Nissan VQ35HR 3.5L Engine Specs, Problems, Reliability. This 3.5-liter engine is the result of the VQ-series modernization in 2006. The VQ35HR engine was installed in rear drive Nissan and Infinity designs basically. More than 80% of DE parts were redeveloped and updated to allow the engine operates at high rpm for a very long time.
Aluminum cylinder block was reinforced and made a bit taller (by 8.4 mm). In this case, the length of linking rods was increased to 152.2 mm. New lightweight aluminum pistons increased the compression ratio to 10.6:1. Both camshafts are equipped with variable valve timing system CVTC. Valves have a larger diameter and harder springs. Camshafts specifications: duration 248/248, valves lift 10.54/ 10.54 mm.
The engine got redeveloped plastic consumption manifold and new sports headers. New consumption system cuts air circulation by 18%, while exhaust system flow increased by 25% for better ventilation of the cylinder volume.
From 2010 Nissan produced hybrid designs based on the VQ35HR engine utilizing a lithium-ion battery. Total power of this unit is 360hp.
VQ35HR Engine Problems and Reliability
- Rough idle of the VQ35HR. The most common reason is the exhaust camshaft caps, check and change them. Inspect out MAF-sensor condition.
- The VQ35HR as the VQ35DE is a strong and very reputable engine. Its maximum life span is more than 250,000 miles of smooth operation.
Nissan VQ35HR 3.5L Engine Specs
|Production years||2006-present day|
|Cylinder block material||Aluminum|
|Cylinder head material||Aluminum|
|Fuel system||Fuel injection|
|Number of cylinders||6|
|Valves per cylinder||4|
|Type of internal combustion engine||Four-stroke, naturally aspirated|
|Power, hp||315 hp (232 kW)/6,800|
|Torque, lb ft||268 lb-ft (363 Nm)/4,800|
|Engine oil weight||5W-30, 5W-40, 10W-30, 10W-40|
|Engine oil capacity, liter||4.7|
|Oil change interval, mile||9,000 (15,000 km) or 12 months|
|Applications||Infiniti G35 Sedan, Nissan 350Z, Nissan Fuga 350 GT, Infiniti EX35 Crossover, Infiniti M35, Infiniti M35h, Nissan Fuga Hybrid, Nissan Cima, Mitsubishi Dignity, Infiniti Q50 Hybrid, Infiniti Q70 Hybrid|