Lotus 2004 Eleven Service Notes page 119

Lotus Service Notes
Recommended settings are as follows:
Road use: Front 3
Track use: Front 8
Anti-Roll Bar
An anti-roll bar with 5-hole adjustment is used, with cars built before August '06 using an uprated bar and
early type re-positioned hard mountings, whereas later cars use a yellow painted standard rate bar with revised
hard mountings in a position common with standard cars. Refer to sub-section CI.3.
Use the foremost hole P1 (shortest lever arm) for maximum stiffness and rearmost P5 for minimum. In-
creasing front roll stiffness will tend to promote understeer. Recommended position for road and track use is
central P3.
Chassis Rear Brace Kit
The chassis brace kit is fully described in sub-section DH.5 but is reduced in complexity for this application
by the use of a simple tubular brace to link the rear ends of the toe-link inboard fixing bolts. In this configura-
tion, a flat washer A120W4199F (7/16 x 7/8) must be used between the head of the toe link pivot bolt and the
crossbrace tube.
Forged Wheels
The lightweight forged wheels offer a saving of 14.4 kg/car on Elise and 20.4 kg/car for Exige, and feature
a wider front rim width of 6.5J. Insets are unchanged.
Yokohama A048 Tyres
The Yokohama A048 tyres have been developed jointly by Lotus and Yokohama to suit the requirements
of the performance driver, with special emphasis on track use. Compared with the standard tyre, the front tyre
width is increased and the profile reduced from 175/55 to 195/50. The tyre tread design is directional, such that
each wheel/tyre assembly is dedicated to a single vehicle corner. Tyre pressures are unchanged.
The Lotus specific construction is identified by the letters 'LTS' moulded on the tyre sidewall. Ensure
that any replacement tyre is so marked. Note that an edging strip is applied around both front wheelarches to
provide the necessary tyre coverage.
Geometry
Front
Mid-laden ride height (reference height for geometry check)
- front
- rear
Castor - optimum
- tolerance range
Camber - optimum
- tolerance range
Rear 2
Rear 7
Rear Shown
120 mm below front end of chassis siderail
120 mm below rear end of chassis siderail
+ 3.8°
+ 3.5° to + 4.1°; max. side/side 0.35°
- 0.2°
+ 0.1° to - 0.3°; max. side/side 0.2°
Section DH
Knurled
ring
Alignment
dot
d50
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