Register - Members List - Calendar - Mark Forums Read -

Go Back   Just Commodores > Holden Commodore Related > General

General Anything not relating to one of the following Holden Commodore categories

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 15-04-2007, 03:26 PM
Pub24/7's Avatar
Donating Member
 

Ride: VN Calais Project - 88 VN Wagon daily
Join Date: Apr 2006
Location: Melbourne S.E.
Posts: 1,382
Pub24/7 Caprice
Default Working out Engine Capacity

Hey guys i Have changed to a 2.85lt h/c head on my 3.3lt. So i was thinking would my car no longer be a 3.3lt. I decided to try and work out the capacity myself but every result i get is way off
I was using the formula for a cylinder (v= pie x r squared then x by hieght) then x by 6
But i always comes out too large.
So Basically can anyone give me the math on how they calculate capacity of a motor?

Cheers Pub

Last edited by Pub24/7; 15-04-2007 at 03:42 PM.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Google Bookmark this Post!Yahoo Bookmark this Post!Bookmark to AskJeeves!Bookmark to Slashdot!Live Bookmark this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote

Sponsored Links
  #2  
Old 16-04-2007, 09:15 PM
MasterOfReality's Avatar  

Ride: VP HSV Enhanced Calais, 2006 Suzuki Grand Vitara
Join Date: Feb 2004
Location: Brisbane
Trade Rating: (0)
Posts: 319
MasterOfReality Calais
Default

Volume of cylinder = (pi*(diameter^2)/4)*stroke

Engine capacity = volume per cylinder * number of cylinders
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Google Bookmark this Post!Yahoo Bookmark this Post!Bookmark to AskJeeves!Bookmark to Slashdot!Live Bookmark this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
  #3  
Old 16-04-2007, 09:24 PM
AirStrike's Avatar
<---------Aint it true!
 

Ride: 91' VN SS & 94' VR BT1
Join Date: Jul 2003
Location: Melbourne
Trade Rating: (0)
Posts: 6,178
AirStrike Senator SignatureAirStrike Senator SignatureAirStrike Senator Signature
Default

If I am reading correctly, have you changed the head? If so you haven't changed the capacity of the engine at all.
__________________
function > form
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Google Bookmark this Post!Yahoo Bookmark this Post!Bookmark to AskJeeves!Bookmark to Slashdot!Live Bookmark this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
  #4  
Old 16-04-2007, 11:41 PM
Not_An_Abba_Fan's Avatar  

Ride: MY08 Outlander XLS
Join Date: Aug 2006
Location: Bunbury, WA
Trade Rating: (0)
Posts: 4,247
Not_An_Abba_Fan GrangeNot_An_Abba_Fan GrangeNot_An_Abba_Fan Grange
Default

It may have dropped down to about 3.2 because of the slightly smaller combustion chambers in the head. You would have to measure both heads to see if there actually was a difference though.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Google Bookmark this Post!Yahoo Bookmark this Post!Bookmark to AskJeeves!Bookmark to Slashdot!Live Bookmark this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
  #5  
Old 16-04-2007, 11:58 PM
 

Ride: vp v6 commodore executive
Join Date: Aug 2006
Location: south island newzealand
Trade Rating: (0)
Posts: 668
14secvp Berlina
Default

changing the bore and stroke is the only wat to increase capacity the combustion chamber size only effects compression
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Google Bookmark this Post!Yahoo Bookmark this Post!Bookmark to AskJeeves!Bookmark to Slashdot!Live Bookmark this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Reply

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
1992 VP Wagon on gas. (engine not working) pieno Cars For Sale 2 19-03-2007 06:33 PM
Engine Capacity... azkwazere The Pub 6 15-04-2006 10:44 AM
vz ss ute fuel capacity hsv_chick VZ Holden Commodore (2004 - 2006) 1 07-08-2005 10:26 PM
engine capacity ralph VB - VK Holden Commodore (1978 - 1985) 5 22-03-2005 09:26 PM
Holden to Expand Capacity In Global V6 Engine Plant Darren News/Updates 0 28-04-2004 09:20 AM


Xecuter 3 Mod Chip | Advertising | Free Online Games | Fast Loans | Remortgaging | Car Reviews


All times are GMT +10.5. The time now is 07:04 PM.



Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0