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 Wrench 2.5mm (#112545 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Ball Allen Wrench 2.5mm (#132545 - HUDY EXCLUSIVE Limited Edition) Allen 3.0mm (#113045 - HUDY EXCLUSIVE Limited Edition) Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition) Pocket Hobby Knife (HUDY #188981) Arm Reamer 4.
EQUIPMENT INCLUDED 550cSt (#106356) HUDY Premium Silicone Oils OIL 600cSt (#106361) HUDY Premium Silicone Oils OIL * Kit includes smaller but sufficient amount of oil and grease to build the car. 3.000cSt (#106431) HUDY Premium Silicone Oils OIL 7.000cSt (#106471) HUDY Premium Silicone Oils (HUDY #106210) Premium Graphite Grease OIL At the beginning of each section is an exploded view of the parts to be assembled.
1. FRONT & REAR DIFFERENTIALS XRAY BALL-BEARINGS 355065 #930816 8x16x5 GREASE STEEL OPTION #930817 8x16x5 OIL OPTION STEEL 355022 940816 #940816 8x16x5 GREASE RUBBER INCLUDED #940817 8x16x5 OIL RUBBER OPTION 971061 964030 355091 355031 980261 355084 971061 903312 # 355064 FRONT DIFF.
1. FRONT & REAR DIFFERENTIALS 2x F=R IMPORTANT! Use the same diff outdrives on both ends of a diff. ➌ 940816 ➋ BB 8x16x5 Graphite Grease (HUDY #106210) Graphite Grease (HUDY #106210) 964060 DETAIL Use HUDY Ball-Bearing Grease #106220 - STANDARD #106221 - BLUE #106222 - RED ➍ S 6x18x0.2 STEP ➎ DETAIL ➊ ➎ 971061 O 6x1.55 ➏ 980261 P 2.5x11.5 VERY IMPORTANT! Use the following silicone oils included in the kit for initial settings: FRONT diff: 7.000cSt / REAR diff: 3.
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1. CENTER DIFFERENTIAL ➌ ➋ Graphite Grease (HUDY #106210) 940816 BB 8x16x5 ➊ STEP ➎ DETAIL Use HUDY Ball-Bearing Grease #106220 - STANDARD #106221 - BLUE #106222 - RED ➍ 964060 Graphite Grease (HUDY #106210) S 6x18x0.2 ➏ 971061 O 6x1.55 DETAIL ➎ 980261 P 2.5x11.5 VERY IMPORTANT! Use the following silicone oil included in the kit for initial setting: Center diff: 7.000cSt CORRECT 903312 INCORRECT IMPORTANT! OIL SFH M3x12 Do not overfill the differential.
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2. FRONT TRANSMISSION Push joint against gear to remove gap. Tighten setscrew onto gear flat spot. 901504 SB M5x4 DETAIL ➎ ➌ ➎ STEP ➎ DETAIL Follow the TECH TIP on page 5 for drive shaft pin servicing. ➊ 930816 BB 8x16x5 ➋ Use HUDY Ball-Bearing Grease #106220 - STANDARD #106221 - BLUE #106222 - RED XRAY BALL-BEARINGS #930816 8x16x5 GREASE STEEL INCLUDED #930817 8x16x5 OIL OPTION STEEL ➍ During assembly, there is no need to check gear mesh or diff play.
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2. REAR TRANSMISSION Push joint against gear to remove gap. Tighten setscrew onto gear flat spot. ➎ DETAIL 901504 ➌ SB M5x4 ➎ STEP ➎ DETAIL Follow the TECH TIP on page 5 for drive shaft pin servicing. 930816 BB 8x16x5 XRAY BALL-BEARINGS #930816 8x16x5 GREASE STEEL INCLUDED #930817 8x16x5 OIL STEEL OPTION ➊ Use HUDY Ball-Bearing Grease #106220 - STANDARD #106221 - BLUE #106222 - RED ➋ ➍ During assembly, there is no need to check gear mesh or diff play.
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3. REAR SUSPENSION MEDIUM HARD SUSPENSION ARMS RR 353371 0.5º 1º SHIM 4x10x2 1º RF 1º Do not use INNER positions. 901408 SUSPENSION ARMS RR 0.5º 1º 0.5º 1º 0.5º RF RF 0.5º 1º X-HARD / GRAPHITE SUSPENSION ARMS RR 0.5º Do not use OUTER positions. All positions are available. SB M4x8 DETAIL 3.5x45mm ➍ Check for free movement. RR ➌ 909372 SS 3.5x22 ➊ RR 1º 0.5º INITIAL SETTING NOTE ORIENTATION ➎ 4x8mm NOTE ORIENTATION ➋ 2mm ➌ ➊ SS 3.5x45 3.5x22mm 2.
3. REAR SUSPENSION 2x Install the pivot balls with Professional Multi-Tool (HUDY #183011). L=R DETAIL 1.5mm 6mm 901312 SB M3x12 901303 SB M3x3 L=R STEP ➍ DETAIL 0mm 901305 SB M3x5 DETAIL 3x3mm 902318 ➌ SH M3x18 903308 SFH M3x8 3x18mm ➋ ➊ SET-UP BOOK 3x5mm 3x8mm ANTI-ROLL BAR INITIAL SETTING REAR ANTI-ROLL BARS DETAIL DETAIL DETAIL Loosen the 3x5 setscrew if the anti-roll bar does not turn freely. Step ➊ Step ➊ check for free movement. 16 #353418 ø1.8mm OPTION #353420 ø2.
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4. REAR SUSPENSION 2x 93mm - SHORT CVD DRIVE SHAFT L=R To tighten the setscrew you can also use the HUDY 17mm Wheel Nut Tool #107570. ➌ 901504 SB M5x4 NOTE ORIENTATION ➋ 2.5x13mm Follow the TECH TIP on page 5 for drive shaft pin servicing. 13x19x4mm ➐ 940816 3x17mm Graphite Grease (HUDY #106210) ➍ BB 8x16x5 m 2.
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5. FRONT SUSPENSION FRONT LOWER SUSP. ARMS #352120 SOFT OPTION #352120-M MEDIUM INCLUDED #352120-G GRAPHITE OPTION 909372 352324 #902407 HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4) 352314 901408 357212 353371 352314 902318 352323 909395 352120-M 901303 352470 352492 352006 333450 901305 901312 FRONT ANTI-ROLL BARS 352460 903308 352470 #333451 ALU ANTI-ROLL BAR PIVOT BALL 5.
5. FRONT SUSPENSION 353371 SHIM 4x10x2 ➍ 3.5x22mm FR 901408 SB M4x8 ➌ ➊ ➋ FR 1º INITIAL SETTING 909372 SS 3.5x22 4x8mm 2mm 0.5º ➎ INITIAL SETTING FF ➌ 3.5x45mm ➊ ➍ FF 1º DOWNSTOP SETTING DETAIL All possible mounting alternatives of eccentric bushings. DETAIL If the suspension arms do not move freely, use a HUDY Arm Reamer to resize the holes. 909395 #902407 SS 3.5x45 2.0mm Allen 0.0mm 0.5º INITIAL SETTING (HUDY #107644) Downstop screw for fine tuning.
5. FRONT SUSPENSION 2x L=R 1.5mm 6mm 901312 SB M3x12 Install the pivot balls with Professional Multi Tool (HUDY #183011). L=R 901303 STEP ➍ DETAIL 1.5~2.5mm SB M3x3 901305 SB M3x5 DETAIL 3x3mm ➍ 902318 SH M3x18 ➋ 3x18mm 903308 ➌ SFH M3x8 ➊ 3x5mm 3x8mm DETAIL Step ➊ Loosen the 3x5 setscrew if the anti-roll bar does not turn freely. FRONT ANTI-ROLL BARS SET-UP BOOK ANTI-ROLL BAR 22 #352487 1.6mm OPTION #352489 1.8mm OPTION #352490 2.0mm OPTION #352492 2.2mm INCLUDED #352493 2.
6. FRONT SUSPENSION #357253 BRASS ADJUSTING NUT M15x1 #350907 C-HUB FRONT SUSPENSION CONVERSION SET 352133-M 903312 980263 357256 352370 357251 ALU BLACK SOFT 355237 355211 357252 OPTION #352133-M MEDIUM 941318 357254-G FRONT UPPER SUSP.
6. FRONT SUSPENSION 2x L=R ALU pivot ball BLACK color DETAIL STEEL pivot ball SILVER color #357253 Brass Adjusting Nut M15x1 Tighten hex nuts using HUDY tool #107581. 2x PIVOT BALLS MUST MOVE FREELY During initial assembly, tighten each hex nut until the pivot ball starts to bind, then loosen slightly. Verify that the pivot balls move freely. L=R 357256 SHIM 6x13x1 1mm m 2.5m HUDY Tool Allen 2.5mm FRONT UPPER SUSP.
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6. FRONT & REAR ASSEMBLY Push the top of the holder with fingers together to insert the brace with body post. 902335 SH M3x35 960030 N M3 #353280 GRAPHITE BRACE SET for extra stiffness adjustment. M3 902340 SH M3x40 M4 903412 SFH M4x12 960030 960040 N M3 N M4 DETAIL 903412 SFH M4x12 During assembly, there is no need to check gear mesh or diff play.
7. STEERING #352658 BALL STUD 6.
7. STEERING WIDER hole on TOP 970121 NOTE SPRING ORIENTATION DETAIL O 12.1x1.6 NARROWER hole on BOTTOM INITIAL PRELOAD SETTING 3~4mm DETAIL SET-UP BOOK SERVO SAVER 3.0mm HUDY Tool Allen 3.
7. STEERING 308019 SHIM 3x6x3 902310 902316 SH M3x10 SH M3x16 3x10mm 1º 903308 SFH M3x8 0.5º INITIAL SETTING NOTE ORIENTATION SET-UP BOOK DETAIL ROLL CENTER 3x12mm 3x12mm 3x12mm 902312 3x10mm Check for free movement. SH M3x12 USE ONLY LEFT HOLE M3 903310 DETAIL After the top deck assembly check for free movement of steering system.
7. STEERING 908312 SCH M3x12 NOTE ORIENTATION 1.0mm 1.0mm 2.0mm INITIAL SETTING 1º 0.5º All possible mounting alternatives of eccentric bushings. UPPER CLIP Behind arm CASTE R CASTER UPPER CLIP LOWER SHIM (Behind arm) (Behind arm) 2mm SET-UP BOOK ROLL CENTER CASTER 2x 4mm 21º 3mm 22.5º 2mm 24º 1mm 25.
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8. CENTER DIFF & BRAKE 902305 SH M3x5 961032 S 3.
8. CENTER DIFF & BRAKE 903412 SFH M4x12 All screws DETAIL 908312 SCH M3x12 M3 M4 XRAY PINION GEAR M4 M3 908412 SCH M4x12 #355712 12T OPTION #355713 13T OPTION #355714 14T OPTION #355715 15T OPTION #355716 16T OPTION #355717 17T OPTION Use M3 or M4 screws which fit your motor. (M4 INITIAL SETTING) Pinion 355712~17 (NOT INCLUDED) 908314 SCH M3x14 961032 S 3.2 Adjust gear mesh so there is minimal play between the gears.
10. RADIO CASE Servo Screw (NOT INCLUDED) LiPo Short Pack (NOT INCLUDED) LiPo Short Pack (NOT INCLUDED) 902314 356200 352460 902325 352460 352670 356153 302630 352670 902325 960040 326177 902308 356153 960040 960030 902312 326177 326177 960040 902312 356153 961032 903410 356153 902308 Steering Servo (NOT INCLUDED) 903410 903410 356120 Speed Controller (NOT INCLUDED) 903410 902308 Receiver (NOT INCLUDED) 356109 356154 903412 356194 903310 903310 BAG 10.1 BAG 10.
10. RADIO CASE Servo Screw (NOT INCLUDED) 902312 SH M3x12 961032 S 3.
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10. RADIO CASE ALTERNATIVE 1 Standard Battery pack (NOT INCLUDED) CONFIGURATION FOR STANDARD BATTERY PACK (INITIAL SETTING) 902325 SH M3x25 STANDARD BALANCE 903410 SFH M4x10 960040 N M4 To ensure correct functioning of the battery holder, do not overtighten the screw; the holder must be able to move. ORIENTATION FOR LOW BATTERY PACK HEIGHT ADJUSTMENT 1 turn = 0.
11. SHOCK ABSORBERS 358041 358055 PISTONS 358043 10 holes/ø1.1mm 8 holes/ø1.2mm 8 holes/ø1.3mm 358043 960026 358040 6 holes/ø1.2mm 358264 6 holes/ø1.4mm 358087-S 6 holes/ø1.3mm 358225 358032 358033 358165 DETAIL 970100 358124 358018 970180 971034 #358126 ALU FRONT SHOCK BODY -2mm (2) 358074 358142 358335 358150 #358164 FRONT SHOCK SHAFT 59mm (2) #358265 REAR SHOCK SHAFT 71.
11. SHOCK ABSORBERS DETAIL 358040 S 2.5x6x0.5 8 holes ø1.2mm pistons (INITIAL SETTING) 960026 N M2.5 8 holes ø1.3mm pistons (INITIAL SETTING) SHORT rod Install the piston with Professional Multi Tool (HUDY #183011). LONG rod NOTE ORIENTATION BAG BAG 11.1 FRONT SHOCK REAR SHOCK #358027 PISTON 5-HOLE (1.5mm) & 2-HOLE (1.0mm) (4) #358028 PISTON 6-HOLE (1.3mm) & 2-HOLE (1.1mm) (4) #308029 PISTON 6-HOLE (1.4mm) & 2-HOLE (1.1mm) (4) #358030 PISTON 8-HOLE (1.2mm) & 2-HOLE (1.
11. SHOCK ABSORBERS 2x FRONT SHOCKS 2x REAR SHOCKS DETAIL 970180 O 18x1.8 2x FRONT SHOCKS DETAIL 2x REAR SHOCKS Professional Multi Tool (HUDY #183011) 1 mm DETAIL DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND) FRONT (SHORT) 2x Oil 550cSt Follow the steps below to set the shock rebound to the default setting of 0%. SET-UP BOOK 2x REAR (LONG) Oil 600cSt 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.
11. SHOCK ABSORBERS FRONT shock PRELOAD DETAIL 2x REAR SHOCKS 2x FRONT SHOCKS approx. 2mm SHORT front shock LONG rear shock REAR shock PRELOAD SHORT spring LONG spring IMPORTANT! approx. 2mm SET-UP BOOK SPRING RATE SHOCK PRELOAD RIDE HEIGHT IMPORTANT! Both front shocks must be the same overall length. IMPORTANT! Both rear shocks must be the same overall length. FRONT & REAR SHOCKS ALTERNATE SHOCK REBOUND SETTING (50% AND 100%) The default shock rebound setting is 0% (as described on page 40).
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12. FINAL ASSEMBLY SHORTER FRONT SHOCKS (SHORT) LONGER 2x NOTE ORIENTATION L=R 902318 SH M3x18 902319 SH M3x18 LEFT thread 960030 N M3 Use STANDARD M3x18 screw 3x18mm On the front right arm use the SILVER M3x18 screw - this screw has LEFT THREAD.
12. FINAL ASSEMBLY ➊ Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the ➎ ➏ ➐ ➑ 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 all windows. ➍ Apply paint masks as appropriate. Paint the body using paints formulated for polycarbonate bodies. When the paint is dry, remove the masking.
FRONT C-HUB SUSPENSION #350907 XB8/XB8E FRONT C-HUB SUSPENSION - SET 352160 901303 902325 352580 352150 303128-K 352287 902318 352625 960030 352150 353170 960030 901408 352652 352180 903308 352277 352378 352121-H 902412 357230 352293 352245 902305 352170 902316 ECCENTRIC BUSHINGS #352170 0° - STEEL INCLUDED #352174 1° - STEEL OPTION #352175 2° - STEEL OPTION 352293 902412 303128-K 352121-H 352150 352160 352170 352180 352245 352277 352287 ALU SHIM 3x6x6MM (10) COMPOSITE FRONT LOWER SUSPENSION
FRONT C-HUB SUSPENSION 2x L=R NOTE ORIENTATION Graphite Grease (HUDY #106210) 13x19x4 941318 940816 BB 13x19x4 BB 8x16x5 To tighten the setscrew you can also use the HUDY 17mm Wheel Nut Tool #107570. 8x16x5 Use HUDY Ball-Bearing Grease for servicing: 980317 903308 901504 P 3x17 SFH M3x8 SB M5x4 #106220 - Standard #106221 - Extra #106222 - Premium 2x L=R m 2.5m ➌ Marked “R“ 902412 SH M4x12 SHORT ➊ LONG ➊ ➋ ➌ 2x Install the pivot balls with Professional Multi-Tool (HUDY #183011).
FRONT C-HUB SUSPENSION DETAIL 901303 L=R SB M3x3 17.5mm 909395 SS 3.5x45 908312 SCH M3x12 INITIAL SETTING 1º 0.5º DETAIL STEP ➍ DETAIL 1.5~2.
FRONT C-HUB SUSPENSION Install the pivot balls with Professional Multi-Tool (HUDY #183011). 24mm 24mm 303128-K SHIM 3x6x6 902318 SH M3x18 6mm 960030 N M3 INITIAL SETTING DETAIL 902318 SH M3x18 902319 SH M3x18 LEFT thread Use STANDARD M3x18 screw 960030 N M3 3x18mm On the front right arm use the SILVER M3x18 screw - this screw has LEFT THREAD.
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 rubber bladders and 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.
All the tools & accessories shown are suitable for XB8 and/or XB8E 199310 108202 199911 107855 108701 108212 109880 104005 108870 107030 107704 108190 293111 108805 107701 181110 106245 107717 293560 107865 188981 181030 181040 293540 181034 107744 181050 107581 107742 112071 104140 #104005 #104140 #104500 #105500 #105510 #106000 #106200 #106245 #107030 #107090 #107570 #107581 #107602 HUDY Air Vac - Vacuum Pump - 1/8 Off-Road HUDY Engine Break-In Bench HUDY Star-Box 1/8 Off-Road HUDY Univers
199184 104500 108170 199060 109802 105510 106200 105500 199270 109841 107644 106000 154060 107762 107612 107780 113045 107783 112545 108860 132545 107602 109860 181090 112045 107090 132045 183011 107570 111545 164045 188990 175535 170050 182015 #112045 #112071 #112545 #112571 #113045 #132045 #132545 #154060 #164045 #164071 #170050 #175535 #181030 Limited Edition - Allen Wrench # 2.0mm Power Tool Tip Allen 2.0 x 90 mm Limited Edition - Allen Wrench # 2.5mm Power Tool Tip Allen 2.
RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.
