Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

dna boost controller

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Old Oct 26, 2003 | 02:04 AM
  #2  
Daredevil's Avatar
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From: at the track
buddy of mien has one
he has no complaints

i went EBC with greddy profec b spec 2
Old Oct 26, 2003 | 11:54 PM
  #3  
Nate0125RS's Avatar
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From: Hampton, VA
Car Info: '03 Silver WRX
I have a Hallman Pro RX boost controller from MachV.com and it works great.
Old Oct 27, 2003 | 08:01 AM
  #4  
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Car Info: 04 Java Black Sedan
Do you have any problems with your boost not holding at what it is set at. i have mine set at 16psi, but it fluctuates all over the place. Normally it drops off a bit, can't figure out why. I don't really have any mods yet other than a K&N filter and the MBC.
Old Oct 27, 2003 | 11:51 PM
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cause its an MBC?
Old Oct 27, 2003 | 11:54 PM
  #6  
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<--- $7 in parts from home depot
Old Oct 28, 2003 | 10:54 AM
  #7  
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Car Info: 04 Java Black Sedan
It has nothing to do with the fact that it is a MBC. I used one on my Talon for 2 years and it always worked fine. Is it possible that the stock turbo cannont hold 16 till redline.
Old Oct 29, 2003 | 01:20 PM
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Originally posted by Scott@S-Squared
<--- $7 in parts from home depot

HAHA so true.

I got my Oakos MBC and I was like...I could make this...
Old Oct 29, 2003 | 02:26 PM
  #10  
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From: Watsonville, Ca
Car Info: 02 WRX WRB 4EAT VF34 Kit w/AP
I GOT ONE.

No issues so far. I actually notice a little more response in boost. Less or no wastegate creep because on the inlet side of the MBC is a little hole, (acts like a restictor)so you have more time to build boost before it has time for the Mbc to open and let the pressure out to the wastegate.

It's up to you, But I am happy with it so far. And I got it from subarustore also, along with my Greddy EVO CATback. Next, SAMCO IC hoses.
Old Oct 29, 2003 | 02:58 PM
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i refuse to believe these expensive mbc's suck. As stated earlier, the 20 dollar Oakos unit is made out of parts salvaged from Ace hardware, and I've heard nothing but good things about it. How can a 100 dollar MBC be bad quality?
Old Nov 1, 2003 | 04:01 PM
  #13  
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Originally posted by navwrx
I ask myself the same question every day. But the fact is, at least with the turbo xs standard that cost me about 80$. It sucks. I've got about 20 hours total into adjusting it. It spikes in almost every gear especially in 4th and 5th. I tried shortening the hoses making them a straighter path, mounting it somewhere less exposed to heat with the same result. It sucks. I would sell it in fs by members but I would feel bad for selling someone such a peice of crap. When my dna mbc gets here I'll give the t xs away to anyone willing to waste five bucks for shipping.

lol same thing with my GFB bov.

I bought it, now it sucks ***, and I feel bad for selling it so I'll just give it away when i get my turboXS
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