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mbc?

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Old Sep 26, 2007 | 10:08 AM
  #1  
4bangin's Avatar
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Default mbc?

i have a O5 A4 1.8t first off.
i have friends with wrx's and the say stay away from boost controllers ebc or mbc and just stick with dyno tuningfor theengine even ots maps(chips) whatever that live tunning it best.
so my question is for the poeple that are running ebc or mbc are you monitoring to see if you have knock and/or if the car is pulling timing at all? if so what are you using?
i seen a plot of a stock a/f and it looked really lean already i mean it was at 12.5 to 13 range in the 5500 + rpms and 14's at torque peak. to me thats just scary. then to add boost to that WOW.

pls help me understand if i am missing something this is my first audi. thanks for the help.
 
Old Sep 26, 2007 | 10:11 AM
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Default RE: mbc?

Welcome! there’s sticky on mbc and if you use search u’ll get even more info on this… good luck.
 
Old Sep 26, 2007 | 10:56 AM
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Default RE: mbc?

kk, think i have got the idea.
egt's rise to high
idc max out
car pulls timing
ya, i am going with a live tune thanks for the help.
also i am gona get a egt sensor, and a wide band o2 before i get tuned.
already got the boost gauge .
 
Old Sep 26, 2007 | 11:35 AM
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Default RE: mbc?

check out the sticky about them. some people swear by them and some other people not so much. Cincytt is very found of them i believe and from what I here it works out great for him. Me personally, I don't use them but to each his own.
 
Old Sep 26, 2007 | 02:43 PM
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Default RE: mbc?

ORIGINAL: 4bangin

kk, think i have got the idea.
egt's rise to high
idc max out
car pulls timing
ya, i am going with a live tune thanks for the help.
also i am gona get a egt sensor, and a wide band o2 before i get tuned.
already got the boost gauge .
Your not going to have to worry about egt's with the stock turbo.

the timing is based on intake air temps (iat, thats at the manifold not the filter) and if its to hot it pulls timing and if its cool, it will keep it, same with octane, low will pull high octane wont. Now if you cool the charged air and increase octane you can increase timing.

Finally if you have a 01+, your car has a wideband o2 on it and can be read with a vagcom cable.
 
Old Sep 26, 2007 | 02:45 PM
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Default RE: mbc?

ORIGINAL: EVOLA4

check out the sticky about them. some people swear by them and some other people not so much. Cincytt is very found of them i believe and from what I here it works out great for him. Me personally, I don't use them but to each his own.
Why not have total control of the boost of your tiny assed turbo and have it spool faster and hold boost longer? Seems like your to scared to use a simple device
 
Old Sep 26, 2007 | 05:37 PM
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Default RE: mbc?

ORIGINAL: cincyTT
Why not have total control of the boost of your tiny assed turbo and have it spool faster and hold boost longer? Seems like your to scared to use a simple device
[/quote]

lol, guess you havent heard of issues when you are not at wotbut at full boost. dont A4's have a boost map in there ecu like other cars? there are a lot of parameters that go into maps and they are more 3D then 2D like a mbc would work. if you put the car outside of the maps it has dont you think that might cause an issue because then the car has no room to compensate. the engine is only a 1.8L wouldnt think the turbo would have to be that big to do damage.

and also is the O2 a 5v or 1v. i was thinking of a wideband like the LM-1 unit.

and for the egt its just to keep an eye on how the mixture is reacting. the intake temp is cool if your stock but when you are out of the map trying to get power its nice to have another input telling you in real-timehowlean you really are.

thanks for everyones reply's
 
Old Sep 26, 2007 | 06:03 PM
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lol, guess you havent heard of issues when you are not at wotbut at full boost. Uhhhh yeah, proper boost control has no problems with transition to boost.you really should ask around before you start acting like you know the 1.8t better than me You should start where everyone told you to go about the MBC above, im sure youll learn something (i wonder from who )

dont A4's have a boost map in there ecu like other cars? It is written in to the ecu, but the o2, maf and map can all compinsate for increase/decreases. Plus you can graph them if you get a vagcom cable

there are a lot of parameters that go into maps and they are more 3D then 2D like a mbc would work. if you put the car outside of the maps it has dont you think that might cause an issue because then the car has no room to compensate. You talk a bunch so people think your smart dont you? But, no, a mbc WILL NOT put the fuel/timing out of what the ecu can control.

the engine is only a 1.8L wouldnt think the turbo would have to be that big to do damage. The engine can do FAR more than what the turbo can or ever will produce.

nd also is the O2 a 5v or 1v. i was thinking of a wideband like the LM-1 unit. You really should read and stop posting. I already said you have a wideband and can access the a/f with a vagcom cable.

and for the egt its just to keep an eye on how the mixture is reacting. Your not going to get the egt's anywhere near hot enough with the stock turbo, the ecu will pull timing LONG before that. So that would be a waste

the intake temp is cool if your stock but when you are out of the map trying to get power its nice to have another input telling you in real-timehowlean you really are. again talking to make you think your smart. The iat's control timing, not a/f. You really need to learn the engine before you blow your **** up



Now im wondering if your going to take what i say this time or post more BS that you heard from someone else that doesnt even drive the same brand.


 
Old Sep 26, 2007 | 06:09 PM
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ORIGINAL: EVOLA4

check out the sticky about them. some people swear by them and some other people not so much. Cincytt is very found of them i believe and from what I here it works out great for him. Me personally, I don't use them but to each his own.
Why not have total control of the boost of your tiny assed turbo and have it spool faster and hold boost longer? Seems like your to scared to use a simple device
Not scared at all. Matter of fact I almost did it before i chipped. the only reason I chipped was because i knew somebody that hooked me up with the programs, flashloader and injectors. Plus I was trying to keep it nice and reliable at the same time since I am used to driving 150+ miles a day. Don't flame me I was the one who told him to ask you for advise[8D]
 
Old Sep 26, 2007 | 06:43 PM
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Default RE: mbc?

ORIGINAL: EVOLA4


Not scared at all. Matter of fact I almost did it before i chipped. the only reason I chipped was because i knew somebody that hooked me up with the programs, flashloader and injectors. Plus I was trying to keep it nice and reliable at the same time since I am used to driving 150+ miles a day. Don't flame me I was the one who told him to ask you for advise[8D]
You do know that you can use it with the chip right? Its not altering reliablity one bit. Plus like i said before, you can increse/decrese boost and spool faster and hold boost longer. Seems worth it to me
 



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