I know this is been asked 2000 times but I can I find the forms since its so hard to locate stuff in there. so I'll just ask again what is the best throttle body to run on a 97 Wrangler with a 4.0 please give me isome feed back I will be placing the banks power system here shortly monster exhaust coming in cold air intake I just like to run a 63 mm throttle body just don't know which one to get . would you put in a ported one or would you buy a new one please give me your input thanks
Pain... is .... weakness... leaving the body....
a 62/63mm throttle body isn't bad, it's kinda like just pushing the pedal more on your stock throttle body....no real power gain. if you're paying more than $100 for it, don't bother. all that other stuff is gonna be useless.
I have a jeepers creepers 62mm, and I'll tell you that coupled with a cowl intake and free flowing exhaust there is noticeable difference. At first I thought maybe my butt dyno was being bias, until I drove my buddies tj where he was all stock except similar lift and tire combo. Wow what a difference in throttle response and power. Although not scientific we both went back and forth between TJ's and both came to the same conclusion, needless to say he is working on intake and exhaust upgrades.
A larger throttle body doesn't give a real power boost, it just fools some into thinking it. As mentioned above, a larger throttle body simply allows more air in earlier, like stepping on the accelerator pedal a tad... but the at WOT (wide open throttle), the larger throttle body can't flow any more air than the engine is capable of consuming. Like holding a big funnel in your mouth won't help your lungs consume or process more air to help you run any faster.