5th & 6th Port problems..
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5th & 6th Port problems..
I put my RB header on and the resonator. Shouldnt the ports open or is there an other mod I need to do? the last thread about it i had some people were saying the resonator builds the backpressure to open them. I need some advice
#2
your profile says 87 rx7. on s4's and s5's the aux. ports open different. s4's they open with exhaust backpressure. (with the header there might not be enoughbackpressure to open them.) on s5's the airpump supplys air to a valve on the rats nest, that opens acordinglly, and feeds that air to the ports.
thers ways to actuate the ports on s4's via airpump or small electric compressor(search)
thers ways to actuate the ports on s4's via airpump or small electric compressor(search)
#4
Rotors still spinning
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If you are using the Racing Beat header and their presilencer that has the split air pipe on it, it is still actuated by exhaust pressure and should still function normally. If you are trying to just rev it at idle to visually see if they are opening, it won't work. You need to be under load. Does your car drive fine or have you lost all of your top end?
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It seems to pull the in topend. but before with stock exhaust on I could rev it from under the hood and see them open and close. I have the resonator from CorkSport that doesnt have the split air pipe.
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#14
whats going on?
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If you are using the Racing Beat header and their presilencer that has the split air pipe on it, it is still actuated by exhaust pressure and should still function normally. If you are trying to just rev it at idle to visually see if they are opening, it won't work. You need to be under load. Does your car drive fine or have you lost all of your top end?
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http://www.corksport.com/corksport-p...ipe-stock.html
Thats the resonator I got since a few people on here had said that would work and open the ports on my s4. Im going to have the flange welded to the resonator and ill be set.
Thats the resonator I got since a few people on here had said that would work and open the ports on my s4. Im going to have the flange welded to the resonator and ill be set.
#19
Since your Corksport does not have a pick up to supply pressure to the split air pipe and your air pump is still installed. Use the air pump to open the aux ports. This is one write up.
http://www.rotaryresurrection.com/2n...actuation.html
Here's another.
https://www.rx7club.com/2nd-gen-archive-72/how-air-pump-auxilary-port-activation-330310/
http://www.rotaryresurrection.com/2n...actuation.html
Here's another.
https://www.rx7club.com/2nd-gen-archive-72/how-air-pump-auxilary-port-activation-330310/
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This is what I was going to do. There is about a 3 inch pipe between my collector and resonator. i was going to tap into that to put the split air pipe to. Would that be too much air or would that be ok? I could also go all the way to the backside of the resonator but I was trying to use the stock split air pipe without to many mods to it.
#21
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Read this: http://mazdarx7.iougs.com/intakeair.shtml. You would be duplicating how it works on an S5 NA.
If you want to use the air pump to activate the actuators, you don't need the split air pipe at all. You can add a nipple on the air pump outlet (or even the ACV if you put it where the S5 NA does), run a line to an emissions solenoid controlled by an RPM switch, and then run a line from there directly to the aux. port hardline.
If you want to use the air pump to activate the actuators, you don't need the split air pipe at all. You can add a nipple on the air pump outlet (or even the ACV if you put it where the S5 NA does), run a line to an emissions solenoid controlled by an RPM switch, and then run a line from there directly to the aux. port hardline.
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