Bored Throttle Body
CF Veteran
Joined: Feb 2010
Posts: 3,869
Likes: 2
From: Allentown, Pa
Year: 1994
Model: Cherokee
Engine: 4.0L HO
CF Veteran
Joined: Feb 2010
Posts: 3,869
Likes: 2
From: Allentown, Pa
Year: 1994
Model: Cherokee
Engine: 4.0L HO
That would be dependant on your individual Xj, but I would never see this upgrade hurting fuel mileage. Some rigs it will help fuel mileage, some it won't have any effect on... but I wouldn't see it hurting it by any means. My shift points from first to second gear are lower after this upgrade... that alone will help fuel mileage tremendously.
Junior Member
Joined: Jan 2011
Posts: 83
Likes: 0
From: Converse, TX
Year: 1999
Model: Cherokee
Engine: 4.0 I6
I've got my bored TB on finally and it is awesome. I'm getting a couple of trouble spots done before I put on a lift and bigger tires, and the TB is definitely a step in the eight direction in getting ready for larger tires. It's made a noticeable difference in my acceleration and wide open throttle.
CF Veteran
Joined: Feb 2010
Posts: 3,869
Likes: 2
From: Allentown, Pa
Year: 1994
Model: Cherokee
Engine: 4.0L HO
I've got my bored TB on finally and it is awesome. I'm getting a couple of trouble spots done before I put on a lift and bigger tires, and the TB is definitely a step in the eight direction in getting ready for larger tires. It's made a noticeable difference in my acceleration and wide open throttle.
Thread Starter
CF Veteran

Joined: Nov 2008
Posts: 1,350
Likes: 5
From: Stokesdale, NC
Year: 89XJ,98ZJ,72K10, 06 Tundra..
Model: Cherokee
Engine: 4.0
I just got nailed by upper management on another forum...
Some guy asked what he could do for an upgrade.....I said, buy a ported throttle body from Thexjfiles!
Since Im not a paying member or a Vendor there....they didnt like that very much....oh well.
Some guy asked what he could do for an upgrade.....I said, buy a ported throttle body from Thexjfiles!
Since Im not a paying member or a Vendor there....they didnt like that very much....oh well.
CF Veteran
Joined: Oct 2009
Posts: 2,867
Likes: 16
From: Fauquier County, Virginia
Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
They're just jealous because they don't have a bored throttle body and they don't want anyone else to either.
Thread Starter
CF Veteran

Joined: Nov 2008
Posts: 1,350
Likes: 5
From: Stokesdale, NC
Year: 89XJ,98ZJ,72K10, 06 Tundra..
Model: Cherokee
Engine: 4.0
That would be great! Id prefer it. Im hitting a jy this weekend to try to find some cores, but I kinda have to rely on customers sending me their old ones.
CF Veteran
Joined: Feb 2010
Posts: 3,869
Likes: 2
From: Allentown, Pa
Year: 1994
Model: Cherokee
Engine: 4.0L HO
Hey, that reminds me. I've got a core from my '94 to send you. PM me your shipping info and I will get it out to you the next day I have off during post office hours.
Well, they are not very cheap here in NJ. But I'll keep looking. Otherwise, let me know when you get one for my year. Thanks.
CF Veteran
Joined: Feb 2010
Posts: 3,869
Likes: 2
From: Allentown, Pa
Year: 1994
Model: Cherokee
Engine: 4.0L HO
I ran into the same problem. I checked the price of them to see if I could pull some at the junkyard and send them to him but they run around $40 at the junkyard. They are listed as carbs...
Yup! I even checked ebay. Same thing. It's like someone put the word out that he's doing them now and everybody jacked up the price. You used to be able to get the for 10 or 15 bucks because nobody ever needed them.




