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Grimmspeed

GrimmSpeed 3 Port Boost Control Solenoid

Installation Instructions

Hyundai Genesis Coupe 2.0T

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

Park your vehicle on a level surface. Fully engage the parking brake and put wheel stops on

the front and rear wheels to keep the vehicle from rolling.

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 Solenoid 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 tune for this hardware! Using stock or off-the-shelf EM with a 3-port solenoid

installed in interrupt mode will result in overboosting!

A. Purpose

The benefits of this upgrade are faster spool, ability to hold higher boost, and better control

over boost. A side benefit of the improved boost control is the ability to reach higher target

boost levels in the low (1st and 2nd) gears.

Summary of content (4 pages)

PAGE 1
GrimmSpeed 3 Port Boost Control Solenoid Installation Instructions Hyundai Genesis Coupe 2.0T All GrimmSpeed products are intended for Off-Road use only. Park your vehicle on a level surface. Fully engage the parking brake and put wheel stops on the front and rear wheels to keep the vehicle from rolling. 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.
PAGE 2
B. Technical Background A BCS is a binary device – i.e. it is either on (energized), or off. In the context of the Mitsubishi device, when the BCS is energized, air is allowed to pass through the device, while when it is off, the air flow is cut. There are two modes of boost controller operation, at least in this context: “bleed” mode, which is the mode that the stock BCS operates in, and “interrupt” mode, which is the mode that a 3-port BCS can operate in.
PAGE 3
Now able to explicitly control the opening and closing of the wastegate, the ECU is able to control boost with greater precision and reduced response time. Figure 1. Genesis engine bay indicating solenoid mount location. Installation for Hyundai Genesis: Remove factory solenoid including rubber mount(solenoid on left). Unbolt intercooler pipe mount (see picture above). Bolt GrimmSpeed boost control solenoid with the same bolt. Plug the electrical connector and vacuum lines(details below).
PAGE 4
E. External Wastegate(EWG) Installation Hook up vacuum lines. See Figure 3. Port 3 connects to a high-pressure boost source (there is a vacuum nipple on the turbo compressor outlet). Port 2 connects to the bottom port on the external wastegate. The factory restrictor pill should be removed for operation. It is recommended that a plastic zip tie is used to secure vacuum lines. The electrical is plug and play with the supplied connector. Figure 3.