Xray NT1 Set-Up Book

2
CONTENTS
Setting Up the XRAY NT1 3
Set-up Order 4
Terminology 4
Weight Transfer 5
Weight Balance 5
Center-of-gravity 5
Downstops 5
Effects of Downstop Adjustment 6
Measuring Downstops 6
Adjusting Downstops 7
Shock Absorbers 8
Shock Spring Rate 8
Effects of Spring Rate Selection 8
Shock Spring Preload 9
Shock Position 9
Effects of Shock Position Adjustment 9
Adjusting Shock Position 9
Shock Damping 10
Effects of Shock Damping Adjustment 10
Adjusting Shock Damping 11
Track-width 11
Effects of Track-width Adjustment 12
Measuring Track-width 12
Adjusting Track-width 12
Ride Height 13
Effects of Ride Height Adjustment 13
Ride Height and Tires 13
Ride Height and Suspension Settings 13
Measuring Ride Height 13
Adjusting Ride Height 14
Camber 14
Measuring Camber 15
Adjusting Camber 15
Caster 16
Effects of Caster Adjustment 16
Adjusting Caster 17
Toe 17
Effects of Toe Adjustment 17
Measuring Toe 17
Adjusting Toe 18
Anti-roll Bars 19
Effects of Anti-roll Bar Adjustment 19
Adjusting Anti-roll Bars 19
Tweak 20
Combating Tweak 20
Measuring & Correcting Tweak 21
XCA Clutch 23
Building and Maintaining the XCA Clutch 23
Flywheel Shimming 24
Adjusting Flywheel Distance 24
Clutch Spring Preload 24
Effects of Clutch Spring Preload 24
Adjusting Clutch Spring Preload 24
Clutch Gap 25
Effects of Clutch Gap Adjustment 25
Adjusting Clutch Gap 25
Clutchbell Endplay 25
Effects of Excessive Clutchbell Endplay 25
Adjusting Clutchbell Endplay 26
Clutch Shoes 26
2-speed Transmission 26
Shift Point 26
Adjusting Shift Point 27
Transmission Shoe Gap 27
Adjusting Transmission Shoe Gap 27
Multi-Flex Technology™ 28
Effects of MFT™ Adjustment 28
Adjusting Chassis Stiffness
with MFT™ 1-piece Engine Mount 28
Roll Center 29
Roll Center Basics 29
Roll Center in Action 29
Effects of Roll Center Adjustment 29
Adjusting Roll Center 30
Camber Rise 32
Adjusting Camber Rise 32
Steering Ackermann 33
Adjusting Ackermann 33
Front and Rear Axles 34
Gear Differentials 34
Effects of Gear Differential Adjustment 34
Adjusting the Gear Differentials 34
Solid Front Axle 35
XRAY Multi-diff™ 35
Gearing 36
Drivetrain Ratio (DTR) — Internal Ratio 36
Primary Drive Ratio (PDR) 36
Final Drive Ratio (FDR) 37
Overdrive Ratio (ODR) 37
Rollout 37
Overdrive Ratio, Rollout, and Tire Size 37
Shock Building Tips 38
Periodic Shock Maintenance 38
Fill and Bleeding Process 38
Foam Tire Tips 39
Bearing Maintenance 39
Martin Hudy, Junior Designer at XRAY R&D, guides you through the set-up theory of the XRAY NT1 and
discloses all the tips & tricks to make your NT1 a winning car.
All texts and images contained within this set-up book are copyright by XRAY. All rights reserved. ©2007 XRAY

Xray NT1 Specifications

General

Brand	Xray
Model	NT1
Category	Motorized Toy Car
Language	English