Re: Manual Boost Controller Installation - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Manual Boost Controller Installation
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Posted by Dean (more from Dean) on Fri, 29 Jun 2001 09:05:03 Share Post by Email
In Reply to: Manual Boost Controller Installation, MattQ, Thu, 28 Jun 2001 19:26:28
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The instructions with the MBC are mostly what you need. See the univeral install for single turbos. The hose from the turbo compressor housing hose barb is removed from the BPC valve which is near the right head lamp. This is connected to the inlet port on the HBC. That is the port that is inline with the adjustment knob's shaft. The outlet port of the HBC then connects via the HBC supplied hose to the wastegate actuator. So you need to remove the original hose from the wastegate actuator, and place that end of hose over the now vacant hose barb on the BPC valve. That will keep the BPC valve clean and preserved.

That is the basic plumbing. You will have to remove the small dia hose that comes fitted to the HBC outlet, and replace with the larger hose that comes with the kit. Remember that the outlet is the one at 90 degrees to the body. The instructions should also point that out.

You may need longer hoses, you can get hose from the hardware store or auto parts stores. You need to locate the valve so that you can make adjustments and not get burned doing so. Route hoses to avoid the exhaust manifold. You can fasten the valve with wire ties, you may want to prurchase some more than what comes with the kit. Shorter hose lenghts are prefered.

Follow the adjustments details inthe HBC instructions. You will NOT NEED to reset the ECU after hiting the fuel cut pressure. The BPC valve remains connected to its wiring.

Do not cut any factory hoses or remove the factory hose from the turbo compressor hose barb. Use hose couplers to splice for greater length.

You will need to reduce boost in the cooler or cold months as the boost pressure will overshoot and hit the fuel cut pressure.

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