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Old 04-19-2014, 07:13 AM   #201
ride5000
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Originally Posted by Artizle View Post

No... Maybe I'm doing it wrong. At what voltage is the TGV fully open?
I cant remember off the top of my head. All I know is that I reflashed the rom back to one that used tgvs, made sure the car was idling hot with the valves open via rr, went under the hood and unplugged both tgv motors, shut off the car, and flashed carberry back on. The motors never got plugged back in, or taken off the shafts. The only thing that was touched was the wiring harness.

If you've ever held an assembled tgv assembly in your hands and tried to move the butterflies you'd see my point that the valves snapping shut all by themselves is pretty much impossible.

perhaps the motors got some kind of electrical signal in the cars that have shown the issue? idk. All I know is that I run a lot of boost and I have never had them move.
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Old 04-24-2014, 02:04 PM   #202
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I cant remember off the top of my head. All I know is that I reflashed the rom back to one that used tgvs, made sure the car was idling hot with the valves open via rr, went under the hood and unplugged both tgv motors, shut off the car, and flashed carberry back on. The motors never got plugged back in, or taken off the shafts. The only thing that was touched was the wiring harness.

If you've ever held an assembled tgv assembly in your hands and tried to move the butterflies you'd see my point that the valves snapping shut all by themselves is pretty much impossible.

perhaps the motors got some kind of electrical signal in the cars that have shown the issue? idk. All I know is that I run a lot of boost and I have never had them move.
Looks like it's working so far, I let it get nice and warm, took it for a drive and unplugged them.
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Old 05-24-2014, 12:26 AM   #203
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Hey guys, Ive been trying to see some of the changes in 3.8 vs older. Where do you set the air calc mode IE MAF SD or Blend? I didnt see it.

I am interested in taking a current rom and making it a carberry MAF rom while I build a VE table from logging.

Does load/kpa = ve here? Thats how we were doing the evo stuff quick and dirty. I jumped to a Vi-PEC with my evo though
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Old 05-24-2014, 06:08 AM   #204
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make sure your editor is using the latest defs
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Old 05-24-2014, 08:20 AM   #205
Dubstar112
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Did that; do I need to modify the cars def XML or can I just add the 3.8 XML location parallel to that?

What section would this parameter be in?

I'm using the speed density base . Hex . Bak file is that appropriate as well?

Thank you for the helps.
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Old 05-24-2014, 10:58 AM   #206
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Originally Posted by Dubstar112 View Post
Did that; do I need to modify the cars def XML or can I just add the 3.8 XML location parallel to that?

What section would this parameter be in?

I'm using the speed density base . Hex . Bak file is that appropriate as well?

Thank you for the helps.
no, the bak file is the un-carberry patched original grp n SD rom.
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Old 05-24-2014, 03:30 PM   #207
Dubstar112
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god im a fool.

spanks!

How do you figure anti lag behaves when on MAF? is the load going to climb and exceed any thresholds?

Last edited by Dubstar112; 05-24-2014 at 03:37 PM.
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Old 05-25-2014, 05:56 AM   #208
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I've been running MAF based carberry for a month or two and have a few questions that i've asked before but romraider can be very slow to get answers.

is it a definate that injector timing needs to be at 360* for the entire table for a non-avcs wrx.

is there any way i can bring up some more tables for decel like timings ect

i'd also like to be able to edit timings for when the car switches to idle timing on decel

it would be nice to be able to stay in the main fuel and timing tables for a secound or two on decel. it may give some nice afects to gear changes giving you antilag style gear changes without having to run full antilag. like a soft antilag that evo's have.
this may be where i get
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Old 05-26-2014, 10:23 AM   #209
Dubstar112
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Ok, if I want to run MAF but the axis are still in PSI what do I need to do in order to use airflow and not PSI? Also what then does the VE table accomplish when no SD is running? Im looking for a bit of knowledge on the (maf/sd) blending too. Thank you guys!
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Old 05-27-2014, 09:56 AM   #210
ride5000
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Ok, if I want to run MAF but the axis are still in PSI what do I need to do in order to use airflow and not PSI?
you can't.

some careful logging will show that engine load and MAP are basically lock-step, so you don't need to.

Quote:
Also what then does the VE table accomplish when no SD is running?
if in 100% maf mode, then nothing.

Quote:
Im looking for a bit of knowledge on the (maf/sd) blending too. Thank you guys!
the maf/sd blend ratio defines how much weight each of the methods to arrive at engine load (ie, x number of grams of air mass in the chamber) will be used to achieve a final number.

ie, 50% blend, sd load is 1.5g, maf load is 2g, final load for fueling calc = 1.75g.

hth
ken
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Old 05-28-2014, 01:43 AM   #211
Dubstar112
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sure does help. I was looking for more indepth knowledge as to circumstances which warrant each method, and what the goal is ( aside from calcuating load)

However I think if I decide to go that route, I will see the difference.

You say that engine load and MAP are a lock- Coming from my evo ecu they are not a static link, esp in a situation where you hold 20psi to redline, load (obviously peaks- generally just before torque) then tapers very rapidly even when the manifold PSI is holding. So forgive me if I have a hard time understanding a solid link, albeit the load calc in this rom is obviously quite different than what Im used to. And your answer likely is better understood in practice.

thanks!
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Old 05-28-2014, 07:44 AM   #212
ride5000
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Originally Posted by Dubstar112 View Post
sure does help. I was looking for more indepth knowledge as to circumstances which warrant each method, and what the goal is ( aside from calcuating load)
there are some mechanical setups (cam related) that make calculation of VE extremely difficult: AVCS and/or high overlap configurations.

at idle and/or off throttle these can be nearly impossible to stabilize due to intake charge passthrough and/or reversion.

the maf blend ratio can allow one to fall back on the actual (extrapolated) mass air flow rate which more accurately reflects the cylinder load.

secondarily if one runs full maf you can leverage the other benefits of the carberry rom (nlts, lc, antilag, etc) while not jumping over to speed density.

Quote:
You say that engine load and MAP are a lock- Coming from my evo ecu they are not a static link, esp in a situation where you hold 20psi to redline, load (obviously peaks- generally just before torque) then tapers very rapidly even when the manifold PSI is holding. So forgive me if I have a hard time understanding a solid link, albeit the load calc in this rom is obviously quite different than what Im used to. And your answer likely is better understood in practice.
no, of course they are not precisely and simply related: that's why the VE table (and the IAT/port temp comp table) are necessary. i did say "basically lock-step."

but when you look at the rom and what maps are defined via MAP that would be used in a MAF load based scenario, it's a moot point: you have the primary open loop fuel target and you have base ignition timing. both of those can arguably be linked directly to MAP with excellent results even if the injector pulse width is ultimately determined by MAF.

that said i would absolutely relocate my IAT sensor to post IC so that the temperature compensations for ignition timing have a more useful effect, regardless of whether or not i was intending to run SD or MAF.
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Old 05-29-2014, 05:59 AM   #213
Artizle
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is it a definate that injector timing needs to be at 360* for the entire table for a non-avcs wrx.
Wow good call I can't believe I completely overlooked that... I wonder if this is why I am getting worse fuel economy on carberry...
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Old 05-29-2014, 01:19 PM   #214
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Wow good call I can't believe I completely overlooked that... I wonder if this is why I am getting worse fuel economy on carberry...
So far I've been running 360* for a week now and all seems fine
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Old 06-02-2014, 03:50 AM   #215
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Anti lag 'injector duty idle'?
I presume this is the injector duty while in decel fuel cut (over run)?
If so what is the injector duty under normal conditions while in fuel cut? I'm guessing about 2%ish.
The reason i'm asking is i just want to run a very soft anti lag more for the effects on gear changes ext. and have it switchable.
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Old 06-02-2014, 04:08 AM   #216
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Originally Posted by daverst View Post
So far I've been running 360* for a week now and all seems fine
My fuel economy and driveability have definitely increased. 360* is the correct amount for non AVCS USDM WRX.
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Old 06-23-2014, 01:30 AM   #217
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Does Carberry use 2nd lambda? I'd like to use this location for wideband.
Is it the same as front lambda?
Can I use it as a replacement for the 1st/front lambda?
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Old 06-24-2014, 09:52 PM   #218
ride5000
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Quote:
Originally Posted by daverst View Post
Does Carberry use 2nd lambda? I'd like to use this location for wideband.
Is it the same as front lambda?
Can I use it as a replacement for the 1st/front lambda?
you do not need a rear o2 sensor to run carberry
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