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Old 07-01-2012, 05:39 PM   #1
11SubieWRX4D
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Default Stage 1 ACN91 Normal Wastegate Log

This is the result of the log with Stage 1 ACN91 Normal WG.

https://docs.google.com/spreadsheet/...FRGTHJjY3FXcEE

From the looks of it, its similar to nappynick's 1st run. Do you agree that I also need ACN91 HWG?
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Old 07-01-2012, 05:42 PM   #2
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doesn't look like you need the HWG map, but I cannot remember what the stg 1 peak boost target is for an '11.
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Old 07-01-2012, 06:02 PM   #3
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This is the result of Stage 1 ACN91 High Wastegate

https://docs.google.com/spreadsheet/...TR1S2FQYl91YUE

According to COBB:

Quote:
Boost Targets: ~14.5psi peak boost pressure tapering down to ~12.5psi by the 7000 RPM redline, +/- 0.8psi.
It looks like i'm right on target with the High Wastegate.

Last edited by 11SubieWRX4D; 07-01-2012 at 06:08 PM.
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Old 07-01-2012, 11:30 PM   #4
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Quote:
Originally Posted by 11SubieWRX4D View Post
This is the result of Stage 1 ACN91 High Wastegate

https://docs.google.com/spreadsheet/...TR1S2FQYl91YUE

According to COBB:



It looks like i'm right on target with the High Wastegate.
Log looks good with the HWG map. Enjoy!

Bill
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Old 07-02-2012, 05:32 PM   #5
11SubieWRX4D
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Thanks for checking it out. You have other feedback from the log besides the target boost?
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Old 07-03-2012, 09:15 AM   #6
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Quote:
Originally Posted by 11SubieWRX4D View Post
Thanks for checking it out. You have other feedback from the log besides the target boost?
Log looks good not just from the boost control side.

Bill
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Old 07-03-2012, 05:25 PM   #7
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Cool deal. Thanks!
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Old 07-07-2012, 01:29 PM   #8
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A week from my 1st Log, it looks like the boost has exceeded the target. Should i switch down to normal wastegate? Or is it normal for boost to go up and stick to HWG?

https://docs.google.com/spreadsheet/...nUwYkR2czRldkE
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Old 07-08-2012, 09:54 AM   #9
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Quote:
Originally Posted by 11SubieWRX4D View Post
A week from my 1st Log, it looks like the boost has exceeded the target. Should i switch down to normal wastegate? Or is it normal for boost to go up and stick to HWG?

https://docs.google.com/spreadsheet/...nUwYkR2czRldkE
No, your fine. You want to be within +/- 1 psi of your target and you are good. I would just watch the boost when it starts to get cold out (take a few more logs then).

Bill
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Old 07-15-2012, 02:31 AM   #10
11SubieWRX4D
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Looks to be consistent after 2 weeks from 1st run. Guess gonna wait until winter and start logging again.

https://docs.google.com/spreadsheet/...245b0dsR25MTEE
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Old 07-15-2012, 10:06 AM   #11
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Originally Posted by 11SubieWRX4D View Post
Looks to be consistent after 2 weeks from 1st run. Guess gonna wait until winter and start logging again.

https://docs.google.com/spreadsheet/...245b0dsR25MTEE
Looks good.

Bill
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Old 01-08-2013, 12:07 AM   #12
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Looks like during the winter time i have to switch to Normal WG.

Do you agree Bill?

https://docs.google.com/spreadsheet/...0VMY1ZNWlR3X3c
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Old 01-08-2013, 09:52 AM   #13
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Quote:
Originally Posted by 11SubieWRX4D View Post
Looks like during the winter time i have to switch to Normal WG.

Do you agree Bill?

https://docs.google.com/spreadsheet/...0VMY1ZNWlR3X3c
This log looks fine so I would say use the NWG map in the winter. HWG may be OK (would have to see log with colder temps), but these cars can see a lot of airflow at cold temps so being on the more conservative side is better.

Bill
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Old 01-08-2013, 02:56 PM   #14
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Ok, ill see if I can do another test log with hwg and see if there's a huge difference.
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Old 01-12-2013, 04:54 PM   #15
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Here is my log for HWG 53F degrees during the winter time. It looks like I can use HWG as well. Although it will be short lived since I'm going Stage 2 tomorrow (Catted DP and Catback exhaust). But here's the log anyway

https://docs.google.com/spreadsheet/...WctZzhMT2pnM2c
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Old 01-13-2013, 10:30 AM   #16
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Quote:
Originally Posted by 11SubieWRX4D View Post
Here is my log for HWG 53F degrees during the winter time. It looks like I can use HWG as well. Although it will be short lived since I'm going Stage 2 tomorrow (Catted DP and Catback exhaust). But here's the log anyway

https://docs.google.com/spreadsheet/...WctZzhMT2pnM2c
Just be careful with colder temps. Of course, things could be completely different at stage 2 level - so you will need to do new logs when you make the transition.

Bill
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Old 01-13-2013, 10:38 PM   #17
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Stage 2 Normal Wastegate

https://docs.google.com/spreadsheet/...Wo5M0puU0ZiNHc

Yikes, seems way to low in boost. Agree i have to switch to HW?

One thing to consider, i currently do not have a heat shield installed since I was not aware that the dp will require an aftermarket, i ordered a heatshield but will not arrive for 2-3 days. Should I leave it in Normal wastegate to be more conservative and not increase the heat?

Last edited by 11SubieWRX4D; 01-13-2013 at 10:52 PM.
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Old 01-14-2013, 10:00 AM   #18
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Quote:
Originally Posted by 11SubieWRX4D View Post
Stage 2 Normal Wastegate

https://docs.google.com/spreadsheet/...Wo5M0puU0ZiNHc

Yikes, seems way to low in boost. Agree i have to switch to HW?

One thing to consider, i currently do not have a heat shield installed since I was not aware that the dp will require an aftermarket, i ordered a heatshield but will not arrive for 2-3 days. Should I leave it in Normal wastegate to be more conservative and not increase the heat?
Boost is a little soft in this log. I think you can give the HWG map a try. Not having the heatshield on the car for a few days isn't going to matter that much unless you are doing a lot of idling or slow driving followed by heavy throttle pulls (i.e. any scenario where heat soak could be a problem followed by aggressive driving).

Bill
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Old 01-14-2013, 10:03 AM   #19
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Thanks Bill, I know I can always depend on you. Do you know why my boost is way too soft and during winter? Will it be an issue during the summer when I can't go over high wastegate and under boost will be an issue? Is this a normal occurrence?

Last edited by 11SubieWRX4D; 01-14-2013 at 10:09 AM.
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Old 01-14-2013, 10:09 AM   #20
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Quote:
Originally Posted by 11SubieWRX4D View Post
Thanks Bill, I know I can always depend on you. Do you know why my boost is way too soft? Is this a normal occurrence?
There are a lot of variations between different cars, different downpipes, and sometimes the conditions the cars is driven under (altitude, outside temp, etc.). So, most cars are good with the normal wastegate map, while other underboost or overboost, which is why we supply the hwg and lwg maps.

Bill
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Old 01-16-2013, 02:33 AM   #21
11SubieWRX4D
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Ok, here is my log with Stage 2 HWG ACN1. Looks good? Should i also be concerned about the feedback knock?

https://docs.google.com/spreadsheet/...DAxXzF2UFpRS0E
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Old 01-16-2013, 10:14 AM   #22
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Did an incomplete log since i hit traffic this morning . I only got up to 4300 RPM.

https://docs.google.com/spreadsheet/...UIxNE1HYXZxeEE

Looks good in the beginning, but would like to go up to 7000 RPM to ensure no knock comes up.

My log above had knocks during low RPM. Chance that i would see that again?
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Old 01-16-2013, 11:42 AM   #23
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You have a couple of threads with the same logs - I would stick to one of them as it gets confusing to follow the info in both threads at the same time.

Bill
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Old 01-16-2013, 01:38 PM   #24
11SubieWRX4D
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Yea sorry. I'll continue on the other log since I'm already on Stage 2.
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