ok i know there is a guy on here or somewhere online that bores throttle bodies just for the JEEP 4.0. i cant seem to find it anymore.......anyone got a link or anything? all u do is send him yours and he bores it and sends it back. he will even powder coat it whatever color you want for extra money.....i cant find it.!!!

 

never mind i found it. ...........

here is the link if someone was looking for it as well....
http://www.strokedjeep.com/tbody.html

 

I don't think this is the one your looking for but a lot of Jeep people go to him.

http://www.thefastman.com/Throttlebodies40.asp

 

bump.
What is the best size i should go? says he can bore it safely to 64mm. i was just planning on going to 63mm. any suggestions?

 

no reason to go bigger than 61 or 62.. the intake manifold opening will bottleneck you. mines a 63.

 

its the same price no matter what bore size, i figured might as well go with the 63. why did u go with the 63?

 

mine is 63mm and i have a 99+ intake manifold...no restriction from Intake with 63.

 

would there be restriction from the Intake if i bored it to 64?

 

probably not but if there is a dremel will make quick work out of it.

 

ok then, im probably going to have mine bored to 64mm, install a newer intake while im putting my new header on. Thanks!

 

So this is something I am considering aswell, how much of a difference do you notice? any affect on MPG? and total cost is around 90? after returning a t body core?

 

total cost from thefastman.com is $130 after you return the core, but its worth it. he replaces the shaft with a custom stainless shaft and replaces the blade with a new feathered edge blade. he also smoothes the sensor ports on the TB to prevent whistling and installs a new throttle cable spring. i noticed better throttle response and about 2-3 MPG better after i installed mine...

 

wow that sounds worth it! especially since I have a cold air intake

 

i didnt get any MPG... but theres a very noticeable increase in throttle response

 

would it be better to have a bored throttle body on the 97 intake manifold or a bored TB on the 99+ intake Mani?