3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

car cuts at full boost/full load/wot

Thread Tools
 
Search this Thread
 
Old Apr 4, 2011 | 01:49 PM
  #1  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
car cuts at full boost/full load/wot

any recommendations......single turbo...15lbs boost....pfc with commander....extreme fuel system......1600cc secondaries.... and when im under full load/wot or clopse to it it rips fine and smooth up the rpm but between 3-5k 3rd gear and 4th gear when it is hitting max boost it cuts.....like dead stop cut...instantly..???
Reply
Old Apr 4, 2011 | 01:52 PM
  #2  
arghx's Avatar
rotorhead
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2004
Posts: 16,205
Likes: 461
From: cold
go into settings --> boost on your Commander and tell us what you see there.
Reply
Old Apr 4, 2011 | 04:17 PM
  #3  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
soon as im off work i will post it....
Reply
Old Apr 4, 2011 | 07:33 PM
  #4  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
1. pr 0.80 kg/cm2 56%
sc 0.70 kg/cm2 64%

2. pr 0.90 kg/cm2 62%
sc 0.80 kg/cm2 70%
Reply
Old Apr 5, 2011 | 09:18 AM
  #5  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
anybody anybody???
Reply
Old Apr 5, 2011 | 09:46 AM
  #6  
Xtravagant's Avatar
Senior Member
Tenured Member 15 Years
iTrader: (2)
 
Joined: Jun 2008
Posts: 271
Likes: 0
From: Destin, FL
FL

DUDE!!! mine is doing the same thing!!! lol but mine is a 1j swap...Right at the top of boost everything, but power fc and i believe headlights shut off for a split second and comes back on?!?!?!?!
Reply
Old Apr 5, 2011 | 09:50 AM
  #7  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
ok now that is weird.....im not sure what mine is but its just power cut, fuel cut, ignition cut, something....and idk if its some setting in the fc that i am unsure of
Reply
Old Apr 5, 2011 | 11:07 AM
  #8  
zeroG's Avatar
Rotary Enthusiast
Tenured Member 10 Years
iTrader: (28)
 
Joined: Aug 2008
Posts: 1,149
Likes: 0
From: Miami, FL
Originally Posted by axnjaksn
1. pr 0.80 kg/cm2 56%
sc 0.70 kg/cm2 64%

2. pr 0.90 kg/cm2 62%
sc 0.80 kg/cm2 70%

You're getting fuel cut because your boost settings are too low for 15lbs.

1-kg/cm2 = 14.**psi, you have it set at .80-.70

You're telling the PFC you want to boost at about 11.5 psi on the primary, and about 10 psi on the secondary.

The PFC cuts fuel when you over boost at about .25-kg/cm2 over your set boost level.

So you need to raise your PFC boost levels to about 1-kg/cm2, maybe slightly higher. And set both the primary and secondary to the same values.
Reply
Old Apr 5, 2011 | 11:07 AM
  #9  
DriftDreamzSS's Avatar
Rotary Enthusiast
Tenured Member 10 Years
iTrader: (4)
 
Joined: Apr 2006
Posts: 1,236
Likes: 5
From: Ventura
Power fc cuts fuel if you boost .25 over the value you have set in the boost settings. So if you have Option 1 selected with the .80 it will trigger fuel cut at 1.05, which is right around the 15psi you are running. Try lowering the boost, use higher numbers in option 1, or try number 2 with the .90 value.
Reply
Old Apr 5, 2011 | 11:25 AM
  #10  
Xtravagant's Avatar
Senior Member
Tenured Member 15 Years
iTrader: (2)
 
Joined: Jun 2008
Posts: 271
Likes: 0
From: Destin, FL
Steve Kan tuned mine about 2 months ago... and there hasnt been any problems, until like 2/3 weeks ago, it started doing this cut of junk!
Reply
Old Apr 5, 2011 | 11:54 AM
  #11  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
right on thanks zerog and driftdreams....try that as soon as i get home
Reply
Old Apr 5, 2011 | 03:37 PM
  #12  
axnjaksn's Avatar
Thread Starter
the one and only
Tenured Member 05 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 261
Likes: 0
From: socal
one more wuiky....what about the percentage values to the right??? in settings-boost
Reply
Old Apr 5, 2011 | 07:50 PM
  #13  
r074r'/ |\|00B
Tenured Member 15 Years
iTrader: (14)
 
Joined: Jan 2002
Posts: 922
Likes: 0
From: KC, KS
Originally Posted by axnjaksn
one more wuiky....what about the percentage values to the right??? in settings-boost
It adjust the duty cycle of the stock wastegate solenoids. Don't worry about them in your case.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Monsterbox
Single Turbo RX-7's
22
Jul 29, 2022 10:48 PM
astrum
2nd Generation Specific (1986-1992)
24
Nov 15, 2017 08:44 AM
dkwasherexd
Single Turbo RX-7's
21
May 27, 2017 04:51 AM
Turblown
Single Turbo RX-7's
0
Aug 14, 2015 04:48 PM




All times are GMT -5. The time now is 06:43 PM.