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Old 06-15-2004, 15:02   #1 (permalink)
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What manifold to run?

I am finally pulling my finger out and getting rid of the tennis racquet. I have all the gear to do the mpfi conversion, but now I am thinking of going BBM instead of the standard ea setup. What is involved, and how much better is the BBM setup?
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Old 06-15-2004, 15:24   #2 (permalink)
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Re: What manifold to run?

Depends what your futura plans are.
hardcore performance wise, the ED MPFI manifold flows the best and is probably better if you're going any sort of forced induction.
Speak to Bass Crazy, Thanatos, Rmyers, psycho chicken as they've all done it.
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Old 06-15-2004, 15:25   #3 (permalink)
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Re: What manifold to run?

The BBM is a much better manifold, however it will be a more complicated conversion as you need to change the ECU and add a few more wires.
You will also have to deal with the smartlock problem.

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Old 06-15-2004, 15:40   #4 (permalink)
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Re: What manifold to run?

well you don't *need* to change the ECU, it can be done with relays and rpm switch etc.
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Old 06-15-2004, 15:48   #5 (permalink)
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Re: What manifold to run?

Quote:
Originally Posted by EFFalcon
well you don't *need* to change the ECU, it can be done with relays and rpm switch etc.
If you want to do it properly, you do need to change ECU.
I also used an electronic rpm switch when I first swapped over to BBM, and whilst it worked, it didn't work as good as using the proper ECU.
The ECU doesn't just activate the VSV, it also changes the timing map.

Ignition timing will always be a compromise with the standard ECU, in part defeating the benefits of the BBM.

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Old 06-15-2004, 16:15   #6 (permalink)
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Re: What manifold to run?

your both 100% correct.

For out and out power/easier turbo/sc routing grab an ED manafold.
For drivable torque use an EF/L manafold
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Old 06-15-2004, 16:47   #7 (permalink)
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Re: What manifold to run?

Thanks guys, I think I'll go the ED manifold for the moment. I would like to go the BBM route for the torque factor, but it just seems to be a lot of stuffing around to make the bbm work. Unless there is a easy way around the smart lock issue. I don't want to go putting smart lock in just so I can use a EF/L ecu.
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Old 06-15-2004, 21:08   #8 (permalink)
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Re: What manifold to run?

Quote:
Originally Posted by EFFalcon
Depends what your futura plans are.
You've been around Falcons to much John, "futura" plans ay
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Old 06-16-2004, 04:42   #9 (permalink)
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Re: What manifold to run?

he only wishes he had one... instead of a GLi
least he has a luxury GLi, with leather and wood
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Old 06-16-2004, 04:46   #10 (permalink)
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Re: What manifold to run?

The extra torque is good in daily driving. However without the fuel/spark maps to match (from an EL ECU), it would be pointless.
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