VQ30 vs VQ35 - MY350Z.COM Forums

Thread Tools Search this Thread
Old 04-20-2004, 06:24 PM   #1
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Posts: 1,979
Thanks: 0
Thanked 0 Times in 0 Posts
Default VQ30 vs VQ35

Thought this was interesting, its regarding the maxima VQ35DE.

From Nissan Performance Mag,

What are the differences between the VQ30DE and VQ35DE? Thanks, Will.

Nissan continues to improve upon their engines as the VQ35DE replaces the VQ30DE in the Maxima (and powers the 350Z). The VQ35DE was designed for even more low end torque. Displacement was increased from 3.0L to 3.5L using a longer 95.5mm bore (the size of your piston) and 81.4mm stroke (how far the piston travels up and down) versus the 93 x 73.3mm bore x stroke in the VQ30DE. The Maxima’s variable intake system and new valve timing control system, NCVCS (Nissan Continuous Valve Timing Control System), improves volumetric efficiency through optimal timing control proportionate to engine speed and intake manifold length, increasing torque 9% at 2000 rpm and an additional 3% at 3200 rpm. An internal valve system which adjusts intake length relative to engine speed, NVIS (Nissan Variable Intake System), boosts horsepower and torque (roughly 11% at low engine speeds). Internal components went on a diet lowering the inertia mass and reducing friction of reciprocating parts to get quicker engine response and a quieter ride. Lighter pistons were designed to include a reduced skirt length, reduced pin offset, lower skirt rigidity, and a tapered pin boss making them the lightest in the world for their size. The engine’s connecting rods are fastened by bolts only, to reduce reciprocating weight. A new long reach spark plug design improves cooling performance by increasing the water jacket around the plugs, which strengthen knock resistance and allowed the ignition timing to be advanced. The VQ35DE block weighs in at 35 pounds lighter than its predecessor. In the end, horsepower jumps to [email protected] (240hp in the auto) and 240 ft lbs of [email protected] (265 in auto) while the VQ30DE is rated at [email protected] and 205 ft [email protected] rpm ([email protected] and 217ft [email protected] in the 2000+ VQ30DE-K’s). Nissan Motorsports just released a new head which has the VQ30DE chamber volume but the VQ35DE ports and titanium valves which raises the compression ratio to 12:1 if you’re interested in building a naturally aspirated Maxima.

Last edited by mchapman; 04-20-2004 at 06:31 PM.
mchapman is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
~Greddy Revolution Exhaust 03-08 350Z $1165 SHIPPED!!!~ [email protected] Engine 31 12-21-2016 09:32 AM
VQ30 heads? tig488 Forced Induction 16 08-17-2004 05:29 PM
Hi guys. Cancelled my order for the Z and got the S2000. hokiemax 2003-2009 Nissan 350Z 40 09-15-2003 01:03 PM
DOES VQ have over 500 bhp potential? BRS0903 Engine & Drivetrain 12 08-17-2003 08:54 AM
Aftermarket head gaskets for VQ35? MardiGrasMax Engine & Drivetrain 13 05-20-2003 10:48 AM

35, 39, block, differences, efficiency, engine, plugs, rods, variable, volumetric, vq30, vq30de, vq35, vq35de, vs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -8. The time now is 10:15 PM.

Copyright ©2002 - 2017, MY350Z.COM All Rights Reserved.
  • Ask a Question
    Get answers from community experts
What's your question?