Dawes Boost Controller

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Rating scale is from 1 to 10. Low being 1 high being 10

Rating: 9.5
When most people think of boost controllers, they think of adding more boost. While this can be done with a controller, for safety reasons I recommend an ECU as a safer approach. What people often overlook is the spike prevention application for a MBC. If you have a larger downpipe and an ECU combination running high boost that is prone to spikes, a MBC may be what you need. As with any boost modifying modification extreme, care must be used to avoid a small disaster.

Fit: 9
Installation takes less than 30 minutes with only common hand tools. About the only possible trouble spot, is installing the line from the waste-gate actuator to the controller. The hose that connects them fits very tight on the waste-gate side, due to its larger O.D. Click here for installation instructions.

Finish: 10
The deluxe installation kit is well worth the extra money, so you do not have to hunt for parts. If you order the deluxe kit, you get everything you need, including T's, connectors, and even silicone hose.

Performance: See Below
There are two reasons people buy manual boost controllers, either more boost, or to control spiking. For information regarding adding more boost, take a look at the Volvospeed Message Board. You will find feedback from several people regarding Dawes MBC. Because I did not use the MBC to add more boost, I cannot comment on that aspect. In regards to spike prevention, this controller works very well. I used to see spikes in the 3-4 psi range. With the controller in place, the largest I have seen was just over .5 psi.

Note: I will publish any issues as they arise.