question about 5th and 6th ports
04-24-03, 11:29 AM
#1
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question about 5th and 6th ports
what controlls the 5th and 6th ports? i know its backpressure off the exhaust but how exactly does it work? and how do you keep the ports functioning after getting header put in place with no cats.
04-24-03, 11:32 AM
#2
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86-88 exaust backpressure.
89-92 air pump and acv activated.
from both those sources of pressure, pressure goes to the brown and white solonids. when activated, the pressure is then routed to 6 port actuater diaphrams, and viola. they open.
89-92 air pump and acv activated.
from both those sources of pressure, pressure goes to the brown and white solonids. when activated, the pressure is then routed to 6 port actuater diaphrams, and viola. they open.
04-24-03, 01:00 PM
#3
Originally posted by jcina7
86-88 exaust backpressure.
89-92 air pump and acv activated.
from both those sources of pressure, pressure goes to the brown and white solonids. when activated, the pressure is then routed to 6 port actuater diaphrams, and viola. they open.
86-88 exaust backpressure.
89-92 air pump and acv activated.
from both those sources of pressure, pressure goes to the brown and white solonids. when activated, the pressure is then routed to 6 port actuater diaphrams, and viola. they open.
Only the Series 5 has solenoids that control the 6-port actuators. On the series 4, the exhaust backpressure goes directly to the 6-port actuators.
Jarrett
04-24-03, 07:21 PM
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Have you ever seen "5th and 6th ports" written in the FSM? Didn't think so...
It doesn't sound like slang, it just sounds like you don't know what you're talking about.
It doesn't sound like slang, it just sounds like you don't know what you're talking about.
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04-24-03, 07:46 PM
#9
Originally posted by NZConvertible
Have you ever seen "5th and 6th ports" written in the FSM? Didn't think so...
It doesn't sound like slang, it just sounds like you don't know what you're talking about.
Have you ever seen "5th and 6th ports" written in the FSM? Didn't think so...
It doesn't sound like slang, it just sounds like you don't know what you're talking about.
Look dude you understude what I said. I don't care if it is not in the FSM. Just about everyone calles them that here. Who gives a **** anyways this guy does not need you screwing up his thread with useless garbage.
To the thread started: Auxilary ports and 5th and 6th ports are the same thing. We call them 5th and 6th here because the N/a engines have 6 ports the 5th and 6th are just that the fith and sixth ports on a six port engine. We are using logic.
04-24-03, 07:47 PM
#10
Re: question about 5th and 6th ports
Originally posted by IDx
what controlls the 5th and 6th ports? i know its backpressure off the exhaust but how exactly does it work? and how do you keep the ports functioning after getting header put in place with no cats.
what controlls the 5th and 6th ports? i know its backpressure off the exhaust but how exactly does it work? and how do you keep the ports functioning after getting header put in place with no cats.
Oh and did you notice he used that term and not "auxilary" I think using his terms will make it easier for him to understand an explenation. You don't have to be DICK about it.
04-24-03, 07:49 PM
#11
Woah!!!
Bad attitude man!
Aux-ports, 6-ports, 5th and 6th ports...Whatever.
Its all the same thing. Same as stabilizer bars, sway bars, and ANTI-sway bars.
Sheesh, you people need a standing prescription to some valium...
Jarrett
*edit* Hey 87RX7GUY, take NZC with a grain of salt, he is only trying to help.
Bad attitude man!
Aux-ports, 6-ports, 5th and 6th ports...Whatever.
Its all the same thing. Same as stabilizer bars, sway bars, and ANTI-sway bars.
Sheesh, you people need a standing prescription to some valium...
Jarrett
*edit* Hey 87RX7GUY, take NZC with a grain of salt, he is only trying to help.
04-24-03, 08:00 PM
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thanks for all the response.. i was just curious how i would deal with those evil ports once i remove my air pump and acv when i get my headers.. any suggestions?
04-24-03, 08:21 PM
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Originally posted by IDx
im going to be removing all of that i live in florida.. no emissions.. muahah im going to run a rb header straight through
im going to be removing all of that i live in florida.. no emissions.. muahah im going to run a rb header straight through
04-24-03, 08:37 PM
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Notice how some of the younger members resort to flaming when they get upset? Anyway...
The auxillary ports are not evil, they are your friends, and the reason why 6-port NA engines make a lot more power than earlier 4-port ones.
The actuators require very little pressure to operate (2.1psi to fully open), and if the sleeves can turn freely in the housings then a free-flowing exhaust should be fine. Those that have problems with the ports not opening once the ehaust is freed up usually have sticking actuators or sleeves.
Download the NA EFI chapter of the factory service manual from www.fc3s.org to learn how to diagnose and fix this system. Look in the contents under "Auxilary ports".
Originally posted by IDx
i was just curious how i would deal with those evil ports once i remove my air pump and acv when i get my headers.
i was just curious how i would deal with those evil ports once i remove my air pump and acv when i get my headers.
The actuators require very little pressure to operate (2.1psi to fully open), and if the sleeves can turn freely in the housings then a free-flowing exhaust should be fine. Those that have problems with the ports not opening once the ehaust is freed up usually have sticking actuators or sleeves.
Download the NA EFI chapter of the factory service manual from www.fc3s.org to learn how to diagnose and fix this system. Look in the contents under "Auxilary ports".
04-24-03, 08:41 PM
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heh. might want to look into building something to make elec. ports. Although as far as I know people have tried that with either difficult or no success.
04-24-03, 08:48 PM
#23
Originally posted by NZConvertible
Notice how some of the younger members resort to flaming when they get upset? Anyway... The auxillary ports are not evil, they are your friends, and the reason why 6-port NA engines make a lot more power than earlier 4-port ones.
The actuators require very little pressure to operate (2.1psi to fully open), and if the sleeves can turn freely in the housings then a free-flowing exhaust should be fine. Those that have problems with the ports not opening once the ehaust is freed up usually have sticking actuators or sleeves.
Download the NA EFI chapter of the factory service manual from www.fc3s.org to learn how to diagnose and fix this system. Look in the contents under "Auxilary ports".
Notice how some of the younger members resort to flaming when they get upset? Anyway... The auxillary ports are not evil, they are your friends, and the reason why 6-port NA engines make a lot more power than earlier 4-port ones.
The actuators require very little pressure to operate (2.1psi to fully open), and if the sleeves can turn freely in the housings then a free-flowing exhaust should be fine. Those that have problems with the ports not opening once the ehaust is freed up usually have sticking actuators or sleeves.
Download the NA EFI chapter of the factory service manual from www.fc3s.org to learn how to diagnose and fix this system. Look in the contents under "Auxilary ports".
04-24-03, 09:31 PM
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Wouldn't the aux ports take longer to open w/ free exhaust? Backpressure would build up sooner w. an obstuction there like a cat. I think the biggest problem is that they do not open when the time is optimal, even though enough back pressure may be created with a free flowing exhaust.
