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General BMW Model Discussion
All non E46 BMW model questions in here. Look below for E36, E90 and F30 specific forum. For additional model specific forums check out bimmerfest.com!

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Old 12-23-2013, 05:55 PM   #1
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What is the largest BMW Throttle Body?

Alright you guys, what is the largest diameter BMW throttle body?

Need to know so I can make my m20 intake
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Old 12-23-2013, 06:12 PM   #2
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Probably S85
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Old 12-23-2013, 06:28 PM   #3
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If I had to guess perhaps an N62 which was in the 550i/750i/x5 4.8is? Or N73 and M73 v12s.

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Probably S85
ITBs so I doubt it.
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Old 12-23-2013, 08:19 PM   #4
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Anyone able to measure its ID for me?
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Old 12-23-2013, 11:18 PM   #5
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M20


I am looking forward to seeing the outcome!
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Old 12-24-2013, 04:54 AM   #6
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What's the point... You'll never have injectors large enough that overcome that airflow...

How are you even calculating cfm? What's the cfm calculation? Your throttle body is the choke? lol.
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Old 12-24-2013, 08:06 AM   #7
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Re: What is the largest BMW Throttle Body?

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What's the point... You'll never have injectors large enough that overcome that airflow...

How are you even calculating cfm? What's the cfm calculation? Your throttle body is the choke? lol.
3.2l m20, gt4094 turbo, custom intake. 1000cc injectors, 24gph meth. The stock tb can't even keep up with a cammed engine on the m20.

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Old 12-24-2013, 09:22 AM   #8
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OP wants to know so he can stick his peener in it
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Old 12-24-2013, 02:03 PM   #9
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OP wants to know so he can stick his peener in it
If that is the case, shouldn't he be asking for the smallest one?
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Old 12-24-2013, 02:41 PM   #10
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You should give that turbo to me.
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Old 12-24-2013, 06:43 PM   #11
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What is the largest BMW Throttle Body?

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You should give that turbo to me.
Or me....


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Old 12-24-2013, 06:50 PM   #12
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What's the point... You'll never have injectors large enough that overcome that airflow...

How are you even calculating cfm? What's the cfm calculation? Your throttle body is the choke? lol.
Florida brick shop owner = thermodynamics expert, lol yeah okay dropout
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