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OMP and boost. A potential problem.

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Old May 23, 2007 | 03:30 PM
  #26  
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MM needs to work for MNAO....
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Old May 23, 2007 | 03:31 PM
  #27  
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Best bet is to use one of the existing nipples on the lower manifold.
That way, any oil that goes the wrong direction will not spray down the entire inside of your manifold.

That said, you probably don't need to worry about any of this. I suggest you do the vacuum test on your nozzles. If they hold a vacuum, don't do anything.
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Old May 23, 2007 | 03:33 PM
  #28  
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Originally Posted by Jedi54
MM needs to work for MNAO
Apparently I do. They just don't pay me.
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Old May 23, 2007 | 03:36 PM
  #29  
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Originally Posted by MazdaManiac
Ahh. I see. The FSM has the procedure.
All 8 of mine fail that test. What might that mean?

Additionally, what is the metering pump's outlet pressure?

So we need to seek out the "Flying Spaghetti Monster" (FSM) for the procedure??

Good thing I'm a pastafarian!

RAMEN!!
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Old May 24, 2007 | 02:57 PM
  #30  
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I checked the nozzle assembly on the current motor and it holds a vacuum just fine.
I'll have to keep checking it periodically.
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Old May 25, 2007 | 11:01 PM
  #31  
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Let us know if you find a reason for the other check valves not working.

Sounds like the system would be happier with clean oil being fed to it rather than what it gets stock. That may be a compromise high performance owners may want to address.

Waiting on the edge of my seat MM!

Last edited by jeffe19007; May 25, 2007 at 11:03 PM.
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Old May 25, 2007 | 11:06 PM
  #32  
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Well, I vac tested them all (and the nozzles in the current engine) and I'm 50% on them.
All of the nozzles in the current motor check out and 2 out of the previous 8 do as well.
Soaking them with carb cleaner did nothing, but that might change after a few days.
I'll hit them with some high-pressure air and see if they snap shut.
This would be a very tiny vacuum leak under normal circumstances.
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Old May 25, 2007 | 11:11 PM
  #33  
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Small enough a vacuum leak for a rough idle? That thought is from my carb days... I dont know how the 8s injection would react.
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Old May 25, 2007 | 11:37 PM
  #34  
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I don't think so. Even if all four were wide open, I don't think it would even draw as much air as the air mixing jets in the primary ports which are also un-metered.

I'm more concerned about the oil delivery during positive manifold pressure.
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Old May 25, 2007 | 11:49 PM
  #35  
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Great...now we have to use FI on the oil system as well...

Haaa...

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Old May 28, 2007 | 11:44 PM
  #36  
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Originally Posted by MazdaManiac
I don't think so. Even if all four were wide open, I don't think it would even draw as much air as the air mixing jets in the primary ports which are also un-metered.

I'm more concerned about the oil delivery during positive manifold pressure.
all of the rx7 turbo aftermarket turbo kits have you put the vacuum feed for the metering nozzles in front of the turbo.

sometimes this doesnt work, and capping them off does. its confusing.

http://www.rx7club.com/showthread.ph...etering+nozzle

http://www.rx7club.com/showthread.ph...light=metering
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Old Jun 6, 2007 | 08:19 AM
  #37  
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Cool

I have a plan and I'm ready to test it but I do have a question. Of the two hoses that go below the manifold(OMP and FI) Which one is the one for the OMP? They both have a small painted rectangle on them, one is white and the other is yellow. Which is which? Let me know. Thanks

Esmeril
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Old Jun 6, 2007 | 01:23 PM
  #38  
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Unhappy Anyone?

Any comments...
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Old Jun 6, 2007 | 01:46 PM
  #39  
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I found this
https://www.rx8club.com/attachment.p...4&d=1119090735
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Old Jun 6, 2007 | 01:51 PM
  #40  
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Originally Posted by Speedrx8er
Aww sweet! Thanks man.....Are you finishing today? I want to see/hear your car and a drive to my house would be perfect to test out the system....ehhhhh...no? haha LMK how it goes.

Chris
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Old Jun 6, 2007 | 01:55 PM
  #41  
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Originally Posted by ChrisRX8PR
Any comments...
You check the service manual yet? I'll check mine if you do not have a copy...
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Old Jun 6, 2007 | 01:58 PM
  #42  
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Originally Posted by eviltwinkie
You check the service manual yet? I'll check mine if you do not have a copy...
Could you check it for me? I dont have a copy. Thanks.

Chris
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Old Jun 6, 2007 | 02:56 PM
  #43  
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Originally Posted by ChrisRX8PR
Aww sweet! Thanks man.....Are you finishing today? I want to see/hear your car and a drive to my house would be perfect to test out the system....ehhhhh...no? haha LMK how it goes.

Chris

Yup, pan goes in todayn after i get work. then I'll have to go hunting for that one last thing.
If I find it I might dive over. But i'll do some driving around my place first ..

All I can think of is that dam oil pan and i am done hehehe. Here I am at sitting on my butt at work.


Give Ted a call. He does not work until 4 and he have a shop manual
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