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

Only 5lbs of boost!!?!?!

Thread Tools
 
Search this Thread
 
Old 04-17-06, 02:21 AM
  #1  
Full Member

Thread Starter
iTrader: (2)
 
dasalnt's Avatar
 
Join Date: Oct 2001
Location: orange county, ca
Posts: 79
Likes: 0
Received 0 Likes on 0 Posts
Only 5lbs of boost!!?!?!

I'm only getting 5lbs of boost in 1st and 2nd gear but in 3rd im able to get to around 9-10. I've read a bunch of posts but i'm still trying to figure out whats going on. I'm running sequential with intake, downpipe, midpipe and exhaust. I checked and i have both of my pills in the lines. Anyone have any ideas? If i cant figure it out i might just end up going non-sequential, thanks for any help!
Old 04-17-06, 02:45 AM
  #2  
Rx7 Wagon

iTrader: (16)
 
Narfle's Avatar
 
Join Date: Nov 2002
Location: California
Posts: 6,988
Received 875 Likes on 548 Posts
bad check valve?
Old 04-17-06, 04:11 PM
  #3  
Rotary Enthusiast

iTrader: (4)
 
DriftDreamzSS's Avatar
 
Join Date: Apr 2006
Location: Ventura
Posts: 1,236
Likes: 0
Received 3 Likes on 3 Posts
I had a similiar problem and it was the check valve on the line that goes between the y pipe and the pressure chamber on top.
Old 04-17-06, 08:28 PM
  #4  
Full Member

Thread Starter
iTrader: (2)
 
dasalnt's Avatar
 
Join Date: Oct 2001
Location: orange county, ca
Posts: 79
Likes: 0
Received 0 Likes on 0 Posts
thanks guys, i guess i'll have to check the check valves. Time to search the forums to see how thats done =]. If anyone else has any input feel free to chime in or if anyone is in the socal area and wants to help out a new FD owner let me know! Thanks!
Old 04-17-06, 09:34 PM
  #5  
Full Member

 
MontegoRx's Avatar
 
Join Date: Oct 2005
Location: HdG Maryland
Posts: 218
Likes: 0
Received 0 Likes on 0 Posts
As most will tell you on here... running downpipe, midpipe, and "exhaust" which I assume means cat back will make too much boost. I haven't ran this setup at all (with or withotut an ECU). I assume that if you opened up the entire exhaust, yuo should be running more than the normal 10-8-10 pattern, so you might have a problem with the lines controlling it.

I'm not sure on that, but I'd say if you opened up the whole exhaust system and are still running stock boost that something's wrong. Along the same lines... if you're running stock boost, your engine should be safe, but if you get it running "correctly" with the full exhaust, you're going to need some supporting mods to make sure the engine keeps running like that.
Old 04-18-06, 09:29 AM
  #6  
Full Member

Thread Starter
iTrader: (2)
 
dasalnt's Avatar
 
Join Date: Oct 2001
Location: orange county, ca
Posts: 79
Likes: 0
Received 0 Likes on 0 Posts
hey montego, you're right, i forgot to mention that i do have an upgraded ecu to handle the modifications.

I ended up buying 4 new check valves from dale since they were so cheap and i'll probably install them this weekend, hopefully its the problem.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Shainiac
Single Turbo RX-7's
12
07-17-19 02:20 PM
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
Bauer778
3rd Generation Specific (1993-2002)
10
11-04-15 04:42 PM
zxrazorxz
3rd Generation Specific (1993-2002)
2
09-14-15 07:21 PM
High_Carb_Diet
Power FC Forum
1
09-05-15 09:07 AM



Quick Reply: Only 5lbs of boost!!?!?!



All times are GMT -5. The time now is 01:34 PM.