Ok i've been searching around to find the answer because i remember somwhere someone had the pressure of an n/a air pump.

I have an 88 n/a and need to know the pressure the air pump puts out so i can do my air pump 6pi activation. I want to get hoseing, valves, and T's that will handle the pressure. I know it cant be much im thinking less than 5psi at max but i may be wrong. I'm gonna be using aquarium parts for this because i can get em for free. I will reconsider useing them if the pressure is to high.

 

Pg. F1-65 of the FSM for S5 NA...
At idle- 1.7 PSI.


I don't see any spec for the maximum output.

 

I will be testing this on sunday, I hope.

The air pump does put out plenty of pressure for AUX and/or VDI.

It would be better though to switch to a S5 ACV since it has a nipple on the ACV which is supplied with air pressure from the air pump. No Need to put a plastic nipple in the large air pump hose.

You will need to use a solenoid and RPM switch to activate them.

If you click on this link you can see where I put the RPM switches and relay box to activate the reused EGR and FPR solenoids for the VDI and AUX. I may switch them out with AUX and VDI xsolenoids from a S5 engine if they work better.
https://www.rx7club.com/showpost.php...6&postcount=57