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Old 02-07-2018, 01:48 PM   #1
GroceryGTIer
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K04 owners what psi do you peak and hold?

Right now I can peak about 25 and hold 18-20 to redline. I'm wondering what everyone else is getting?
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Old 02-07-2018, 01:51 PM   #2
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I haven't driven mine since october but usually peak 28-29 and hold about 26 or so. APR does request more boost though in place of pulling timing like other tunes.

Keep in mind during cold winter your car will actually boost less psi because the air is more dense.
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Old 02-07-2018, 02:00 PM   #3
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Originally Posted by jay745 View Post
I haven't driven mine since october but usually peak 28-29 and hold about 26 or so. APR does request more boost though in place of pulling timing like other tunes.

Keep in mind during cold winter your car will actually boost less psi because the air is more dense.
Which IC are you running?
Edit: looked at your build thread, still on the neuspeed?
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Old 02-07-2018, 02:03 PM   #4
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Which IC are you running?
Edit: looked at your build thread, still on the neuspeed?
I just sold the neuspeed a few weeks ago. I'm putting a eurojet sandwich mounted ic in now. Only reason for making the switch is because I'm adding an external oil cooler and needed the space for it up front. There was no way to mount it with the neuspeed ic being there.
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Old 02-07-2018, 02:05 PM   #5
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I just sold the neuspeed a few weeks ago. I'm putting a eurojet sandwich mounted ic in now. Only reason for making the switch is because I'm adding an external oil cooler and needed the space for it up front. There was no way to mount it with the neuspeed ic being there.
Oh ok, so these numbers are on the neuspeed then?
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Old 02-07-2018, 02:07 PM   #6
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Oh ok, so these numbers are on the neuspeed then?
yes, I haven't driven it yet with the eurojet IC installed. I don't think it'll change all that much though.
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Old 02-07-2018, 02:10 PM   #7
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yes, I haven't driven it yet with the eurojet IC installed. I don't think it'll change all that much though.
I see, that seems to be a fair amount of psi for that turbo. I'm running a wagner, but I swear I must have a leak because only holding 20 seems really low to me.
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Old 02-07-2018, 02:14 PM   #8
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I see, that seems to be a fair amount of psi for that turbo. I'm running a wagner, but I swear I must have a leak because only holding 20 seems really low to me.
What tune do you have? I have a few friends with k04's on varying tunes, all of our cars run fairly the same (none being significantly faster than the other) but the boost psi is all over the place based on which tune. Some companies advance timing to achieve the same results as apr gets by adding psi.
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Old 02-07-2018, 03:45 PM   #9
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APR 3.1 Tune- Peak 28-29 psi, hold 21-22 redline
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Old 02-07-2018, 04:05 PM   #10
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What tune do you have? I have a few friends with k04's on varying tunes, all of our cars run fairly the same (none being significantly faster than the other) but the boost psi is all over the place based on which tune. Some companies advance timing to achieve the same results as apr gets by adding psi.
I went from DM to UM's tune. Supposed to peak at 23-25.
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Old 02-07-2018, 04:19 PM   #11
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I went from DM to UM's tune. Supposed to peak at 23-25.
It's probably just the cold air causing it to read a little less psi. Run logs often to see if it's running lean. I know of a few cars that have gotten badly damaged from UM running too lean.
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Old 02-07-2018, 04:39 PM   #12
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It's probably just the cold air causing it to read a little less psi. Run logs often to see if it's running lean. I know of a few cars that have gotten badly damaged from UM running too lean.
I can smell, and see a lot of gas in my cc, which leads me to believe either I need a carbon cleaning, have a bad injector, or clogged injector. Also have high rpm misfires
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Old 02-07-2018, 05:39 PM   #13
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I'm on Apr tune as well and mine also has a high 20s spike but holds pretty low 20s to redline. Runs strong was a pretty close match to Jay's car
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Old 02-07-2018, 05:44 PM   #14
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I'm on Apr tune as well and mine also has a high 20s spike but holds pretty low 20s to redline. Runs strong was a pretty close match to Jay's car
Close match? Thought dsg's were supposed to be faster?

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