Thread: Rs Turbo not holding boost
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Old Oct 9, 2018 | 09:58 PM
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RetroTed
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Joined: Oct 2011
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From: Wrexham
Default Rs Turbo not holding boost
Hi all
car is a 1990 and has a stage 1 chip, when it’s boosting to approx 3500rpm it’s on 10psi them drops to 5-6 psi after 3500rpm through to redline

any ideas
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