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S4, what works the 6 ports??

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Old Sep 18, 2006 | 05:43 PM
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S4, what works the 6 ports??
Hey guys I was told that the S4 6 ports ran off of throttle and on the S5 they ran off the air tube from the main cat.

is this true or is it the other way around?

HELP!!!
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Old Sep 18, 2006 | 06:16 PM
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1-2 PSI of exhaust backpressure opens the exhaust ports on a S4 NA.

Do a search for VDI regarding S5's.
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Old Sep 18, 2006 | 06:17 PM
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Originally Posted by spot_skater
1-2 PSI of exhaust backpressure opens the exhaust ports on a S4 NA.

Do a search for VDI regarding S5's.
Correct!!
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Old Sep 18, 2006 | 06:38 PM
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ok so I need the air tube to work the ports on an s4?
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Old Sep 19, 2006 | 06:37 AM
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ttt
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Old Sep 19, 2006 | 07:27 AM
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Originally Posted by SpooledupRacing
ok so I need the air tube to work the ports on an s4?
Yes.
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Old Sep 19, 2006 | 08:47 AM
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can someone up pics for him
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Old Sep 19, 2006 | 02:53 PM
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I know how it works I know what I am looking at I just had a different story told to me and wanted to verify it..

I was sure it ran like that
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