[home][rumors and news][model release matrix][dealer network][desktop calendar][exhaust notes][tov forums][links][search][sponsors][garage][login]

Tire Rack Upgrade Garage
 Search for a Dealer:
 Canadian Flag US Flag
 Honda Acura
 ZIP  
Acura
There are currently no active Acura promotions
Honda
There are currently no active Honda promotions
American Honda reports strong sales numbers for September 2017
More.......................
Honda will be showing a Sports EV Concept at the 2017 Tokyo Motor Show
More.......................
The 1.5T in the 2018 Accord has VTEC!
More.......................
Honda Urban EV Concept unveiled at the Frankfurt Motor Show
More.......................
American Honda Reports August 2017 Auto Sales
More.......................
Some Civic Type Rs are overheating on track
More.......................
Spied on the STREET! Next Gen RDX
More.......................
Acura Reveals Striking New Design for 2018 Acura RLX; Debut Set for Monterey Automotive Week
More.......................
Professional Motorsports --> Re: Round 15 - MotoGP - Australian GP SPOILERS
Join Discussion......
MDX --> Did it - mdx hybrid
Join Discussion......
General Talk --> Re: Proud new owner of...
Join Discussion......
TSX --> Re: Sudden problems.
Join Discussion......
Professional Motorsports --> Re: F1 - 2017 United States Grand Prix
Join Discussion......
S2000 --> Re: Ehh. Need S2000 technical help
Join Discussion......
General Talk --> Re: Acura falls to below average in CR quality survey
Join Discussion......
Accord --> Re: 2018 Accord Tight Driver Knee Room
Join Discussion......
Accord --> Re: 18 Accord pics (June)
Join Discussion......
Accord --> Re: I saw my first 2018 Accord
Join Discussion......
Today's Reading Links --> Re: H2 fueling stations cheaper than charging stations...
Join Discussion......
Today's Reading Links --> Re: 5,000 deaths annually from dieselgate in Europe
Join Discussion......
General Talk --> Re: Do you wrench on your own car?
Join Discussion......
Civic --> Re: Civic Si-R with the 2.0t engine?
Join Discussion......
Today's Reading Links --> Re: 2019 Audi A7
Join Discussion......
Honda Debuts 'Variable Cylinder Management' V6 3.0-liter i-VTEC Engine
 Date: June 18, 2003 06:16
 Submitted by:  danielgr
 Source: Honda press release
 Credibility Rating: 10


Honda Debuts 'Variable Cylinder Management' V6 3.0-liter i-VTEC Engine
- New Powertrain Will be Featured in New Inspire Model -

Tokyo, June 18, 2003 --- Honda Motor Co., Ltd. today introduced a new V6 engine featuring the latest version of its i-VTEC ('intelligent' VTEC) technology. Through new 'Variable Cylinder Management' technology, the V6 3.0-liter i-VTEC engine runs on all six cylinders during acceleration and when high output is required, yet employs only three cylinders during cruising and at low engine loads. The new engine thus combines the effortless performance of a 3.0-liter V6 engine, while offering superior fuel economy of 11.6 km/liter*1 (27.3 mpg) --- comparable to that of a 2.4-liter 4-cylinder engine*2. This new powertrain will debut in the new Inspire model scheduled for release in Japan June 19, 2003.

In addition to its low fuel consumption, this V6 3.0-liter i-VTEC engine also significantly reduces exhaust emissions, helping the Inspire meet Japan's Ministry of Land, Infrastructure, and Transportation requirements for Ultra-Low Emissions and 2010 fuel consumption standards, and making it eligible for preferential 'Green Tax' treatment. The new engine achieves this by combining high-density catalytic converters located directly below each cylinder head for further improved exhaust gas processing at low engine temperatures with exceptionally fine air / fuel ratio control.

The adoption of a variable intake system, over-sized intake valves, and low back-pressure catalytic converters further improve engine respiration efficiency, helping deliver class-leading performance, with maximum output of 184 kW (250 PS, 247 HP) and maximum torque of 296 N-m (30.2 kg-m, 218 lb-ft)*3, all on unleaded regular gasoline.

*1 Inspire 10-15-mode fuel consumption, Ministry of Land, Infrastructure, and Transportation test values
*2 Vehicle in the same weight class as the Inspire: Accord Sedan 2.4 liter (10-15-mode fuel consumption of 12.0km / liter, 28.2 mpg)
*3 Inspire model net figures


V6 3.0-liter i-VTEC engine

The 'Variable Cylinder Management' system analyzes throttle opening, vehicle speed, engine speed, and gearing to determine that the car is cruising, and then idles the intake and exhaust valves of the three cylinders in the rear cylinder bank. With zero valve lift, the cylinders are sealed, and no fuel is injected. Pumping losses are thus reduced by as much as 65% and low fuel consumption is realized.

When operating in 3-cylinder mode, engine vibration is reduced by extrapolating vibration from the change in crankshaft rotation speed and sending the information to the 'active control' engine mount, which compresses / extends an actuator in same-phase, same-period motion to dampen the engine mount. Similarly, a speaker creates an opposite phase sound or 'active noise control', to provide a canceling effect, for a quieter interior which leaves the driver unaware of changes in cylinder activation.



http://world.honda.com/news/2003/4030618_1.html

Last edited by JeffX on June 18, 2003 09:47

Click Here to Submit Your Comments

Viewing Threshold (What is this?)

[fancy] [flat] [simple]
Subject Thread Originator Replies Last Post
  This was done by Cadillac in the eighties.
Saintor 4
  So this i-VTEC doesnt have VTC??
TheAnswer 9
  Great prospects for the new TL
osaze 1
  US Accord?
domn 10
  Mercedes has this feature in S-Class
Terencemunro 1
  Can some one convert the figures?
ivtec105 2
  Applause
Accordian 7
  MPG #'s
99SI 0
  IMA version of this engine would be my dream
tksung 0
  This may be the first PZEV V6
civic_cx_92 2
TOV First Drive: 2018 Honda Accord
Read Article....................
2018 Honda Accord Specifications and Features (FINAL)
Read Article....................
2018 Honda Accord Hybrid PR Photo Gallery
Read Article....................
2018 Accord Touring 2.0T PR Photo Gallery
Read Article....................
2018 Accord Touring 1.5T PR Photo Gallery
Read Article....................
2018 Honda Accord Sport 2.0T PR Photo Gallery
Read Article....................
Contact TOV | Submit Your Article | Submit Your Link | Advertise | TOV Shop | Events | Our Sponsors | TOV Archives
Copyright © 2017 Velocitech Inc. All information contained herein remains the property of Velocitech Inc.
The Temple of VTEC is not affiliated with American Honda Motor Co., Inc. TOV Policies and Guidelines - Credits - Privacy Policy