Mustang 5.0 throttlebody vs. stocker-opinions please

[opie1]

Was thinking about doing this and just want to know if its worth it. I've got a '95 4.0 AW4 all stock. Looking for jy upgrades that will increase mileage or performance.

 

[VAhasnoWAVES]

alone... i can attest that you wont see crap out of a throttle body alone. though mine isnt extreme as the 5.0 swap, isnt that like 70mm? i could be mistaken, probably am. the only way to see significant improvement is to add a more free flowing head, more free flowing exhaust, intake, and play with WOT air/fuel mixtures all together... all that for a 4.0? not worth it. put that $1k else where.

if you want gas milage from a lifted jeep... gears. or get a honda.

 

[clean4drxj]

CAI and have a stock TB opened up on the bottom will be more than enough for your stock 4L

 

[opie1]

Stock TB opened up? Never heard of that. How's that done?

 

[hubs97xj]

http://www.go.jeep-xj.info/HowtoTBboring.htm





Improves throttle response a little bit. Wouldn't make any claims regarding added HP or mpg, but it's a $5 mod.

 

[jeeperjohn]

I bored my stock throttle body out to 64.4 mm. The only difference I noticed was snappier throttle response. I also had to match the intake manifold to the opening of the throttle body. This mod would have been much more noticable if I had other mods like a late model intake and some head work. All in all it doesn't hurt but doesn't help enough to justify spending money on it. I did mine because it didn't cost me anything.