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Driving my truck with magnacharger tvs1900

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Old 11-23-2011, 05:18 PM
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Default Driving my truck with magnacharger tvs1900
When I drive my truck the boost is at 5 psi and half way it starts to loose boost anyone has this problem
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Old 11-23-2011, 05:24 PM
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has it always done that? Have you moved recently and your driving elevation change?
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Old 11-23-2011, 05:26 PM
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Naw, it's a new build. It I've lived here all my life. Idk it does that
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Old 11-23-2011, 07:53 PM
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Try switching the line to the by-pass actuator from the vacuum side to the pressure side of the manifold where you measure boost.
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Old 11-23-2011, 07:58 PM
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Might be the crank spinning because the bolts hot
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Old 11-23-2011, 08:07 PM
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Pinning the crank is a good idea but try switching the line at the actuator first.
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Old 11-23-2011, 10:31 PM
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Pin the crank first. If the balancer is spinning on the crank, it is galling & removing metal. You CAN destroy a crank like that.

IMO, every supercharged engine should have a pinned or keyed crank pulley.
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Old 11-23-2011, 11:35 PM
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I'll pin it fri or sat and I'll see what happens
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Old 11-24-2011, 05:40 PM
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The crank bolt is hot after driving the truck
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Old 11-24-2011, 06:06 PM
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Originally Posted by 05 vortec high output
Might be the crank spinning because the bolts hot
Originally Posted by 05 vortec high output
The crank bolt is hot after driving the truck
Are you answering your own question? The bolt wont allow your crank to spin from heat lol, but i bet it makes a hell of alot of heat from the friction once it does spin.
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