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-   -   what PSI open actuators (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/what-psi-open-actuators-330458/)

miketreid 07-22-04 07:34 PM

what PSI open actuators
 
How much psi does it take to open the actuators for the aux ports on an N/A?

wpgrexx 07-22-04 08:58 PM

s4 I bekleive they partially open at 1.5 psi and fully at 2psi.

miketreid 07-22-04 09:05 PM

Supercharger boost
 
Do you think that the psi from the supercharger boost would open them then. And if it does do you think this will help get more power?

DEZERTE 07-22-04 09:24 PM


Originally Posted by miketreid
Do you think that the psi from the supercharger boost would open them then. And if it does do you think this will help get more power?

no... you will destroy the diaphram (sp?) inside the actuator if you use the supercharger boost to open them. Either that, or you will blow the hose off or something, you need 3psi in that tiny hose to fully open them (i think its 3 psi)
forcing more than that wont do you any good. all it does is open up a valve.
If you were to take offyour lower intake manifold and look and look at the sleeves, etc then youd see what i was talking about ;)

miketreid 07-22-04 09:42 PM

Supercharger at 7000 rpm is only going to puch a max of 7psi boost, do you think that would still not work?

Kenteth 07-22-04 11:06 PM

this just sounds like a poor idea.

DEZERTE 07-22-04 11:11 PM


Originally Posted by miketreid
Supercharger at 7000 rpm is only going to puch a max of 7psi boost, do you think that would still not work?

Its going to be WAY more than 7psi if its flowing through a 1/4" tube.. Trust me. Just use your air pump to open the ports, it will work much better. Please dont bother trying to do it with the super charger..

Icemark 07-22-04 11:36 PM


Originally Posted by miketreid
How much psi does it take to open the actuators for the aux ports on an N/A?

Start to open at 1.2 PSI, fully open at 2.1 PSI on a 84-88 13B, and lower for a 89-91.

HAILERS 07-23-04 12:30 AM


Originally Posted by Icemark
Start to open at 1.2 PSI, fully open at 2.1 PSI on a 84-88 13B, and lower for a 89-91.

Sounds like that's what someone measures with his otherwise useless BOOST gauge once he goes back from turbo to non turbo.

Icemark 07-23-04 09:47 AM


Originally Posted by HAILERS
Sounds like that's what someone measures with his otherwise useless BOOST gauge once he goes back from turbo to non turbo.

Yeah... and what are you saying??? I got that stupied gauge pod mounted anyway:(

actually its from the shop manual

SureShot 07-23-04 10:19 AM


Originally Posted by miketreid
Supercharger at 7000 rpm is only going to puch a max of 7psi boost, do you think that would still not work?

If you used a manual boost controller to drop the pressure down to ~2 PSI.


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