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GrimmSpeed Manual Boost Controller User Manual

Grimmspeed manual boost controller

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GrimmSpeed Manual Boost Controller

Installation Instructions

Manual 300016 RevA

All GrimmSpeed products are intended for Off-Road use only.

Warning (read before installing):

Before moving forward with the setups outlined below, insure that you have the experience
and confidence to properly tune your car. If not, please consult a tuning professional.
Without a proper tune you can overboost and damage your engine.

Under no circumstances is the GrimmSpeed Manual Boost Controller to be used in any
applications where failure of the valve to operate as intended could jeopardize the safety of
the operator or any other person or property.

NOTE:

You MUST run a boost gauge to properly tune the Manual Boost Controller. Raising your

boost level may destroy your engine if you raise it too high without proper tuning.

A. Basics

Our boost controller works by interrupting the pressure seen by the wastegate. If you were
running no boost controller and your turbo was outputting 15psi then your wastegate would
also be seeing 15psi. By placing our boost controller in between the pressure source and
wastegate you are able to limit the amount of pressure that makes its way to the wastegate,
thus you are able to efficiently increase boost pressure. Many OEM wastegates are only able
to handle low psi, however with our boost controller, your vehicle will be able to produce
much higher boost levels than your wastegate would normally allow.