3rd Generation Specific Talk about 3rd gen RX-7's here.

No Boost Pressure, No Power

Thread Tools
 
Search this Thread
 
Old 12-11-2003, 10:05 AM
  #1  
Senior Member
Thread Starter
 
sweet93's Avatar
 
Join Date: Dec 2002
Location: Winston Salem, NC
Posts: 104
Default

I had my apexi race wastegate set to allow only about 5psi boost while I was breaking my motor in. I adjusted it back up the other day and did a test drive. I was easy in 1st and sencond I pushed a little harder. The psi pegged at 25 almost instantly. When I let off the gas, I heard a pow, maybe the wastegate blowing off. After stopping at the next gas station to adjust the pressure with my dual stage boost controler, I couldn't get any boost. I found a vacc cap blown off the intake penum beside where my boost gauge line is. After reinstalling it, I still have no pressure. I can't find any lines loose, off, or anything. any suggestions. By the way, I'm running an Apexi rx6 single setup with racing wastegate, and stock intercooler for now. Can anybody point me in the direction of what might be wrong. The setup only has about 600-800miles on it.



Thanks
sweet93 is offline  
Old 12-11-2003, 10:11 AM
  #2  
Senior Member
 
Midnightdriver's Avatar
 
Join Date: Aug 2002
Location: Reno,NV
Posts: 1,081
Default

did you check your ic piping, sometimes that can blow off too.
Midnightdriver is offline  
Old 12-11-2003, 10:29 AM
  #3  
Senior Member
 
TyresmokinRx7's Avatar
 
Join Date: Apr 2003
Location: Canberra Australia
Posts: 875
Default

I had the same problem, until I noticed that I was blowing the wastegate off.
TyresmokinRx7 is offline  
Old 12-11-2003, 12:23 PM
  #4  
Senior Member
Thread Starter
 
sweet93's Avatar
 
Join Date: Dec 2002
Location: Winston Salem, NC
Posts: 104
Default

I've tried the ic piping, connections around the wastegate, vacc lines around the turbo. The only vacc lines I haven't checked is under the intake penum. Is it possible one of those could have blown off?
sweet93 is offline  
Old 12-11-2003, 01:40 PM
  #5  
Member
 
2gslse's Avatar
 
Join Date: Jun 2003
Location: front royal va
Posts: 57
Default

I would look at the intercooler you may have blown the plastic tanks off of it or a really big hole in it
2gslse is offline  
Old 12-11-2003, 02:23 PM
  #6  
Senior Member
 
twinturborx7pete's Avatar
 
Join Date: Dec 2001
Location: Panama City Beach, Florida
Posts: 993
Default

yah take that stock i/c out.. check all the hoses, sometimes they will blow a hairline split in them that you can't see.. try and crush the pipes.. i've had the same problem before.
twinturborx7pete is offline  
Old 12-12-2003, 11:08 AM
  #7  
DUB
Senior Member
 
DUB's Avatar
 
Join Date: Jun 2003
Posts: 568
Default

wow 25psi instantly...thru the stock IC.
DUB is offline  
Old 12-13-2003, 09:17 AM
  #8  
Senior Member
Thread Starter
 
sweet93's Avatar
 
Join Date: Dec 2002
Location: Winston Salem, NC
Posts: 104
Default

I went through the system again and found part of the intercooler piping blown apart. The pipe was in a bind, so it looked like it was still connected.

I fixed the problem and re-adjusted the boost controler before I blew my motor.



Thanks for the help!
sweet93 is offline  
Old 12-14-2003, 06:54 AM
  #9  
Senior Member
 
toddp31's Avatar
 
Join Date: Dec 2002
Location: Misawa Japan
Posts: 826
Default

If that pipe wouldn't of blow of you might of blow your motor......thank mazda for those shitty plastic intercooler pipes
toddp31 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rx7fcfc
2nd Generation Specific
1
05-31-2010 11:02 PM
rx7fcfc
2nd Generation Specific
3
05-28-2010 09:53 AM
gearbanger
2nd Generation Specific
2
04-06-2003 08:53 PM
ikrazygluebrokenapexseals
2nd Generation Specific
19
09-16-2002 10:50 AM
redhat778
3rd Generation Specific
3
07-07-2002 11:32 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: No Boost Pressure, No Power



All times are GMT -5. The time now is 07:00 PM.