PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

what is the target a/f on a supercharged car

Thread Tools
 
Search this Thread
 
Old 04-21-2009 | 06:50 PM
  #1  
transdam's Avatar
Thread Starter
Staging Lane
iTrader: (2)
 
Joined: May 2007
Posts: 96
Likes: 2
Default what is the target a/f on a supercharged car

stock engine, epp blower cam and 8 psi p1 procharger my a/f is in the 12.3-12.6 is that too lean
Old 04-21-2009 | 06:52 PM
  #2  
Slowhawk's Avatar
LS1Tech Sponsor
iTrader: (12)
 
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Default

I like 11.2-1 to 11.6-1 depending on boost level ect.
Old 04-21-2009 | 06:54 PM
  #3  
Old Geezer's Avatar
TECH Senior Member

iTrader: (3)
 
Joined: Jun 2004
Posts: 5,640
Likes: 69
From: GA, USA
Exclamation Would be..

Originally Posted by transdam
stock engine, epp blower cam and 8 psi p1 procharger my a/f is in the 12.3-12.6 is that too lean
in my opinion. That is a ?? area.
Given it's a stock engine, I'd be looking at something in mid 11's.
Keep an eye on the plugs,,,
Start fat, and sneak up on it!
Old 04-21-2009 | 07:23 PM
  #4  
JonCR96Z's Avatar
TECH Junkie
iTrader: (33)
 
Joined: Jan 2003
Posts: 3,005
Likes: 18
From: Asheboro, NC
Default

Always a good idea to start safe and read the plugs. Try asking in the Forced Induction section, someone may have something similar.
Old 04-21-2009 | 07:25 PM
  #5  
98Camarod's Avatar
11 Second Club

iTrader: (43)
 
Joined: Aug 2006
Posts: 5,364
Likes: 2
From: Summerville, SC
Default

I have mine at 11.5 with the plugs gapped at .028.
Old 04-21-2009 | 08:13 PM
  #6  
Doc's Avatar
Doc
FormerVendor
iTrader: (9)
 
Joined: May 2003
Posts: 1,573
Likes: 0
From: Jacksonville, Fl
Default

What kind of WBO2 are you using? Placement in the exhaust? Is it calibrated?
Old 04-21-2009 | 10:59 PM
  #7  
sunsetorang01TA's Avatar
On The Tree

 
Joined: Jun 2006
Posts: 129
Likes: 0
From: Macungie PA
Default

typically forced induction setups should be between 10.5-12.0:1. That is what i've always been taught.
Old 04-22-2009 | 08:01 AM
  #8  
transdam's Avatar
Thread Starter
Staging Lane
iTrader: (2)
 
Joined: May 2007
Posts: 96
Likes: 2
Default

Originally Posted by Doc
What kind of WBO2 are you using? Placement in the exhaust? Is it calibrated?
aem wideband 1 year old 5,000 miles on the sensors
1 foot from the header collector
not calibrated
how do you calibrate it ?




All times are GMT -5. The time now is 12:58 AM.