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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > what is the diameter of the throttle body inlet/hole on the manifold?



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      09-04-2012, 09:03 PM   #1
andrey_gta
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what is the diameter of the throttle body inlet/hole on the manifold?

Can someone tell me what the diameter is on the intake it self?

should be around 80mm, am I correct?
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      09-11-2012, 08:33 PM   #2
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80 mm or 8 cm
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      09-12-2012, 11:17 AM   #3
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325i,328i, 330i are 76mm. Not 100% on 1 series.... but if it's the N52 engine then it should be the same.
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      09-12-2012, 02:05 PM   #4
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Originally Posted by N0OS3 View Post
325i,328i, 330i are 76mm. Not 100% on 1 series.... but if it's the N52 engine then it should be the same.
That's for throttle body. Yes they are the same for n52

the actual size of the opening on the Manifold is 80mm
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      09-13-2012, 02:52 AM   #5
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oh. i see what u mean. I agree though, 80mm ^__^
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