should pressure sensor have restrictor?
#6
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Originally Posted by NZConvertible
Actually if you look at the Mazda parts catalogue it's called an "orifice".
#7
I'm a boost creep...
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Originally Posted by rx7jocke
is it possible to remove it without problems?
Why would you deliberately remove it anyway?
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#9
Jesus is the Messiah
The reason that 'pill' is there:
The rotary engine has some insanely strong intake and exhaust pulses
If you hook a vac gauge up to just pure vac, the needle will bounce like crazy.
You don't want the MAP sensor to pick up those fluctuations, you only want it to read the manifold pressure. So you put in that 'pill' to restrict the flow, smoothing it out.
Now, for you guys who need a new pill, go to an aquarium store and get an air preportioner valve. These are used for controlling the amount of air an airpump can send to one of those little air stones.
They tend to be T-shaped and have a little lever on top to adjust the amount of flow. If you have a vac gauge or a boost gauge that shows accurate vac, just adjust the valve untill the needle stops shaking, no more.
You can probably borrow a vac gauge from your mechanic if you dont have one, just for a minute.
The big bonus is that these preportioner valves tend to cost about $1.25. Don't forget to cap off the other side of the T if you are not using it.
The rotary engine has some insanely strong intake and exhaust pulses
If you hook a vac gauge up to just pure vac, the needle will bounce like crazy.
You don't want the MAP sensor to pick up those fluctuations, you only want it to read the manifold pressure. So you put in that 'pill' to restrict the flow, smoothing it out.
Now, for you guys who need a new pill, go to an aquarium store and get an air preportioner valve. These are used for controlling the amount of air an airpump can send to one of those little air stones.
They tend to be T-shaped and have a little lever on top to adjust the amount of flow. If you have a vac gauge or a boost gauge that shows accurate vac, just adjust the valve untill the needle stops shaking, no more.
You can probably borrow a vac gauge from your mechanic if you dont have one, just for a minute.
The big bonus is that these preportioner valves tend to cost about $1.25. Don't forget to cap off the other side of the T if you are not using it.
Last edited by Tofuball; 04-05-05 at 06:56 AM.
#10
I'm a boost creep...
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Originally Posted by rx7jocke
okey....i have a TII.
New silicone vac-hoses witch is slightly larger så I cant get the pill to be still in the vac-hose
New silicone vac-hoses witch is slightly larger så I cant get the pill to be still in the vac-hose
#11
Like Ghandi with a gun
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I bought one a couple weeks ago and in stalled it. Let me find the thread with the p/n...
I see you must not have searched much, but anyhow:
https://www.rx7club.com/forum/showth...hlight=orifice
I see you must not have searched much, but anyhow:
https://www.rx7club.com/forum/showth...hlight=orifice
#12
HAILERS
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Originally Posted by Kenteth
I bought one a couple weeks ago and in stalled it. Let me find the thread with the p/n...
I see you must not have searched much, but anyhow:
https://www.rx7club.com/forum/showth...hlight=orifice
I see you must not have searched much, but anyhow:
https://www.rx7club.com/forum/showth...hlight=orifice
#13
Lives on the Forum
I actually made one out of a little wooden dowel once, with a 1/64" hole drilled through the center. Seemed to work OK until I found an OEM replacement. I didn't notice any change in the way of driveability when I drove mine around without the pill for a while. Orifice...Restrictor...Whatever...
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