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

do you need the stock boost solenoid if you have a manual boost controller

Thread Tools
 
Search this Thread
 
Old Jul 19, 2002 | 04:51 PM
  #1  
viperkiller7's Avatar
Thread Starter
1.3 liters of whoop ass
Tenured Member 20 Years
iTrader: (11)
 
Joined: Mar 2002
Posts: 1,174
Likes: 0
From: Reading pa
do you need the stock boost solenoid if you have a manual boost controller

i am piutting a manual boost controller on my 90- t2. do i use the factory boost solenoid or is it deleted. That is the only solenoid left in my car.
Reply
Old Jul 19, 2002 | 07:34 PM
  #2  
Scott 89t2's Avatar
SOLD THE RX-7!
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 7,451
Likes: 0
From: Vancouver, BC, Canada
no you just pull the van lines off the turbo and bypass it. mine's still there pluged into the harness though. just doesn't do anything. not sure if it'll turn on the check engine light or not with it unpluged
Reply
Old Jul 19, 2002 | 08:56 PM
  #3  
Wankel7's Avatar
Haven't we ALL heard this
Tenured Member 20 Years
 
Joined: Mar 2001
Posts: 3,948
Likes: 1
From: Indiana
I unplugged mine and it made the check engine light come on.

I then left it plugged into the harness with no vacuum lines on it. However, the computer still knew it wasn't controling boost.

When I pulled the codes it came up. However, it did NOT make the check engine light come on. This is in my '91 TII.

James
Reply
Old Jul 19, 2002 | 09:05 PM
  #4  
Scott 89t2's Avatar
SOLD THE RX-7!
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 7,451
Likes: 0
From: Vancouver, BC, Canada
hmm my vac lines are unpluged with no code.
Reply
Old Jul 19, 2002 | 09:09 PM
  #5  
Wankel7's Avatar
Haven't we ALL heard this
Tenured Member 20 Years
 
Joined: Mar 2001
Posts: 3,948
Likes: 1
From: Indiana
Did you check it even though there was no check engine light visable with the ign. on?

James
Reply
Old Aug 23, 2002 | 04:15 PM
  #6  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
are you talking about a mnual boost controller or electronic ?
Reply
Old Aug 23, 2002 | 04:31 PM
  #7  
DaleClark's Avatar
RX-7 Bad Ass
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (56)
 
Joined: Jan 2002
Posts: 15,622
Likes: 2,725
From: Pensacola, FL
Few things here -

The stock boost control solenoid is good in one application - on a stock car. When you start modifying the car, it will quickly run away with the boost, giving you some dangerous overboost conditions.

The ECU doesn't care if it's plugged in or not - it will store a code, but will not flag a check engine light, and the car will not run odd or go into any failsafe mode.

Even if you don't have a boost controller, if you've opened up your intake/exhaust, disable that sucker.

Dale
Reply
Old Aug 23, 2002 | 04:36 PM
  #8  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
should you just tee the vacum lines going in or plug them?
Reply
Old Aug 23, 2002 | 04:41 PM
  #9  
DaleClark's Avatar
RX-7 Bad Ass
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (56)
 
Joined: Jan 2002
Posts: 15,622
Likes: 2,725
From: Pensacola, FL
One of the lines goes to the turbo inlet duct, and the other goes to the metal hardline on the turbo.

Easiest way is to pull the two lines from the boost controller and plug them. Best way is to plug the hole in the inlet duct and the one going to the wastegate actuator.

If you splice the two lines at the boost controller together, you're gonna have some serious boost.

Dale
Reply
Old Aug 23, 2002 | 05:30 PM
  #10  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
by plugging them will i see less or more boost or the same ?
Reply
Old Aug 24, 2002 | 10:06 AM
  #11  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
?
Reply
Old Aug 24, 2002 | 01:37 PM
  #12  
Scott 89t2's Avatar
SOLD THE RX-7!
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 7,451
Likes: 0
From: Vancouver, BC, Canada
your boost will drop from 8psi to 5psi when you disabble it. but then it'll most likey creep higher.

the first thing I did was disabble mine before my exhaast went on. so I was getting 5psi slowly creeping to 9-10. adding a manual boost controler set to 9-10 made the car so much better

but don't use the stock one with a modded car. exspecially when using a FCD. ECU controls the stock boost controller. FCD makes the ECU see less then 8psi or so. so I bet the controller never fully cuts out causing more creep.
Reply
Old Aug 26, 2002 | 10:20 AM
  #13  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
what would happen if you disable without a boost controller?
Reply
Old Aug 26, 2002 | 11:58 AM
  #14  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
?
Reply
Old Aug 28, 2002 | 04:40 PM
  #15  
vmb
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 790
Likes: 0
From: orlando ,fl
please answer as what would happen if you disable without a boost controller
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM




All times are GMT -5. The time now is 05:48 PM.