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Weird issues with my UTEC...pls help !

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Old Mar 2, 2009 | 01:39 AM
  #21  
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^ yeah ur right about the base map but i said if someone shares his map it might bi a bit better than the one i have right now...
anywayz one more question, you tune using 4th or 5th since there's more load on the engine ? you have the same A/F for all gears ?
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Old Mar 2, 2009 | 02:11 AM
  #22  
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^ yeah ur right about the base map but i said if someone shares his map it might bi a bit better than the one i have right now...
anywayz one more question, you tune using 4th or 5th since there's more load on the engine ? you have the same A/F for all gears ?
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Old Mar 2, 2009 | 06:31 AM
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Originally Posted by zerosec
^ yeah ur right about the base map but i said if someone shares his map it might bi a bit better than the one i have right now...
anywayz one more question, you tune using 4th or 5th since there's more load on the engine ? you have the same A/F for all gears ?
When road tuning use 4th and if u dont have enough room then use 3rd. Also it is best if u can find a long strech of road uphill.
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Old Mar 2, 2009 | 06:38 AM
  #24  
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If you have a dyno then 4th or 5th is good gear to tune but for street tuning I tune most of the time at 3rd and 4th gear. I use 3rd and 4th because there are not a lot of space in NYC where I can run 130mph just to tune my higher rpm so I use my 3rd gear to tune above 6000rpm. Turbo rely heavily on load so every gear will have different load but on my car I run a little leaner on lower gears and I run the richest on 5th gear but not a huge difference though, I would say I may see 11.7 A/F on 3rd at 8psi@6000rpm and 11.4 A/F on 5th gear at 8psi@6000rpm. Not sure if this is the case on NA but this is just how my car react... lol
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Old Mar 2, 2009 | 02:10 PM
  #25  
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^ aha i guess these A/F numbers are without water injection, right ??
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Old Mar 2, 2009 | 02:28 PM
  #26  
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That is with W/M and with 2-3 deg more timing, without meth I would target 11.3-11.5 on 93 octane.
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Old Mar 2, 2009 | 03:01 PM
  #27  
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why not go for leaner mixture to maximize the potential of WI...???
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Old Mar 2, 2009 | 04:56 PM
  #28  
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Dont want to take a risk coz what if the kit fail? Even with the atomization of Meth/water there is still a risk of uneven distribution of meth on each cylinder, I know the risk is not as high with NA coz the turbo create turbulence to keep the water/meth atomized even after passing a dry manifold. I'm still on stock block so basically I went with a water/meth injection to give an added safety and not to squeeze all the power I can muster.

Once I'm ready to build the motor or have the fund for a built motor then this baby will see 2-3 more psi and leaner AF but I dont see that anytime soon.. lol
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Old Mar 9, 2009 | 12:41 PM
  #29  
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2-3 PSI are going to cost you lots of money haha :P
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Old Mar 16, 2009 | 02:59 PM
  #30  
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do u need to adjust the fuel trims when u go with bigger injectors ? ;/
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Old Mar 17, 2009 | 06:17 AM
  #31  
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Yes, you will need to re-tune the entire fuel map with bigger injectors.
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Old Mar 17, 2009 | 06:06 PM
  #32  
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^ so i need a scanning tool right ?
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