Singer Chamois Coupe
fun project - the Singer Chamois (Hillman Imp derivative)
has a Coventry-Climax derived OHC engine, this one enlarged
from standard 875cc to 1040cc with forged pistons, wet liners,
wills rings and a fully worked cylinder head.. Despite the
small size, the high-revving nature of these engines mean
that they pack a relatively powerful punch.
To improve reliability and
performance, the car was converted to fuel injection with
a Canems ECU. Custom inlet and exhaust manifolds enabled the
fitment of Suzuki GSXR600 throttle bodies, with distributorless
cylinder head and uprated cam, this Imp revs to around 8000
RPM with no problem, so it was an ideal candidate for the
Canems Injection ECU. To add a some extra power, a Rotrex
C15-60 supercharger was also fitted at a later date...
To make room
for the Rotrex supercharger, the water pump has been replaced
by a Davies Craig water pump with digital temperature control.
Intake air temperatures are minimised through a custom intercooler
arrangement. The Canems ECU controls Kenlowe fans on the front
mounted radiator and the intercooler; automatically switching
when temperatures dictate.
intercooler the air is piped to a custom alloy plenum. Boost
pressure is monitored by 2-Bar MAP sensor. The C15-60 Rotrex
is making 8 PSI on this engine. Turbosmart blow off valve
prevents unecessary strain being placed on the plenum in closed-throttle
feeling inspired to build a Rotrex powered Imp, we had a batch
of CAD brackets manufactured (pictured below with tensioner
and idler pulleys). These are now available via the online
shop, or contact us. If you're looking for someone to do the
work, contact Imp specialist Stuart Brownsey at Rodwell Motorsport
- he's already well on with a similar project.