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Old 09-19-2010, 02:54 PM   #1
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Could it be possible you're letting out LESS metered air because you tightened your BOV? And as a result, your theroetical mix isn't so far off as the actual mix to throw a code?

I think thats exactly whats going on. My BOV was set so loose when I got it when my hand was near the vent I felt air being sucked in at idle. Once its tuned they program the piggy back to ignor the mass air when U let off the throttle. This is when the BOV vents and for a moment the mass air is still reading, causing it to go very rich.
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Old 09-19-2010, 05:37 PM   #2
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You have to remember, when the you shift and close the throttle, the turbo is still spooled to an extent and is still pulling air through the MAF and out the BOV. That's why you get a rich condition. The air going through the MAF isn't going into the motor, but the ECU thinks it is and is still dumping in fuel.

There's a couple of ways around it while using a MAF. You can move it to after the BOV, or program whatever computer you're using to look at the throttle position sensor and have a base map off throttle position, using the MAF for fine adjustment rather than the only input.
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Old 09-21-2010, 06:27 PM   #3
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Anyone know if the FIC can be used with the UEGO wideband to automatically detect AFRs then correct them based on user entry? Would make things VERY easy and simple. Always the best route.
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Old 09-21-2010, 06:42 PM   #4
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Yes the AEM FIC will accept an input for the UEGO. This adds a digital gauge that can be seen through a laptop along with the RPM & Load gauges that are standard.

No it will not automatically correct AFR's. Not even the the AEM EMS has automatic correction. I believe only MOTEC has that....
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Old 09-21-2010, 08:07 PM   #5
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Their are some good videos on Youtube that help descripe the features of the FIC and a little on how it works. All the videos are made by AEM, so their for real. I have the wideband already installed and I should be recieving my FIC tomarrow. I plan on reading all the instructions installing and then trying some tuning myself with the help of those videos. The wideband will tell me if I'm going in the right direction or just making it worse. I would definitely get the wideband. It tells you exactly whats going on and using your tach. U can tell where you need to make adjustments.
I will let U know how it turns out.
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Old 09-21-2010, 09:08 PM   #6
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If you or anyone need help in tuning the AEM FIC please ask ; )
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Old 09-22-2010, 12:48 AM   #7
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If you or anyone need help in tuning the AEM FIC please ask ; )
Can you make a "AEM FIC Basics" thread or something like that?

A lot of us would like to know how to get started and what we should be looking for and doing in there.

I know at least 10 other people that would find it useful, and that is just me so I am sure there would be a ton of interest since there isn't any tuning threads at all.

Thanks!
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Old 09-21-2010, 09:16 PM   #8
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Has anyone concidered the Allan Phillips Racing ECU for their tuning needs?

I know it's pricy and all, but it looks like it would do everything with ease.
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Old 09-21-2010, 10:28 PM   #9
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APR is the Dezod unit, it can only be purchased through Dezod
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Old 09-22-2010, 12:11 AM   #10
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Yeah, I'm really on the fence when it comes to tuning... I have only one tuning shop that is near me, and I'm really not crazy about the guy from the three conversations we've had. I wouldn't mind learning some tuning, but am worried that with my inexperience and lack of dyno that I may cause damage... Then again, I did just throw a turbocharger in my car with no mechanical expertise so..

I'm definitely leaning towards doing it myself... I'd like to think I get the basics of AFRs and the effect of adding/removing fuel. With a wideband, how hard could it be?
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Old 09-22-2010, 12:50 AM   #11
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Originally Posted by Focus_Sh1ft View Post
Yeah, I'm really on the fence when it comes to tuning... I have only one tuning shop that is near me, and I'm really not crazy about the guy from the three conversations we've had. I wouldn't mind learning some tuning, but am worried that with my inexperience and lack of dyno that I may cause damage... Then again, I did just throw a turbocharger in my car with no mechanical expertise so..

I'm definitely leaning towards doing it myself... I'd like to think I get the basics of AFRs and the effect of adding/removing fuel. With a wideband, how hard could it be?
Do you plan on changing out any internal engine components?

I am just curious if you turbo guys are going to build your motors or just stay with a conservative boost. Not sure our tiny little motors are built for the long-haul when increasing its demands so much with boost.
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Old 09-22-2010, 12:13 PM   #12
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Do you plan on changing out any internal engine components?

I am just curious if you turbo guys are going to build your motors or just stay with a conservative boost. Not sure our tiny little motors are built for the long-haul when increasing its demands so much with boost.
I was already pricing out pistons rods and rings. I am thinking mabe next spring or summer. This looks like about the easiest engine pull possible. I would love to be pushing 15psi and get this thing really turning heads!
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Old 09-22-2010, 12:19 PM   #13
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I was already pricing out pistons rods and rings. I am thinking mabe next spring or summer. This looks like about the easiest engine pull possible. I would love to be pushing 15psi and get this thing really turning heads!
Do you think our cars could run ok stock @ 12psi with a not-too-agressive tune?
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Old 09-22-2010, 01:21 PM   #14
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Do you plan on changing out any internal engine components?
I honestly don't know yet. If I did it wouldn't be for awhile.

Also very doubtful that a good tune will let this engine run on 12 psi. There's really no proof that it can't, so you could be the guinea pig.

Anyways, I've decided I'll be doing my own tuning. I just ordered an AEM UEGO wideband and am going to do some more reading. cdydjded, I'll definitely be in touch... I'm hoping you can help me with the fuel trims for the most part, as that seems to be the most difficult.

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Dude, give Dezod a call, they are not too far, and he mentioned he be willing to give someone a deal.
Yeah, exactly what I thought, but I'm using an FIC. I have to admit, it is slightly tempting to take the deal and get some REAL engine management...
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Old 09-22-2010, 01:16 PM   #15
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Originally Posted by Focus_Sh1ft View Post
Yeah, I'm really on the fence when it comes to tuning... I have only one tuning shop that is near me, and I'm really not crazy about the guy from the three conversations we've had. I wouldn't mind learning some tuning, but am worried that with my inexperience and lack of dyno that I may cause damage... Then again, I did just throw a turbocharger in my car with no mechanical expertise so..

I'm definitely leaning towards doing it myself... I'd like to think I get the basics of AFRs and the effect of adding/removing fuel. With a wideband, how hard could it be?
Dude, give Dezod a call, they are not too far, and he mentioned he be willing to give someone a deal.

Quote:
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Yes this unit works. I'd be willing to cut one user a deal and help with tuning to provide further proof to the community that it works. Serious people only please.....
Dezod's thread.
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Old 09-22-2010, 02:13 PM   #16
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The jimze sc kit puts out 1 bar, as far as i can tell.

Therefore our cars should be ok at 12 psi. As long as the tune isnt crazy aggressive and richens out the afr.
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Old 09-22-2010, 03:15 PM   #17
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Quote:
The jimze sc kit puts out 1 bar, as far as i can tell.

Therefore our cars should be ok at 12 psi. As long as the tune isnt crazy aggressive and richens out the afr.
Stop your reasoning right there. 12psi on one thing is not 12psi on another depending on how much air it pumps out. A tune cannot be "aggressive or subtle" The fuel is tuned to 11.* AFR and the ignition is dialed in to where there is no knock.

In terms of aggresiveness it relates to how much pressure you are pumping in there. Say on this engine 6psi on his turbo kit is streetable. you can get away with 8psi on a good tune, but on these internals and that turbo, you would be wise to not try to push more than that.
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Old 09-22-2010, 03:24 PM   #18
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Stop your reasoning right there. 12psi on one thing is not 12psi on another depending on how much air it pumps out. A tune cannot be "aggressive or subtle" The fuel is tuned to 11.* AFR and the ignition is dialed in to where there is no knock.

In terms of aggresiveness it relates to how much pressure you are pumping in there. Say on this engine 6psi on his turbo kit is streetable. you can get away with 8psi on a good tune, but on these internals and that turbo, you would be wise to not try to push more than that.
I see, and thank you. I shouldn't be comparing psi from the turbo to a sc.

See, you guys can hit me with the noob hammer once in a while. lol

Just wondering about that jimze blower and how much more it will put out and stress our engines.
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