Today, for the Flashback segment we would like to post about the Proton Waja 1.6 CPS.Here we want to share some history with all of you.As you already knew, the Proton Waja is the first model designed in-house by Proton. The development of the Waja began at the end of the 1990s together with the Campro engine, however the development of the Campro engine was still in progress at the time of its launch and therefore Proton had to source the 4G18 engine for the Waja from Mitsubishi before switching to Campro engines in 2006.By 2008, an updated Waja was launched with an improved Campro engine and a new center console with a new 2-DIN Clarion audio set.
The Waja Campro 1.6 Premium (CPS) comes with either a 5-speed manual gearbox or a 4-speed auto. It has electrically foldable remote wing mirrors, front seats with three-way adjustable headrests (up, down and tilt), leather seats all around, a gated automatic shifter for the automatic transmission model, new center panel switches, a keyless trunk remote system, ABS brakes, dual SRS airbags, fog lamps, twin tailpipes and projector Xenon headlamps with automatic headlamp levelling.
The Waja Campro 1.6 Premium (CPS) is powered by the 125 horsepower (93kW) at 6,500rpm and 150Nm of torque at 4,500rpm compared to the non-CPS Campro’s 110 horsepower (82kW) at 6,000rpm and 148Nm of torque at 4,000rpm. Engine displacement is 1,597cc, bore and stroke is 76mm x 88mm and the compression ratio is 10.0:1. To handle the higher power and torque output, the Campro CPS engine has an additional oil cooler.
On December 5, 2008, Proton announced that the next-generation Waja to be based on the Mitsubishi Lancer platform.So, let’s wait together for the new Waja replacement model.
How is the Proton Campro CPS works?
The CPS system integrated both cam profile switching (CPS) and a variable intake manifold (VIM). VIM switches between a long intake manifold at low RPMs and a short intake manifold at higher RPMs. According to Proton, a longer intake manifold is used at low RPMs to achieve slower air flow; this promotes better mixing with fuel. The short intake manifold allows more air in faster. This is beneficial at high RPMs. This seems to be slightly different compared to the usual VIM system where intake manifold width is also varied to control air velocity, and velocity tries to be maximised, but the idea behind the CPS VIM seems to be not wanting the air to go in as fast as possible at low revs to promote air-fuel mixture? Whatever it is, it seems to work, as the VIM does not stand alone but works with all the other engine systems together over different RPMs.
The CPS system uses a switching tappet and a trilobe camshaft to switch between two different cam profiles. One cam profile provides low valve lift, while the other cam profile has a high valve lift. The low valve lift cam profile is used at engine speeds of under 3,800rpm to maintain idling smoothness and ensure lower emissions, while the high lift cam profile is used when the engine is spinning more than 3,800rpm to improve peak horsepower and torque.
Below are the official details of the Proton Waja Campro 1.6 Premium (CPS).
Campro 1.6 CPS 125hp fuel injection engine.
Xenon head lamp.
Front and rear Disc brake.
Full body kit.
Front fog lamp.
Dual SRS Airbags.