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) Allen 2.5mm (#112545 - HUDY EXCLUSIVE Limited Edition) Allen 3.0mm (#113045 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Socket 5.5mm (#175535 - HUDY EXCLUSIVE Limited Edition) Socket 7.
COLOR INDICATIONS NOT INCLUDED 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. SAMPLE OF OPTIONAL PARTS Jan Ratheisky (Factory Driver) #37XXXX TYPE1 OPTION 1 #37XXXX TYPE2 OPTION 2 #37XXXX TYPE3 INCLUDED The part descriptions are color-coded to make it easier for you to identify the source of a part.
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1. FRONT SUSPENSION 2x LOWER ARMS 970050 O 5x1 NOTE ORIENTATION 2x #372115 X1 GRAPHITE LOWER SUSPENSION ARM 2.5mm SHORT COMPOSITE BALL To improve steering in low-traction conditions with standard F1 front tires. 2x DETAIL DETAIL CUTAWAY VIEW Remove excess material 2x 901308 SB M3x8 DETAIL 5mm 2x 1.5 mm LOWER ARMS 902306 SH M3x6 Jan Ratheisky (Factory Driver) I recommend using 27° of steering angle for most conditions.
1. FRONT SUSPENSION LONG STANDARD SHORT WHELLBASE ADJUSTMENT By changing the position of the front suspension on the chassis, you can change the wheelbase by +/-6mm. VERY IMPORTANT When setting the wheelbase all the mounting positions on chassis and top deck must be same. When using long position as initial setting, all mounting positions on chassis and top deck must be in the front.
1. FRONT SUSPENSION 2x ALTERNATIVE 1 STANDARD TRACK-WIDTH (INITIAL SETTING) 902306 SH M3x6 Standard track-width setting is used for standard F1 front tires such HUDY, RIDE, HOT RACE. 903308 SFH M3x8 To make sure that you use the correct setting, measure the track-width with the tires; the trackwidth must be maximum 190mm. INITIAL SETTING THREAD LOCK DETAIL shims NOT INCLUDED shims NOT INCLUDED These shims adjust the roll-center of the front bottom arm as well as the front ride height.
1. FRONT SUSPENSION NOTE ORIENTATION FOR ALL PARTS 902308 SH M3x8 IMPORTANT All 4 bushings MUST have same orienation. = 3° CASTER ALTERNATIVE 1 = 4.5° CASTER STANDARD TRACK-WIDTH (INITIAL SETTING) = 6° CASTER = 7.5° CASTER Never use alu or titanium screws for the eccentric bushings. = 9° CASTER (INITIAL SETTING) ALTERNATIVE 2 WIDE TRACK-WIDTH = 10.5° CASTER THESE ECCENTRIC BUSHINGS ADJUST THE FRONT CASTER.
1. FRONT SUSPENSION YOU CAN INSTALL A LOWER ARM BRACE TO INCREASE STEERING RESPONSE. 902306 SH M3x6 902308 STEP 1: STEP 2: To install the graphite brace remove the 3x6mm screws and graphite arm mount plate. Install the graphite brace using 3x8mm screws. For stiff setting install also the 1mm shim. SH M3x8 303122-K SHIM 3x6x1 Install only for STIFF setting.
1. FRONT SUSPENSION 2x FRONT 31mm Push inside Tighten Apply Graphite Grease 2x VIEW 2.0 m m NOTE ORIENTATION Shiny side Cut out Ball joint should be aligned in the arm with the machined clearance facing down. Check arm orientation so that each arm is in the correct location with the markings facing down when installed. 27mm for STANDARD track-width (INITIAL SETTING) 30mm for WIDE track-width Install the pivot balls with Professional Multi Tool (HUDY #183011).
1. FRONT SUSPENSION 2x OIL 303141 RECOMMENDED HUDY SILICONE OIL LOW traction & bumpy track: 10K cSt (#106510 HUDY) SHIM 3x5x1 372290 HIGH traction & flat track: 30K cSt (#106530 HUDY) 965019 DAMPING Using thicker oil on the king pin axles makes the car less responsive but easier to drive. Thicker oil increases stability but decreases cornering speed. SHIM 3.2x4.8x0.5 C 1.9 FREE MOVEMENT OIL 1mm (2x) 3.5mm 0.5mm (3x) The number of the shims affects the front ride height.
2. REAR SUSPENSION 902306 960030 960030 371320 #373585 C=0.9 GOLD INCLUDED #373587 C=1.5 SILVER OPTION 372650 372650 #373588 C=1.8 GOLD OPTION 378153 378153 960030 #373584 C=0.6 SILVER OPTION 373554 #373586 C=1.
2. REAR SUSPENSION NOTE ORIENTATION 902305 SH M3x5 903306 SFH M3x6 NOTE ORIENTATION #293110 or #293112 HUDY BRUSHLESS RC FAN 30mm Inner positions 902312 SH M3x12 960030 Outer positions N M3 #293111 or #293113 HUDY Brushless RC Fan 40mm 303122-K SHIM 3x6x1 1mm 903306 SFH M3x6 6mm THREAD The amount of shims has a direct effect on the pivot mounting position.
2. REAR SUSPENSION Ensure free, smooth movement. 902256 SH M2.5x6 Tighten the screw enough to remove excess play, while ensuring that the pod plate can turn freely. PIVOT MOUNTING ALTERNATIVE FORWARD: REARWARD: (INITIAL SETTING) Pivot mounted in rearward chassis holes, and 1mm shim used under the pivot ball. The rearward pivot mounting position gives the most steering and most free rear end. Recommended for high-traction conditions such as US black carpet.
2. REAR SUSPENSION 902305 SH M3x5 903305 SFH M3x5 2x 902306 SH M3x6 3x6mm SH 903306 SFH M3x6 3x6mm SFH NOTE ORIENTATION DETAIL POD LINKAGE POSITION (INITIAL SETTING) • OUTER POSITION • CENTER POSITION • INNER POSITION Angled link. (INITIAL SETTING) Angled link. Reduces steering, increases stability. Straight link - easier to drive. Increases in-corner steering. Make sure both side springs are tightened equally, to avoid unwanted tweak. 901308 SB M3x8 SIDE SPRINGS 6mm THREAD #373584 C=0.
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2. REAR SUSPENSION 902306 SH M3x6 NOTE ORIENTATION 903308 SFH M3x8 NOTE ORIENTATION SHORT LONG 960030 N M3 6mm THREAD #301351-O ALU ADJUSTABLE BODY POST STOP (2) 902308 SH M3x8 Very handy, easily externally-adjustable body post made from Swiss 7075 T6 aluminum. Allows for adjustment of body height by 3mm without needing to change the position on the body post.
2. REAR SUSPENSION 2x 2x HUDY OILS #106510 10.000cSt OPTION #106492 11.000cSt OPTION #106512 12.000cSt OPTION #106515 15.000cSt OPTION #106520 20.000cSt OPTION #106530 30.000cSt INCLUDED #106540 40.000cSt OPTION OIL #106550 50.000cSt OPTION Add oil in each slot of the COMPOSITE side tubes. NOTE: Add oil only in the slots, not on the whole tube. After assembling the side tubes, check for smooth operation. It is very important to re-oil the side tubes, at least once per race day.
2. REAR SUSPENSION OPTIONAL SIDE SHOCK 3x6mm #378100 Optional side shock can be used to improve traction in low- and medium-traction conditions. The optional side shock REPLACES the 2 side tubes. 3x8mm 3x6mm #378100 OPTIONAL SIDE SHOCK SIDE SHOCK - OPTIONAL PARTS (NOT INCLUDED) 903306 2mm #378100 Side Shock Absorber - SET #362650 Ball End 4.9mm with Thread 6mm (2) #303122-K Alu Shim 3x6x1mm - Black (10) #303123-K Alu Shim 3x6x2mm - Black (10) #372651 Ball Universal 4.
2. REAR SUSPENSION 303130-K SHIM 3x6x9 9mm 902306 SH M3x6 902318 SH M3x18 NOTE ORIENTATION CHASSIS FLEX ADJUSTMENT SOFT (NO BRACES) Generates more mechanical grip. Recommended for lowto medium-traction carpet as well as asphalt. MEDIUM Braces installed, attached at middle & rear only. This setting is a good compromise between mechanical grip and steering response. Ideal for most conditions. SOFT (NO BRACES) NOTE ORIENTATION 22 STIFF Braces installed, attached at front, middle, and rear.
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3. BALL DIFFERENTIAL REAR RIDE HEIGHT ECCENTRIC BUSHINGS These eccentric bushings adjust the RIDE HEIGHT of the rear pod. Make sure to use the SAME eccentric bushings on BOTH sides. INITIAL SETTING 951438 BB 1/4“x3/8“x1/8“ 2.5 2.0 1.5 1.0 0.5 0 1.0 0.5 1.5 2.0 2.5 ORIENTATION UPPER FLANGED BEARING OIL (HUDY #106230) 1.0 ORIENTATION UPPER OIL 1.0 ORIENTATION UPPER FLANGED BEARING OIL (HUDY #106230) #375001 XRAY SOLID AXLE 1/10 FORMULA - SET 375090 6.4x8.4x0.
3. BALL DIFFERENTIAL 930130 B 3.1 3.2mm 3.0mm 930138 BA 3x8 8.0mm 941438 DIFF GREASE (HUDY #106211) OIL BB 1/4“x3/8“x1/8“ N M3 NOTE ORIENTATION DIFF GREASE DIFF GREASE (HUDY #106211) 960030 7.8mm NOTE ORIENTATION NOTE ORIENTATION 963030 NOTE ORIENTATION ST 3x8 #930230 CERAMIC BALL 3.175mm (12) BEARING OIL (HUDY #106230) #930238 CERAMIC AXIAL THRUSTBEARING F3-8 3x8x3.5 OIL This nut affects the tightness and stiffness of the rear differential.
4. CENTER SHOCK #104002 HUDY AIR VAC – VACUUM PUMP - ON-ROAD XRAY SPRINGS #308263 C = 2.3-2.6 (2) INCLUDED #308264 C = 2.5-2.8 (2) OPTION 308353-K OPTION #308275 C = 2.5 (2) OPTION #308286 C = 2.6 (2) OPTION #308276 C = 2.7 (2) OPTION #308288 C = 2.8 (2) OPTION #308277 C = 2.9 (2) OPTION #308290 C = 3.0 (2) OPTION 1.1mm 1.2mm 1.3mm SHOCK PISTONS 308333 #308274 C = 2.3 (2) 1.1mm 1.2mm 1.
4. CENTER SHOCK 965023 C 2.3 DETAIL SHOCK PISTON ADJUSTMENT 3 HOLES 1.1mm 1.2mm 1.3mm 4 HOLES 1.1mm INITIAL SETTING 1.2mm 1.3mm SHOCK OIL NOTE ORIENTATION DETAIL 972030 O 3x2 SHOCK OIL DETAIL CUTAWAY VIEW 970130 O 13x1.5 SHOCK OIL Be careful not to cross-thread the collar on the shock body.
4. CENTER SHOCK SHOCK FILLING OIL 600cSt SOFTER OIL Recommended for bumpy and low-traction tracks, generates more traction. HUDY SILICONE OILS - 50ml HARDER OIL Recommend for flat and high-traction tracks, improves steering response. ➊ Fully extend the piston rod so the piston is at the bottom of the shock body. ➋ Hold the shock upright and slightly overfill the shock body with shock oil. #104002 HUDY AIR VAC – VACUUM PUMP ➌ Let the oil settle and allow air bubbles to rise to the top.
4. CENTER SHOCK REBOUND ADJUSTMENT RELEASE 2-3 turns ➊ ➋ REBOUND CHECK TIGHTEN FULLY ➌ 25% 50% 75% 0% 100% CHECK AFTER THE SHOCK IS ASSEMBLED YOU HAVE TO SET THE SHOCK REBOUND: REBOUND CHECK: ➊ Release the shock cap by 2-3 turns. It is very important to push the shock shaft into the shock body slowly otherwise air can come into the shock body which would create bubles. ➋ Push the shock shaft fully up. For the first time the extra oil will release through the hole in the alu cap-nut.
4. CENTER SHOCK NOTE ORIENTATION (Shiny finish side) Install the balls with Professional Multi-Tool (HUDY #183011) NOTE ORIENTATION (Shiny finish side) NOTE ORIENTATION DOWNSTOP ADJUSTMENT The length of the shock absorber affects the amount of rear downstop. To adjust, thread the ball-joint on or off the bottom spring cap. 65mm Jan Ratheisky (Factory Driver) Set the ride height for your track and measure it at the link connection of the side pod. Lift the car on the rear part of the center shock.
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5. FINAL ASSEMBLY 2x STEERING LINKS LEFT THREAD x4 RIGHT THREAD RIGHT THREAD LEFT THREAD LEFT THREAD RIGHT THREAD 59mm 59mm These shims adjust the bumpsteer. 303125-K SHIM 3x6x3 When thicker shims are used here, incorner steering increases, but the car becomes more difficult to drive. 8mm THREAD 6mm THREAD DETAIL The steering arm has two positions for servo linkage mounting.
5. FINAL ASSEMBLY 303130-K STEERING PIVOT SHAFT MOUNTING ALTERNATIVE 1 With the post connected to the arm mount plate. (INTITIAL SETTING). SHIM 3x6x9 The steering pivot shaft mount is mounted to the chassis and connected to the arm mount plate with a bushing. 9mm 902314 SH M3x14 903308 SFH M3x8 940508 BB 5x8x2.5 960030 N M3 STEERING PIVOT SHAFT MOUNTING ALTERNATIVE 2 Without the post. 902306 SH M3x6 The steering pivot shaft mount is mounted only to the chassis.
5. FINAL ASSEMBLY 902308 SH M3x8 NOTE ORIENTATION SERVO SAVER F = 25T H = 24T K = 23T Use the adapter that matches the steering servo. DETAIL INITIAL SETTING 6mm THREAD H = Hitec F = Futaba K = KO, JR, Airtronics, Sanwa FROM SERVO For more in-corner steering and better steering response, aluminum servo horns may be used.
5. FINAL ASSEMBLY NOTE ORIENTATION 903306 SFH M3x6 SERVO LINK NOTE ORIENTATION RIGHT THREAD NOTE ORIENTATION 1:1 LEFT THREAD 63mm The length of the link depends on the wheelbase setting. The 63mm length is recommended for standard wheelbase setting.
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5. FINAL ASSEMBLY These positions adjust the HEIGHT of the rear wing.
5. FINAL ASSEMBLY OPTIONAL WING #373512-K COMPOSITE ADJUSTABLE REAR WING - BLACK 906206 #373513-K X1 COMPOSITE ADJUSTABLE REAR WING - BLACK - ETS APPROVED SFP 2.2x6 #373514 X1 COMPOSITE REAR WING - LIGHTWEIGHT & WIDE - WHITE WING POSITION ➊ LOW DOWNFORCE: Generates more steering but makes the car less stable and more difficult to drive. Recommended for large tracks with long sweepers. ➋ MIDDLE: Compromise between high and low downforce (INITIAL SETTING).
5. FINAL ASSEMBLY Receiver (NOT INCLUDED) 903308 SFH M3x8 Speed Controller (NOT INCLUDED) Receiver Wire Double-sided Tape HUDY #107875 (NOT INCLUDED) 903310 SFH M3x10 Battery Pack (NOT INCLUDED) The battery pack has to be angled when installing or removing it from the car.
5. FINAL ASSEMBLY BATTERY MOUNTING POSITIONS The X1 has 4 battery mounting positions. The more forward the battery is, the car will be easier to drive but it will be less responsive. The more rearward the battery is, the car will be more aggressive and have more steering.
5. FINAL ASSEMBLY 903416 SFH M4x16 ➊ Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the mounting position and location for holes and cutouts. Before cutting and making holes on the front wing, put the unpainted wing on the front bumper to confirm the mounting position and location for holes and cutouts. ➋ Before painting, wash the inside of the body with mild detergent, and then rinse and dry thoroughly. ➌ Mask the helmet shield if you wish.
5. FINAL ASSEMBLY FRONT WING 338586 SHIM 5x7x0.5 TRACK-WIDTH ADJUSTMENT SHIMS HIGH DOWNFORCE: More steering LOW DOWNFORCE: Less steering #338584 5x7x0.2mm OPTION #338585 5x7x0.3mm OPTION #338586 5x7x0.5mm INCLUDED 902205 SH M2x5 940510 BB 5x10x4 960040 N M4 2x This shim allows fine adjustment of the front 5x7x0.5mm BEARING OIL (HUDY #106230) #803072 HUDY 1/10 FORMULA RUBBER TIRE - FRONT (2) #803082 HUDY 1/10 FORMULA RUBBER TIRE - REAR (2) 42 track-width.
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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.
