graememk
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| posted on 30/6/06 at 10:18 PM |
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dump valve
i know how they work, but not sure how to fit one.
i know you cut out a bit of the inlet and replace it with a t but theres a small pipe ontop of the dump valve, now where does that fit ?
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PAUL FISHER
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| posted on 30/6/06 at 11:02 PM |
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This is the vacuum pipe,it connects to the inlet manifold,the drop in pressure in the manifold when you lift the throttle,causers a vacuum,which lifts
the piston in the dump valve,and so releasing the boost pressure in the system.
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graememk
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| posted on 1/7/06 at 08:54 AM |
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so connect it to where the brake servo would connect eh ? as i currently have capped it off
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Volvorsport
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| posted on 1/7/06 at 09:52 AM |
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it would help if you said what system you have for fuel , since its important not to dump any metered air , like if you place it after an AMM . a
twin piston is needed so that its not open at idle . it also needs to be placed before the throttle plate .
www.dbsmotorsport.co.uk
getting dirty under a bus
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graememk
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| posted on 1/7/06 at 09:59 AM |
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ok its in my indy engine from a nissan silvia 1.8t running standard injection through megasquirt so theres no air mass meter
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Volvorsport
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| posted on 1/7/06 at 10:19 AM |
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ok , if its MAP based youll be fine on any dump valve , just make sure its placed before the throttle plate , the vacuum nipple on the dump valve can
be taken anywhere after the throttle , just as long as it sees vacuum to open the valve .
www.dbsmotorsport.co.uk
getting dirty under a bus
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