5th 6th port actuation with no cats
01-03-05, 07:11 PM
#1
keane
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5th 6th port actuation with no cats
the system works by back-pressure generated by the cats and or pre-scilencers. when 3 psi of back-pressure is generated in the exaust. the air control valve opens the ports.
how do you make your 5th and 6th ports open when you have no cats. meaning no or almost no back-pressure. How do i modify the acv valve or wire the ports always open.
if anybody knows than let me know?????????????
how do you make your 5th and 6th ports open when you have no cats. meaning no or almost no back-pressure. How do i modify the acv valve or wire the ports always open.
if anybody knows than let me know?????????????
01-03-05, 07:38 PM
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XBL** Ownicus
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I didn't think the ACV actually handled actuating the ports. I was always led to believe that the pressure pushed them directly. Right now I have gutted pre and main cats, and mine open just fine.
If you want a non-exhaust actuated port setup, you basically use an electric air pump and RPM sensing switch to pop your ports open at a set interval.
[Icemark] There's a search button, use it...... or.. uh... I'll get real mad [/Icemark]
If you want a non-exhaust actuated port setup, you basically use an electric air pump and RPM sensing switch to pop your ports open at a set interval.
[Icemark] There's a search button, use it...... or.. uh... I'll get real mad [/Icemark]
01-03-05, 08:00 PM
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well, what i did was this..
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
01-03-05, 08:13 PM
#6
XBL** Ownicus
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Originally Posted by foild
well, what i did was this..
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
I suppose you can adjust teh valve to change when they open as well. I'd be interested in seeing that in action.
01-03-05, 08:19 PM
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Originally Posted by foild
well, what i did was this..
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
I suppose you can adjust teh valve to change when they open as well. I'd be interested in seeing that in action.
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01-03-05, 08:24 PM
#8
Ban Peak
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Originally Posted by foild
well, what i did was this..
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
clipped the tube that comes off the split air pipe (by exhaust manifold.)
plugged the tube with a screw.
conected left over black tube from split ait pipe (one end ataches to somewhere on the engine) to 1 of two output ports on a aquarium valve.
i then got a union (i actually also got it from a aquarium store.) i used that to tap into the airpump hose (from airpump to acv)
i then put a (another aquarium bought product) airtube to the union, and that went to the INPUT on the valve.
the left over output on the valve i left closed.
i turned her on, and reved to 3800 rpm, where my 6 ports started opening.
i then reved it a little higher, and they slowly (a good slow though) opened fully.
WOOHOOO
took her for a drive, and man what a difference.
i before was just actuating via exhaust back pressure (or lack there of) and i found they only opened halfway.
no, its as solid as a rock.. way more power
if you want a pic pm me.
writeup with pics?
01-03-05, 08:26 PM
#9
Ban Peak
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I have the same problem, I freed up the actuating rods, and they still dont open up. I'm thinking of taking the car to the rotary shop, but i'd rather fix this myself. I have two cats and stock exhaust manifold.
01-03-05, 10:53 PM
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yeah i by no way am trying to take credit for the method i used.. but i can give pics to illustrate what i did (sometimes the writeups dont have very informative pictures, i will try to do mine the best as i can, since i learn better by seeing, than reading, and when the pics are shitty.. well, i still do it but i like peace of mind before i start a project.
ill keep you guys informed... expect pics of my setup tomorow evening say around 6pm pst.
cam
ill keep you guys informed... expect pics of my setup tomorow evening say around 6pm pst.
cam
01-03-05, 10:55 PM
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street racer..
ive never had only one cat.. just all or nothing for me..
but, when i took out the cats, i just assumed they would open fine, but i guess i was wrong.. this method i used seems to pack more of a punch for lack of better words.
ive never had only one cat.. just all or nothing for me..
but, when i took out the cats, i just assumed they would open fine, but i guess i was wrong.. this method i used seems to pack more of a punch for lack of better words.
01-04-05, 07:05 PM
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here yah go 
pic below: see where i joined the tube bought from an aquarium store to the black airpump line???? - start by drilling a hole (i used a drill, with a small nail) and inserting a small plastic airtube coupling (also from aquarium store) into the black airpump line (between airpump and ACV)
now, attach a airline from the coupling, to the input on a 2 way aquarium valve. (input is unviewable in this pic, but it is on the bottom side of the valve you see
http://img.photobucket.com/albums/v2...d/DSC00420.jpg
next, clip airtube from split air pipe and cap, see below
http://img.photobucket.com/albums/v2...d/DSC00422.jpg
now, since like 3 quarters of that airline you just clipped and capped will still be attached the the engine, connect the unused side of tube to one output on the valve.
done.
some people say you need to open up the unused outlet on the valve a little so that the ports open at or around 3800 rpm, but mine worked just right with it completely shut.
test by turning the engine on, and reving the engine up.. you should see the ports start to open at or around 3800 RPM, they will continue to open as you rev higher..
anyways, maybe not the most precise way to do it.. but it worked for me, and now my car runs much smoother.
cam
p.s any questions? --- pm me.
pic below: see where i joined the tube bought from an aquarium store to the black airpump line???? - start by drilling a hole (i used a drill, with a small nail) and inserting a small plastic airtube coupling (also from aquarium store) into the black airpump line (between airpump and ACV)
now, attach a airline from the coupling, to the input on a 2 way aquarium valve. (input is unviewable in this pic, but it is on the bottom side of the valve you see
http://img.photobucket.com/albums/v2...d/DSC00420.jpg
next, clip airtube from split air pipe and cap, see below
http://img.photobucket.com/albums/v2...d/DSC00422.jpg
now, since like 3 quarters of that airline you just clipped and capped will still be attached the the engine, connect the unused side of tube to one output on the valve.
done.
some people say you need to open up the unused outlet on the valve a little so that the ports open at or around 3800 rpm, but mine worked just right with it completely shut.
test by turning the engine on, and reving the engine up.. you should see the ports start to open at or around 3800 RPM, they will continue to open as you rev higher..
anyways, maybe not the most precise way to do it.. but it worked for me, and now my car runs much smoother.
cam
p.s any questions? --- pm me.
01-04-05, 08:15 PM
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the airpump air is filtered, bia your stock air box, or other means.
pretty much just the valve.. lol
thats all there is to it.
essentially, if yours worked the same as mine, you could skip the damn valve, and tap a line into the airpump, then run straight to the 6 ports.
other peeps told me to use a valve, so that you can bleed off excessive air, so they open at the right time, and not too soon..
but mine opened up just right without any bleeding (through the second, open valve)
pretty much just the valve.. lol
thats all there is to it.
essentially, if yours worked the same as mine, you could skip the damn valve, and tap a line into the airpump, then run straight to the 6 ports.
other peeps told me to use a valve, so that you can bleed off excessive air, so they open at the right time, and not too soon..
but mine opened up just right without any bleeding (through the second, open valve)
01-04-05, 08:22 PM
#20
Ban Peak
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Cool man, I'm going to try that as soon as I can. Thanks for the info and writeup!
So the supplies are whats in the pictures?
I totally get it now. That valve has two ribbed connectors on it
one for the clear tube and another for the black tube
then the clear tube goes to the line coming off the air pump.
So the supplies are whats in the pictures?
I totally get it now. That valve has two ribbed connectors on it
one for the clear tube and another for the black tube
then the clear tube goes to the line coming off the air pump.
Last edited by Molotovman; 01-04-05 at 08:30 PM.
01-04-05, 08:51 PM
#21
XBL** Ownicus
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That looks pretty damn sweet. I think I'm going to do that next time I get a semi-warm day.
Do you need to have the aquarium style valve for pressure bleeding, or can you get a small ball valve and just limit the amount that goes through rather then bleeding pressure (so that your ACV doesn't possibly get starved)?
I think I'm going to do that next time I get a semi-warm day.Do you need to have the aquarium style valve for pressure bleeding, or can you get a small ball valve and just limit the amount that goes through rather then bleeding pressure (so that your ACV doesn't possibly get starved)?
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