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Old 01-15-2012, 04:19 AM   #1
alexmartynyuk
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Default help me figure this tune out

My brother got an 05 wrx and is trying to make sure the car is driveable. The mods as far as I can visually tell: aem cai, wrapped exhaust manifold(possibly pnp'd), stock uppipe(possibly gutted because it threw a cel for p0546), invidia catless downpipe, and a no name brand exhaust which to me looks like custom work, gimmick turbo inlet, looks like a stock tdo4, sti topmount, and stock injectors that are possibly modded, and a perrin mbc. The "possible" mods I made an assumption on by looking at the map that is on the car. The injector flow scaling is 680.17cc and the latency scaling has not been changed, maf scaling is not changed either. The car hunts for idle a little bit, and was throwing a cel for p0171 and the egt code. I need to figure out what to do about the latency scaling and if I need to change anything else in the map. Here is the link to romraider that has the map attached and a recent lv:http://www.romraider.com/forum/viewt...p=75370#p75370 thank you all in advance.
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Old 01-15-2012, 09:01 AM   #2
quazimoto
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You need to figure out what brand injectors are in there.
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Old 01-15-2012, 10:29 AM   #3
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dw650's use stock latency and are blue just like stock injectors. that would be my guess.
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Old 01-15-2012, 04:12 PM   #4
alexmartynyuk
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Quote:
Originally Posted by dux10 View Post
dw650's use stock latency and are blue just like stock injectors. that would be my guess.
I will double check, but why would the flow scaling be 680.17cc?
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Old 01-15-2012, 04:35 PM   #5
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not all injectors flow exactly 650cc. Some flow more some flow less.
I have seen some tuner adjust injector scaling to get the desired AFR- something I HIGHLY disgust. If I can do it the right way for my customers, so can they...

I know for a fact that they are not modded stockers. The latency would not be the same, and they they would flow between 820-860cc...
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Old 01-16-2012, 01:17 AM   #6
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well I got a few pics of the injectors, they are the best I could do. Also I found out the turbo is not a td04. It might me a 16g, here are the part numbers: td05h 49178-01560 14412aao92 056140033.



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Old 01-16-2012, 09:31 AM   #7
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Looks like stock baby blue injectors for the 2.0L engines. That being said they could easily be DW injectors as they reuse stock cores. Without removing the turbo compressor cover and measuring the inducer/exducer you will not know what wheel size is in there.
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Old 01-16-2012, 02:54 PM   #8
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Quote:
Originally Posted by quazimoto View Post
Looks like stock baby blue injectors for the 2.0L engines. That being said they could easily be DW injectors as they reuse stock cores. Without removing the turbo compressor cover and measuring the inducer/exducer you will not know what wheel size is in there.
but it is a 16g right? That is what I was able to find when searching up the part numbers.
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Old 01-17-2012, 02:30 PM   #9
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what are you A/F learning and A/F correction for the current setup? Does the car have a wideband installed by chance? Its gonna be tough to hit the exact flow and correct A/F ratios without know whats really installed and whats going on in the engine.
Take the car to your closest tuner and have them look the car over and help you troubleshoot the problems.. You gotta find out what the issue is before it does some serious damage to your motor. Just digging in the old brain but stock wrx injectors flow less than 500cc/min but tuners do mess with the injector flow constant to achieve correct A/F but like dux said is cheating
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Old 01-17-2012, 02:45 PM   #10
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Quote:
Originally Posted by ArSoN9 View Post
what are you A/F learning and A/F correction for the current setup? Does the car have a wideband installed by chance? Its gonna be tough to hit the exact flow and correct A/F ratios without know whats really installed and whats going on in the engine.
Take the car to your closest tuner and have them look the car over and help you troubleshoot the problems.. You gotta find out what the issue is before it does some serious damage to your motor. Just digging in the old brain but stock wrx injectors flow less than 500cc/min but tuners do mess with the injector flow constant to achieve correct A/F but like dux said is cheating
I know what is on the car, except the injectors. I'm in the process of getting a wideband, i'm not sure which one I wanna get. there is a link to my romraider thread which has the lv attached and the map of the car.
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Old 01-17-2012, 03:36 PM   #11
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Quote:
Originally Posted by alexmartynyuk View Post
but it is a 16g right? That is what I was able to find when searching up the part numbers.
I couldn't find anything exact from those part numbers, but it is most likely a 16g, as that is the most common TD05 frame turbo, but it could also be something like a 68hta.

Also, those are most likely DW 650s, especially with scaling at 680, it makes sense. From what Ive seen subaru even scales their 565 injectors at 550 from the factory.
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Old 01-17-2012, 10:28 PM   #12
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Quote:
Originally Posted by alexmartynyuk View Post
I know what is on the car, except the injectors. I'm in the process of getting a wideband, i'm not sure which one I wanna get. there is a link to my romraider thread which has the lv attached and the map of the car.
AEM uego. I've experienced various widebands while tuning customers cars and the AEM is by far the best/easiest to use/datalog.
If not an AEM get an LC-1 but be prepared to calibrate it

Quote:
Originally Posted by BlazeRex View Post
I couldn't find anything exact from those part numbers, but it is most likely a 16g, as that is the most common TD05 frame turbo, but it could also be something like a 68hta.

Also, those are most likely DW 650s, especially with scaling at 680, it makes sense. From what Ive seen subaru even scales their 565 injectors at 550 from the factory.
Most of the time, injector scaling is less than the injector is actually rated at: 550<565. His are 30cc up, which is uncommon but definitely possible depending on the tuner. Plus the DW's do use the stock injector body and the 650's utilize the stock latency.
I'd feel comfortable calling them DW650's. The turbo sounds like a generic 16G of some sort. If you ask me, that's enough information to tune off of...


EDIT: I finally actually looked through your map and what a mess! The knock correction advance table is a mess, the OL fueling is way too lean, and the total timing is kinda ridiculous nevertheless when coupled with the target AFR! The MAF scaling might be so skewed because that's how the tuner achieved his desired AFR without imploding the motor....
I honestly wouldn't even start with that map to tune from....

Last edited by dux10; 01-17-2012 at 10:47 PM.
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Old 01-18-2012, 02:58 AM   #13
alexmartynyuk
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Quote:
Originally Posted by dux10 View Post
AEM uego. I've experienced various widebands while tuning customers cars and the AEM is by far the best/easiest to use/datalog.
If not an AEM get an LC-1 but be prepared to calibrate it



Most of the time, injector scaling is less than the injector is actually rated at: 550<565. His are 30cc up, which is uncommon but definitely possible depending on the tuner. Plus the DW's do use the stock injector body and the 650's utilize the stock latency.
I'd feel comfortable calling them DW650's. The turbo sounds like a generic 16G of some sort. If you ask me, that's enough information to tune off of...


EDIT: I finally actually looked through your map and what a mess! The knock correction advance table is a mess, the OL fueling is way too lean, and the total timing is kinda ridiculous nevertheless when coupled with the target AFR! The MAF scaling might be so skewed because that's how the tuner achieved his desired AFR without imploding the motor....
I honestly wouldn't even start with that map to tune from....
Yeah when I first looked at the map I didn't know what to say, well its a good map to kill an engine with. There were a whole bunch of lines going from the trunk and coming out the engine bay which looked like they were running meth or something else, but I don't think they actually ran it because the setup wasn't complete.
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Old 01-18-2012, 07:00 AM   #14
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funny you say that. the first thing i thought while looking through the map was "it looks like E85 timing and fueling." a meth kit makes sense.
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Old 01-18-2012, 02:43 PM   #15
alexmartynyuk
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Quote:
Originally Posted by dux10 View Post
funny you say that. the first thing i thought while looking through the map was "it looks like E85 timing and fueling." a meth kit makes sense.
well it does make sense but the setup wasn't complete so that map won't work unless he wants to pretend its a diesel.
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