2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

pressure leak? please help

Thread Tools
 
Search this Thread
 
Old 12-06-08, 12:32 AM
  #1  
pow sputter sputter
Thread Starter
 
t34418l3_1's Avatar
 
Join Date: Oct 2007
Location: Albuquerque, NM
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
NM pressure leak? please help

so i got done installing my new bov, and fmic, took the car out for a test ride and notice i wasnt making as much boost as i used to.
now i have a stock turbo with no boost controller,stock computer, pretty much everything stock, is it possible the turbo just cant push as much air as the fmic needs?
or have i done something completely wrong?
anything will help. thanks
Old 12-06-08, 01:36 AM
  #2  
Just Cruisin'

iTrader: (1)
 
deletedcold's Avatar
 
Join Date: Oct 2005
Location: Raleigh NC
Posts: 119
Received 1 Like on 1 Post
Just a guess but maybe a leak? since its newly installed.
Old 12-06-08, 10:11 AM
  #3  
pow sputter sputter
Thread Starter
 
t34418l3_1's Avatar
 
Join Date: Oct 2007
Location: Albuquerque, NM
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
i did check my vaccuum lines, and also the connections for the fmic, maybe i just missed something
Old 12-06-08, 10:15 AM
  #4  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes on 91 Posts
An intercooler will drop a PSI or so. How much difference are we talking and what is your setup?

A FMIC is a lot more volume to fill up, and the stock turbo is small. Quick stabs to the throttle may not produce as much boost as quickly, especially if the FMIC is huge.

Try a longish 3rd gear pull so you are in boost for several seconds.
Old 12-06-08, 10:54 AM
  #5  
pow sputter sputter
Thread Starter
 
t34418l3_1's Avatar
 
Join Date: Oct 2007
Location: Albuquerque, NM
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
the intercooler is much bigger.
the piping is 2.5" and the intercooler is 27x7x3
the car just doesnt pull like it used to.
still making boost, but not nearly as much as before.
the stock boost gauge used to go up about halfway each pull, now it barely hits above zero.
Old 12-06-08, 11:30 AM
  #6  
well rested,buffet o food

 
dawicka2's Avatar
 
Join Date: Dec 2006
Location: NY
Posts: 1,605
Likes: 0
Received 1 Like on 1 Post
^^^^Yeah you definately have a leak then. Re tighten the **** out of all t-bolt clamps. Put a straight pipe in where your new bov is to rule that out too. It is probably something simple.

john ny
Old 12-06-08, 02:53 PM
  #7  
pow sputter sputter
Thread Starter
 
t34418l3_1's Avatar
 
Join Date: Oct 2007
Location: Albuquerque, NM
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
as for the lower psi with quick stabs at the throttle, bigger turbo?
Old 12-06-08, 07:02 PM
  #8  
Just Cruisin'

iTrader: (1)
 
deletedcold's Avatar
 
Join Date: Oct 2005
Location: Raleigh NC
Posts: 119
Received 1 Like on 1 Post
bigger turbo is always a good way to go...
Old 12-07-08, 07:49 PM
  #9  
pow sputter sputter
Thread Starter
 
t34418l3_1's Avatar
 
Join Date: Oct 2007
Location: Albuquerque, NM
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
tightened everything. still no boost. new turbo is on the horizon
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
stickmantijuana
3rd Generation Specific (1993-2002)
13
01-09-18 11:19 AM
connerfd3s
New Member RX-7 Technical
11
09-19-15 05:58 PM
t-von
3rd Generation Specific (1993-2002)
9
09-10-15 01:56 PM
ZaqAtaq
New Member RX-7 Technical
2
09-05-15 08:57 PM



Quick Reply: pressure leak? please help



All times are GMT -5. The time now is 09:45 AM.