Following our recent theme of videos on the Lotus T125, here Brian Wood who is Technical Director of Cosworth talks about the companies involvement in the T125 program with Lotus. The unit, as used in the IZOD IndyCar racers is a 3.5l V8 producing 640bhp which in a car weighing 560kgs gives almost 1000bhp/tonne.
|Duty cycle type:||4 stroke reciprocating piston, normally aspirated|
|8 cylinders in banked ‘V’ configuration at a 90 degree angle|
Cast aluminium alloy block/heads, forged aluminium pistons, steel crankshaft
|Maximum Speed:||Limited to 11,000rpm|
|Timing:||Double overhead cams driven via compliant gearing from crankshaft|
|Fuelling:||8 injectors supplied by a pressurized system at 100 bar|
|Ignition:||8 ignition coils each driving single spark plug|