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 R/C models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in fire.
TOOLS REQUIRED Combination Pliers (HUDY #189020) Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition) Allen 2.0mm (#112045 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Allen Wrench 2.5mm (#112545 - HUDY EXCLUSIVE Limited Edition) Pocket Hobby Knife (HUDY #188981) Ball Allen Wrench 2.5mm (#132545 - HUDY EXCLUSIVE Limited Edition) Allen 3.0mm (#113045 - HUDY EXCLUSIVE Limited Edition) Cross Wrench 3mm (HUDY #107581) Arm Reamer 3.
EQUIPMENT INCLUDED 800cSt (#106381) HUDY Premium Silicone Oils * Kit includes smaller but sufficient amount of oil and grease to build the car. 50.000cSt (#106551) HUDY Premium Silicone Oils OIL (HUDY #106210) Premium Graphite Grease 300.000cSt (#106631) HUDY Premium Silicone Oils OIL OIL At the beginning of each section is an exploded view of the parts to be assembled. There is also a list of all the parts and part numbers that are related to the assembly of that section.
1. DIFFERENTIALS XRAY BALL-BEARING #930816 8x16x5 GREASE STEEL OPTION #930817 8x16x5 OIL OPTION STEEL 355065 #940816 8x16x5 GREASE RUBBER OPTION #940817 8x16x5 OIL 940817 RUBBER INCLUDED # 355064 FRONT DIFF.
1. DIFFERENTIALS 2x F=R Graphite Grease (HUDY #106210) Ball-bearing with RUBBER covers. ➌ 940817 BB 8x16x5 ➋ Graphite Grease (HUDY #106210) STEP ➎ DETAIL DETAIL ➍ 964060 Use HUDY Ball-Bearing Grease or Oil for servicing: ➊ S 6x18x0.2 #106220 - Standard #106221 - Extra #106222 - Premium #106230 - Bearing Oil ➎ 971061 O 6x1.55 ➏ 980212 P 2x11.6 VERY IMPORTANT! Use the following silicone oils included in the kit for initial settings: FRONT diff: 300.000cSt / REAR diff: 50.
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2. FRONT & REAR TRANSMISSION 2x & TRANSMISSION Apply a drop of bearing oil after every 2-3 hours of driving to increase the life time. Dry bearing can overheat and damage the bulkhead.
2. FRONT & REAR TRANSMISSION TRANSMISSION ALTERNATIVE UPPER DIFF ORIENTATION (INITIAL SETTING) NOTE ORIENTATION The milled areas must be oriented inwards. 902312 SH M3x12 ALTERNATIVE UPPER DIFF ORIENTATION = UPPER GEAR PLATE ORIENTATION ALTERNATIVE UPPER DIFF ORIENTATION ALTERNATIVE Graphite Grease (HUDY #106210) LOWER DIFF ORIENTATION (INITIAL SETTING) NOTE DIFF ORIENTATION REAR DIFF 50.000cSt 2x L=R 3x10mm 902310 SH M3x10 3x18mm m 2.
2. FRONT & REAR TRANSMISSION TRANSMISSION NOTE ORIENTATION 902308 SH M3x8 TRANSMISSION 902312 SH M3x12 Graphite Grease (HUDY #106210) NOTE DIFF ORIENTATION FRONT DIFF 300.
3. REAR SUSPENSION REAR ANTI-ROLL BARS #353420 ø2.0mm OPTION #353422 ø2.2mm OPTION #353424 ø2.4mm OPTION #353425 ø2.5mm OPTION #353426 ø2.6mm OPTION #353428 ø2.8mm INCLUDED #353430 ø3.0mm OPTION #353432 ø3.
3. REAR SUSPENSION DOWNSTOP SETTING DETAIL 353371 3.4mm SHIM 4x10x2 RR 2mm NOTE ARMS ORIENTATION RR 901412 SB M4x12 1° 0.5° INITIAL SETTING 2mm RF If the suspension arm does not move freely use a HUDY Arm Reamer to resize the holes of the arms. (HUDY #107634) ARM REAMER RF REAR SUSPENSION ARMS #353115 MEDIUM OPTION #353116 HARD INCLUDED #353116-XH X-HARD DETAIL 1° 0.
3. REAR SUSPENSION DETAIL Check for free movement. 903410 SFH M4x10 2x L=R DETAIL 1.5mm Install the pivot balls with Professional Multi Tool (HUDY #183011). 901312 6mm SB M3x12 ANTI-ROLL BARS REAR ANTI-ROLL BARS #353420 ø2.0mm OPTION 940508 BB 5x8x2.5 #353422 ø2.2mm OPTION BEARING OIL (HUDY #106230) #353424 ø2.4mm OPTION Cut away excessive material. OIL #353425 ø2.5mm OPTION #353426 ø2.6mm OPTION #353428 ø2.8mm INCLUDED #353430 ø3.0mm OPTION #353432 ø3.
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4. REAR SUSPENSION 2x L=R Ensure that the rear upright moves freely. If it does not move freely, use sandpaper to thin both wheelbase adjustment shims. 353370 SHIM 3x9x1 Shims for wheelbase adjustment 353370 SHIM 3x9x2 960030 N M3 1mm 1mm 2mm Do not overtighten the self-locking nut. Overtightening may result in suspension binding. DETAIL DETAIL Check for free movement. If the suspension arm does not move freely use a HUDY Arm Reamer to resize the holes of the arms.
4. REAR SUSPENSION 2x L=R Install the nut with Multi Tool (HUDY #181090).
5. FRONT SUSPENSION #333451 ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2) 901303 332071 352495 901303 940508 333450 343482-K 352470 901312 306219 902318 352460 352470 352326 903410 903410 357212 352314 901410 903410 352314 353371 352327 352121 903410 FRONT ANTI-ROLL BARS ALU ANTI-ROLL BAR COLLAR FRONT LOWER SUSP. ARMS 18 306219 332071 333450 343482-K 352121 352314 352326 352327 352460 352470 352495 OPTION #352490 2.0mm OPTION #352492 2.
5. FRONT SUSPENSION 2mm 2mm FF FF 353371 SHIM 4x10x2 FR 901410 SB M4x10 INITIAL SETTING DETAIL FR 2mm 2mm ALTERNATIVE SETTING DOWNSTOP SETTING FR 5mm FR 1° 0.5° INITIAL SETTING FF 2mm FF 1° 0.5° INITIAL SETTING DETAIL If the suspension arms do not move freely, use a HUDY Arm Reamer to resize the holes. FRONT LOWER SUSP.
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5. FRONT SUSPENSION 2x L=R DETAIL DETAIL 306219 SHIM 3x6x2 2mm 901312 1.5mm L=R 6mm Install the pivot balls with Professional Multi Tool (HUDY #183011). SB M3x12 ANTI-ROLL BARS FRONT ANTI-ROLL BARS 940508 BB 5x8x2.5 BEARING OIL (HUDY #106230) Cut away excessive material. OIL #352489 1.8mm OPTION #352490 2.0mm OPTION #352492 2.2mm OPTION #352493 2.3mm OPTION #352494 2.4mm OPTION #352495 2.5mm INCLUDED #352496 2.6mm OPTION #352498 2.
6. FRONT SUSPENSION 353131 960030 352289 902318 352625 960030 STEERING BLOCK 353160 #352245 COMPOSITE INCLUDED #352254 ALU* 353131 OPTION CASTER BLOCK - RIGHT #352273 18° RIGHT ALU* OPTION #352277 16° RIGHT COMP.
6. FRONT SUSPENSION 2x ➌ L=R Marked “R“ ➊ ➋ 902412 SH M4x12 ➌ ➊ 2x L=R #352180 STEEL BALL MOUNT (2) 303123 SHIM 3x6x2 902305 DETAIL SH M3x5 ➋ 2.5 mm Press pivot ball into arm until it snaps into place. 2mm STEP ➊ DETAIL ECCENTRIC BUSHINGS #352170 0° - STEEL OPTION #352174 1° - STEEL OPTION #352175 2° - STEEL OPTION #352179 0° - COMP. INCLUDED 2x DETAIL ➌ ➍ ➎ Install the pivot balls with Professional Multi Tool (HUDY #183011).
7. STEERING 903308 902312 351352 903308 902312 357256 902308 352088 352581 960030 940610 352506 960030 903312 352514 903318 352514 352666 303125 352576 352652 303125 352653 352664 903318 352611 352653 352664 960030 352514 352611 352666 352652 352561 352506 940610 960030 970121 352506 903410 BAG 24 303125 351352 352088 352506 352514 352561 352576 352581 352611 352652 352653 352664 352666 357256 ALU SHIM 3x6x3.0MM (10) GRAPHITE UPPER PLATE 2.
7. STEERING WIDER hole on TOP NOTE SPRING ORIENTATION 970121 NARROWER hole on BOTTOM DETAIL O 12.1x1.6 INITIAL PRELOAD SETTING 3~4mm DETAIL SET-UP BOOK SERVO SAVER NOTE ORIENTATION 902308 3.0mm SH M3x8 HUDY Tool Allen 3.0mm For servicing use Bearing Oil (HUDY #106230).
7. STEERING 3x8mm 3x8mm Check for free movement. DETAIL 3x12mm 357256 SHIM 6x13x1 1mm After the top deck assembly check for free movement of steering system. 1mm 902312 SH M3x12 903308 SFH M3x8 903312 SFH M3x12 960030 N M3 2x 3x12mm L=R Use tools to tighten as shown. LEFT THREAD Special Tool (HUDY #181090) Turnbuckle Wrench 4mm (HUDY #181040) NOTE ORIENTATION Install the pivot balls with Professional Multi Tool (HUDY #183011).
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8. CENTRAL TRANSMISSION 2x F=R DETAIL Temporarily insert brake disk between pads to set correct gap. OVAL HOLE NOTE ORIENTATION 902316 ROUND HOLE NOTE ORIENTATION SH M3x16 Fibre pads together 0.5 mm NOTE ORIENTATION #354121 STEEL BRAKE PAD - LASER CUT (4) #354130 BRAKE PAD FIBER (4) ASSEMBLY VIEW #354132 BRAKE PAD “SLS” (4) It is necessary to glue the brake pad with strong CA glue suitable for steel. NOTE ORIENTATION 901304 SB M3x4 DETAIL 1.0mm 2.
8. CENTRAL TRANSMISSION 903308 SFH M3x8 #354010-G COMPOSITE CENTER DIFFERENTIAL MOUNTING PLATE SET - GRAPHITE NOTE ORIENTATION OF ALL PARTS NOTE ORIENTATION 903412 SFH M4x12 ➎ 901305 SB M3x5 SHIFT-POINT SCREW ➍ SHOE-GAP SETSCREW ➊ ➌ ➋ Setscrews must NOT protrude. 902314 SH M3x14 ➋ 983404 RP 4x4 NOTE ORIENTATION ➊ Top of screw head should be level with hole bottom edge. ➍ ➎ 2-SPEED TRANSMISSION Do not overtighten gap-setting setscrews.
8. CENTRAL TRANSMISSION 47 NOTE ORIENTATION 950814 BB 8x14x4 903306 SFH M3x6 For servicing use BEARING OIL (HUDY #106230). 50 903306 NOTE ORIENTATION SFH M3x6 For servicing use ONE-WAY LUBE (HUDY #106231).
8. CENTRAL TRANSMISSION #354113 SUPER-LIGHTWEIGHT VENTILATED BRAKE DISK - PRECISION-GROUND (2) All screws 98mm 902330 SH M3x30 NOTE ORIENTATION OF ALL PARTS 88mm Before inserting 3x30 long screws, loosen the four flat-head screws in the upper plate by 1/2 turn (CCW). Tighten all screws after assembly. 902312 SH M3x12 903412 SFH M4x12 960040 #353281 GT GRAPHITE BRACES FOR REAR COMPOSITE BRACE - SET for extra stiffness adjustment.
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9. FUEL TANK & ENGINE All screws 908312 SCH M3x12 IMPORTANT! 964073 S 7x10x0.2 7x10x0.2 / 0.3 / 0.5 Use appropriate shims to achieve proper clutchbell endplay 964074 S 7x10x0.3 964075 When installing the engine, first check that the drive shaft does not touch the engine. If it does, remove some material from the engine mount as shown to make some room between engine and shaft. NOTE ORIENTATION S 7x10x0.
9. FUEL TANK & ENGINE 338584 S 5x7x0.2 359050 BB 5x10x4 ALU PINION GEARS #358422 14/18T INCLUDED #358421 13/18T OPTION 10~ #358420 13/17T OPTION 10.2 908314 SCH M3x14 mm TO TIGHTEN THE 17T OR 18T PINION GEAR USE THE OPTIONAL #349901 XRAY PINION TOOL (19~21T / 16~18T). 5x10x4mm 5x10x4mm 18T 14T These bearings must still be regularly serviced and replaced when worn out. SET-UP BOOK CLUTCH SPRINGS CLUTCH SHOE 5x7x0.
9. FUEL TANK & ENGINE 3x16mm 353370 SHIM 3x9x2 DETAIL 2.2x6mm 902316 SH M3x16 2mm 2mm 903310 SFH M3x10 906206 SFP 2.2x6 3x10mm DETAIL 901405 SB M4x5 Bend the exhaust wire as appropriate to fit the muffler.
10. RADIO CASE Servo Screw (NOT INCLUDED) 356200 902306 (NOT INCLUDED) Personal transponder (NOT INCLUDED) 902312 902310 356003 902314 352460 306310 352460 352670 902310 902312 356003 302610 960030 902314 356003 Receiver (NOT INCLUDED) 961032 356003 Steering Servo (NOT INCLUDED) Receiver battery (NOT INCLUDED) 902314 961032 356140 356219 356003 Throttle Servo (NOT INCLUDED) 903412 903412 356219 356120 BAG 10 302610 352460 352670 356003 356050 356140 356200 356219 389135 ADJ.
10. RADIO CASE step 1 Servo screw (NOT INCLUDED) Plug the connectors into the receiver in Step 2. 902314 SH M3x14 961032 NOTE S 3.2 NOTE ORIENTATION Use the shims only if the servo is too high and extends from the case. step 2 3x10mm Use foam to cushion the inside of the radio case so the receiver and battery cannot vibrate or move.
11. SHOCK ABSORBERS PISTONS 10 holes/ø1.1mm 8 holes/ø1.2mm 8 holes/ø1.3mm 6 holes/ø1.2mm 6 holes/ø1.4mm 6 holes/ø1.3mm DETAIL #358196 XRAY GT SPRING SET C=6.
11. SHOCK ABSORBERS 4x DETAIL 358040 S 2.5x6x0.5 Install the piston with Professional Multi Tool (HUDY #183011). 6 holes ø1.2mm pistons 960026 N M2.5 NOTE ORIENTATION #358163 GT SHOCK SHAFT 43MM (2) DO NOT OVERTIGHTEN DETAIL SET-UP BOOK INCORRECT SHOCK DAMPING SHOCK PISTONS TIGHTEN GENTLY The self-locking nut is overtightened, causing distortion of the piston. This will negatively affect the free movement of the piston in the shock body. The self-locking nut is gently tightened.
11. SHOCK ABSORBERS 4x DETAIL 970180 O 18x1.8 2x FRONT SHOCKS 2x REAR SHOCKS Professional Multi Tool (HUDY #183011). DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND) 4x SHOCK 0.5mm 2x 0.5mm DETAIL Follow the steps below to set the shock rebound to the default setting of 0%. SET-UP BOOK Oil 800cSt 2x HALF TIGHTEN 50% SHOCK OIL TIGHTEN FULLY 100% DETAIL 3~5x UP & DOWN 40 ➊ ➋ ➌ ➍ ➎ ➏ ➐ Extend the shock shaft completely. Fill the shock body with the shock oil.
11. SHOCK ABSORBERS 4x SHOCK PRELOAD DETAIL 971034 2x 2x O 3.4x2 #358196 XRAY GT SPRING SET C=6.0, 3 DOTS (2) approx. 6.5mm 2 dots 1 stripe approx. 6.0mm 3 dots 1 stripe SET-UP BOOK SPRING RATE SHOCK PRELOAD RIDE HEIGHT ALTERNATE SHOCK REBOUND SETTING (50% AND 100%) The default shock rebound setting is 0% (as described on page 40). Alternatively, you may set the shock rebound setting to 50% or 100% as described below. Remove the shock springs before performing shock rebound adjustment.
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12. FINAL ASSEMBLY 901303 NOTE ORIENTATION SB M3x3 Servo screw (NOT INCLUDED) Ensure that the servo is in neutral position before attaching the servo horn.
12. FINAL ASSEMBLY 901306 SB M3x6 approx. 52mm NOTE ORIENTATION 902310 SH M3x10 Cut off remaining material 901306 SB M3x6 approx.
12. FINAL ASSEMBLY #351460 GT HORIZONTAL BODY MOUNTING - SET #351233 GT COMPOSITE DIFFUSOR #351235 ADAPTER 4x10mm 3x30mm 4x WHEEL NUTS #355261 OPEN INCLUDED #293560 COVERED OPTION #355265 COVERED OPTION Wheel & Tire (NOT INCLUDED) Wheel & Tire (NOT INCLUDED) To tighten the screw you can also use the #107570 HUDY 17mm Wheel Nut Tool.
12. FINAL ASSEMBLY Cut the silicone tube depending on engine and muffler. Use the plastic clips to hold the tubes together. SILICONE TUBE MARKED AS BLUE = FROM FUEL TANK TO CARBURETOR SILICONE TUBE MARKED AS RED = FROM MUFFLER TO FUEL TANK (TOP) Keep fuel line away from clutchbell and flywheel. #359731 GTX BODY (NOT INCLUDED) Use Body Reamer (HUDY #107602) for all holes.
MAINTENANCE ENGINE OPERATION PREPARING TO OPERATE THE ENGINE • Never modify the engine or muffler. • Confirm the position of needle and idling before running. Be sure to run a new engine smoothly. • Make sure the air filter is clean and oiled. • Never run your engine without an air filter. Your engine can be seriously damaged if dirt and debris get inside the engine. • For proper engine break-in, please refer to the manual that came with the engine.
THROTTLE LINKAGE ADJUSTMENT NEUTRAL (IDLE) ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS 0.5mm ENGINE IDLING ~1mm IDLING ADJUSTMENT SCREW. Use to adjust the idle setting of the carburetor. Do not allow carburetor to close to less than 1mm. • Turn on the transmitter and receiver and set the engine control servo trim to the neutral position. • Adjust the idle adjustment screw on the carburetor to open approx. 1mm.
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RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.