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Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Calling all 4 bangers! This is THE BEST performance mod I've done!!!

ANOTHER Rockridge4wd Creation!! Spare Tire Carrier Delete The Original 3/8" Ruffstuff Diff Cover!Even Better Heim Pricing! From Ruffstuff

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Unread 09-01-2008, 02:20 PM   #16
1998zj
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1995 YJ Wrangler 
 
Join Date: Jul 2004
Location: Indiana
Posts: 1,848
My best mod on the 2.5 is to double it's size. I have a 5.0 ford ready to go in sitting in the garage. Should be about a 200 HP improvement.

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Unread 09-20-2008, 03:49 PM   #17
UNLIMITLESS
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2000 XJ Cherokee 
 
Join Date: Mar 2008
Location: KINGSTON, New York
Posts: 158
As far as $ spent on my 2.5 TJ this was by far the best upgrade. The biggest pain is getting the IAC housing off (security Torx). If you have a 2.5 DO IT!!!
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2000 Jeep XJ Sport Lifted on 31s Freedom Edition
1997 TJ 2.5 Low Output SOLD!
1993 Wrangler 2.5 Low Output
1964 Ford Falcon Futura Convertible (Mopar under the hood. Shhh don't tell anyone)
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Unread 09-12-2011, 06:36 PM   #18
Pelech
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1999 TJ Wrangler 
 
Join Date: Jul 2010
Location: New Jersey
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So quick question, i'm thinking about taking the throttle body out of my friends totaled 98 XJ, will it fit in my 1999 TJ Wrangler 2.5L ??
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Unread 09-12-2011, 07:13 PM   #19
UNLIMITLESS
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Location: KINGSTON, New York
Posts: 158
Just swap your IAC housing and valve along with the TPS. No longer downshifting into 4th on the hill by my house.
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2000 Jeep XJ Sport Lifted on 31s Freedom Edition
1997 TJ 2.5 Low Output SOLD!
1993 Wrangler 2.5 Low Output
1964 Ford Falcon Futura Convertible (Mopar under the hood. Shhh don't tell anyone)
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Unread 09-12-2011, 07:17 PM   #20
Pelech
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1999 TJ Wrangler 
 
Join Date: Jul 2010
Location: New Jersey
Posts: 86
Quote:
Originally Posted by UNLIMITLESS View Post
Just swap your IAC housing and valve along with the TPS. No longer downshifting into 4th on the hill by my house.
What's TPS, did you mean TBS as in throttle body spacer?
And i would like to switch everything out but everything is pretty much totaled im lucky that the throttle body is perfect. do you think it will work with just the throttle body?
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Unread 09-12-2011, 07:24 PM   #21
Drix
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1995 YJ Wrangler 
 
Join Date: May 2004
Location: Orting, Washington
Posts: 841
Quote:
Originally Posted by fyrdriver
According to this post on 4banger Jeeps site:
91-95 2.5 53007232 17.4 psi/hr
Replaceable with Ford DB5 yellow tops 19 psi/hr

Heres the link dont know if it will work?????
http://4bangerjp.com/forums/index.php?topic=3479.0
Ford 19lbs injectors are a common upgrade for a lot of vehicles. I put them on my 99 Dakota when I had it. You have get the extra air in or your gonna be running a bit rich.
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95' YJ 4" lift 33"x12.5r15's D30/8.8 locked with 4:88's
USMC Jeep Club #6
"Why in hell can't the Army do it if the Marines can. They are the same kind of men; why can't they be like Marines."
Gen. John J. "Black Jack" Pershing, USA; 12 February 1918
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Unread 09-12-2011, 08:17 PM   #22
UNLIMITLESS
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2000 XJ Cherokee 
 
Join Date: Mar 2008
Location: KINGSTON, New York
Posts: 158
I'd have to pop the hood but I think I remember swapping the Throttle Position Sensor also. You have to use the 2.5 sensor.
__________________
2000 Jeep XJ Sport Lifted on 31s Freedom Edition
1997 TJ 2.5 Low Output SOLD!
1993 Wrangler 2.5 Low Output
1964 Ford Falcon Futura Convertible (Mopar under the hood. Shhh don't tell anyone)
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