In 2007, mainly for Infiniti cars, the most advanced engine from the VQ series was introduced, designated as VQ37VHR. This unit replaced the VQ35HR and was developed on its basis. The block of cylinders VQ35HR has grown slightly in height, along with this, its rigidity has been increased. A crankshaft with a piston stroke of 86 mm, long connecting rods, light pistons with a Compression ratio of 11. This made it possible to increase the working volume from 3.5 liters to 3.7 liters.
The 3.7-liter V6 Nissan VQ37VHR engine (or VQ37 for short) is assembled at the company’s Iwaki plant and installed on many well-known models of the Japanese concern on the Front Midship platform. At the moment, such a power unit is installed only on the Fuga sedan and 370Z coupe.
VQ30 family: VQ30DE, VQ30DET, VQ30DD, VQ35DE, VQ35DD, VQ35HR, VQ37VHR, VQ40DE.
Specifications
| Production years | 2007 |
| Displacement, cc | 3696 |
| Fuel system | injector |
| Power output, hp | 330/7000 333/7000 355/7000 |
| Torque output, Nm | 360 – 375 |
| Cylinder block | aluminum |
| Block head | aluminum 24v |
| Cylinder bore, mm | 95.5 |
| Piston stroke, mm | 86 |
| Compression ratio | 11.0 |
| Hydraulic lifters | no |
| Timing drive | chain |
| Turbocharging | no |
| Recommended engine oil | 0W-30 / 0W-40 / 5W-30 / 5W-40 / 10W-30 / 10W-40 / 15W-40 |
| Engine oil capacity, liter | 5.4 |
| Fuel type | petrol |
| Euro standards | Euro 4/5 |
| Fuel consumption, L/100 km (for Q70) — city — highway — combined |
15.3 8.4 10.9 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 210 |
| Oil consumption, gr/1000 km | up to 500 |
| Oil change interval, km | 15000 |
The engine was installed on:
- Infiniti G37 V36, Q40 1 (V36), Q50 1 (V37), Q60 1 (CV36), M37 4 (Y51), Q70 1 (Y51), EX37 1 (J50), QX50 1 (J50), FX37 2 (S51), QX70 1 (S51);
- Nissan 370Z 6 (Z34), Fuga 2 (Y51), Skyline 12 (V36);
- Mitsubishi Proudia 2 (BY51).
Disadvantages of the VQ37VHR engine
- The bulk of the complaints on the forums are related to oil consumption and there are several reasons for this: firstly, this is the natural wear of the unit due to overly aggressive operation, and secondly, the catalysts here are afraid of bad fuel and break down rather quickly, and their crumbs are drawn into the combustion chambers where they scratch the walls and form scuff marks.
- Another known problem is the oil passages under the front cover. Until 2012, they were made from paper, which was often squeezed out already by 100,000 km. All this is fraught with leaks, a drop in lubricant pressure in the unit and rotation of the liners.
- With active driving, this motor is very hot and it is important to monitor the cooling system. And not only periodically wash the radiators, but also change the cap of the expansion tank. There are no hydraulic lifters here, so do not forget about adjusting valve clearances.
Frequently asked questions about the Nissan VQ37VHR
How much power does the Nissan VQ37VHR make?
Power output of the Nissan VQ37VHR, hp: 330/7000; 333/7000; 355/7000. Torque, Nm: 360 - 375.
How much oil does the Nissan VQ37VHR take and which one?
Engine oil capacity: 5.4 liters. Recommended oil: 0W-30 / 0W-40 / 5W-30 / 5W-40 / 10W-30 / 10W-40 / 15W-40.
Does the Nissan VQ37VHR have a timing belt or chain?
The Nissan VQ37VHR uses a timing chain.
Is the Nissan VQ37VHR turbocharged?
No, the Nissan VQ37VHR is naturally aspirated.
Does the Nissan VQ37VHR need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Nissan VQ37VHR last?
The typical lifespan of the Nissan VQ37VHR is ~250 000 km with proper maintenance.
What is the fuel consumption of the Nissan VQ37VHR?
Q70: city 15.3, highway 8.4, combined 10.9 L/100 km.
What cars was the Nissan VQ37VHR installed on?
Infiniti G37 V36, Q40 1 (V36), Q50 1 (V37), Q60 1 (CV36), M37 4 (Y51), Q70 1 (Y51), EX37 1 (J50), QX50 1 (J50), FX37 2 (S51), QX70 1 (S51); Nissan 370Z 6 (Z34), Fuga 2 (Y51), Skyline 12 (V36); Mitsubishi Proudia 2 (BY51).
What are the common problems of the Nissan VQ37VHR?
The bulk of the complaints on the forums are related to oil consumption and there are several reasons for this: firstly, this is the natural wear of the unit due to overly aggressive operation, and secondly, the catalysts here are afraid of bad fuel and break down rather quickly, and their crumbs are drawn into the combustion chambers where they scratch the walls and form scuff marks. Another known problem is the oil passages under the front cover. Until 2012, they were made from paper, which was often squeezed out already by 100,000 km. All this is fraught with leaks, a drop in lubricant pressure in the unit and rotation of the liners. All known problems.
