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

Under WOT car Accelerates then Deaccererates

Thread Tools
 
Search this Thread
 
Old Oct 24, 2004 | 11:08 PM
  #1  
RX7WEEE's Avatar
Thread Starter
Need a 20b FD.
Tenured Member 15 Years
iTrader: (16)
 
Joined: Feb 2003
Posts: 1,946
Likes: 1
From: Bellingham Wa
Under WOT car Accelerates then Deaccererates

Its really wierd what happing when im under WOT my car will pull hard then, a split second later i feels like i let off the gas to 3/4 throttle then to full throttle it will do this VERY rapidly all the way through any gear, its really slowing my car down.

boost is a steady 11.5psi running rich, it just started doing this lately and i have no idea on what it could be

any idea would be a help.
Reply
Old Oct 24, 2004 | 11:21 PM
  #2  
InsaneGideon's Avatar
Still on 1st engine
Tenured Member 05 Years
 
Joined: Jun 2003
Posts: 1,176
Likes: 1
From: SoCal
Sounds like fueling. How do you know you're actually running rich? Wideband?
Reply
Old Oct 24, 2004 | 11:28 PM
  #3  
RX7WEEE's Avatar
Thread Starter
Need a 20b FD.
Tenured Member 15 Years
iTrader: (16)
 
Joined: Feb 2003
Posts: 1,946
Likes: 1
From: Bellingham Wa
umm, gray comes out under WOT, and i shoot flames like no other lol, i have the PIM volt up alot, im maxing out my injector dudty cycle (still stock injecotrs)
Reply
Old Oct 25, 2004 | 12:44 AM
  #4  
Marshall's Avatar
Rotary Enthusiast
Tenured Member 15 Years
 
Joined: Mar 2001
Posts: 1,023
Likes: 0
From: Edwards, CA
How much gas in the tank?
Reply
Old Oct 25, 2004 | 09:57 AM
  #5  
Klar's Avatar
VVThat's meVV
Tenured Member 10 Years
 
Joined: Oct 2003
Posts: 610
Likes: 0
From: Austin, TX
Fuel pump condition?
Reply
Old Oct 25, 2004 | 10:28 AM
  #6  
DamonB's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 9,617
Likes: 8
From: Dallas
Originally Posted by RX7WEEE
im maxing out my injector dudty cycle (still stock injecotrs)
ummmm?
Reply
Old Oct 25, 2004 | 05:13 PM
  #7  
RX7WEEE's Avatar
Thread Starter
Need a 20b FD.
Tenured Member 15 Years
iTrader: (16)
 
Joined: Feb 2003
Posts: 1,946
Likes: 1
From: Bellingham Wa
its not bad to max out your injectors :P there was a thread about it a while ago. the gas tank was full. i dont know about the fuel pump but i think it might be that.
Reply
Old Oct 25, 2004 | 07:57 PM
  #8  
Chadwick's Avatar
Mr Sparkles
Tenured Member 10 Years
iTrader: (12)
 
Joined: Jun 2001
Posts: 785
Likes: 1
From: Smyrna, TN, USA
Originally Posted by RX7WEEE
its not bad to max out your injectors :P there was a thread about it a while ago. the gas tank was full. i dont know about the fuel pump but i think it might be that.
?


Sounds like you are running a PFC, try changing the duty cycle (% number) on the wastegate under the boost setting. With a stock wastegate if you don't get the setting right it will cycle the wastegate to try and keep the boost as set.

Hope this helps
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
86glxNA
New Member RX-7 Technical
3
Aug 15, 2015 01:45 PM
Craze8
2nd Generation Specific (1986-1992)
11
Aug 14, 2015 06:11 PM
Wolf_
Single Turbo RX-7's
3
Aug 11, 2015 04:23 PM




All times are GMT -5. The time now is 11:20 AM.