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Old 12-10-2008, 08:49 PM   #1
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Throttle Body Spacer

hey does a Throttle Body Spacer really work i mean for the price how much difference can it be, let me know might buy one

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Old 12-10-2008, 08:55 PM   #2
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Under the type of throttle body a Jeep TJ has, it will have absolutely zero effect. None. Under a carburetor or the older style of throttle body called throttle body injection, yes a spacer would help... often dramatically. But the TJ's throttle body only passes air through it so installing a spacer under it will do nothing... despite the marketing claims. Someone gave one to me years ago and it's now in my junk box.

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Old 12-10-2008, 09:14 PM   #3
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I don't know if I would spend the $70 again for the Poweraid TBS. However, there seems to be an improved throttle response, maybe a little peppier around town. No real milage differences.
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Old 12-10-2008, 09:17 PM   #4
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What you noticed was strictly a placebo effect Bigstonz. Again, the TJ's throttle body only passes air through that part of the engine. It'd be like making your wind pipe longer in hopes it will make you stronger.
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Old 12-10-2008, 09:22 PM   #5
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You may be right, I bought it based on an article in JP magazine. It's certainly not near the top of the list of mods done to the jeep. I'll leave it in there since I took the time to install it.
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Old 12-10-2008, 09:25 PM   #6
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but it does actuall increase the size of your plenum which is know for giving you an increase in hp / tq, most likely very very minimal at best...
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Old 12-10-2008, 09:31 PM   #7
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Originally Posted by silverhero2005 View Post
hey does a Throttle Body Spacer really work i mean for the price how much difference can it be, let me know might buy one
it makes a cool whistling noise...
thats about it
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Old 12-10-2008, 09:31 PM   #8
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I would go for a bored out throttle body, Link it is a stock 4.0 throttle body bored out from a 62-55mm taper to 63mm all the way down.

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