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  #1  
Old 03-07-2013, 09:19 AM
wolfman01 wolfman01 is offline
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Default Question for the performance guys

Putzing around on the internet this morning happened to show an ad for a throttle body spacer. I've obviously heard of them, and have heard that they are supposed to boost power. My question is this: How can installing a chunk of aluminum between the throttle body and intake improve power?
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  #2  
Old 03-07-2013, 12:45 PM
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Its a waste of money, that simple.

The idea goes back to the days of carbs. You could put a spacer under the carb and it actually did have an affect, it increased the plenum volume. If I recall, this helped the top end horsepower, but hurt low end torque. On a modern fuel injected engine, its a waste of money.
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  #3  
Old 03-07-2013, 01:14 PM
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Quote:
Originally Posted by dodge man View Post
Its a waste of money, that simple.

The idea goes back to the days of carbs. You could put a spacer under the carb and it actually did have an affect, it increased the plenum volume. If I recall, this helped the top end horsepower, but hurt low end torque. On a modern fuel injected engine, its a waste of money.
^ +1. They work great on a lot of carb applications. They increase the amount of room for the fuel to mix with the air before turning corners in the intake. It gives more power and torque overall on the right application. On a fuel injected engine the fuel is injected later on in the intake manifold or directly into the cylinder. So the concept of giving the fuel and air more time to mix goes right out the window. If anything they give you a bit more an air vortex in your intake but you won't notice any gains from that. For a fuel injected engine all they are is a $130 whistle.
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Old 03-07-2013, 03:17 PM
seanbeckaroo seanbeckaroo is offline
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Ohh, this should get interesting....
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Old 03-07-2013, 03:38 PM
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I will say TB spacers are useful if you want to plumb in a N2O nozzle.
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Old 03-07-2013, 08:03 PM
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Quote:
Originally Posted by RamTech View Post
I will say TB spacers are useful if you want to plumb in a N2O nozzle.
X2, drill and tap it, put in a nitrous nozzle. They tell you it swirls the air/fuel mixture....except with port injection the fuel isn't anywhere near the throttle body. I'd guess it would work well on an old TBI engine.
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Old 03-07-2013, 08:15 PM
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Allow me to demonstrate the common effects of a throttle body spacer on a hemi engine:

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Old 03-07-2013, 08:19 PM
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Quote:
Originally Posted by CdnoilRAM View Post
Allow me to demonstrate the common effects of a throttle body spacer on a hemi engine:

Haha love it! +1 for that!
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Old 03-07-2013, 08:47 PM
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Quote:
Originally Posted by CdnoilRAM View Post
Allow me to demonstrate the common effects of a throttle body spacer on a hemi engine:

Post of the day? definitely
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Old 03-07-2013, 10:22 PM
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what are you guys talking about? my tb spacer works great on mine!!..lol

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