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Old 07-16-2003, 04:53   #1 (permalink)
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How does the dual runners switch?

Im putting ECCV + dual runner intake into my EA, and im wondering how the dual runners are switched. I see a vacuum opperated switch at the front, but how does the ECU tell when the vaccum switch to change at 3800rpm? Im guessing im missing a solenoid or something?

Any help?
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Old 07-16-2003, 04:55   #2 (permalink)
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Re: How does the dual runners switch?

Oh, and if it is a solenoid where is it located?
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Old 07-16-2003, 06:34   #3 (permalink)
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Re: How does the dual runners switch?

The vacuum valve at the front of the manifold is activated with a VSV (vacuum operated valve) which is located behind the washer bottle.

I've done this conversion fully, so if you need to know anything, you know where I am.

Rick.
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Old 08-15-2003, 05:18   #4 (permalink)
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Re: Re: How does the dual runners switch?

Quote:
Originally Posted by Soxx
The vacuum valve at the front of the manifold is activated with a VSV (vacuum operated valve) which is located behind the washer bottle.

I've done this conversion fully, so if you need to know anything, you know where I am.

Rick.
maaayte!!!

ive got an EA which has teh BBM fitted but nothnig hooked up to the vacuum hose to switch the manifold (ive got it cable tied on long runners ), so its a dog down low, slow takeofs and that ok at higher revs
how did you go about setting it up?
was there a readymade switching solenoid you bought? or did ya use an EF/L ecu?

cant wait till i get this bitch sorted!
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Old 08-15-2003, 05:29   #5 (permalink)
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Re: How does the dual runners switch?

i used an EF/L soloniod, and cause im running ECCV i just pluged it into the ecu. Works fine.
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Old 08-15-2003, 06:42   #6 (permalink)
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Re: Re: Re: How does the dual runners switch?

Quote:
Originally Posted by MADNC_8
maaayte!!!
ive got an EA which has teh BBM fitted but nothnig hooked up to the vacuum hose to switch the manifold (ive got it cable tied on long runners ), so its a dog down low, slow takeofs and that ok at higher revs
how did you go about setting it up?
was there a readymade switching solenoid you bought? or did ya use an EF/L ecu?
cant wait till i get this bitch sorted!
The switching solenoid (VSV) was purchased rom a wrecker from an EL.
I also had to buy an EL manual ECU.

Rick.
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Old 01-22-2004, 10:22   #7 (permalink)
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Re: How does the dual runners switch?

bit of a dig but soxx did you have to wire up a knock sensor, what sort of wiring alterations had to be made to make it truely ECU operated and did this include the timing change differences between short and long runners?

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Old 01-22-2004, 13:46   #8 (permalink)
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Re: How does the dual runners switch?

You can make a auto switch to change from long to short runners and vice versa out of a rev limiter. Chiptorque were going to do this for my old ea before i sold it maybe they can help you out if you give them a call.....
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Old 01-22-2004, 15:46   #9 (permalink)
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Re: How does the dual runners switch?

But what about the timing change that the ECU does between short and long can the chiptorque doobie do that or is it just a switch
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Old 01-22-2004, 16:38   #10 (permalink)
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Re: How does the dual runners switch?

I dunno give stefan a call and ask him.
When i was going to do the mpfi conversion they just said to use the dual plane manifold they could make a switch out of a rev limiter to make it work.
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