70-75 mm throttle body - Mustang Evolution

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Old 07-28-2013, 09:47 PM   #1
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70-75 mm throttle body

I am having a tough decision picking between either a 70 or 75 mm throttle body. I am wanting to get a new plenum to go along with that as well..
ideas would be great., thanks.

What I've done to my ride so far... 2001 GT
cold air intake
3.73 gear
stage 2 cams
Accel coil pack
shorty headers
underdrive pullies
x pipe, with a catback exhaust.
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Old 07-28-2013, 09:50 PM   #2
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Id just go with bbk's 78mm combo. And it will be useful with a forced induction setup in to future also if you ever decide to go that route
And welcome
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Old 07-28-2013, 10:10 PM   #3
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Welcome to ME!! What are your plans for the car? Anything over 70mm starts losing air velocity on a N/A motor so unless you go with some boost or spray in the near future it's unnecessary to go above it. There's a good article linked to some air flow charts done by Accufab in The Beginners Guide to Bolt Ons in the stickies section if you wanna read it
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Old 07-28-2013, 10:19 PM   #4
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Click me.

Oh, also upgrade your plenum while you are at it, you won't see a damn thing for gains if you stick with the stock plenum. Accufab is the best one, Trick Flow is easily the best one for the money.
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Old 07-28-2013, 10:27 PM   #5
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Thanks guys!

I'd love to get a supercharger, but it will have to wait.

what i plan on doing next to the car is to upgrade the fuel pump, drive shaft, and do some work to the suspension, like control arms, and etc...
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Old 07-28-2013, 10:31 PM   #6
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As a rule of thumb, the MAF should be 5mm bigger than your Throttle body
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Old 08-21-2013, 10:56 AM   #7
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Sorry I know this is an old thread. But I just wanted to share this link because I did some research on this same subject.


http://www.allfordmustangs.com/forum...no-charts.html
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