[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
2016 ILX and 2015 HR-V to debut at 2014 Los Angeles Auto Show
More.......................
New Acura and Honda Products Fuel Surge in September Automobile Sales
More.......................
2015 CR-V goes on sale tomorrow. Full details released.
More.......................
All-new Honda Civic Type R: unrivalled against the brand's iconic performance flagship models
More.......................
Honda reveals 2015 CR-V
More.......................
Honda adds Special Edition trim level to 2015 Civic Lineup
More.......................
Honda releases sales figures for August 2014
More.......................
2015 Accord goes on sale today, "Gets Multiple Feature Upgrades"
More.......................
TLX --> I was told the TLX transmission logic "learns" (new 0-60 times)
Join Discussion......
Today's Reading Links --> Re: Tesla P85D: AWD, 0-60 in 3.2 seconds
Join Discussion......
General Talk --> Re: Big Year for HondaUK in 2015! Euro CR-V
Join Discussion......
Today's Reading Links --> Re: Honda, in wake of 5th Fit recall, appoints first quality czar; Ito takes 20% pay cut
Join Discussion......
NSX --> Re: NSX new info!!!(my driving the other three Hybrid Hypercars)
Join Discussion......
RLX --> Re: Acura RLX SH-AWD Quick Review
Join Discussion......
Accord --> Re: Accord Euro - Axed
Join Discussion......
Today's Reading Links --> Re: More TLX reviews, Edmunds (V6), Motortrend (I4)
Join Discussion......
Civic --> Re: 2016 Civic (all new 10th-generation)
Join Discussion......
General Talk --> Re: Airbag recall disaster lessons!
Join Discussion......
RDX --> Re: AWD in RDX/2015 and Forester/2015
Join Discussion......
TLX --> Re: Driving 2015 SH-AWD TLX this week
Join Discussion......
Accord --> 6-Speed Auto in 2013/14 V6
Join Discussion......
Accord --> Re: Accord LX or Sport - Canada
Join Discussion......
Today's Reading Links --> Re: WTF!? Honda AXES Euro ACCORD
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: 2015 Acura TLX
Read Article....................
Photo Gallery: 2015 Acura TLX 2.4 P-AWS
Read Article....................
Photo Gallery: 2015 Acura TLX 3.5L SH-AWD
Read Article....................
TOV Photo Gallery: 2015 Honda Fit
Read Article....................
PR Photo Gallery: 2015 Honda Fit
Read Article....................
TOV Dyno Test: 2014 Accord Hybrid
Read Article....................
Contact TOV | Submit Your Article | Submit Your Link | Advertise | TOV Shop | Events | Our Sponsors | TOV Archives
Copyright © 2014 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