Finally got rid of the old hood bumpers. The hood was sitting about half an inch lower than the fender. I wasn’t too sure how to put them in originally but I covered the ‘threads’ in soapy water and pressed them in at a slight angle while turning. Turns out they actually screw in or out once you get the first layer in.
To address airflow/pressure under the hood, Nissan sells a rubber weatherstrip kit that fits into the groove of the headlights. It’s like $17 for the pair. They look pretty good, too.
This fits perfectly with the right amount of clearance. It does not touch the 8thgen Manifold or the Master Cylinder. It’s very close but does not touch.
Replace your hood’s prop rod today with our Redline Tuning Hood QuickLIFT system. Progressive gas springs will lift and hold your hood without the need for a poorly placed prop-rod, simply start to lift your hood and let our QuickLIFT system take over. Your hood will lift and hold firmly at the raised position, eliminate your prop rod today.
This QuickLIFT kit will fit the following Nissan Altima model years: 2002 2003 2004 2005 2006.
I recently acquired a set of VHR injectors as shown below. Information seems to indicate that they flow approximately 385cc at 51psi, which translates to ~355cc at 43.5psi(3 bar.)
In my testing, these work extremely well in the bolt-on DE and have just enough fuel to handle the typical NA modified VQ. The duty cycle for a bolt-on car peaks right around 70%, so that should keep them in a good safe range for just about any VQ or HR that is naturally aspirated(this car makes about 260whp in a mustang dyno.)
I failed to mention it, but they are obviously plug-n-play for the Vq35(besides tuning of course).
Next to a GTR injector.
Same 12 hole spray pattern, albeit with smaller holes(less flow.)
This an overview of the main items and modifications required to install a 2007+ Altima and 2009+ Maxima VQ35DE engine into a vehicle using a VQ30DE(K) Engine Control Unit (ECU).
Blue highlighted items need to be fabricated. Some items are produced by me (or in the design process) to make this swap easier.
Red highlighted items are new gaskets that are highly suggested to replace. I usually source my OEM gaskets from nissanpartsdeal.com.
This is intended only as reference material. Refer to the Factory Service Manual (FSM) for Removal and Installation procedures as well as torque specifications. I am not responsible for any damages blah blah.
2007+ Altima
2009+ Maxima
Upper Intake Manifold
Smaller Ports
Larger Ports
Throttle Body
70mm
75mm
*Maxima and Altima Upper Intake Manifolds are interchangeable*
Timing Components
To use the newer engine with the older ECU, all timing components and sensors will need to be replaced with that of a VQ30.
Cam adapters will be needed for this specific engine. –Currently available from schmellyfart@gmail.com. ‘StephenMax’ type Cam Adapters will NOT work.
VQ30 Outer Timing Cover and Access Plates
VQ30 Inner Timing Cover
VQ30 Water Pump 21010-31U85
VQ30 Timing Chains
VQ30 Timing Gears
1 Crank Sprocket
2 Exhaust Cam Sprockets
4 Intake Cam Sprockets
VQ30 Intake Cam Bolts – to be used on VQ35 Exhaust Cams
(VQ35 Exhaust Cam bolts to be used on VQ35 Intake Cams)
Torque Cam bolts to VQ35 spec.
Water Pump O-Rings
Seal- O Ring 21049-ZL80B
Seal- O Ring 21049-ZL80C
Block to Timing Cover O Rings
Seal- O Ring 15066-ZL80B
Seal- O Ring 15066-ZL80D
Front Crank Seal
Inspect VQ35 Seal – Sometimes this seal is new enough where is can be reused and inserted into VQ30 Outer Timing Cover.
Seal-Oil, Crankshaft Front 13510-31U10
VQ30 Timing Chain Guides
Main Timing Chain Tensioner
Either VQ30 or VQ35 Main Timing Chain Tensioner & Guide may be used, but they must not be mixed together. For example:
VQ30 Main Timing Chain Tensioner & VQ30 Main Timing Chain Guide
VQ35 Main Timing Chain Tensioner & VQ35 Main Timing Chain Guide
VQ35 Secondary Timing Chain Tensioners
These may need replacing depending on age of the engine because the VQ35 Timing Chain creates different grooves in the tension than the VQ30 Timing Chain that will be installed. Use only VQ35 Secondary Timing Chain Tensioners.
Oil Pans – A few options:
VQ30 upper oil pan, lower oil pan, and oil pick up tube.
VQ35 lower oil pan is deeper and narrower than VQ30 lower oil pan.
Pro: reduced chance of oil starvation on hard cornering
Con: Reduced ground clearance
Use dipstick that matches your lower oil pan!
Water Pipes
VQ30 Water Outlet Pipe (transmission side of engine)- VQ30 uses two coolant sensors, VQ35 uses one.
2x Water Outlet Pipe Gaskets -11062-31U00
Water Inlet Pipe (Near Front Valve Cover)
The HR head on these VQ35 has an extra port at the Water Inlet Connector for the Oil cooler. I personally found the Oil Cooler to interfere with Crank Sensor, so I removed mine – YMMV. If removing the oil cooler, this hole will need to be plugged via tap and hole plug, or Water Inlet block off plate – (Pending field test). (Oil Cooler removal will also require VQ30 Oil filter stud 11024-4P10A and Water Jacket Blind Plug 11051-60U2A). Once blocked off, VQ30 or VQ35 Water Inlet Connector can be used.
Gasket-Water Inlet 13050-31U05
Thermostat
If VQ35 Thermostat is used, approx. 2” of the lower radiator hose will need to be cut off of Thermostat end to fit. (2002-2003 Maxima Lower radiator hose MIGHT work without trimming – not yet verified)
VQ30 Thermostat will bolt up without issue.
Thermostat Gasket: Gasket-Water Inlet 13050-31U00
Injector Clips
1995-1999 Maxima needs VQ35 Injector clips soldered/crimped and sealed to the engine harness
2000-2001 Maxima Injector clips require no modification.
Fuel Rail
VQ35 has a returnless fuel rail.
Convert to returnless fuel system using guides on Maxima.org (Easier)
Modify VQ30DE-K Fuel Rail to fit VQ35 and retain return fuel system (Harder)
Throttle Body
The original Throttle Body (TB) is driven electronically, the VQ30 ECU requires a cable driven TB. Due to confined space around Throttle Flange, options are limited. A custom throttle body adapter or modified throttle body is necessary (Finalizing Design).
70mm 2001 Pathfinder TB w/ adapter. This TB is ideal due to OEM quality, TPS bolts up, and its Idle Air Control Valve (IACV) works very well with the VQ30 ECU. Minor wire harness modification required for IACV.
Heavily modified Mustang (Foxbody or SN95) TB
Heavily modified Q45 TB
Heavily modified VQ35 TB converted from electronic to cable.
Exhaust Studs
Cylinder 5 and 6 exhaust studs must be removed and installed in opposite holes in order to reuse older VQ30 headers or exhaust manifolds.
Valve Covers
VQ30 valve covers fit, but are also heavier. I would only recommend using the front VQ30 valve cover and spark plug cover if you want to keep it stealthy. Some Coil pack shenanigans may be required. Rear VQ30 valve cover is not recommended as the Upper Intake Manifold (UIM) does not clear the coil packs.
Emissions
Optional depending on personal preference. All emissions systems can be retained with the exception of EGR. Take good notes and mark the inlet/outlet of every emissions part, all can be reconnected to VQ35 UIM. Simplified Vacuum Hose routing diagram coming soon.
VIAS
Mine are currently installed but not controlled. Currently awaiting testing to verify optimal setup with VQ30 ECU.