From 1984 on, the
Corsa A was used in the ONS OPEL Junior Rally Cup (ONS =
national sport committee), in which the Kadett D was already raced.
Philosophy of the
new generation competition:
The races were done
with a low-priced close-to-production Kadett 1.3S or Corsa 1.3S with
Irmscher injection. According to the principle "Equal opportunities
for everybody" , 30 participants with identical cars were on the
departure, power increases were not allowed. All changes served only
as protection of the driver. Race decisions were not done by power,
but by the driver's skills.
The Cup consisted of
10 Rallies, the winner received 1250 euro per
run and at the end of the season 15000 euro in total were given to
the first 10 of the overall ranking.
Before the beginning
of the season Opel offered
to all participants a free basic instruction course. This was also
instructed among by Willi-Peter Pitz (German
Rally Winner in 1973), the Cup supervisor and responsible person of
the teams. Willi-Peter got his experience from many international
rallies as a co-pilot with Walter Roehrl, Rauno Aaltonen,
Smolej and Warmbold.
1985: Renaming of the ONS OPEL
Junior Rally Cup in OPEL Junior Cup
In
1985 the regulations of the Cup were modified: As it had been seen
at he Rallies that there were both talents for gravel runways as well as
for race tracks, races were done on circuits and on rally tracks.
The races were done as before with the Corsa 1.3S (new or used) and also the
Kadett D 1.3S was
still certified in the year 1985.
Six Rallies and six round distance
runs, which were distributed over the Federal Republic, were driven
in the change. One drove only on weekend.
The Cup races were always
done
in connection to championship runs.
From 1986 on only the Corsa 1.3S
was used in the Cup. The
Corsa was classified in the category C of low-pollution
vehicles and was free of taxes therefore. All cars used also the
same tires.
The Opel-Junior-Cup was raced until 1989.
Technical
specifications of the Corsa GroupA engine
Engine: 4 cylinder OHC
in-line-engine, 1297ccm, stroke/bore 73,4/75mm, 74kW/100PS at
6000 RPM, torque 127 Nm, sport valve
springs, sport camshaft, electronic fuel injection, forged pistons,
compression ratio 10,4:1, contactless ignition, special
exhaust manifold, special sport exhaust
Transmission:
Heavy-duty clutch, five-gear sport transmission, final ratio
4.53, differential lock with 25%/40% locking action
Body:
Two-door body with roll cage, underbody protection, body
reinforcements
Suspension: Independent suspension with shock
struts and stabilizer bar in the front, torsion beam trailing arm axle
with stabilizer bar in the back, Bilstein gas shock absorbers, sport springs,
heavy-duty engine and chassis rubber mountings, direct steering element, tires 165/70
13 to 175/50 13 on alloy wheels 5Jx13 or 5,5Jx13
Brakes: Ventilated
disc brakes in the front, disc brakes in the back, dual circuit brake system with
adjustable brake balancer
Weight:
760kg, Power to weight ratio of 10.5 kg/KW = 7,7kg/PS
Performances: Maximum speed 160 km/h (with
final ratio
4.53), 0-100km/h in 9.5 seconds
