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  #1  
Old 08-31-2009, 01:25 AM
Bear Bear is offline
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Default Throttle Body Spacers

Are these any good? Do they really add the Horsepower and Torque that they say they do? or what. Give me some feedback..
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  #2  
Old 08-31-2009, 03:48 AM
STL STL is offline
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No all they do is make a whistle sound when you accelerate
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Old 08-31-2009, 05:40 AM
Jay FX4 Jay FX4 is offline
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Quote:
Originally Posted by STL View Post
No all they do is make a whistle sound when you accelerate
+1. I've heard from a few sources that they do nothing.
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Old 08-31-2009, 06:11 AM
Clem Clem is offline
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+2.
The people I know who have used them actually lost some MPG and said they wasted their money.

Ray
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  #5  
Old 08-31-2009, 01:51 PM
STL STL is offline
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All it is doing is gaping the distance of the intake tube to the throttle body

So how that helps is beyond me
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  #6  
Old 09-01-2009, 08:36 AM
Rafe Rafe is offline
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Actually, I bought mine from Poweraid and I love it. It does boost hp slightly and increases torque a bit more. There is a much more noticable increase in power for towing. I was able to tow a large U-Haul trailer up a very steep grade without downshifting or losing speed. I towed this trailer from Virginia to Texas and noticed an increase in mpg. I average about 18-19mpg while towing this distance.
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Last edited by Rafe; 09-01-2009 at 09:17 AM. Reason: Typos...
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  #7  
Old 09-01-2009, 05:05 PM
RangerJustin RangerJustin is offline
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Not to burst your bubble there Rafe...but the increase in mpg is more than likely due to lack of stop and go driving. I have been up to 25 mpg on the freeway with my larger wheels and tires.

Did you dyno your truck before and after to see the hp and torque #s go up?
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Old 09-01-2009, 05:47 PM
surfer03133 surfer03133 is offline
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i just towed a trailer 200+ miles of highway driving, i averaged about 21-22 mpg with the trailer, i get around 25 without on the highway, the tb spacer has been proven to hurt performance rather than improve it.
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  #9  
Old 09-02-2009, 07:28 AM
Rafe Rafe is offline
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Who has proven that the TB spacer hurts performance? I get around 18-20 on the highway and like I said towing an oversized trailer did not hurt my mileage as though I would have thought. However I will make myself subject to the assumptions and plan on removing mine to see if there's a loss in power and/or mileage.

Edit:
I just wanted to clarify something. I do not believe that the TB Spacer is all it is made out to be by most of the manufacters, (ie not adding the power/torque that the manufacturer promises or advertises). I do however believe that depending on application and other mods installed previously or in addition to the TBS, the TBS will add low through mid-range torque and hp but not as significant an increase as the "For" websites suggest.
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Last edited by Rafe; 09-02-2009 at 07:35 AM. Reason: additional clarification.
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  #10  
Old 09-02-2009, 03:56 PM
02'4.04x4 02'4.04x4 is offline
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Hmm, seems there's some confusion about this.
I will shed my light and hope it helps.
TB spacers DO work. . . . .
That being said just as the many good sales companies would like it to be.
Here's the rest of the story. They have been around for many years, I repeat many years.
they were used to increase the velocity within the venturies of a carbuerator. . . . .
allowing for a better fuel atomization rate from the bottom of the carb to the valve seats. . . . .
Now think for a moment what is missing on a MPFI system? ? ? ? ?
Hmm. . . . .
Maybe the runners. . . . .
They are a BS cheap sales gimmick that offer no scientific(def. cannot be proven) gain.
You would have better results with the theory behind the "Tornado" as it "could" possibly help reduce viscosity within the intake hose allowing for a marginal improvement on ram air systems. . . . . i.e. the amount of vaccum created by a sucking engine is not enough to manipulate the airflow by using one of these 90cent Chinese pieces of metal they sell for a wonderful profit. . . . .
That being said, I am darn upset I did not think of it. . . . .
HTH
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  #11  
Old 09-03-2009, 01:00 AM
02'4.04x4 02'4.04x4 is offline
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Quote:
Originally Posted by Bear View Post
Are these any good? Do they really add the Horsepower and Torque that they say they do? or what. Give me some feedback..
You want HP and TQ Start with the basics, remember the strength of a chain theory. Well do some reading, or talk with some motor heads, guys typically found under a hood or under a car, avoid young guys who cut their exhausts off, and buy pretty things for HP.
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  #12  
Old 09-03-2009, 06:30 AM
Rafe Rafe is offline
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Quote:
Originally Posted by 02'4.04x4 View Post
You want HP and TQ Start with the basics, remember the strength of a chain theory. Well do some reading, or talk with some motor heads, guys typically found under a hood or under a car, avoid young guys who cut their exhausts off, and buy pretty things for HP.
On that. What are the average gains with replacing the exhaust manifolds with actual headers? I've heard you could free up ~25 hp ~15 torque. Supposedely it gives your exhaust a better tone/note and overall helps the engine function. Any thoughts on this?
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  #13  
Old 09-03-2009, 12:42 PM
02'4.04x4 02'4.04x4 is offline
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Quote:
Originally Posted by Rafe View Post
On that. What are the average gains with replacing the exhaust manifolds with actual headers? I've heard you could free up ~25 hp ~15 torque. Supposedely it gives your exhaust a better tone/note and overall helps the engine function. Any thoughts on this?
Hmmm, loaded question.
exhaust tone sure, overall. . . . . hmmm, they want you to buy them. Most brands will take the best optimum conditions and mods and then test the product for gains that you will most likely never see. Some headers make a relly crappy tinny sound, some give a nice throaty sound, but it depends on the build. headers are generally not the place to start. Anytime you look at a product that exclaims it will produce 5,000hp and 5 million foot lbs. of tq, look at the dyno band, it usually is somewhere around 6,000rpm+/-. when was the last time you drove your vehicle in this rpm range? . . . . .
tq increase usually reduces hp, hp increases usually reduces tq. See a pattern?

So overall helps engine function. . . . . less restrictive headers help breathing for hp(upper bands), but you will see an equal reduction in tq(low bands).
are you building for sprinting, or dragging? Think about it and then forget the headers until you really understand this. This is only my opinion and it is based off of my experiences.

Last edited by 02'4.04x4; 09-03-2009 at 12:47 PM.
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  #14  
Old 09-03-2009, 05:51 PM
Bear Bear is offline
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What do you mean sprinting or dragging?
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  #15  
Old 09-03-2009, 08:25 PM
02'4.04x4 02'4.04x4 is offline
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Quote:
Originally Posted by Bear View Post
What do you mean sprinting or dragging?
Sprinting- quick burst of low end power(like SCCA, Rally, Crawling)
Dragging- long all out high end power(Drag, circle track, etc.)
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