tracks. Generates more traction, absorbs bumps better.
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7. FINAL ASSEMBLY CARPET DIRT XRAY PINIONS (48P) #365718 18T #365719 19T #365720 20T #365721 21T #365722 22T #365723 23T #365724 24T #365725 25T #365726 26T #365727 27T #365728 28T #365729 29T #365730 30T #365731 31T #365732 32T #365733 33T #365734 34T #365735 35T #365736 36T #365737 37T #365738 38T 902306 SH M3x6 NOTE ORIENTATION Pinion & Set screw (NOT INCLUDED) Motor (NOT INCLUDED) DETAIL Adjust the motor so the pinion meshes with the spur gear properly. Make sure the gear mesh is not too tight.
7. FINAL ASSEMBLY CARPET DIRT Receiver (NOT INCLUDED) Speed Controller (NOT INCLUDED) Double-sided Tape HUDY #107875 (NOT INCLUDED) To ensure correct functioning of the battery holder, do not overtighten the screw; the holder must be able to move. To ensure correct functioning of the battery holder, do not overtighten the screw; the holder must be able to move.
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7. FINAL ASSEMBLY CARPET ➊ Before cutting and making holes on the BODY, put the unpainted body on the chassis to 902306 SH M3x6 ➎ Paint the body using paints formulated for polycarbonate bodies. confirm the mounting position and location for holes and cutouts. Before cutting and making holes on the WING, put the unpainted wing on the wing holders to confirm the mounting position and location for holes and cutouts. ➏ When the paint is dry, remove the masking.
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MAINTENANCE SHOCK MAINTENANCE The most important maintenance task for keeping consistent shock performance is refilling and bleeding them correctly. If built correctly, it will not be necessary to re-build them often. Replacing warped/hard o-rings, scarred piston rods, or shaved/split/loose composite upper and lower ball joints are also important. • For club racing, it is recommended to check the shocks for air inside before each race and only re-fill and bleed them if necessary.
XT2'21 SET-UP SHEET VER. 1 ©XRAY 2020 APPLIED APPLIED RACE LONGER BUSHINGS TRACK DATE LAPS BEST LAP TIME sec TRACK SIZE OPEN STEERING BLOCK MEDIUM HARD FINAL POSITION QUALIFYING POSITION UPPER SHOCK POSITION 32 1 SHIM CAMBER LINK LOCATION 2 1 GRAPHITE ......................................................................
199183 104004 108201 108205 108203 108204 106000 + 106036 109801 107701 181090 107740 107742 181030 293110 42 104004 105500 105520 106000 106036 107090 107601 107701 107740 107742 107855 107880 HUDY AIR VAC - VACUUM PUMP - 1/10 OFF-ROAD HUDY UNIVERSAL TIRE BALANCING STATION WHEEL ADAPTER FOR 1/10 TOURING CARS - 12MM HUDY DRIVE PIN REPLACEMENT TOOL (FOR 3MM PINS) EJECTOR PIVOT PIN & ALTERNATING PIVOT 2.
199270 107855 109880 199060 298100 109840 108160 183011 105520 107090 107601 108840 177035 105550 108960 108905 175535 112045 132045 109860 111545 107880 153055 108190 188990 109880 111545 112045 132045 153055 175535 177035 181030 181090 183011 188990 199060 HUDY ALU TRAY FOR ACCESSORIES & PIT LED LIMITED EDITION - ALLEN WRENCH # 1.5MM LIMITED EDITION - ALLEN WRENCH # 2.0MM LIMITED EDITION - ALLEN WRENCH + BALL REPL. TIP # 2.0MM LIMITED EDITION - SLOTTED SCREWDRIVER # 3.
RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.
