Honda Car Forum


 

Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Discussion > Honda Technical

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 14 Jan 2011, 06:16 pm
Junior Member
 
Join Date: Jan 2011
Posts: 1
Default What does vtec do???

what does vtec do? does it make the car faster??































the new civics have ivtec.. is that any different from vtec?? how bout dohc vtec and sohc vtec? any differences???
Reply With Quote
  #2 (permalink)  
Old 14 Jan 2011, 06:31 pm
Junior Member
 
Join Date: Mar 2009
Posts: 4
Default

It kicks in YO!!!
Reply With Quote
  #3 (permalink)  
Old 14 Jan 2011, 06:46 pm
Senior Member
 
Join Date: Aug 2007
Posts: 287
Default

read up















http://auto.howstuffworks.com/question229.htm
Reply With Quote
  #4 (permalink)  
Old 14 Jan 2011, 07:01 pm
Senior Member
 
Join Date: Oct 2007
Posts: 881
Default

Variable Valve Timing and Lift Electronic Control.































SOHC VTEC















Single Overhead Camshaft controlling both Intake and Exhaust valves.















After certain conditions are met like speed and RPM, computer activates the VTEC solenoid causing a different set of rockerarms on the Intake side to become active, these rockerarms rest on bigger lobes on the camshaft that allow the Intake valves to remain open slightly longer thus ensuring more air and fuel is pulled in on the intake stroke. More air/fuel = more compression and a stronger burn thus creating more power. Found in the D and F series engines.































DOHC VTEC















Double Over Head Camshaft has 1 camshaft controlling all the Intake valves and 1 camshaft controlling all the Exhaust valves.















Same principle as SOHC VTEC except now with 2 camshafts and more lobes, on the VTEC crossover both Intake and Exhaust valves are opened longer instead of just the Intake. Mostly found in the B and K series engines. Also found in some H and F series engines.































iVTEC















Same principle as the rest except now based on engine load, RPM, speed, gear, etc... the ECU can now advance the intake camshaft's mechanical timing. Found in nearly all new Honda's, both the SOHC and DOHC versions.































lmgtfy.com
Reply With Quote
  #5 (permalink)  
Old 14 Jan 2011, 07:16 pm
Junior Member
 
Join Date: Dec 2010
Posts: 8
Default

thee all-mighty VTEC!!!
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
How Vtec Work and wAt Vtec Do and how do u know if when a vtec kick in? azn_gtc Honda Technical 6 19 Jun 2008 08:29 pm
Do all the 5th gen. preludes come with vtec or dohc vtec? or sohc vtec? Ruben K Honda Technical 4 04 Nov 2007 08:00 am
Do all the 5th gen. preludes come with vtec or dohc vtec? or sohc vtec? Ruben K Honda Technical 0 04 Nov 2007 07:50 am
Do all the 5th gen. preludes come with vtec or dohc vtec? or sohc vtec? Ruben K Honda Technical 0 04 Nov 2007 07:50 am
How Vtec Work and wAt Vtec Do and how do u know if when a vtec kick in? azn_gtc Honda Technical 1 26 Sep 2007 05:36 pm


All times are GMT -5. The time now is 05:25 pm.


Attribution:
Honda News | Autoblog
Powered by Yahoo Answers




Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
HondaCarForum.com is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse HondaCarForum.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.