Installation in Losi 5ive-T
Installation in the Losi is pretty much the same as a standard engine with the exception of the
expansion chamber. This is supplied with a bracket to attach to the pull start housing 2x bolts. It is
connected to the engine using an "O" ring sealed joint and a retaining spring. The 'O' rings are supplied.
Just push the pipe over the exhaust stub, attach the springs, and bolt to the bracket wiith rubber mount.
Throttle/Carb/Intake
A Walbro WJ71 big bore carb is fitted as standard on the RCMAX 55/65. This carb has had the stock
throttle shaft drilled and a quick release fitting can be fitted here so that you can simply hook it up to your cars
servo arm and adjust to suit.
An intake system is provided with your engine package which brings the air filter in line with the vents
in the body so that clean fresh air is being used for optimal performance.
NOTE: See further sheet for more information on the carb and settings
Gearing
A higher ratio is required for the main drive gears. A 28 tooth pinion and 50 tooth spur gear should provide
a good starting point. Suitable gears for the Losi are made by
Blackbone Racing
and available from us
.
This ratio should give the car rapid acceleration and a reasonable top speed so it can be used in a
reasonably sized space. Lots of other gear combinations are available, please just ask we carry stock of
all the popular sizes.
Drivetrain
Because of the considerable extra performance of the engine it will be necessary to upgrade the drivetrain
with heavy duty parts. We would recommend using heavy duty drive shafts, heavy duty billet diff housings as
per the
RCMAX DIFFS
with oversize bearings and Billet diff casings such as the
RCMAX 7075 Diff Cup.
If your looking to prep your car as best as possible, we have created a Billet Losi Chassis (1.0/2.0) that
prevents excess flex which can kill your centre driveline (see pics below)
We also advise to use 1M weight oil or a locker in the centre, 500k in the rear and 300k oil in the
front diff. In this way you will always have at least two wheels driving and a good spread of the power.
Note: See supplementary sheet for installation in the HPI BAJA
