vdubnation
Turboman
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« Reply #30 on: March 07, 2013, 11:05:43 AM »
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I swapped out 2 n75's both brand new OEM gonna get maybe a aftermarket race one to see if anything changes the turbo has less than 500 miles
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ddillenger
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« Reply #31 on: March 07, 2013, 11:06:59 AM »
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Get a pressure regulator and an external air source and verify the opening pressure. Till then, any speculation is a waste of time.
That, and race valves cause more trouble than they're worth without completely redoing the PIDS.
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« Last Edit: March 07, 2013, 11:08:44 AM by ddillenger »
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nyet
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« Reply #32 on: March 07, 2013, 11:08:49 AM »
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Looks like 17 to me.
With the throttle HALF CLOSED no less. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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ddillenger
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« Reply #33 on: March 07, 2013, 11:09:57 AM »
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With the throttle HALF CLOSED no less.
It's obvious the wastegate is cranked down and not opening. Another case of trying to tune around hardware problems. |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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phila_dot
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« Reply #34 on: March 07, 2013, 12:01:10 PM »
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Good ol Frankenturbo wastegates.
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ddillenger
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« Reply #35 on: March 07, 2013, 12:05:02 PM »
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It never ceases to amaze me that people don't verify the preload and check for interference before installation. It's so easy to do before assembly, but once the turbo(s) are/is in, it's a real PITA.
(Not directed at you Mickey, just 1,000 other people have done the same thing)
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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airtite
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« Reply #36 on: March 07, 2013, 12:05:51 PM »
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Good ol Frankenturbo wastegates.
could you explain? I have no experience with the frankenturbos but would love to know what wastegate issues they have? |
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ddillenger
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« Reply #37 on: March 07, 2013, 12:11:38 PM »
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could you explain? I have no experience with the frankenturbos but would love to know what wastegate issues they have?
I wouldn't say it's specific to FT's, just these issues constantly pop up after aftermarket turbos are installed without checking wastegate preload or verifying the actuator can move without interference. There are 10 page threads on AZ dealing with the same thing before the people who told the OP to check the goddamn wastegates are vindicated. The moral of this story is NEVER leave something like this to chance. Check,and recheck before attempting to tune anything. |
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« Last Edit: March 07, 2013, 12:31:57 PM by ddillenger »
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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DDillenger84(at)gmail(dot)com
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vdubnation
Turboman
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« Reply #38 on: March 07, 2013, 12:16:33 PM »
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just talked to the previous owner he never checked it due to the turbo coming with a inspection sheet saying 8psi figures lol
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Gonzo
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« Reply #39 on: March 07, 2013, 03:18:51 PM »
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Good ol Frankenturbo wastegates.
QFT |
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« Last Edit: March 07, 2013, 08:17:56 PM by Gonzo »
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airtite
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« Reply #40 on: March 17, 2013, 02:53:00 AM »
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did you manage to sort this out?
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vdubnation
Turboman
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« Reply #41 on: March 17, 2013, 08:15:04 AM »
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Ran a pressure regulator to the wastegate of both of my cars both have f21's (a4 & s4) and the waste gates on both started opening around 15-17 psi should have both set to 10 psi this week been crazy busy at the shop
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