throttlebody differences -

4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

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Old 06-25-2008, 05:53 PM   #1  
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Default throttlebody differences

Hello everyone. Has anyone tried more than one type of throttlebody/upper plenum combo and seen a difference in performance? I was thinking about trying trick flows 70mm throttlebody since I have their upper plenum. Any advise?
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Old 06-25-2008, 07:10 PM   #2  
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Default RE: throttlebody differences

You won't see a big enough difference to justify spending more money on 1 brand vs. the other. I run BBK with C&L plenum.
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Old 06-25-2008, 07:40 PM   #3  
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Default RE: throttlebody differences

Here's my reformatted version of Accufab's flow data, and an analysis of same...[/align][/align]Short story is as O2 said, six of one and 1/2 dozen of the other.[/align]
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Old 06-25-2008, 09:59 PM   #4  
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Default RE: throttlebody differences

PP t/b and plenum 200 bucks, was a good deal IMO
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Old 06-25-2008, 10:18 PM   #5  
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Default RE: throttlebody differences

I picked up a spare stock TB and plenum off ebay for $13 shippedand had itmailed straight to a machine shop who is porting and polishing it right now for $100. Both will be ported to 70mm.
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