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Tune or not to Tune?

Old Oct 1, 2004 | 11:24 AM
  #1  
Carnesd's Avatar
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Default Tune or not to Tune?

First off I know this is more of an EM question but we know how slow that forum moves. So I'll ask it here if someone wants to move it then so be it.

I just got the zeitronix and am datalogging rpm, map, and tps. Did a few runs yesterday and my air/fuel in boost are in the high/mid 11's almost all the way across with a little dip into the mid 10's at around 5-5600 rpm.
My question is, am I going to get any more power out of tuning it up to low 12's?
Or is it fine the way it is?

Old Oct 1, 2004 | 11:29 AM
  #2  
projekteg's Avatar
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Default Re:Tune or not to Tune?

you might make a little more power, that's a little rich as is and you make more power leaner, so hell, if you have all the proper tools and know how, lean it out and see how it feels, if you don't like it, just reburn your current .bin here's a good chart of where you want your afr's, about 12.5:1 for the tip in to boost, then 12:1 the rest of the boost table is ideal......



Old Oct 3, 2004 | 12:24 PM
  #3  
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Default Re:Tune or not to Tune?

Damn, mabye I should have posted in EM.
Old Oct 3, 2004 | 12:27 PM
  #4  
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Default Re:Tune or not to Tune?

I would keep it at mid to high 11's and try to lean it out where it dips into the 10's. Maybe run a little more conservative timing and crank that boost up.
Old Oct 3, 2004 | 12:42 PM
  #5  
Ckjeepin's Avatar
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Default Re:Tune or not to Tune?

leave it.. you wont notice a diffrence.. And your safely rich... Dont ---- with it.
Old Oct 3, 2004 | 12:49 PM
  #6  
Carnesd's Avatar
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Default Re:Tune or not to Tune?

Originally Posted by beerbongskickass
I would keep it at mid to high 11's and try to lean it out where it dips into the 10's. Maybe run a little more conservative timing and crank that boost up.
I cranked up the boost to 14psi yesterday and still was in the low 12 afr's. Damn was that fun, I'm still kinda scared to go up to 12psi daily though.
Old Oct 3, 2004 | 12:59 PM
  #7  
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Default Re:Tune or not to Tune?

should be fine.
Old Oct 3, 2004 | 02:35 PM
  #8  
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Default Re:Tune or not to Tune?

Hows that Zeitronix working out for you BTW? You'll be the first person I'll hear an opinion from about that. I've been considering trading up my PLX M300 for either the LM-1 or Zeitronix's. I need something with dataloging. Uberdata's dataloging function is useless with my old and slow laptop
Old Oct 3, 2004 | 06:40 PM
  #9  
Carnesd's Avatar
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Default Re:Tune or not to Tune?

The zeitronix is just awesome. It's one hell of a deal. It was pretty easy to hook up and datalogging in no time. If you read this thread:

https://www.homemadeturbo.com/forum/...threadid=27347

You'll see where we figured out how to read the map sensor so you can even datalog boost without buying their expensive boost sensor. You get to datalog rpm, map, tps, and afr for $270.
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