Caterham Graduates Racing Classes

SigMax



Based on an upgrade of the 1600cc Ford Sigma engine Caterham Roadsport cars from 2008 – 2013 to Caterham Supersport specification, incorporating engine modifications (approx. 140bhp), limited slip differential and wide track suspension. Tyres are Yokohama A048s.


A 125 from 2008 – 2013 can be upgraded to this specification.





Mega



1600cc Rover K-series engine cars from between 2001 and 2007, with optional engine upgrades to produce approximately 140bhp. The cars can run standard or optional wide-track front suspension. An upgraded TranX gearbox may also be fitted. Tyres are Yokohama A048s.




Classic



Vauxhall and Ford engine Caterham Scholarship / Academy cars from 1995 – 2000. 1600cc 8-valve engines, producing around 100 bhp (1994-1999 Ford cross-flow, 2000 Vauxhall). The cars "live" rear axles with upgraded Rakeway rear driveshafts. Tyres are Yokohama A539s.



175



Based on the Caterham Motorsport 420R and R300 race car specification using Yokohama A048's





150



Formerly known as Sigmax VCT. Based on the Caterham Motorsport 310R specification with the 1600cc Ford Sigma TiVCT engine (approx. 150 bhp). Tyres are Yokohama A048s.


A 135 and 125 (2014 onwards) can be upgraded to this specification.





135



Formerly known as Sigma VCT. Based on the Caterham Motorsport 270R specification with the 1600cc Ford Sigma TiVCT engine (approx. 135 bhp). Tyres are Yokohama A048s.


A 135 can be upgraded to a 150.





125



Formerly known as Sigma. Includes both Caterham Roadsport specification cars from 2008 – 2013, with the 1600cc Ford Sigma engine (approx. 120bhp), and Caterham Roadsport specification cars, from 2014 onwards, with the 1600cc Ford Sigma TiVCT engine (approx. 125bhp). Tyres are Yokohama A048s.


Cars from 2014 onwards run a higher minimum weight of 615kg, compared to 605kg for the 2008 – 2013 cars.


2008 – 2013 cars can be upgraded to Sigmax specification, with the adoption of engine modifications, fitting a limited slip differential and wide track suspension.


2014 onwards cars can be upgraded to 135 and 150 specification.