best throttle body for my 4.0? - JeepForum.com

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post #1 of 30 Old 10-03-2013, 08:55 AM Thread Starter
wildkardboyz
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best throttle body for my 4.0?

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


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post #2 of 30 Old 10-03-2013, 09:09 AM
Unlimited04
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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.


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post #3 of 30 Old 10-03-2013, 09:12 AM
kornfanxx61
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Quote:
Originally Posted by Unlimited04 View Post
a 63mm throttle body isn't bad, it's kinda like just pushing the pedal more on your stock throttle body....no real power gain. all that other stuff is gonna be useless.
this,

if I remember right most stock throttle bodies are bored out to 58mm. a 62-63 helps but like unlimited said upgrading your intake does only so much.
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post #4 of 30 Old 10-03-2013, 09:19 AM
jeepwrangler97
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I have a 63mm on my stroker. Check out stroked jeep .com

Or search jeff leigh stroked jeep, he was great to deal with & had great pricing

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post #5 of 30 Old 10-03-2013, 09:31 AM
Blktjsport
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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.

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post #6 of 30 Old 10-03-2013, 09:53 AM
Jerry Bransford
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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.

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post #7 of 30 Old 10-03-2013, 10:12 AM
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Snake oil works better.
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post #8 of 30 Old 10-03-2013, 10:32 AM
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It's very rare that I run my TJ at WOT. It sounds like if I wanted a better response, perhaps this might be something of interest.

Can you afford the car? Have I provided you all the information you need on the car? Do you like the car? Then buy the car.
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post #9 of 30 Old 10-03-2013, 12:05 PM
J03_TJ
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Quote:
Originally Posted by SlackJaw
It's very rare that I run my TJ at WOT. It sounds like if I wanted a better response, perhaps this might be something of interest.
I don't think my jeep has ever seen wide open throttle...
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post #10 of 30 Old 10-03-2013, 12:43 PM
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Originally Posted by J03_TJ View Post

I don't think my jeep has ever seen wide open throttle...
The underside of my gas pedal is showroom quality, lol

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post #11 of 30 Old 10-03-2013, 12:44 PM
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Quote:
Originally Posted by J03_TJ View Post
I don't think my jeep has ever seen wide open throttle...
Neither has mine.

My wife's JGC has, however, every time I change the oil



HP is not something I've ever found myself to be lacking while on the trail.

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post #12 of 30 Old 10-03-2013, 12:53 PM
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Quote:
Originally Posted by J03_TJ View Post
I don't think my jeep has ever seen wide open throttle...
mine sees it all the time. elevation + 42RLE + gear/cargo/trailer = lots of downshifting, high RPMs & WOT.


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post #13 of 30 Old 10-03-2013, 01:22 PM
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Quote:
Originally Posted by Unlimited04

mine sees it all the time. elevation + 42RLE + gear/cargo/trailer = lots of downshifting, high RPMs & WOT.
I hesitate to tell you my jeep has never see full bump either. Lol. Been close though, hahaha.
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post #14 of 30 Old 10-03-2013, 03:38 PM
05x
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Like others have mentioned a 62mm is pretty much your best choice however it works best in combo with an air intake, exhaust, header and or tuner.
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post #15 of 30 Old 10-03-2013, 04:36 PM
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Quote:
Originally Posted by wildkardboyz View Post
so I'll just ask again what is the best throttle body to run on a 97 Wrangler with a 4.0
The OEM one... IMO
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