boost controller

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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

so what you are saying matt is i can take the stock boost controller totally
out of the loop? which one is it on the fender well, cause i have an
aftermarket one and would like to use that one.. when i remove that hose,
its not gonna screw with the computer, is it? i know i cant go above stock
levels without a fuel computer, but to keep it rock solid at 8.5 all the
time, this is possable?

mike

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Matt Scicchitano

boost controller

Post by Matt Scicchitano »

--- In BC-BFLegacyWorks@egroups.com, subaruracer755@c... wrote:
> so what you are saying matt is i can take the stock boost
controller totally
> out of the loop? which one is it on the fender well, cause i have
an
> aftermarket one and would like to use that one.. when i remove
that hose,
> its not gonna screw with the computer, is it? i know i cant go
above stock
> levels without a fuel computer, but to keep it rock solid at 8.5
all the
> time, this is possable?
>
> mike

Yes, you can. You can refer to the write up about the Hallman on
Dave's Turbo-Centric page( in the links) to know exactly what to do,
but basically you just replace the factory boost solenoid with your
controller, you can probably even use the same lines if you want,
just take the solenoid out and put the controller in. Leave the boost
solenoid's electrical connection plugged in however.

>From what I was told, the ECU knows how much fuel to add because of
different things such as the Mass Airflow Meter, O2 sensor, TPS,
etc., but it doesn't base any maps on what the boost solenoid or map
sensor says. In other words, the boost control solenoid is simply
there to open and close the wastegate, not provide the ECU with
information. Again, this was told to me by a Subaru Master Tech( take
it for what it's worth), who also had a Legacy Turbo with a few mods
done.

BTW, There are guys above the stock boost level without a fuel
computer, me included, you just can't overdue it. It's been pretty
much established that as long as you have an intercooler, anything
under the boost cut( around 13psi) is within the limits on a US spec
Legacy Turbo.

-Matt


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sean john

Boost controller

Post by sean john »

Where can I get one of the cheaper boost controllers?
What is the cost and work
that I would be looking at for my 91 legacy turbo? I
am looking at adding 2psi.

nue



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Miki

Boost controller

Post by Miki »

--- In BC-BFLegacyWorks@y..., sean john <r32657@y...> wrote:
> Where can I get one of the cheaper boost controllers?

Don't know what model you're lookin for, and what you think is cheap,
but the HBC (Hallman Boost Controller) is sold at least here:
http://www.buschurracing.com (part#6018, $90USD)
http://www.hallmanboostcontroller.com

> What is the cost and work that I would be looking at for my 91
> legacy turbo? I am looking at adding 2psi.
Well, a couple of the guys in this group have made it VERY easy for
you, I suggest you explore Dave's website thouroghly... there is A
LOT of good stuff! The HBC installation is described in "The
Library"...

Of course, you could also use another valve (like I did), e.g. a
Wilkerson (X10-C2-000) relief valve will do the work. BUT, if you
really want to make it good, try this one:

http://www.autospeed.com/C_articles/A_0 ... ticle.html

Good luck !

* Miki *




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Gary Grahn

Boost controller

Post by Gary Grahn »

Check out this website for cheap boost controllers......

http://pages.cthome.net/gus/pictures.html
http://pages.cthome.net/gus/mike.html

home made and very efective....

Later,
Gary


>From: sean john <r32657@yahoo.com>
>
>Where can I get one of the cheaper boost controllers?
>What is the cost and work
>that I would be looking at for my 91 legacy turbo? I
>am looking at adding 2psi.
>
>nue

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com


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Dave C

Boost controller

Post by Dave C »

I had a hallman for a while before i upgraded. It was pretty good
unit but i had to have more.

I just wanted the best, so i got an Apex-i AVC-R. It's really very
good and the response is much smoother and direct than the
HBC or what any MBC could do. It has digital gauges for
vacuum/boost, RPM, Injector and solenoid duty cycle and throttle
position.

I think it was well worth the money. Here's my little write-up on it:
http://www.xmission.com/~dac/library/avcr.htm

--- In BC-BFLegacyWorks@y..., sean john <r32657@y...> wrote:
> Where can I get one of the cheaper boost controllers?
> What is the cost and work
> that I would be looking at for my 91 legacy turbo? I
> am looking at adding 2psi.
>
> nue


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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

i have a turboXS boost controller that i got for $79 from a local speed shop
(www.turboXS.com) hooked it up and its dead accurate. i have it set at 9psi
all the time instead of how the stock one gives you 5psi in 1-3rd gear then 7
in 4th and 8.7 in 5th... big difference... just wish the G-tech had an output
to show measurments

mike

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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

anyone here know how the stock boost solenoid works? is there a way to use
this as a manual controller.... if the ECU sends it a signal at a set time
think there is a way i could buy a pressure sensor and a potentiometer with a
control knob to make the solenoid click open at a set voltage/ohm level
(however it works) if so this would be a great way to make a cheap cockpit
controlled boost controller useing stock parts! im guessing its just a
standard on/off solenoid, click open/shut dealie...

mike
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pjharj@sauk.com

boost controller

Post by pjharj@sauk.com »

Mike, the stock wastegate solenoid is a vacuum operated affair which
is triggered by inlet manifold pressure. It is not controlled by the
ECU at all. It is a fully mechanical device which can be manipulated
by altering the pressure signal it will see.

I believe the aftermarket electronic boost controllers have a fast
acting solenoid placed between the source and the wastegate actuator
(is this accurate?)

--- In BC-BFLegacyWorks@y..., subaruracer755@c... wrote:
> anyone here know how the stock boost solenoid works? is there a way
to use
> this as a manual controller.... if the ECU sends it a signal at a
set time
> think there is a way i could buy a pressure sensor and a
potentiometer with a
> control knob to make the solenoid click open at a set voltage/ohm
level
> (however it works) if so this would be a great way to make a cheap
cockpit
> controlled boost controller useing stock parts! im guessing its
just a
> standard on/off solenoid, click open/shut dealie...
>
> mike


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Dave C

boost controller

Post by Dave C »

My AVC-R has a very fast solenoid valve to control boost, though it's
almost moot due to a pretty slow reacting and weak wastegate. Thank
goodness the ECU won't let it go over .90BAR!

Even the simplest MBC can do a better job than using the creaky stock
parts to do the job. I recommend the Hallman.

--- In BC-BFLegacyWorks@y..., pjharj@s... wrote:
> Mike, the stock wastegate solenoid is a vacuum operated affair
which
> is triggered by inlet manifold pressure. It is not controlled by
the
> ECU at all. It is a fully mechanical device which can be
manipulated
> by altering the pressure signal it will see.
>
> I believe the aftermarket electronic boost controllers have a fast
> acting solenoid placed between the source and the wastegate
actuator
> (is this accurate?)
>
> --- In BC-BFLegacyWorks@y..., subaruracer755@c... wrote:
> > anyone here know how the stock boost solenoid works? is there a
way
> to use
> > this as a manual controller.... if the ECU sends it a signal at a
> set time
> > think there is a way i could buy a pressure sensor and a
> potentiometer with a
> > control knob to make the solenoid click open at a set voltage/ohm
> level
> > (however it works) if so this would be a great way to make a
cheap
> cockpit
> > controlled boost controller useing stock parts! im guessing its
> just a
> > standard on/off solenoid, click open/shut dealie...
> >
> > mike


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Rod

boost controller

Post by Rod »

My stock solenoid, 1992 RS Liberty Turbo, is a 3 port design and controlled
by the ecu.
regards, Rod..... in Oz.
----- Original Message -----
From: <pjharj@sauk.com>
To: <BC-BFLegacyWorks@yahoogroups.com>
Sent: Saturday, August 04, 2001 1:21 AM
Subject: [BC-BFLegacyWorks] Re: boost controller


> Mike, the stock wastegate solenoid is a vacuum operated affair which
> is triggered by inlet manifold pressure. It is not controlled by the
> ECU at all. It is a fully mechanical device which can be manipulated
> by altering the pressure signal it will see.
>
> I believe the aftermarket electronic boost controllers have a fast
> acting solenoid placed between the source and the wastegate actuator
> (is this accurate?)
>
> --- In BC-BFLegacyWorks@y..., subaruracer755@c... wrote:
> > anyone here know how the stock boost solenoid works? is there a way
> to use
> > this as a manual controller.... if the ECU sends it a signal at a
> set time
> > think there is a way i could buy a pressure sensor and a
> potentiometer with a
> > control knob to make the solenoid click open at a set voltage/ohm
> level
> > (however it works) if so this would be a great way to make a cheap
> cockpit
> > controlled boost controller useing stock parts! im guessing its
> just a
> > standard on/off solenoid, click open/shut dealie...
> >
> > mike
>
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@egroups.com
>
>
>
>
>
>


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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

pete, i was talking about the boost controller, NOT the wastegate on the
turbo... follow the lines from the waste gate to the boost controller on the
right side strut tower, then the other hose runs to the turbo...

what im wondering is IS can we manually control this somehow... if i can
make some little piece of equipment from radio snack or something to have it
work on my terms, to keep the stock look under the hood, that would be
better... im all for manual boost controllers, but i was just curious about
this one....
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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

no the hallman and others like it work on a bleed system, bleed off enough
pressuse to stay where you want. others like the HKS EVC-R work on the
solenoid principal... senses a pressure and clicks a solenoid valve and keeps
that pressure... im guessing thats how the stock boost controller works, the
ECU sees a pressure off of the MAP and the program looks at lotsa data and
says, well im a retard and i dont know what all this means cause im an
american ECU , so im gonna throw open the boost controller valve. sends a
pulse to the boost controller and BAM your fun is over...
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Josh Colombo

boost controller

Post by Josh Colombo »

HAHAHA

************************************
Josh Colombo
jcc189@psu.edu

"Life, an ever-changing melody
of beats and rhythm" - ME
************************************



-----Original Message-----
From: subaruracer755@cs.com [mailto:subaruracer755@cs.com]
Sent: Sunday, August 05, 2001 6:57 AM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] Re: boost controller


no the hallman and others like it work on a bleed system, bleed off enough
pressuse to stay where you want. others like the HKS EVC-R work on the
solenoid principal... senses a pressure and clicks a solenoid valve and keeps
that pressure... im guessing thats how the stock boost controller works, the
ECU sees a pressure off of the MAP and the program looks at lotsa data and
says, well im a retard and i dont know what all this means cause im an
american ECU , so im gonna throw open the boost controller valve. sends a
pulse to the boost controller and BAM your fun is over...
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PJHARJ

boost controller

Post by PJHARJ »

Ooops, sorry I misunderstood. I currently have mine disconnected and am
using a homemade manual boost controller. I am currently considering a
different setup though, as I have to keep changing the setting to compensate
for air temp/density.

PeteH


You wrote:

Message: 3
Date: Sat, 4 Aug 2001 13:11:39 EDT
From: subaruracer755@cs.com
Subject: boost controller

pete, i was talking about the boost controller, NOT the wastegate on the
turbo... follow the lines from the waste gate to the boost controller on
the
right side strut tower, then the other hose runs to the turbo...

what im wondering is IS can we manually control this somehow... if i can
make some little piece of equipment from radio snack or something to have it
work on my terms, to keep the stock look under the hood, that would be
better... im all for manual boost controllers, but i was just curious about
this one....


[This message contained attachments]



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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

ok, then where do i get the parts from to make this myself?

i am dying to have a good controller in this car, and the one i made does not work good..



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Brett Middleton

boost controller

Post by Brett Middleton »

we have a "locally" made low cost accurate electronic boost controller...



Brett Middleton

MRT Performance
We Rally, You Win (STi Version 5)

<http://www.mrtrally.com.au/> http://www.MRTrally.com.au main pages
<http://www.mrtrally.com.au/shop> http://www.MRTrally.com.au/shop buy on line

-----Original Message-----
From: subaruracer755@cs.com [mailto:subaruracer755@cs.com]
Sent: Tuesday, 25 September 2001 9:59 AM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] boost controller


ok, then where do i get the parts from to make this myself?

i am dying to have a good controller in this car, and the one i made does not work good..

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subaruracer755@cs.com

boost controller

Post by subaruracer755@cs.com »

i got one of those off of E-bay and had the exact same problem. with it turned all the way down, the needle pegs, when you start to adjust it it does nothing past 4psi (stock waste gate pressure) the problem could lie in that the hose from the turbo to the BC has popped off since its 2piece, check that first. but probally a defective unit. take it off and undo all the fitinggs, one of the fittinggs will let you see inside the unit, if you look inside and turn it and nothing happens, then its bad. did you buy it from "emm-co" on ebay?



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Douglas Hancock

Boost Controller

Post by Douglas Hancock »

How are you going folks. The message below has been sent to Turbo Smart Australia but maybe someone out there would be able help me as well. It is not fun when you have no control over your boost. Here is the web page for those who would like a look. www.turbosmart.com.au <http://www.turbosmart.com.au/>


Hi’

I own a 92 Rs Liberty and I have the following problem. Boost is coming on and off as it pleases. I have had it to the local Subaru specialists ( Auto Craft Newcastle) and we have come to the conclusion thyat the Wastegate Control Soleniod Valve is stuffed. To make sure that this is the problem the car has been booked in at Hunter Subaru on Friday to be confirmed of this problem. The engine light came on for a couple of seconds so we have to plug it into the wall as we could not get any error code on the dash. The original part is $383.

I have been looking at your products for the Gated Boost Control Valve. The Wastegate Control Soleniod Valve has three pipes coming out of it. One comes from the turbo and into the switch. Two comes out out of the switch and into the waste gate. The third is were I am confused, it comes out of the switch and into the intake just after the air flow meter. Do I just plug up number three and forget about it. Also do I leave the switch plugged in. Do I need to purchase a Fuel Cut Defender.

Regards Doug
Newcastle Australia

P.S. I was going to fit a boost control valve later on, but there is no time like the present (besides why should I waste valuable exhaust money).



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dfullerton

Boost Controller

Post by dfullerton »

I have a dawes device on my turbo and yes just plug the pips to the solenoid. As for fuel cut lifter if you want to run higher than 14-15 psi then you will need one.
----- Original Message -----
From: Douglas Hancock <mailto:douglashancock@optusnet.com.au>
To: BC-BFLegacyWorks@yahoogroups.com
Sent: Monday, June 24, 2002 1:34 PM
Subject: [BC-BFLegacyWorks] Boost Controller


How are you going folks. The message below has been sent to Turbo Smart Australia but maybe someone out there would be able help me as well. It is not fun when you have no control over your boost. Here is the web page for those who would like a look. www.turbosmart.com.au


Hi’

I own a 92 Rs Liberty and I have the following problem. Boost is coming on and off as it pleases. I have had it to the local Subaru specialists ( Auto Craft Newcastle) and we have come to the conclusion thyat the Wastegate Control Soleniod Valve is stuffed. To make sure that this is the problem the car has been booked in at Hunter Subaru on Friday to be confirmed of this problem. The engine light came on for a couple of seconds so we have to plug it into the wall as we could not get any error code on the dash. The original part is $383.

I have been looking at your products for the Gated Boost Control Valve. The Wastegate Control Soleniod Valve has three pipes coming out of it. One comes from the turbo and into the switch. Two comes out out of the switch and into the waste gate. The third is were I am confused, it comes out of the switch and into the intake just after the air flow meter. Do I just plug up number three and forget about it. Also do I leave the switch plugged in. Do I need to purchase a Fuel Cut Defender.

Regards Doug
Newcastle Australia

P.S. I was going to fit a boost control valve later on, but there is no time like the present (besides why should I waste valuable exhaust money).



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