T616 specification

Mainly based on previous chassis T610 ( chassis and aerodynamics ), but devoted to the Light class, the T616 had a far more sucessful carrier

Impressed by a succession of good results, in IMSA as well as at Le Mans, some competitors began to take an interest in this rotary engine, the butt of so much criticism in its early days but now seen to have some virtues after all. For example, Jim Busby, asked by the American manufacturer BF Goodrich to set up a World Championship team, chose to install the inexhaustible twin-rotor 13B in the two Lola T616 chassis he had just bought.
The decision repaid him forthwith with a C2 category (the new name for the old category C Junior) win at Monza. And so at Le Mans there was American opposition for the Mazdaspeed team, which entered two 727Cs, updates of the 1983 model. The cars had revised aerodynamics (among other things, to reduce ground effect), but unfortunately they still had an engine whose output was only 320bhp. They put up a tremendous fight. Until nightfall they were grouped together, but then the Busby, Knoop & Hayje car had suspension and exhaust problems. Advantage Mazda? Not really, because in the early hours the 727C of David Kennedy and the Martin brothers dropped back. Soon afterwards, Terada,Yorino and Dieudonnd lost ground. In the end, honour was saved, thanks to an American team and a British chassis; in the winning car was Yoshimi Katayama, famous for having driven Mazdas all his competitive life.

parler du Plimotor

DESIGN / TECHNICAL SPECIFICATIONS

CHASSIS
  Aluminum honeycomb monocoque with full-length side pontoons (from pedal-box to behind rear bulkhead), designed by Eric Broadley. Ground effects chassis
BODYWORK
  Carbon fiber and Kevlar.
SUSPENSION
  Inboard pushrod front suspension and outboard wishbone / coil / damper rear.
GEARBOX / TRANSMISSION
  5 speed Hewland
BRAKE SYSTEM
  13-inch ventilated discs. AP 4-pot calipers outboard
ENGINE
 
 
INSTRUMENTATION
 
OIL SYSTEM
   
WHEELS
  Front : 13' x 11'
Rear : 13' x 14'
BF Goodrich Comp TA radial
DIMENSION AND WEIGHT
  Wheelbase:
Track Front
Track Rear
Weight



700 kg
ELECTRICAL / ELECTRONICS
 
FUEL SYSTEM
  Maximum fuel cell capacity can be up to 120-liter fuel tankage.

PLANS and DETAILS






T616 - Mazda 13B Rotary

Equiped with the Mazda rotary engine, the BFGoodrich cars became one of the most reliable and successful GTP Light. Highlight being 1984 LeMans class win:. the two cars finishing at the top of the GpC Light class.
   
Maximum power
Maximum torque
Maximum rpm
Displacement
Layout
Compression ratio
Carburation
Lubrication
300 hp
26 kg/meter @ 8000 rpm
8.500
850 cc per rotor
twin rotors
9.4 to 1
Bosch fuel injection
Dry sump


T616 - Polimotor L4
Kerimid version based on a Cosworth-BDA

 
Maximum power
Maximum torque
Maximum rpm
Displacement
Layout
320 hp
1975 cc ( 90 x 77,62 mm )
9500

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