The H4-5T Low Intensity Brochure 4530HBC4BC001 refers to technical documentation for the 1.5-liter turbocharged gasoline engine used in the Haval H4 SUV. This engine family (coded GW4G15F/GW4B15) features a 1500ml displacement with L4 configuration, direct injection, and variable valve timing, delivering 124kW peak power at 5,600 RPM. The brochure likely details performance parameters optimized for urban driving scenarios rather than high-intensity off-road use, aligning with H4’s positioning as a front-wheel-drive city SUV.
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What technical specs define the H4-5T engine?
The GW4G15F powerplant combines a turbocharged aluminum block with DOHC valvetrain, producing 285Nm torque from 1,400 RPM. Its 10.5:1 compression ratio enables efficient combustion while maintaining 93-octane fuel compatibility. Pro Tip: Regular intake valve cleaning is crucial due to direct injection design—carbon buildup can reduce airflow by 15% within 60,000 km.
Beyond basic specifications, this engine employs a dual-path cooling system that prioritizes cylinder head temperature control during high-load operation. A real-world analogy: Like a marathon runner regulating body heat, the thermal management system alternates coolant flow between block and head compartments. Transitionally, this design prevents knocking under acceleration while maintaining cabin heating efficiency in cold climates. The integrated exhaust manifold further reduces turbo lag, delivering 90% of peak torque below 2,000 RPM – crucial for stop-and-go urban driving.
How does H4-5T differ from H6 engines?
While sharing core architecture, H4’s 1.5T omits the 48V mild-hybrid system available in H6 models. The H4-5T focuses on cost efficiency through simpler single-scroll turbocharging versus H6’s twin-scroll units. Transitioning between models, buyers sacrifice 6-8% fuel efficiency but gain 12% lower maintenance costs due to reduced component complexity.
| Feature | H4-5T | H6 2.0T |
|---|---|---|
| Max Power | 124kW | 155kW |
| Torque Curve | 1,400-5,000 RPM | 1,600-5,500 RPM |
| Fuel System | Direct Injection | Dual Injection |
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FAQs
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Yes, Haval mandates 0W-20 full synthetic to protect turbo bearings. Conventional oils oxidize faster under 200°C turbo temperatures.
Can the H4-5T be tuned for higher output?
Limited to 10% ECU remaps safely—the single-scroll turbo reaches choke flow at 1.3 bar boost. Exceeding this risks thrust bearing failure within 15,000 km.
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