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Old 12-02-2013, 05:05 PM   #1
lookylookitzadam
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Default Datalog Help - Please look at my pull

Hi everyone.

I am not getting any knock, but the car feels really slow. Maybe my hopes were too high, but it feels about the same (possibly even slower) than my stage 1 flash.

Car is a 2013 WRX running TP Stage2, stock airbox and SPT exhaust with an invidia catted downpipe.

I feel like I am missing something here because comparing this to other logs, my 40-75mph times are about 1.5 seconds slower than the average I have seen on the forums.

I have sent the log to Eric and am awaiting his response, but also wanted to see what everyone else thinks.

Thanks,
Adam


Datalog: https://docs.google.com/spreadsheet/...Hc&usp=sharing
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Old 12-02-2013, 06:46 PM   #2
BeastianSTI
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Doesn't look like you're running much timing at peak tq. Not an expert though
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Old 12-02-2013, 07:27 PM   #3
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That was my thought, my timing looked about 1-2* low but I wasn't sure.
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Old 12-03-2013, 10:39 AM   #4
wgr73
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Next time start your pull around 2k-ish. Could add some timing, and could also lean afr out some at peak torque (10.9-11.0).

91oct or 93 oct?
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Old 12-03-2013, 04:17 PM   #5
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I would assume 91 for CA.
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Old 12-03-2013, 04:37 PM   #6
lookylookitzadam
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Hey Guys, I have been working with Eric of TP and he has been very helpful with all his revisions. Im just worried because it seriously feels slower than stage 1.

It is on 91 gas since thats all we get in CA.

Few people have messaged me saying that it might be a boost leak or possibly low compression (ringlands?) but I am not sure.

Wouldnt a boost leak show up on the log? Also, a cracked ringland would smoke and stumble I assume, but that isnt an issue.

Attached another log from my latest map revision. I wasnt able to get a full pull, but can later.

https://docs.google.com/spreadsheet/...lE&usp=sharing
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Old 12-03-2013, 05:25 PM   #7
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Are you comparing Eric's Stage 2 tune to another tuner's Stage 1? What you are feeling is how the torque comes on. Some tuners tune for more punch and some more linear sling shot feel.
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Old 12-03-2013, 05:33 PM   #8
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It's about as close as you're gonna get for an off the shelf tune. A custom tune might clean up some small AFR variation, maybe get an extra degree of timing or two, but an off the shelf tune has to leave some margin for car to car variations.

You're getting peak boost around 3000, that's not terrible. Datalog your other tune. It may not be as different as you think it is.
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Old 12-03-2013, 06:17 PM   #9
lookylookitzadam
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Been working with Eric on all my tunes since his customer service and reputation are second to none. My initial impressions were that it was a bit slower so I started comparing my stage 1 logs, 40-75 with that of stage 2 since they are all 3rd gear pulls under similar conditions and was coming up with about a 1.5 seconds slower time with stage2. Figured I would post here to see if that was normal or possibly I was just expecting a huge difference over stage1.
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Old 12-04-2013, 01:23 PM   #10
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Updated Log. I am thinking of going back to stage 1 since it was faster for some reason....
(going from 45-70 via timestamps on the logs)

Any ideas as to what it could cause a loss of power, while still achieving boost targets?

https://docs.google.com/spreadsheet/...0E&usp=sharing
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Old 12-04-2013, 01:34 PM   #11
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Quote:
Originally Posted by lookylookitzadam View Post
Updated Log. I am thinking of going back to stage 1 since it was faster for some reason....
(going from 45-70 via timestamps on the logs)

Any ideas as to what it could cause a loss of power, while still achieving boost targets?

https://docs.google.com/spreadsheet/...0E&usp=sharing
Yeah. Not enough timing / boost. Have you mentioned this to your tuner? He would be the one that can provide you with the answers / actually help you.
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Old 12-04-2013, 01:41 PM   #12
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Quote:
Originally Posted by BeastianSTI View Post
Yeah. Not enough timing / boost. Have you mentioned this to your tuner? He would be the one that can provide you with the answers / actually help you.
Boost doesn't seem too bad to me, other than hitting really really late (leak?). His afr is pretty rich, that's for sure.
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Old 12-04-2013, 04:36 PM   #13
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Quote:
Originally Posted by BeastianSTI View Post
Yeah. Not enough timing / boost. Have you mentioned this to your tuner? He would be the one that can provide you with the answers / actually help you.
Yep, I have mentioned it to him and he isn't sure whats up because everything looks alright in the logs and says the power should be there. My problem is that it is a significant downgrade from stage1. I am going to check for boost leaks and possibly exhaust leak this weekend. I am quite puzzled by this whole thing.
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Old 12-04-2013, 04:42 PM   #14
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Quote:
Originally Posted by wgr73 View Post
Boost doesn't seem too bad to me, other than hitting really really late (leak?). His afr is pretty rich, that's for sure.
I was thinking it was a leak, but would I still be able to achieve that much boost with a leak? I figured since they MAP on the TB, if there was a leak I would be missing target levels. Although, now you got me thinking, maybe I am missing target boost levels but still achieving peak boost levels.

For instance, say I am supposed to be at 18psi by 3200rpm, but I am only at 16psi. Can it then keep building up to 20psi but because of a leak display 18psi later in the powerband? Not sure if this makes any sense....
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Old 12-04-2013, 07:01 PM   #15
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^^^Log TD boost error and see. It's also a really good idea to do a boost leak test anytime that you add parts that require removal of your intercooler. 10.1 to 10.2 AFR is probably richer than what Eric's fueling targets are too. A boost leak could cause that.
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Old 12-04-2013, 08:25 PM   #16
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^^^Log TD boost error and see. It's also a really good idea to do a boost leak test anytime that you add parts that require removal of your intercooler. 10.1 to 10.2 AFR is probably richer than what Eric's fueling targets are too. A boost leak could cause that.
Ill give it a shot. I didnt pull the intercooler for the downpipe install, but I am going to pull it this week to take a look at that IC to TB hose. In the meantime, I will log Boost Error
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Old 12-04-2013, 08:29 PM   #17
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Quote:
Originally Posted by lookylookitzadam View Post
I am going to pull it this week to take a look at that IC to TB hose. In the meantime,
Yep, that one has been known to cause issues. Some folks ditch the rubber inserts and reassemble without them. Spray some cheap hairspray on the hose ends and it will keep them from popping off.
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Old 12-04-2013, 08:38 PM   #18
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I already ordered T-Bolt clamps, but until they get here I will pull the inserts out and use the worm drive ones I have. Looking through the parameters in my logger, It seems my only option for logging target boost is "Target Intake Manifold Pressure" I assume this one will give me the psi value that the map has at any given range and I can compare it to my corrected manifold pressure.
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Old 12-04-2013, 09:35 PM   #19
nmlittlebigman
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Romraider should have a parameter for "Boost Error" but I am not familiar with the '13's and whether or not it is a defined parameter for your car.
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Old 12-05-2013, 02:47 AM   #20
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It's an extended parameter so it showed up once it was connected to the car,I have the logs and will post in the morning.my laptop died and the charger is at work
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Old 12-05-2013, 04:21 PM   #21
lookylookitzadam
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new data log. Some timing was pulled as a result of this log to help with the knock. If the intercooler fix doesn't help this, I am going to pull the downpipe, install all new gaskets inspect for leaks and start all over to see. I think I will also check compression while I am at it.

https://docs.google.com/spreadsheet/...kE&usp=sharing
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Old 12-07-2013, 11:02 PM   #22
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pulled the intercooler, and what do you know...crushed end pieces. Reinstalled it all with tbolt clamps. Now I just gotta wait for Eric to get back to me with an updated tune. AFRs went from 10.1 to 10.7-8 in the same range during pulls. I think that was messing some stuff up.
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Old 12-08-2013, 01:32 PM   #23
BeastianSTI
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Yup ! Glad you figured it out. Boost leaks are tricky, even if only partially manifesting themselves
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Old 12-09-2013, 12:48 AM   #24
lookylookitzadam
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hmmmm, its gotta be something else. Car still feels terribly slow. Maybe i'll just have to protune?
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Old 12-09-2013, 03:25 AM   #25
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Might have been tuned with a boost leak. Ya may need to have it reevaluated
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