What is Campro? Campro is short for Cam Profile that is the greatest engine that developed together with Lotus and Proton. This technology was developed for the Proton Gen-2, the Proton Satria Neo, the Proton Waja Campro, and the Proton Persona and for the future models of proton. This Campro is uses a drive-by-wire technology that means no more uses the throttle link cable.
The basic DOHC Campro engine coded as S4PH has 16-valve 1.6 L engine that produces 110 bhp(82 kW) @ 6,000 rpm of power and 148 N m (109 ft lbf) of torque. This S4HP engine can be matched with Cam Profile Switching (CPS) and Variable Inlet Manifold (VIM) technology. Besides this engine, Proton also has produces the 1.3 Litre version of the Campro engine. Even though the S4PH engine seems is a powerful engine, its performance is reportedly sluggish when driving uphill where the driver the manual transmission needs to shift a lot between 2nd and 3rd gear. This is because the torque actually decreases before picking up back to the maximum torque at 4,000 rpm.
For DOHC engine for 1.3 L coded as S4PE is produces 94 bhp (70 kW) @ 6,000 rpm and the torque of 120 N m (89 ft lbf) @ 4,000 rpm, which is more stronger than the other 1.3 L rivals.
The Campro CPS engine uses a variable valve lift system (Cam Profile Switching system) and a variable length intake manifold (VIM; used in the 2008 Proton Saga) to boost the maximum power and improve the CPS engine`s torque curve over the standard DOHC Campro engine. A basic DOHC engine equipped with a variable-length intake manifold called as the Campro IAFM (Integrated Air-Fuel Module). This engine uses for the second – generation Proton Saga. With IAFM, the 1.3 L engine produces 98 bhp (73 kW) @ 6,500 rpm.
