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

Turned up boost

Thread Tools
 
Search this Thread
 
Old 01-05-06, 10:41 AM
  #1  
Rotary Enthusiast

Thread Starter
 
PhatManBUD's Avatar
 
Join Date: Oct 2002
Location: S.Cali, OC!
Posts: 1,468
Likes: 0
Received 0 Likes on 0 Posts
Turned up boost

So yesterday i decided to up the boost a little more. I got it up to about 9 or 10 psi. And wow the car felt awesome! huge difference when i had it at 5 before or even 8. But this time i heard a loud pop =(


Im pretty sure my bov started leaking. Because i could hear air escape and make a loud whistle and the most i can boost is .45 bar before i hear the whistle when last night i was boosting .52 bar and it was perfectly okay. Im pretty sure its the bov because i was checking for any air leaks and the bov happens to spin around the flange really easily. And the bov sounds a little different, like i can hear air release right before the bov is supposed to open, and its a little quieter when i get off the gas.

So i ordered a new o-ring and c-clip for the bov flange. so hopefully that fixes my prob.

So now at 6 psi, im dead even with my brothers mr2. instead of beating him. amazing what a few psi difference can make.
Old 01-05-06, 10:51 AM
  #2  
Racecar - Formula 2000

 
DaveW's Avatar
 
Join Date: Sep 2002
Location: Bath, OH
Posts: 3,852
Received 278 Likes on 199 Posts
A "POP" usually means a blown boost coupler. Did you check them carefully (remove and inspect on all sides for hidden tears)?
Old 01-05-06, 10:57 AM
  #3  
Rotary Enthusiast

Thread Starter
 
PhatManBUD's Avatar
 
Join Date: Oct 2002
Location: S.Cali, OC!
Posts: 1,468
Likes: 0
Received 0 Likes on 0 Posts
ooo thats a good idea too. i will check that. i mean i shook them around and they all seemed tight. but i will need to see if there are any tears.
Old 01-05-06, 11:32 AM
  #4  
Senior Member

 
SPICcnmGT's Avatar
 
Join Date: May 2005
Location: Birmingham
Posts: 728
Likes: 0
Received 0 Likes on 0 Posts
Weird thing happened to me about 3 wks ago. I heard a pop and all of the whistling with no boost and everything, and when I got out to look, my turbo housing on the secondary turbo came off. That caused my y-pipe to come into so all of my boost from the primary was blowing out toward the rear of the engine bay. Basically the only thing keeping it in the engine bay was the intake piping to the air filter, and the vacuum stuff connected to the y-pipe.

All I could figure was something was wrong with the c-clamp that held it on, but looking at it I saw nothing. I did end up just going ahead and replacing the turbos. So it could be that but probably not.
Old 01-05-06, 11:49 AM
  #5  
I brake boost

 
FD Rey's Avatar
 
Join Date: Aug 2003
Location: Orlando
Posts: 2,128
Likes: 0
Received 0 Likes on 0 Posts
Sounds more like your intercooler piping popped off not your BOV.
Old 01-05-06, 12:03 PM
  #6  
Banned. I got OWNED!!!
 
sonix7's Avatar
 
Join Date: Jul 2004
Location: ft. collins, colorado
Posts: 1,766
Likes: 0
Received 1 Like on 1 Post
yep I bet coupler. check them all. close. there is probably a rip that does not open up until higher boost levels.
Old 01-05-06, 12:23 PM
  #7  
Rotary Enthusiast

Thread Starter
 
PhatManBUD's Avatar
 
Join Date: Oct 2002
Location: S.Cali, OC!
Posts: 1,468
Likes: 0
Received 0 Likes on 0 Posts
what a pain in the ***, couplers arent cheap either =\

well since im running (3) 90 degree ones, and 1 straight transition one.
Old 01-05-06, 02:57 PM
  #8  
semper Fi

 
recon fd's Avatar
 
Join Date: Jul 2005
Location: LA
Posts: 1,478
Likes: 0
Received 1 Like on 1 Post
Sorry to here your having a problem. Couplers are not cheap, but hopefuly its just that and not anything really serious.

goodluck,
-josh
Old 01-05-06, 04:05 PM
  #9  
I brake boost

 
FD Rey's Avatar
 
Join Date: Aug 2003
Location: Orlando
Posts: 2,128
Likes: 0
Received 0 Likes on 0 Posts
I bet it's one of the 90 degree ones that poped off. It doesn't necessarily mean it's broken. I would guess the clamps weren't tighten as tight as you thought. So just have to tighten it a bit more or use T-bolt clamps. Those things work best.
Old 01-05-06, 04:14 PM
  #10  
Rotary Enthusiast

Thread Starter
 
PhatManBUD's Avatar
 
Join Date: Oct 2002
Location: S.Cali, OC!
Posts: 1,468
Likes: 0
Received 0 Likes on 0 Posts
I am using mostly tbolt ones. Except on the turbo...i dont know why, i didnt have any t bolt ones small enough for it. But...

I really do think its the BOV. because i think we messed up the C-clamp transfering the bov from the FD flange to the universal flange. I just dont think its right that the bov would spin around freely. And at higher pressure i think the bov seperates from the flange creating a leak.
Old 01-05-06, 04:17 PM
  #11  
Junior Member

 
axela's Avatar
 
Join Date: Jan 2006
Location: Romania
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
hello,i just both my first rx7 and i need guidance
Old 01-05-06, 04:17 PM
  #12  
Junior Member

 
axela's Avatar
 
Join Date: Jan 2006
Location: Romania
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
can anyone help me????i have an work shop and i need ideeas about how my whould look like
Old 01-05-06, 04:19 PM
  #13  
Junior Member

 
axela's Avatar
 
Join Date: Jan 2006
Location: Romania
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
my yahoo messender id is: dreamertruth
Old 01-05-06, 04:19 PM
  #14  
Rotary Enthusiast

Thread Starter
 
PhatManBUD's Avatar
 
Join Date: Oct 2002
Location: S.Cali, OC!
Posts: 1,468
Likes: 0
Received 0 Likes on 0 Posts
lol, trying to hijack or what man. click on new thread to start a new thread that everyone can see.

Start buy reading the FAQs at the top of the pages. They will have links leading to alot of important things to know.
Old 01-05-06, 04:21 PM
  #15  
I brake boost

 
FD Rey's Avatar
 
Join Date: Aug 2003
Location: Orlando
Posts: 2,128
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by axela
hello,i just both my first rx7 and i need guidance
How about starting your own thread. Or better yet, do a lil reading. There is a FAQ section on here that has TONS of useful information. Good luck.
Old 01-05-06, 04:23 PM
  #16  
I brake boost

 
FD Rey's Avatar
 
Join Date: Aug 2003
Location: Orlando
Posts: 2,128
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by PhatManBUD
lol, trying to hijack or what man. click on new thread to start a new thread that everyone can see.

Start buy reading the FAQs at the top of the pages. They will have links leading to alot of important things to know.
hahaha, great minds think a like.
Old 01-05-06, 06:43 PM
  #17  
Original Gangster/Rotary!


iTrader: (213)
 
GoodfellaFD3S's Avatar
 
Join Date: Mar 2001
Location: FL-->NJ/NYC again!
Posts: 30,529
Received 539 Likes on 326 Posts
The guy is from Romania, give him a break, lol.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
cristoDathird
Introduce yourself
28
05-30-19 08:47 PM
C. Ludwig
Single Turbo RX-7's
49
01-30-19 06:31 AM
Jeff20B
1st Generation Specific (1979-1985)
4
06-26-16 10:21 AM



Quick Reply: Turned up boost



All times are GMT -5. The time now is 04:26 AM.