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Old 02-29-2004, 05:28   #1 (permalink)
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BBM - How much more power does it produce?

ive read billions (yes billions) of post saying that the bbm gives a decent amount of power/torque increase but exactly how much more.

does anyone have any dyno graphs or figures quoting how much of an increase they make?

EDIT: This is compared to a stock ea/eb1 mpfi manifold.
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Old 02-29-2004, 15:06   #2 (permalink)
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Re: BBM - How much more power does it produce?

I have done the conversion and it actually lost about 2kw at high revs.
At low to mid revs however it gained around 40nm of torque.

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Old 02-29-2004, 17:13   #3 (permalink)
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Re: BBM - How much more power does it produce?

It gives extra power down low, not up high.

EA/EB/ED manifolds flow better and get more power up high.
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Old 02-29-2004, 17:24   #4 (permalink)
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Re: BBM - How much more power does it produce?

excuse my ignorance, but what is a BBM? And what does it do?
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Old 02-29-2004, 17:36   #5 (permalink)
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Re: BBM - How much more power does it produce?

Broad Band Manifold - the intake manifold such as that on the EF onwards.

It has dual runners that allow for a broader range of intake settings pending on throttle position, and is supoosed to allow more torque and power especially down across the rev range.
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Old 02-29-2004, 17:37   #6 (permalink)
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Re: BBM - How much more power does it produce?

BBM is the inlet manifold on the EF/EL 6's. It produces more torque than the EA/EB/ED manifold, and is a popular upgrade for some.
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Old 02-29-2004, 17:38   #7 (permalink)
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Re: BBM - How much more power does it produce?

And what Dellboy999 said....
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Old 02-29-2004, 17:55   #8 (permalink)
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Re: BBM - How much more power does it produce?

Quote:
Originally Posted by Dellboy999
Broad Band Manifold - the intake manifold such as that on the EF onwards.
It has dual runners that allow for a broader range of intake settings pending on throttle position, and is supoosed to allow more torque and power especially down across the rev range.
Actually the switch point is RPM dependant, not throttle dependant.

Rick.
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What's that?..... Did I hear you say TQE power?
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Old 02-29-2004, 18:10   #9 (permalink)
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Re: BBM - How much more power does it produce?

cool thanks for that!
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Old 02-29-2004, 18:12   #10 (permalink)
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Re: BBM - How much more power does it produce?

...a question along the lines of "I'm stuck" to Soxx or other guys who've already done a BBM conversion....


I've just retro-fitted an EF donk into an XE. BBM switching can be controlled by the Haltech but i need to get an appropriate solenoid.

What type/brand solenoid did you use to activate the BBM diaphragm/actuator?
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