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Open Downpipe Problem

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Old 10-12-2006, 11:12 AM
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Default Open Downpipe Problem

Is it possible to run open downpipe and not get boost creep....we were tuning my car yesterday and it would hold 6lbs of boost until about 6000 and creep all the way up to 10lbs at redline and would creep higher with each gear.....i have the deltageate wastegate and i heard they are horrible but im also reading that you are goig to have creep with open downpipe no matter what....is this true and if not what wastegate should i get and does anyone have one for sell....thanks
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Old 10-12-2006, 04:03 PM
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Default Re: Open Downpipe Problem

junk the deltagate. also what manifold are you using. If it is an ebay special I have seen those boost creep due to piss poor desighn. good luck.
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Old 10-12-2006, 05:00 PM
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Default Re: Open Downpipe Problem

no its not an ebay special..i am using a Meunik manifold......so its not the open downpipe letting the boost creep up.....does anyone have any wastegates?
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Old 10-12-2006, 05:01 PM
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Default Re: Open Downpipe Problem

I ran open downpipe on my 38mm Deltagate, no problems. 9lbs all the time.

I guess I had a factory freak
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Old 10-12-2006, 05:05 PM
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Default Re: Open Downpipe Problem

how big is your turbo? it could be too big for your wastegate.
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Old 10-12-2006, 05:06 PM
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Default Re: Open Downpipe Problem

t3/t4 57 trim
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Old 10-12-2006, 05:08 PM
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Default Re: Open Downpipe Problem

i would try switching out the wastegate with a tial or something else.
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Old 10-12-2006, 05:10 PM
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Default Re: Open Downpipe Problem

alright what size wastegate do you think i need?
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Old 10-12-2006, 05:12 PM
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Default Re: Open Downpipe Problem

Is your wastegate line crump'd or collapse'd at all?

I'm currently using a Tial 38mm wastegate on a Turbonectics T3/To4-b trim. No issues at all, even though I never had a issue with my Deltagate.
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Old 10-12-2006, 05:16 PM
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Default Re: Open Downpipe Problem

38mm will be fine, also make sure you have a good size vacuum line running to the gate
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