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Throttle Body and Plenum 70mm or 75mm?

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Old 01-24-2010, 03:58 PM
  #1  
offthewall158
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Default Throttle Body and Plenum 70mm or 75mm?

Planning on getting a trick flow throttle body and intake plenum for my 02 GT. I read somewhere that a 75mm throttle body is only good for cars that are heavily modified because a bolt on GT does not flow enough air to benefit from a larger throttle body. My car only has some minor bolt ons (CAI and exhaust) and 3.73 rear gears, but Im rebuilding the engine in a little over a year from now. Would I be alright with a 75mm throttle body or should I get the 70mm?
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Old 01-24-2010, 04:04 PM
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ct_white_stang
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Just get the 75m thats what I am rolling with. If you supercharge later or modify the engine you will be all set. It won't hurt.
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Old 01-24-2010, 04:22 PM
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mrtstang
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The 75 will work just as good as the 70 right now, and will do that much better when you do bigger mods.
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Old 01-24-2010, 04:40 PM
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IEGT1015
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75mm.
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Old 01-24-2010, 04:50 PM
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wrr1020
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75, be fine with your minor bolt ons and your basically future proofing yourself if you ever go FI.
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Old 01-24-2010, 05:33 PM
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tdcalhoun89
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I've got a 70mm, some people think a 75mm tb is overkill and could actually give you less power. Idk about that, but my 70mm made a noticeable difference for me (minor bolt-ons). If you plan on going f/i, I'd just get the 75mm.
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Old 01-24-2010, 08:06 PM
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02stang2113
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Just do the 75 so u wont have to switch
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