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Old 02-22-2008, 12:44 AM   #1
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Default turbo pcv valve

i just want to know if there really is one? and do i need one? where can i get it if i need one?
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Old 02-22-2008, 12:48 AM   #2
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Go to the dealer, or Rosenthal or Trussville Miata and ask for one off a 323 GTX.

The stock one won't keep boost out of your crankcase after 3-4 psi which = Bad.
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Old 02-22-2008, 12:49 AM   #3
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all i have is greddy does that still mean i need to get one
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Old 02-22-2008, 12:50 AM   #4
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whats a 323 gtx?
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Old 02-22-2008, 12:51 AM   #5
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Mazda dealer, 323 gtx turbo PCV. Call up finishline performance get it from tommy. He sells them.

Edit: The 323 was a model mazda, small car with the same motor as the miata.
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Old 02-22-2008, 12:58 AM   #6
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alright ill do that ...one more question can someone school me or give me a link on this valve..i just want to learn on why i have to change it and whats the difference between the NA and the NB pcv
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Old 02-22-2008, 01:14 AM   #7
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just go do it, it costs 22-25 dollars,
depending on dealer and location,
and takes no more than 15 seconds to change..


it will bug u if u dont change it now that u know they go
and if it does go, ull be kicking ur self in the head
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Old 02-22-2008, 01:16 AM   #8
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Quote:
Originally Posted by mike_671 View Post
alright ill do that ...one more question can someone school me or give me a link on this valve..i just want to learn on why i have to change it and whats the difference between the NA and the NB pcv
NA PCV is straight, atleast the 1.6s i think. The NBs use a 90* outlet pcv.
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Old 02-22-2008, 02:19 AM   #9
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Rosenthal has added this item to the miata maintenance parts category at their online shop. It even mentions turbo miata guys in the description.
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Old 02-22-2008, 09:45 AM   #10
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E301-13-890A

Thats the part number.

I got mine the other day. Decided to test it out so I blew into one end and funny stuff... If you blow lightly it lets air through but blow hard and it locks. I found that out the hard way. I blew so hard to test it that I crapped myself.
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Old 02-22-2008, 11:43 AM   #11
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Old 02-22-2008, 11:47 AM   #12
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I've gone through (4) non-oem valves, they suck donkey dick.
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Old 02-22-2008, 07:47 PM   #13
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So I'm assuming that if you run the stock PCV valve, you will most likely have excessive oil consumption from the crank case being pressurized under boost? I never got around to changing mine and after going turbo, put on 15k @ 10psi and I didn't notice anything out of the ordinary.
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Old 02-22-2008, 08:05 PM   #14
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Quote:
Originally Posted by Braineack View Post
I've gone through (4) non-oem valves, they suck donkey dick.
So GTX FTW?
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Old 02-22-2008, 08:09 PM   #15
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So GTX FTW?
No, he means get the napa one.
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Old 02-22-2008, 08:14 PM   #16
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alright im going to try to get it today. since im in guam my dealership most likely wont have it :( and i my friend tried napa NA ones.. they work but then again hes NA
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Old 02-22-2008, 08:29 PM   #17
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just as i thought ... they didnt have it ...they said they can special order for $42.35 ..so i said never mind
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Old 03-14-2008, 09:48 AM   #18
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Quote:
Originally Posted by Saml01 View Post
E301-13-890A

Thats the part number.

I got mine the other day. Decided to test it out so I blew into one end and funny stuff... If you blow lightly it lets air through but blow hard and it locks. I found that out the hard way. I blew so hard to test it that I crapped myself.
Thanks for the info, I ordered mine today!
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Old 03-14-2008, 02:15 PM   #19
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After finding even the GTX PCV leaks at above 7psi I stuck a weber carb check valve in line with mine - works pretty well and it holds back up to 25psi so shouldn't cause me any more problems I don't think!

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