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Most all of us running boost controllers run into the same thing in 3rd and 4th gear at about 6500 rpm. At 15psi at 6500 the car will just cut off and the whole thing jumps. It sucks. If I boost higher then I hit that mark earlier...sometimes as early as 6k.

I've never heard of it happening at stock boost levels though.
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I actually found a little trick with the e-01 that that stops that. I've actually (ONE TIME) cranked it to 19.3psi and and hammered it 1st through 4th. That made this local punk kid with a modded evo mr (funded by daddy) shut up for the rest of the night at the air-strip. Later I saw him peeling a few stickers of his car, lol!!!

Not sure what's going on here. Do you seriously drive it with no downpipe on the car? That probably causes alot of extra heat (~80*-100* I would think) in the engine bay, and might bubble the paint on your hood or melt plastic components. Not to mention the turbo probably spiking like crazy. Try disconnecting your battery for an hour or so. It might go away. Also make sure to run your BOV in recirc. I tried vta with the greddy rs and I remember it poping quite a bit, but I run an open stock dp...
 

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Hey what trick did you use to hold 19psi all the way?
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Well, on the e-01 I have an option to draw back on boost by a percentage once it hits a certain (set by me) psi level. I had origionally had this set too high, which was giving me some form of power cut. It was happening with 36% set opening, 40% gain, and start boost feature off (it is only applicable to high boost situations). I turned off the "safety boost-cut-back feature" and am now running it at 40% set and 43% gain. That puts me at 19.3psi. Holds great, keeps going, and comes through for me, every time.

I removed one section of the DP, as seen in this picture:



Even with just an intake and BOV I get this experience.

Again, it may not be fuel cut, but the car doesn't shut off. It 'bogs' not sureof a word to describe it but the car jerks for a split second and continues driving.

It only happens under hard acceleration (track). Or during spirted moments.

I might take a video of it someday, try to catch it.

Also, I have read and heard from many turbo drivers of various cars, that Fuel cut results from a car running too rich. Not enough fuel being delivered.
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That's exactly how I have my exhaust right now. How do you like the cold starts, especially in front of alot of domestic muscle-heads??? :D
 

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Ate Baller what kind of Boost controller are you using again? And you get 19.5psi all the way to 6500rpm? I am going to have a boost controller installed next week and have it setup on a Dyno. Just curious what Boost controoler everyone is using?
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I have the GReddy Profec E-01, Greddy's "self-proclaimed" best ebc on the market.
Here, the install is on page 2...

http://www.cardomain.com/ride/2436049

Interesting. And no fuel cut even at redline?

On the Profec there are the same settings pretty much. Set Gain being the level you want to boost. %50 puts you back around stock 15psi and then gain being how hard it tries to hold that as rpms increase.

"set gain" is where the wastegate starts to open... I've been playing around with that to see how much difference it makes. I can set a warning and the percentage it scales back also but that's usually set so high it never comes on.
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Those don't sound like the same settings I have. I have a "Set- Boost" setting which is a percentage the valve opens, I have a "Gain" setting which is descibed in the book as the rate of boost increase or boost acceleration, and I have a "Start-Boost" setting which allows you to offset the boost to not make it to the motor until it hits a certain level of boost (the book states that this is only for high boost applications so I leave it alone.
 

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The "start boost" setting holds the waistgate closed until you hit the boost level you set it at. Everywhere I have read, it says you should set it 4 psi lower than the boost level you want. For example if you want 17 psi, then you set it at 130 which equals 13 psi.
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I remember when you posted these settings a while back and I tried it. The car coughed really hard and I got a warning light from the ebc display. I quickly set it back to the way I had it and re-read the manual. The manual I have, which is translated into English from the Japanese version, clearly states that the e-01 is capable of holding upto 50-60psi and that this feature is only intended for high boost applications. I goes further to state that if you set this too close to your set-boost or gain, that it will spike uncontrollably and potentially cause damage to the engine, turbo, or the boost control solenoid. I don't know the differences between the spec II and the e-01, but that's what I read.
 
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