I'm replacing the motor out of my 90 vert.
figured while i was at it i would go ahead and remove some emission stuff, like air pump, dynamic chamber air control valve, charcoal canister, and all the rats nest, (all the vacuum lines).

i have now removed all of this but now the problem i ran into is that i don't know where to hook up the 6th ports actuators. and the VDI system actuator, (do i just put them to any vacuum line on the intake or what is needed to be done?)

also i am not removing the omp, so do i just plug the vacuum lines that go to the oil metering nozzles?

 

any help would be appreciated.

thanks

Abner

 

With no air pump you need some other means of actuating them properly. Otherwise your only option is to wire them open and lose low end power and torque.

 

Those components don't use vacuum they use pressure...and you've removed the source of said pressure (the air pump).
I've read of using a Ford (?) lumbar support air pump for this purpose but never seriously looked into it.

 

if i was to take them out, (or make em stick open) how bad would the loos of power/torque be?
and after how many rpms will i have regular power?
would there be any other cons to doing this?
and what would happen to the VDI? would i need to leave that open as well?

i might just put all that stuff bak on, till i find out how to get em to work a different way

 

The auxiliary ports open around 3800 RPM and the VDI at 5200 or 5500, I can't remember which at the moment.

 

Put the air pump back on, split the output so that the 5th/6th ports and VDI have pressure, actuate them with stock wiring.

If you wired both open... Torque and fuel economy would suffer up to 5500RPM [when VDI is supposed to open].
If you wired just the 5th/6th open you'll loose torque and fuel economy up to 3600RPM and then loose torque and power starting at 5500RPM [because of the VDI being closed]

Also the OMP injectors need vacuum, there's a second nipple on the intake tube that you can use to feed the splitter.

Edit: JerryLH3>> I believe secondary injectors are at 3800, 5th/6th are at 3600, and VDI at 5500RPM

 

OMP oil injectors don't get vacuum put to them. See the free online Training Manual

 

thanks for the help guys.

i have put all back on the motor, just waiting on a pilot bearing to drop the motor.
i will keep looking on how to do it right before i try it again.
but once again
thanks

Abner

 

Training Manual? Do you mean the FSM? and if so, where? I can't find any diagrams on where the vacuum hose from the OMP injector splitter goes to on S5. I assumed it was to vacuum like S4..

 

http://foxed.ca/rx7manual/manuals/Training%20Manual/

 

Thanks.

Though that's S4 again, and I knew that it connected to the dynamic chamber [TB/DC/UIM removal on S4 feels pretty routine nowadays..]

The last page of the Training Manual 2. Lubrication System shows it.

But that's still considered vacuum, right?

Also, it shows on the last page of the S5 Service Manual: Lubrication section [2] that air can only go through the oil injectors into the intake, and the Training manual says "When vacuum is created in the combustion chamber and intake manifold during the suction period, the check valve is pulled open and allows air to mix with the oil. During the compression period, pressure is applied and the valve closes to prevent back flow of the oil into the connecting hose."

To me that sounds like: when the "suction period" is taking place, it pulls the check valve open and air from the Dynamic Chamber gets pulled into the injector as needed. When the "compression period" is taking place, the vacuum pressure in the Dynamic Chamber pulls the valve closed.

Sound right?

 

removing the emissions on a s5 is the worst thing you can do. bad gas milage and horsepower goes down hill. then you have major drivability issues.

 

Looks like I'm going to be leaving it as is 8)
It was just a tought so I wouldent have all the (extra) stuff, witch is needed.

Thanks again

Abner

 

gold mine..

bookmarked