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Old 04-09-2013, 06:56 PM   #1
jacob80
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Default Version 8 Swap - Please analyze my log !

Hey guys,

Just swapped in my Version 8, trans, rear end, axles, and hubs into my 2002 WRX. This is a stock motor with an AEM cold air intake and stock downpipe flared out to a 3" cat-less exhaust.

I'm extremely worried about driving my car with this base map, considering the fact that I've seen a -4.22 FLKC value is not good. Obviously the map isn't perfect, so I'd like you guys to take a look at my log / learning view to see where you think it could use some improvement.

Current Tune (91 octane) :

http://www.romraider.com/forum/viewt...hp?f=27&t=7019

Log file (very mild driving) :

https://docs.google.com/file/d/0B4rU...E0WVg0dU0/edit

Confirming 91 Octane Map :



Learning view :



Fuel :

These logs were recorded with a mixture 93 octane fuel with 10% ethanol and straight 91 octane in Nebraska.

Weather :

50 - 60 degree weather when log was taken.

What I think:

The car runs great ! However, I'm not going to take any risks and would like to get the kinks in this map worked out as soon as possible. I wouldn't expect the knock correction to have to correct as much as it is (-4.22 timing decrease) when others have had good luck with this map. Perhaps this is normal for a base map ? I've taken the car on 4 - 5 high RPM pulls, but don't feel comfortable doing so until I work out these issues.
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Last edited by jacob80; 04-10-2013 at 01:45 AM.
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Old 04-09-2013, 08:02 PM   #2
quazimoto
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Find a professional tuner. It's that simple. If you have to ask what needs to be done then you are in over your head.
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Old 04-09-2013, 08:42 PM   #3
jaxscuby
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where, who did you get this map from?

i would not advise to have the same high boost in lower throttle %.

you need to find a reputable tuner and retune this rom file.
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Old 04-09-2013, 08:47 PM   #4
jacob80
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Quote:
Originally Posted by jaxscuby View Post
where, who did you get this map from?

i would not advise to have the same high boost in lower throttle %.

you need to find a reputable tuner and retune this rom file.
Please read the post.
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Old 04-09-2013, 11:01 PM   #5
dux10
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Just the fact that so many important tables are greyed out shows that you haven't touched enough tables to make it safe....

Email me the rom and map and I'll take a look.
boostaddict79@gmail.com

Steve@Pullz-On Tuning
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Old 04-10-2013, 01:18 AM   #6
Airboy
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Quote:
Originally Posted by dux10 View Post
Just the fact that so many important tables are greyed out shows that you haven't touched enough tables to make it safe....
Pretty sure he is just using a base map from romraider.com and not tuning it himself, hence the settings in ecuflash.
OP, the link to your log file just goes to the thread with the base map.
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Old 04-10-2013, 01:47 AM   #7
jacob80
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Quote:
Originally Posted by Airboy View Post
Pretty sure he is just using a base map from romraider.com and not tuning it himself, hence the settings in ecuflash.
OP, the link to your log file just goes to the thread with the base map.
Thank you sir, fixed.

Yes, this is a base map that I am DD'ing at the moment VERY gently. I'm not about to risk anything here.

If someone could give some feedback, I would appreciate it.

Thank you.
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Old 04-10-2013, 07:41 AM   #8
quazimoto
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Quote:
Originally Posted by jacob80 View Post
Thank you sir, fixed.

Yes, this is a base map that I am DD'ing at the moment VERY gently. I'm not about to risk anything here.

If someone could give some feedback, I would appreciate it.

Thank you.
Okay so what "feedback" are you looking for? Are you looking for someone to tell how you to tune? The IAM is 15 when it should be 16. This indicates an issue. Using that intake without verifing your Openloop fueling is another issue. Most intakes require rescaling of the MAF parameters. The ECU is removing a ton of fuel in the "A" range. Read:
http://www.romraider.com/forum/viewt...hp?f=33&t=5371
http://www.romraider.com/forum/viewt...hp?f=33&t=6156
http://www.romraider.com/forum/viewt...hp?f=33&t=5384
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Old 04-10-2013, 12:12 PM   #9
Concillian
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The log is up on romraider.

His learned knock is at ~1.0 g/s at crusing RPMs.

This is right when the stock ROM turns on FLKC and FBKC, so there could be some issues below that too. On 91, it's definitely sensitive in that area and the ROM you're using does have some funkiness in the total timing like he smoothed the timing map without concern for the KCA map. Total timing takes funny jumps right where he changes KCA. So it wouldn't surprise me if it's sensitive in some low load areas. High load looks conservative enough on timing to me that it "shouldn't" be knocking.

Sometimes on 91, it just can't take the 40 degrees of AVCS being requested in cruise loads. This is primarily for emissions / EGR, so I'd start by lowering AVCS advance in those cells. It's pretty obvious what I'm talking about if you look in the AVCS map. If that doesn't help, then adjust ignition timing down a little too.

Overall what you're seeing isn't something I'd be overly concerned about. It's being learned around and at these loads shouldn't be doing much in the way of long term damage.

Last edited by Concillian; 04-10-2013 at 12:24 PM.
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Old 04-10-2013, 03:06 PM   #10
jacob80
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Thank you for your input. I'm a big Megasquirt geek, and I've never worked with Romraider prior to this swap, so bare with me. As far as tuning and familiarity with the software, yes I'm very green and unfamiliar with the system, but I wouldn't say I'm in over my head. I'm very excited to learn.

I'd like to hear more input and what kind of changes you all would suggest. I've never tuned a car with variable valve timing, so it's interesting to know there is a dedicated table for AVCS.
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Old 04-10-2013, 05:28 PM   #11
quazimoto
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Old 04-10-2013, 05:33 PM   #12
Concillian
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For power tuning of AVCS, it's kind of a pain. It will affect fueling some too, so you need to pick some AVCS map, tune it, then go up / down a few degrees and see if VE improves. Then fine tune the MAF scaling for fueling adjustment. There's a thread on Romraider for how to calculate VE and also a logger definition for adding it to the logging parameters.

In general at WOT it will want lots of advance during spool, this will help engine airflow and get the turbo spooled up fastest, then you'll want to start bringing the advance back as RPM rises. A lot of this depends on turbo, I'm not using the stock turbo, but it's not too far off in ariflow.
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Old 04-11-2013, 12:25 AM   #13
jacob80
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Quote:
Originally Posted by Concillian View Post
For power tuning of AVCS, it's kind of a pain. It will affect fueling some too, so you need to pick some AVCS map, tune it, then go up / down a few degrees and see if VE improves. Then fine tune the MAF scaling for fueling adjustment. There's a thread on Romraider for how to calculate VE and also a logger definition for adding it to the logging parameters.

In general at WOT it will want lots of advance during spool, this will help engine airflow and get the turbo spooled up fastest, then you'll want to start bringing the advance back as RPM rises. A lot of this depends on turbo, I'm not using the stock turbo, but it's not too far off in ariflow.
Sounds like you really have to know what you're doing - which I do not as far as that is concerned. In due time, though !

I enjoy the feedback, keep it coming !
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