quick ? 5th and 6th ports
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
you can remove the Actuators.Plug the Hose that comes from the Spli air tube With a Screw.Also cut a small piec of hose off,and use it To plug up where the hose Entered the lower Manifold.(by using a Screw again).Turn those little Pins to the OPEN position,(that is Look at where the Pin and the Port actuator goes Position wise,when the Actuator is DOWN,that will be the Port's OPEN position)..then Wire the Port to OPEN,by using a Zip tie,or small piece of wire,Twist tie,Etc.This wil lmake sure that the Ports Stay open all the Time..Now the Good and Bad about doinng this..THE BAD..it effects Low end Torque..Not by a huge amount..THE GOOD: when the engine Reaches about 3500-4000(Normal Port opening RPM)then the car will Have More "get up and go".It's like Kickin in the Four Barrels!..So there ya go..I didn't Tell you to Search because you Are NEW(welcome to the club!)..the Subject however has been Covered More times than an Ugly Hooker's Face on a Saturday Night!..Good luck.STYX.
you can remove the Actuators.Plug the Hose that comes from the Spli air tube With a Screw.Also cut a small piec of hose off,and use it To plug up where the hose Entered the lower Manifold.(by using a Screw again).Turn those little Pins to the OPEN position,(that is Look at where the Pin and the Port actuator goes Position wise,when the Actuator is DOWN,that will be the Port's OPEN position)..then Wire the Port to OPEN,by using a Zip tie,or small piece of wire,Twist tie,Etc.This wil lmake sure that the Ports Stay open all the Time..Now the Good and Bad about doinng this..THE BAD..it effects Low end Torque..Not by a huge amount..THE GOOD: when the engine Reaches about 3500-4000(Normal Port opening RPM)then the car will Have More "get up and go".It's like Kickin in the Four Barrels!..So there ya go..I didn't Tell you to Search because you Are NEW(welcome to the club!)..the Subject however has been Covered More times than an Ugly Hooker's Face on a Saturday Night!..Good luck.STYX.
I'm a boost creep...
Joined: Jan 2002
Posts: 15,608
Likes: 8
From: Auckland, New Zealand
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Do you have an aftermarket exhaust setup...???
Open ports provide more high end power, less low end power & mpg.
Closed ports provide more low end power & mpg, less high end power.
The ports normally open at high rpms and close at low rpms.
The ports are only there to boost power. They give 25 HP in the high rpms. They are not essential at all. You may remove the actuators so the ports stay closed or wire them open and your car will still run as well as it did before.
Closed ports provide more low end power & mpg, less high end power.
The ports normally open at high rpms and close at low rpms.
The ports are only there to boost power. They give 25 HP in the high rpms. They are not essential at all. You may remove the actuators so the ports stay closed or wire them open and your car will still run as well as it did before.
Full Member
Joined: May 2006
Posts: 192
Likes: 0
From: Victoria
Open ports provide more high end power, less low end power & mpg.
Closed ports provide more low end power & mpg, less high end power.
The ports normally open at high rpms and close at low rpms.
The ports are only there to boost power. They give 25 HP in the high rpms. They are not essential at all. You may remove the actuators so the ports stay closed or wire them open and your car will still run as well as it did before.
Closed ports provide more low end power & mpg, less high end power.
The ports normally open at high rpms and close at low rpms.
The ports are only there to boost power. They give 25 HP in the high rpms. They are not essential at all. You may remove the actuators so the ports stay closed or wire them open and your car will still run as well as it did before.
why not have them functioning properly and have the best of both worlds the way they were designed for
Joined: Dec 2003
Posts: 6,598
Likes: 10
From: Temple, Texas (Central)
I don't know where to start, because there has been so much BS posted so far.
The car is designed for the ports to be closed at low RPMs and open above about 3500. If it operates ANY other way you are hurting the performance of the car, not to mention the gas mileage and overall driveability. If you keep them closed it kills high end power, if you wire them open it kills low end power (like where you drive it 90% of the time.) Despite what ANYONE tells you, it is a noticeable difference.
I am not basing this on other people's experiences, I am basing it on my own. When I bought my car the ports were wired open, and it was lifeless at low rpms. Once I fixed the system to operate properly, there was a very noticeable difference in how it felt in the low RPM range, and I noticed several MPG increase in fuel economy.
Secondly, there is NO POSSIBLE WAY that wiring open the ports can increase the top end power over a functional system, as so many people seem to be saying. How do I know this? Because functions EXACTLY the same as if the actuators had opened the port.
Again, there is NO GAIN to wiring them open over a properly working system.
No many of you go on about how you removed the air pump (which is pretty pointless since it doesn't sap any meaningful horsepower.) Or maybe you changed your exhaust if you have an s4. So what? It is very simple to operate them with an air pump. You can easily do it in an afternoon and it should cost less than $100 in parts and tools. Here are the directions: http://howto.globalvicinity.com/gv_w...i=48&co=1&vi=1 There are other ways to do it elsewhere on that site or at www.rotaryresurrection.com in the tech section.
The only excuse not to have a functional system is laziness or complete cheapness, neither of which mesh well with owning an FC.
The car is designed for the ports to be closed at low RPMs and open above about 3500. If it operates ANY other way you are hurting the performance of the car, not to mention the gas mileage and overall driveability. If you keep them closed it kills high end power, if you wire them open it kills low end power (like where you drive it 90% of the time.) Despite what ANYONE tells you, it is a noticeable difference.
I am not basing this on other people's experiences, I am basing it on my own. When I bought my car the ports were wired open, and it was lifeless at low rpms. Once I fixed the system to operate properly, there was a very noticeable difference in how it felt in the low RPM range, and I noticed several MPG increase in fuel economy.
Secondly, there is NO POSSIBLE WAY that wiring open the ports can increase the top end power over a functional system, as so many people seem to be saying. How do I know this? Because functions EXACTLY the same as if the actuators had opened the port.
Again, there is NO GAIN to wiring them open over a properly working system.
No many of you go on about how you removed the air pump (which is pretty pointless since it doesn't sap any meaningful horsepower.) Or maybe you changed your exhaust if you have an s4. So what? It is very simple to operate them with an air pump. You can easily do it in an afternoon and it should cost less than $100 in parts and tools. Here are the directions: http://howto.globalvicinity.com/gv_w...i=48&co=1&vi=1 There are other ways to do it elsewhere on that site or at www.rotaryresurrection.com in the tech section.
The only excuse not to have a functional system is laziness or complete cheapness, neither of which mesh well with owning an FC.
A street car should have functional 5th/6th ports opening and closing when they are supposed to. Period.
Joined: Dec 2003
Posts: 6,598
Likes: 10
From: Temple, Texas (Central)
Removing the sleeves and the actuator rods can have a gain in HP (not sure how much), but its only advisable on track cars.
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