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Unread 12-16-2001, 06:15 PM   #1
m10e
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Join Date: Nov 2001
Location: ID
Posts: 7
power ?

What is a good power upgrade that won't send the YJ computer into hysterics? How can I get more out of my 4-banger without yarding it or the PC out?

How can I use a header with out computer malfunction?

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93 YJ, Jet Black/w Dark Glass. 31x11.50, I only have 4 FI Squirrels under the hood "& I think one is sick right now." I love 4x4'n in central Idaho...
If you live around Lewiston ID email me, m10_E@hotmail.com
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Unread 12-16-2001, 08:28 PM   #2
Atropine
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2000 TJ Wrangler 
 
Join Date: Sep 2001
Location: Charleston, SC
Posts: 552
You go back to the basic rule in power, if you let it breathe it will pay you back with horsepower. Some upgrades include

1) Intake-
taking out the restrictor in the airbox http://www.concentric.net/~jman/jeepmods.html
or getting rid of the airbox all together and replacing it with a funnel type setup

2) Exhaust-
replacing your exhaust with a more free flowing exhaust

3) Misc-
upgrade your plugs, wires, ignition, etc. http://www.msdignition.com/

4) Throttle body-
two options with this one i've seen so far
a) replace the 2.5l throttle body w/ 4.0
b) buy or fabricate a throttle body spacer one place you can go is here http://www.poweraid.com/

5) Increase bore-
must be technically proficient any time you start messing with the inside of your engine

6) Supercharger-
buy an aftermarket supercharger (big $$) or
use your junkyard war skills and find an old supercharger and modify it to fit a jeep

7) pull the whole thing out and put in a 4.0 or a V8
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Unread 12-16-2001, 11:01 PM   #3
bigsteve3184
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Join Date: Dec 2001
Posts: 284
One of my buddies was telling me that you cannot have a Throttle Body Spacer and a Air Intake system together...I have made an Air Intake system myself using my factory air hose...can i still install one?
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Unread 12-17-2001, 06:31 AM   #4
Newfie
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Quote:
Originally posted by bigsteve3184:
One of my buddies was telling me that you cannot have a Throttle Body Spacer and a Air Intake system together...I have made an Air Intake system myself using my factory air hose...can i still install one?
If you can't, I guess I'm in trouble . Look here
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Unread 12-19-2001, 02:56 AM   #5
jeffy
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1992 YJ Wrangler 
 
Join Date: Feb 2001
Location: Northern California
Posts: 745
Quote:
Originally posted by bigsteve3184:
One of my buddies was telling me that you cannot have a Throttle Body Spacer and a Air Intake system together...I have made an Air Intake system myself using my factory air hose...can i still install one?
Hmm, I've got a 4.0L TB, Poweraid TB spacer and a custom air intake on my 2.5L. I guess I better take two of them out, too.
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