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Turbocharged 4.0's

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Old Oct 20, 2011 | 03:01 PM
  #1  
pepperson4's Avatar
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From: Antioch IL
Year: 1993
Model: Cherokee
Engine: 4.0
Default Turbocharged 4.0's

so lately ive seen a lot more interest in turbos for the inline 6's. since it seems to clutter up all the forums with discussion, i was thinking people could share there ideas here.
my setup: ching chong t3/t04e tubo
stock injectors
stock map sensor
no intercooler of any sort
completely stock motor with 220k on it
custom turbo manifold
downpipe connected to stock exhaust, 2.5"
ghetto air filter till i can find one that fits
8psi spring in wastegate with open dump, no MBC for now
PLEASE make suggestions on things regarding turbos and or my setup!
remember im a poor highschooler!
some good info on turbo 4.0's:
http://www.pirate4x4.com/forum/showthread.php?t=658004
http://www.pirate4x4.com/forum/showt...ighlight=400HP
Attached Thumbnails Turbocharged 4.0's-rsz_pa040008.jpg   Turbocharged 4.0's-rsz_pa140001.jpg   Turbocharged 4.0's-rsz_pa140002.jpg   Turbocharged 4.0's-rsz_pa140003.jpg   Turbocharged 4.0's-rsz_pa160011.jpg  

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Old Oct 20, 2011 | 03:15 PM
  #2  
Hooligan Off Road's Avatar
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From: Lyons, Colorado
Year: 1992
Model: Cherokee
Engine: 4.0
Default

I want one. How does it affect MPG and power?
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Old Oct 20, 2011 | 03:19 PM
  #3  
pepperson4's Avatar
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From: Antioch IL
Year: 1993
Model: Cherokee
Engine: 4.0
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mpg - ive seen some tests where it actually helps, but it all depends on the car, ill have to do a test to see. power wise, wihtout an intercooler i proably have a good 60hp minimum more right now.
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Old Oct 20, 2011 | 03:22 PM
  #4  
UsmclovesXJ's Avatar
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From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
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Also your turbo kicks in at higher roms right??? Plus turbos hate hate hate heat so its a good/ bad thing
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Old Oct 20, 2011 | 03:24 PM
  #5  
DualSportDad's Avatar
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From: Ft. Myers, Fl.
Year: 1997, 1999
Model: Cherokee
Engine: 4.0
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No fuel management? I have been thinking about adding a turbo to mine. I figured try 2 times larger injectors and a afc hack.
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Old Oct 20, 2011 | 03:25 PM
  #6  
UsmclovesXJ's Avatar
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From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
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48Lb bost injectors...
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Old Oct 20, 2011 | 03:30 PM
  #7  
Gee oh Dee's Avatar
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From: Milwaukee, WI
Year: 1987
Engine: Check
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When do you see full boost?

How many psi are you running?
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Old Oct 20, 2011 | 03:37 PM
  #8  
UsmclovesXJ's Avatar
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From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
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8.5Lb I thought
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Old Oct 20, 2011 | 03:37 PM
  #9  
dcook_14's Avatar
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From: Waterloo, IA
Year: 1997
Model: Cherokee
Engine: =
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How are your a/f ratios with this setup? Do you ever notice any pinging from it running lean?
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Old Oct 20, 2011 | 03:40 PM
  #10  
Gee oh Dee's Avatar
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From: Milwaukee, WI
Year: 1987
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Originally Posted by UsmclovesXJ
8.5Lb I thought
Where did you see that?

Originally Posted by dcook_14
How are your a/f ratios with this setup? Do you ever notice any pinging from it running lean?
He better have a wideband.
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Old Oct 20, 2011 | 03:42 PM
  #11  
LongArmXJ's Avatar
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From: Dayton Ohio
Year: 1998 classic
Model: Cherokee
Engine: 4.0!!
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how long have you been running this? No fuel management is going to kill this thing quick. you are adding all that air and no fuel lol. running lean is bad btw! upgrade fuel pump and fuel filter, injectors, and some sort of fuel management. safc will get you by but still risky.
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Old Oct 20, 2011 | 03:42 PM
  #12  
UsmclovesXJ's Avatar
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From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
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I took a guess there
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Old Oct 20, 2011 | 03:53 PM
  #13  
Gee oh Dee's Avatar
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From: Milwaukee, WI
Year: 1987
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Originally Posted by LongArmXJ
how long have you been running this? No fuel management is going to kill this thing quick. you are adding all that air and no fuel lol. running lean is bad btw! upgrade fuel pump and fuel filter, injectors, and some sort of fuel management. safc will get you by but still risky.
A wideband and SAFC is a beautiful way to tune, actually.
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Old Oct 20, 2011 | 03:55 PM
  #14  
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From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
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That's still a scary setup
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Old Oct 20, 2011 | 03:56 PM
  #15  
Quadratec's Avatar
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From: West Chester, PA
Model: Cherokee
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This is so awesome! I'm trying to convince someone here to do this now

-Joe
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