Proton i-GT vs Campro VVT, CFE vs GEP3 – energy, torque curves, gas effectivity check outcomes in contrast

The Proton Tech Showcase has revealed that the i-GT 1.5 litre engine that now serves within the X50 facelift in addition to the 2026 Saga MC3 can be headed for the forthcoming, up to date X70, X90 and S70and the carmaker has revealed additional particulars on the brand new engine household.

Proton has revealed that the i-GT 1.5 litre engine, in its naturally aspirated and turbocharged varieties, will characteristic native content material proportions of 54% and 45%, respectively, and the Malaysian automaker has additionally detailed how the brand new engines are improved in comparison with their predecessors.

Starting with the headline figures, in turbocharged kind the 1.5 i-GT engine within the facelifted X50 outputs 133 kW (181 PS) and 290 Nm, beneficial properties of two.3% and 13.7% over these of earlier generations, in keeping with Proton. Its claimed gas consumption of 6.1 litres per 100 km represents a 16.1% discount, and Proton claims an industry-leading torque-to-weight ratio of two.64 Nm per kg.

For the 1.5 i-GT engine in naturally aspirated kind as discovered within the Saga MC3, its outputs of 88 kW (120 PS) and 150 Nm characterize beneficial properties of 25.7% and 25% for energy and torque respectively, whereas its 11.6-second 0-100 km/h acceleration time is 21.6% faster than that of its predecessor, the Saga MC2 which did the benchmark run in 14.8 seconds.

In contrast towards Proton’s older turbocharged engine, the 1.6 litre, port-fuel-injected turbocharged CFE engine, the 1.5 litre i-GT turbo mill affords 41% extra helpful torque, in keeping with Proton, and the brand new engine demonstrates larger torque outputs throughout all the engine rev vary, from 1,000 to six,000 rpm.

Just like the older 1.6T engine, the turbocharged i-GT arrives at peak torque at 2,000 rpm, although it seems to taper down from peak torque for longer in comparison with the older engine.

When it comes to energy, the 1.5 litre turbocharged i-GT additionally affords greater outputs throughout the rev vary, a claimed 17% extra, and the brand new engine brings a steeper ramp up in direction of its 5,500 rpm output peak, in comparison with the 1.6T CFE engine’s plateau, which additionally peaks at 5,500 rpm earlier than the 6,000 rpm restrict.

When in comparison with the 1.5 litre CEP3 three-cylinder engine beforehand within the X50, the 1.5 litre turbocharged i-GT engine affords a claimed 14% extra helpful torque (290 Nm, up from 255 Nm within the X50 Flagship), and a couple of% extra energy (up from 177 PS of the X50 Flagship).

Energy and torque are elevated throughout a lot of the rev vary, although energy and torque bands of the i-GT seem to dip beneath these of the GEP3 Turbo engine from 4,500 rpm to five,250 rpm. Check bench gas consumption figures for the 1.5 litre i-GT turbocharged engine reveals a 6% enchancment over the 1.5L GEP3 three-cylinder turbocharged engine, and a 20% enchancment over the 1.6L CFE turbocharged engine.

In contrast between naturally aspirated engines, the NA model of the 1.5 i-GT engine affords claimed beneficial properties of 25% extra torque and 26% extra energy, relative to the smaller displacement, also-naturally aspirated 1.3 litre VVT engine. In keeping with official specs listed for the 2026 Saga MC3, this BHE15-CFN port-injected engine outputs 120 PS at 6,100 rpm and 150 Nm from 4,000 rpm to five,000 rpm.

As talked about, the 1.5 litre i-GT engine in naturally aspirated and turbocharged varieties can be featured in upcoming up to date iterations of the Proton X70, X90 and S70.

GALLERY: Proton i-GT engine presentation slides

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