Lotus Elise S1 Service Notes page 484

Lotus Service Notes
Section OG
XA.1 - INTRODUCTION
Lotus Cars is marketing a range of performance products for the Elise, aimed primarily at competition
and/or track use of the vehicle. Some of the kits may be used alone, but others may be recommended for use
only in conjunction with other complimentary kits. Using the car on the public highway with competiton parts
fitted may contravene emission and/or noise regulations and invalidate insurance cover. In addition, the
specification will be compromised in terms of comfort and refinement, and demand increased maintenance
and service. In most cases, the standard vehicle warranty will not apply after the fitment of 'off road' or
'competition' oriented parts.
XA.2 - 190 VHPD ENGINE
The 190 VHPD (Very High Performance Derivative) engine is designed for motorsport track use only, and
may not comply with emission regulations. The unit is based on the same 1.8 litre Rover 'K series' block as the
standard engine, but with a revised cylinder head featuring new inlet and exhaust camshafts, solid tappets, and
new throttle bodies providing individual throttle butterflies for each cylinder and a competition type oiled foam
air cleaner. The engine bottom end includes forged pistons, strengthened connecting rods and crankshaft, and
a lightened flywheel. A reprogrammed ECM is an integral part of the package. The preferred fuel is 98 RON
unleaded ('Super Unleaded'), although 95 RON is useable. Oil recommendation is Mobil 1 5W/50 fully synthetic
after running in on a good quality mineral oil.
Output: Max. power; 190 ps @ 7,500 rpm
Max. torque; 189 Nm @ 5,600 rpm
The engine is supplied only as a complete assembly for competition use, and does not carry the normal
vehicle or parts warranty. Included in the engine package are:
Engine harness and new ECM with matched security 5AS module.
Exhaust manifold (unchanged).
Inlet manifold, throttle bodies and competition air filter. Air filter oil aerosol.
Fuel rail and injectors.
Alternator and auxiliary belt (unchanged).
Lightened flywheel (no clutch).
Engine mounted water rails.
Oil filter.
Ignition coil, spark plugs and H.T. harness.
Engine Fitting Kjt
The additional parts required in order to fit the VHPD engine, are contained in fitting kit A111E0034J, and
comprise:
Carbon fibre cold air box and trunking. Requires removal of boot bulkhead to accommodate the air box,
and cutting down of the standard air filter mounting plate for the trunking. The charcoal canister also
requires removal, with a corresponding modification to the filler neck breather hose routing.
New throttle cable.
New fuel feed and return pipes with clips.
Crankcase breather pipe kit.
Throttle cable 'U' bracket.
Cobra immobiliser bridging plug.
Unless already so equipped, the later type closer finned (20 f.p.i. instead of 16 f.p.i.) engine cooling
radiator must also be ordered and fitted - A111K0021F.
Additional parts strongly recommended:
In order fully to exploit the performance of the VHPD engine, it is strongly recommended to fit the
following components:
Oil cooler kit (A111K0037S).
Competition silencer kit (A111S0037S) and catalytic converter substitution pipe (A111S0048S).
Page 2
2000 / 03