A version 2 model, applicable to exhaust side VTC.
To meet modifications to inlet valve seat internal diameters and ports, two versions Spec-1, diameter 31 and Spec-2, diameter 32-was created.

Easy increase of compression ratio

Compared to a genuine VQ35 head, the combustion chambers of the genuine VQ30 are used as the base for casting a processing, providing the compact combustion chamber required by an NA engine. The volume has been greatly reduced. With the combustion chamber volume reduced from 56cc to 46cc, the compression ratio is increased without head milling (using a genuine piston, from 10.3 to 12.0). In addition, by changing the piston crown shape, a compression ratio of 13.5 is also possible.

Easy increase of intake port potential

While this head uses the dynamic valve system of the VQ30 engine, the intake port uses the high-potential port used in the VQ35. Spec-2 uses an intake valve seat diameter of 32 to modify the intake port inside R to realize performance that greatly exceeds that of a genuine VQ35 engine (please see the table at the VQ35 Intake Port performance comparison).

* The VQ35DE engine is a V6 engine using VTC. Do not use simple milling of the head to reduce combustion chamber volume.

Compared to genuine metal gaskets, the use of molybdenum coating helps withstand higher compression ratios and improves surface pressure around the bore.

A line up of two different operating angle settings-Spec-1 and Spec-2. Choose the best one for your particular use.

Spec-1

Spec-2

Reinforced springs for use with the high-lift cam in VQ and VK engines. Single springs with the highest level of materials and design to work with the standard head, valves and retainers.

Based on experience in competition with the RB26, this oil pump for the VQ35 uses SCM material for gear machining to help avoid the oil pump gear damage that can occur during overruns caused by misshifts and other conditions.

* For 8,500 rpm

Connecting rod bolts designed for use of genuine connecting rods in high-rotation use. Use of SNCM increases fatigue strength by 40% compared to genuine parts (based on fatigue analysis of connecting rod assembly conditions).

* For 7,200 rpm

* Tightening procedure and torque level differs from that of genuine bolts. Please refer to installation manual.

Engines equipped with the VTC function show improved power at high rpm, more stable idling and stable torque in the low- to mid-speed ranges. By changing the 40°standard declination angle to 55°, a greater choice of camshaft setting is made possible.

* When using a camshaft with a large operating angle and large-angle VTC, please make sure that there is sufficient valve recess so that the intake valve does not come in contact with the piston.

This is a high-flow volume fuel pump for intank pump. It is a part realized by tuning of the internal orifice, which results in increased fuel intake volume (from 90 to 165L/h, at 12.0V, P=300kPa) , and increased fuel output volume.