Tech / Misc Tech topics that don't seem to go elsewhere.
Sponsored by:
Sponsored by:

General A/F ratio for B16a?

Thread Tools
 
Search this Thread
 
Old Oct 27, 2004 | 07:35 PM
  #1  
tianporn's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2004
Posts: 701
Likes: 0
From: Auckland, New Zealand
Default General A/F ratio for B16a?

Hi i heard that generally, B16a's run lean before at VTEC and rich in VTEC. Is this correct? Im talking about stock engine.

Cheers
Reply
Old Oct 28, 2004 | 02:07 AM
  #2  
tianporn's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2004
Posts: 701
Likes: 0
From: Auckland, New Zealand
Default Re: General A/F ratio for B16a? (tianporn)

Bump
Reply
Old Oct 29, 2004 | 12:42 PM
  #3  
tianporn's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2004
Posts: 701
Likes: 0
From: Auckland, New Zealand
Default Re: General A/F ratio for B16a? (tianporn)

BUMP
Reply
Old Oct 29, 2004 | 12:55 PM
  #4  
Kamin's Avatar
Honda-Tech Member
 
Joined: Sep 2001
Posts: 12,176
Likes: 2
From: Tucson, AZ
Default Re: General A/F ratio for B16a? (tianporn)

they dont run "lean" but do run a leaner AF than when in vtec.
Reply
Old Oct 29, 2004 | 08:55 PM
  #5  
tianporn's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2004
Posts: 701
Likes: 0
From: Auckland, New Zealand
Default Re: General A/F ratio for B16a? (Kamin)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kamin &raquo;</TD></TR><TR><TD CLASS="quote">they dont run "lean" but do run a leaner AF than when in vtec. </TD></TR></TABLE>

But i hear most people trim some fuel out with their VAFC's for the low cam and add fuel for their high cam... which sorta contradicts your statement???

Would you net some gains if you trim a bit of fuel in VTEC?
Reply
Old Oct 30, 2004 | 05:10 PM
  #6  
tianporn's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Mar 2004
Posts: 701
Likes: 0
From: Auckland, New Zealand
Default Re: General A/F ratio for B16a? (tianporn)

BUmp
Reply
Old Oct 30, 2004 | 06:05 PM
  #7  
mmuller's Avatar
Mad Scientist
 
Joined: Nov 2002
Posts: 5,827
Likes: 1
From: tallafizzy, FL state
Default Re: General A/F ratio for B16a? (tianporn)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tianporn &raquo;</TD></TR><TR><TD CLASS="quote">

But i hear most people trim some fuel out with their VAFC's for the low cam and add fuel for their high cam... which sorta contradicts your statement???

Would you net some gains if you trim a bit of fuel in VTEC?</TD></TR></TABLE>

Kamin is saying that the engine runs more of leaner tune in the small cam and richer in the big lobes.
NA motors usually like 13-13.5 af
boosted usually like 12's
Reply
Old Nov 1, 2004 | 10:06 AM
  #8  
n1div's Avatar
Honda-Tech Member
 
Joined: Jul 2004
Posts: 592
Likes: 0
From: Chicago, IL, USA
Default

Skunk2 and Mugen variant tend to run way rich in Vtec range while custom tuned chips tend to pull some fuel in the vtec range.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kbsoldier
All Motor / Naturally Aspirated
70
Jul 5, 2007 04:11 AM
O16581724 5 2 5
Honda Civic / Del Sol (1992 - 2000)
9
May 22, 2006 07:41 PM
ExclusiveCRX
Honda CRX / EF Civic (1988 - 1991)
5
Jul 31, 2005 04:28 PM
kungura
Honda S2000
7
Jul 10, 2005 06:23 AM
rpm95civic
All Motor / Naturally Aspirated
9
Nov 15, 2004 06:16 AM




All times are GMT -8. The time now is 06:45 PM.