Notices
Scion tC 1G Forced Induction Turbo and supercharger applications...

What are your afr's at diff psi?

Old Jul 31, 2008 | 07:46 PM
  #1  
08superwhite's Avatar
Thread Starter
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Feb 2008
Posts: 271
From: Barnesville, PA
Default What are your afr's at diff psi?

I'm curious to see what everyone has there tune set at. I want to know what afr you are running at what psi, and part throttle or wot. I have mine ramping from leaner to richer as I set into more boost. Like say 13.5 from 0-3psi, 13.0 from 3-5psi, 12.5 from 5-8psi and 11.8 from 8-10psi. Is this how everyone else has theirs set up or do you just have one set afr from the time you hit boost?
Old Jul 31, 2008 | 08:35 PM
  #2  
Mr_Meaty's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
Default

so do you mean you are at 13.5 at idle and in vac? or are you at 14.7 at idle and in vac and then it goes to 13.5 as soon as you hit boost?
other then that, your setup sounds good.
Old Jul 31, 2008 | 08:41 PM
  #3  
enjoithis's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Oct 2007
Posts: 1,027
From: Long Island, NY
Default

about the same.. maybe even some 14-15 @ 0-3psi lower in the RPM range.

idle / cruise = 14.7
Old Jul 31, 2008 | 08:59 PM
  #4  
Ace83's Avatar
Senior Member
10 Year Member
5 Year Member
Ronin Scion
SL Member
Premium Member
iTrader: (6)
 
Joined: Aug 2006
Posts: 11,117
From: TX
Default

that on the lean side but acceptable.. im working on 12.5 0-3 psi, 11.8 4-6psi, 11.5 6-8 psi and 11.3 9-11psi
Old Jul 31, 2008 | 09:30 PM
  #5  
Mr_Meaty's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
Default

Yeah...I have to adjust mine...they were perfect, but not it's dippin into the 10s at WOT
Old Jul 31, 2008 | 09:39 PM
  #6  
Ace83's Avatar
Senior Member
10 Year Member
5 Year Member
Ronin Scion
SL Member
Premium Member
iTrader: (6)
 
Joined: Aug 2006
Posts: 11,117
From: TX
Default

^^ you talkin about that dip to 10s and goes back to normal? I have those too still learning how to adjust those, maybe it more of the injector response thing
Old Jul 31, 2008 | 10:04 PM
  #7  
Mr_Meaty's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
Default

No...as I boost higher, it start s getting richer, and then goes to 10s...used to only go to 11s...gotta pull fuel...
Old Jul 31, 2008 | 10:20 PM
  #8  
Ace83's Avatar
Senior Member
10 Year Member
5 Year Member
Ronin Scion
SL Member
Premium Member
iTrader: (6)
 
Joined: Aug 2006
Posts: 11,117
From: TX
Default

oh sometimes afrs changes in response to weather condition, I get different afrs at night, it might be that
Old Jul 31, 2008 | 10:48 PM
  #9  
Mr_Meaty's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 9,061
From: VEGAS BABY!
Default

not this bad...from 11.5 to deep 10, dumping like crazy, and it's just as hot now as it was when it started a week or so ago. It is less humid, however, thaty may be it.
In any event, adjustments are neccessary.
Old Jul 31, 2008 | 10:50 PM
  #10  
Ace83's Avatar
Senior Member
10 Year Member
5 Year Member
Ronin Scion
SL Member
Premium Member
iTrader: (6)
 
Joined: Aug 2006
Posts: 11,117
From: TX
Default

hmm, ecu could be relearning? try resetting te ecu see how it helps
Old Aug 1, 2008 | 07:13 PM
  #11  
thendawg's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
iTrader: (2)
 
Joined: May 2008
Posts: 2,720
Default

i run 14.4-14.8 from vac-2psi than about 13.5 down to 12.6 from 2psi-6psi running ti a tad lean at vac-1-2psi seems to yield a better takeoff
Old Aug 2, 2008 | 02:51 AM
  #12  
Ace83's Avatar
Senior Member
10 Year Member
5 Year Member
Ronin Scion
SL Member
Premium Member
iTrader: (6)
 
Joined: Aug 2006
Posts: 11,117
From: TX
Default

^^ afrs are on the lean side, take easy on it and make sure you have your ignition is tuned conservatively or your motor might not last that long
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sgtfluffy16
Regional - Northeast
3
Jul 28, 2021 10:32 PM
Sgtfluffy16
Off-topic Cafe
2
Sep 30, 2015 01:42 PM
vi3tb0i09
PPC: Engine / Drivetrain
2
Sep 23, 2015 08:32 PM
JonathonK
Scion FR-S Owner's Lounge
0
Sep 22, 2015 07:27 PM
edwinisdumb15
Regional - Pacific South
0
Aug 4, 2015 02:43 AM


Thread Tools
Search this Thread

All times are GMT. The time now is 11:55 PM.